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2556 lines
75 KiB
2556 lines
75 KiB
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2013 - Raw Material Software Ltd.
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Permission is granted to use this software under the terms of either:
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a) the GPL v2 (or any later version)
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b) the Affero GPL v3
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Details of these licenses can be found at: www.gnu.org/licenses
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.juce.com for more information.
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==============================================================================
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*/
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// a word or space that can't be broken down any further
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struct TextAtom
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{
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//==============================================================================
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String atomText;
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float width;
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int numChars;
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//==============================================================================
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bool isWhitespace() const noexcept { return CharacterFunctions::isWhitespace (atomText[0]); }
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bool isNewLine() const noexcept { return atomText[0] == '\r' || atomText[0] == '\n'; }
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String getText (const juce_wchar passwordCharacter) const
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{
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if (passwordCharacter == 0)
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return atomText;
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return String::repeatedString (String::charToString (passwordCharacter),
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atomText.length());
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}
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String getTrimmedText (const juce_wchar passwordCharacter) const
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{
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if (passwordCharacter == 0)
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return atomText.substring (0, numChars);
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if (isNewLine())
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return String::empty;
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return String::repeatedString (String::charToString (passwordCharacter), numChars);
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}
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};
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//==============================================================================
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// a run of text with a single font and colour
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class TextEditor::UniformTextSection
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{
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public:
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UniformTextSection (const String& text, const Font& f, const Colour col, const juce_wchar passwordChar)
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: font (f), colour (col)
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{
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initialiseAtoms (text, passwordChar);
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}
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UniformTextSection (const UniformTextSection& other)
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: font (other.font), colour (other.colour)
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{
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atoms.ensureStorageAllocated (other.atoms.size());
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for (int i = 0; i < other.atoms.size(); ++i)
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atoms.add (new TextAtom (*other.atoms.getUnchecked(i)));
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}
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~UniformTextSection() {} // (no need to delete the atoms, as they're explicitly deleted by the caller)
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void clear()
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{
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for (int i = atoms.size(); --i >= 0;)
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delete atoms.getUnchecked (i);
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atoms.clear();
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}
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void append (const UniformTextSection& other, const juce_wchar passwordChar)
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{
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if (other.atoms.size() > 0)
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{
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int i = 0;
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if (TextAtom* const lastAtom = atoms.getLast())
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{
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if (! CharacterFunctions::isWhitespace (lastAtom->atomText.getLastCharacter()))
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{
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TextAtom* const first = other.atoms.getUnchecked(0);
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if (! CharacterFunctions::isWhitespace (first->atomText[0]))
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{
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lastAtom->atomText += first->atomText;
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lastAtom->numChars = (uint16) (lastAtom->numChars + first->numChars);
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lastAtom->width = font.getStringWidthFloat (lastAtom->getText (passwordChar));
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delete first;
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++i;
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}
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}
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}
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atoms.ensureStorageAllocated (atoms.size() + other.atoms.size() - i);
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while (i < other.atoms.size())
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{
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atoms.add (other.atoms.getUnchecked(i));
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++i;
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}
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}
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}
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UniformTextSection* split (const int indexToBreakAt, const juce_wchar passwordChar)
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{
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UniformTextSection* const section2 = new UniformTextSection (String::empty, font, colour, passwordChar);
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int index = 0;
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for (int i = 0; i < atoms.size(); ++i)
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{
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TextAtom* const atom = atoms.getUnchecked(i);
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const int nextIndex = index + atom->numChars;
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if (index == indexToBreakAt)
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{
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for (int j = i; j < atoms.size(); ++j)
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section2->atoms.add (atoms.getUnchecked (j));
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for (int j = atoms.size(); --j >= i;)
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atoms.remove (j);
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break;
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}
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else if (indexToBreakAt >= index && indexToBreakAt < nextIndex)
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{
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TextAtom* const secondAtom = new TextAtom();
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secondAtom->atomText = atom->atomText.substring (indexToBreakAt - index);
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secondAtom->width = font.getStringWidthFloat (secondAtom->getText (passwordChar));
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secondAtom->numChars = (uint16) secondAtom->atomText.length();
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section2->atoms.add (secondAtom);
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atom->atomText = atom->atomText.substring (0, indexToBreakAt - index);
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atom->width = font.getStringWidthFloat (atom->getText (passwordChar));
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atom->numChars = (uint16) (indexToBreakAt - index);
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for (int j = i + 1; j < atoms.size(); ++j)
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section2->atoms.add (atoms.getUnchecked (j));
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for (int j = atoms.size(); --j > i;)
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atoms.remove (j);
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break;
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}
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index = nextIndex;
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}
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return section2;
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}
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void appendAllText (MemoryOutputStream& mo) const
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{
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for (int i = 0; i < atoms.size(); ++i)
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mo << atoms.getUnchecked(i)->atomText;
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}
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void appendSubstring (MemoryOutputStream& mo, const Range<int> range) const
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{
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int index = 0;
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for (int i = 0; i < atoms.size(); ++i)
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{
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const TextAtom* const atom = atoms.getUnchecked (i);
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const int nextIndex = index + atom->numChars;
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if (range.getStart() < nextIndex)
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{
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if (range.getEnd() <= index)
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break;
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const Range<int> r ((range - index).getIntersectionWith (Range<int> (0, (int) atom->numChars)));
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if (! r.isEmpty())
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mo << atom->atomText.substring (r.getStart(), r.getEnd());
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}
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index = nextIndex;
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}
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}
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int getTotalLength() const noexcept
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{
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int total = 0;
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for (int i = atoms.size(); --i >= 0;)
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total += atoms.getUnchecked(i)->numChars;
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return total;
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}
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void setFont (const Font& newFont, const juce_wchar passwordChar)
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{
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if (font != newFont)
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{
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font = newFont;
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for (int i = atoms.size(); --i >= 0;)
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{
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TextAtom* const atom = atoms.getUnchecked(i);
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atom->width = newFont.getStringWidthFloat (atom->getText (passwordChar));
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}
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}
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}
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//==============================================================================
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Font font;
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Colour colour;
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Array <TextAtom*> atoms;
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private:
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void initialiseAtoms (const String& textToParse, const juce_wchar passwordChar)
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{
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String::CharPointerType text (textToParse.getCharPointer());
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while (! text.isEmpty())
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{
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size_t numChars = 0;
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String::CharPointerType start (text);
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// create a whitespace atom unless it starts with non-ws
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if (text.isWhitespace() && *text != '\r' && *text != '\n')
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{
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do
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{
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++text;
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++numChars;
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}
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while (text.isWhitespace() && *text != '\r' && *text != '\n');
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}
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else
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{
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if (*text == '\r')
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{
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++text;
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++numChars;
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if (*text == '\n')
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{
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++start;
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++text;
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}
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}
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else if (*text == '\n')
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{
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++text;
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++numChars;
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}
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else
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{
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while (! (text.isEmpty() || text.isWhitespace()))
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{
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++text;
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++numChars;
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}
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}
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}
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TextAtom* const atom = new TextAtom();
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atom->atomText = String (start, numChars);
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atom->width = font.getStringWidthFloat (atom->getText (passwordChar));
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atom->numChars = (uint16) numChars;
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atoms.add (atom);
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}
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}
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UniformTextSection& operator= (const UniformTextSection& other);
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JUCE_LEAK_DETECTOR (UniformTextSection)
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};
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//==============================================================================
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class TextEditor::Iterator
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{
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public:
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Iterator (const Array <UniformTextSection*>& sectionList,
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const float wrapWidth,
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const juce_wchar passwordChar)
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: indexInText (0),
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lineY (0),
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lineHeight (0),
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maxDescent (0),
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atomX (0),
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atomRight (0),
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atom (0),
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currentSection (nullptr),
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sections (sectionList),
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sectionIndex (0),
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atomIndex (0),
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wordWrapWidth (wrapWidth),
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passwordCharacter (passwordChar)
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{
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jassert (wordWrapWidth > 0);
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if (sections.size() > 0)
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{
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currentSection = sections.getUnchecked (sectionIndex);
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if (currentSection != nullptr)
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beginNewLine();
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}
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}
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Iterator (const Iterator& other)
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: indexInText (other.indexInText),
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lineY (other.lineY),
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lineHeight (other.lineHeight),
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maxDescent (other.maxDescent),
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atomX (other.atomX),
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atomRight (other.atomRight),
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atom (other.atom),
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currentSection (other.currentSection),
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sections (other.sections),
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sectionIndex (other.sectionIndex),
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atomIndex (other.atomIndex),
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wordWrapWidth (other.wordWrapWidth),
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passwordCharacter (other.passwordCharacter),
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tempAtom (other.tempAtom)
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{
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}
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//==============================================================================
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bool next()
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{
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if (atom == &tempAtom)
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{
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const int numRemaining = tempAtom.atomText.length() - tempAtom.numChars;
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if (numRemaining > 0)
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{
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tempAtom.atomText = tempAtom.atomText.substring (tempAtom.numChars);
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atomX = 0;
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if (tempAtom.numChars > 0)
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lineY += lineHeight;
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indexInText += tempAtom.numChars;
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GlyphArrangement g;
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g.addLineOfText (currentSection->font, atom->getText (passwordCharacter), 0.0f, 0.0f);
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int split;
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for (split = 0; split < g.getNumGlyphs(); ++split)
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if (shouldWrap (g.getGlyph (split).getRight()))
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break;
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if (split > 0 && split <= numRemaining)
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{
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tempAtom.numChars = (uint16) split;
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tempAtom.width = g.getGlyph (split - 1).getRight();
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atomRight = atomX + tempAtom.width;
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return true;
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}
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}
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}
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bool forceNewLine = false;
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if (sectionIndex >= sections.size())
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{
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moveToEndOfLastAtom();
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return false;
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}
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else if (atomIndex >= currentSection->atoms.size() - 1)
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{
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if (atomIndex >= currentSection->atoms.size())
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{
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if (++sectionIndex >= sections.size())
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{
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moveToEndOfLastAtom();
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return false;
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}
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atomIndex = 0;
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currentSection = sections.getUnchecked (sectionIndex);
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}
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else
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{
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const TextAtom* const lastAtom = currentSection->atoms.getUnchecked (atomIndex);
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if (! lastAtom->isWhitespace())
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{
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// handle the case where the last atom in a section is actually part of the same
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// word as the first atom of the next section...
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float right = atomRight + lastAtom->width;
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float lineHeight2 = lineHeight;
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float maxDescent2 = maxDescent;
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for (int section = sectionIndex + 1; section < sections.size(); ++section)
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{
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const UniformTextSection* const s = sections.getUnchecked (section);
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if (s->atoms.size() == 0)
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break;
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const TextAtom* const nextAtom = s->atoms.getUnchecked (0);
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if (nextAtom->isWhitespace())
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break;
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right += nextAtom->width;
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lineHeight2 = jmax (lineHeight2, s->font.getHeight());
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maxDescent2 = jmax (maxDescent2, s->font.getDescent());
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if (shouldWrap (right))
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{
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lineHeight = lineHeight2;
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maxDescent = maxDescent2;
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forceNewLine = true;
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break;
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}
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if (s->atoms.size() > 1)
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break;
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}
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}
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}
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}
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if (atom != nullptr)
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{
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atomX = atomRight;
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indexInText += atom->numChars;
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if (atom->isNewLine())
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beginNewLine();
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}
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atom = currentSection->atoms.getUnchecked (atomIndex);
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atomRight = atomX + atom->width;
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++atomIndex;
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if (shouldWrap (atomRight) || forceNewLine)
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{
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if (atom->isWhitespace())
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{
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// leave whitespace at the end of a line, but truncate it to avoid scrolling
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atomRight = jmin (atomRight, wordWrapWidth);
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}
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else
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{
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atomRight = atom->width;
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if (shouldWrap (atomRight)) // atom too big to fit on a line, so break it up..
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{
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tempAtom = *atom;
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tempAtom.width = 0;
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tempAtom.numChars = 0;
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atom = &tempAtom;
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if (atomX > 0)
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beginNewLine();
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return next();
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}
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beginNewLine();
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return true;
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}
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}
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return true;
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}
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void beginNewLine()
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{
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atomX = 0;
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lineY += lineHeight;
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int tempSectionIndex = sectionIndex;
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int tempAtomIndex = atomIndex;
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const UniformTextSection* section = sections.getUnchecked (tempSectionIndex);
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lineHeight = section->font.getHeight();
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maxDescent = section->font.getDescent();
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float x = (atom != nullptr) ? atom->width : 0;
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while (! shouldWrap (x))
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{
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if (tempSectionIndex >= sections.size())
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break;
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bool checkSize = false;
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if (tempAtomIndex >= section->atoms.size())
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{
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if (++tempSectionIndex >= sections.size())
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break;
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tempAtomIndex = 0;
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section = sections.getUnchecked (tempSectionIndex);
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checkSize = true;
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}
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const TextAtom* const nextAtom = section->atoms.getUnchecked (tempAtomIndex);
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if (nextAtom == nullptr)
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break;
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x += nextAtom->width;
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if (shouldWrap (x) || nextAtom->isNewLine())
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break;
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if (checkSize)
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{
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lineHeight = jmax (lineHeight, section->font.getHeight());
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maxDescent = jmax (maxDescent, section->font.getDescent());
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}
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++tempAtomIndex;
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}
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}
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//==============================================================================
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void draw (Graphics& g, const UniformTextSection*& lastSection) const
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{
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if (passwordCharacter != 0 || ! atom->isWhitespace())
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{
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if (lastSection != currentSection)
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{
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lastSection = currentSection;
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g.setColour (currentSection->colour);
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g.setFont (currentSection->font);
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}
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jassert (atom->getTrimmedText (passwordCharacter).isNotEmpty());
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GlyphArrangement ga;
|
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ga.addLineOfText (currentSection->font,
|
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atom->getTrimmedText (passwordCharacter),
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atomX, (float) roundToInt (lineY + lineHeight - maxDescent));
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ga.draw (g);
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}
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}
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void addSelection (RectangleList<float>& area, const Range<int> selected) const
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{
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const float startX = indexToX (selected.getStart());
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const float endX = indexToX (selected.getEnd());
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area.add (startX, lineY, endX - startX, lineHeight);
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}
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|
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void drawUnderline (Graphics& g, const Range<int> underline, const Colour colour) const
|
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{
|
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const int startX = roundToInt (indexToX (underline.getStart()));
|
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const int endX = roundToInt (indexToX (underline.getEnd()));
|
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const int baselineY = roundToInt (lineY + currentSection->font.getAscent() + 0.5f);
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Graphics::ScopedSaveState state (g);
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g.reduceClipRegion (Rectangle<int> (startX, baselineY, endX - startX, 1));
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g.fillCheckerBoard (Rectangle<int> (endX, baselineY + 1), 3, 1, colour, Colours::transparentBlack);
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}
|
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|
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void drawSelectedText (Graphics& g,
|
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const Range<int> selected,
|
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const Colour selectedTextColour) const
|
|
{
|
|
if (passwordCharacter != 0 || ! atom->isWhitespace())
|
|
{
|
|
GlyphArrangement ga;
|
|
ga.addLineOfText (currentSection->font,
|
|
atom->getTrimmedText (passwordCharacter),
|
|
atomX, (float) roundToInt (lineY + lineHeight - maxDescent));
|
|
|
|
if (selected.getEnd() < indexInText + atom->numChars)
|
|
{
|
|
GlyphArrangement ga2 (ga);
|
|
ga2.removeRangeOfGlyphs (0, selected.getEnd() - indexInText);
|
|
ga.removeRangeOfGlyphs (selected.getEnd() - indexInText, -1);
|
|
|
|
g.setColour (currentSection->colour);
|
|
ga2.draw (g);
|
|
}
|
|
|
|
if (selected.getStart() > indexInText)
|
|
{
|
|
GlyphArrangement ga2 (ga);
|
|
ga2.removeRangeOfGlyphs (selected.getStart() - indexInText, -1);
|
|
ga.removeRangeOfGlyphs (0, selected.getStart() - indexInText);
|
|
|
|
g.setColour (currentSection->colour);
|
|
ga2.draw (g);
|
|
}
|
|
|
|
g.setColour (selectedTextColour);
|
|
ga.draw (g);
|
|
}
|
|
}
|
|
|
|
//==============================================================================
|
|
float indexToX (const int indexToFind) const
|
|
{
|
|
if (indexToFind <= indexInText)
|
|
return atomX;
|
|
|
|
if (indexToFind >= indexInText + atom->numChars)
|
|
return atomRight;
|
|
|
|
GlyphArrangement g;
|
|
g.addLineOfText (currentSection->font,
|
|
atom->getText (passwordCharacter),
|
|
atomX, 0.0f);
|
|
|
|
if (indexToFind - indexInText >= g.getNumGlyphs())
|
|
return atomRight;
|
|
|
|
return jmin (atomRight, g.getGlyph (indexToFind - indexInText).getLeft());
|
|
}
|
|
|
|
int xToIndex (const float xToFind) const
|
|
{
|
|
if (xToFind <= atomX || atom->isNewLine())
|
|
return indexInText;
|
|
|
|
if (xToFind >= atomRight)
|
|
return indexInText + atom->numChars;
|
|
|
|
GlyphArrangement g;
|
|
g.addLineOfText (currentSection->font,
|
|
atom->getText (passwordCharacter),
|
|
atomX, 0.0f);
|
|
|
|
const int numGlyphs = g.getNumGlyphs();
|
|
|
|
int j;
|
|
for (j = 0; j < numGlyphs; ++j)
|
|
{
|
|
const PositionedGlyph& pg = g.getGlyph(j);
|
|
if ((pg.getLeft() + pg.getRight()) / 2 > xToFind)
|
|
break;
|
|
}
|
|
|
|
return indexInText + j;
|
|
}
|
|
|
|
//==============================================================================
|
|
bool getCharPosition (const int index, float& cx, float& cy, float& lineHeightFound)
|
|
{
|
|
while (next())
|
|
{
|
|
if (indexInText + atom->numChars > index)
|
|
{
|
|
cx = indexToX (index);
|
|
cy = lineY;
|
|
lineHeightFound = lineHeight;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
cx = atomX;
|
|
cy = lineY;
|
|
lineHeightFound = lineHeight;
|
|
return false;
|
|
}
|
|
|
|
//==============================================================================
|
|
int indexInText;
|
|
float lineY, lineHeight, maxDescent;
|
|
float atomX, atomRight;
|
|
const TextAtom* atom;
|
|
const UniformTextSection* currentSection;
|
|
|
|
private:
|
|
const Array <UniformTextSection*>& sections;
|
|
int sectionIndex, atomIndex;
|
|
const float wordWrapWidth;
|
|
const juce_wchar passwordCharacter;
|
|
TextAtom tempAtom;
|
|
|
|
Iterator& operator= (const Iterator&);
|
|
|
|
void moveToEndOfLastAtom()
|
|
{
|
|
if (atom != nullptr)
|
|
{
|
|
atomX = atomRight;
|
|
|
|
if (atom->isNewLine())
|
|
{
|
|
atomX = 0.0f;
|
|
lineY += lineHeight;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool shouldWrap (const float x) const noexcept
|
|
{
|
|
return (x - 0.0001f) >= wordWrapWidth;
|
|
}
|
|
|
|
JUCE_LEAK_DETECTOR (Iterator)
|
|
};
|
|
|
|
|
|
//==============================================================================
|
|
class TextEditor::InsertAction : public UndoableAction
|
|
{
|
|
public:
|
|
InsertAction (TextEditor& ed,
|
|
const String& newText,
|
|
const int insertPos,
|
|
const Font& newFont,
|
|
const Colour newColour,
|
|
const int oldCaret,
|
|
const int newCaret)
|
|
: owner (ed),
|
|
text (newText),
|
|
insertIndex (insertPos),
|
|
oldCaretPos (oldCaret),
|
|
newCaretPos (newCaret),
|
|
font (newFont),
|
|
colour (newColour)
|
|
{
|
|
}
|
|
|
|
bool perform()
|
|
{
|
|
owner.insert (text, insertIndex, font, colour, 0, newCaretPos);
|
|
return true;
|
|
}
|
|
|
|
bool undo()
|
|
{
|
|
owner.remove (Range<int> (insertIndex, insertIndex + text.length()), 0, oldCaretPos);
|
|
return true;
|
|
}
|
|
|
|
int getSizeInUnits()
|
|
{
|
|
return text.length() + 16;
|
|
}
|
|
|
|
private:
|
|
TextEditor& owner;
|
|
const String text;
|
|
const int insertIndex, oldCaretPos, newCaretPos;
|
|
const Font font;
|
|
const Colour colour;
|
|
|
|
JUCE_DECLARE_NON_COPYABLE (InsertAction)
|
|
};
|
|
|
|
//==============================================================================
|
|
class TextEditor::RemoveAction : public UndoableAction
|
|
{
|
|
public:
|
|
RemoveAction (TextEditor& ed,
|
|
const Range<int> rangeToRemove,
|
|
const int oldCaret,
|
|
const int newCaret,
|
|
const Array <UniformTextSection*>& oldSections)
|
|
: owner (ed),
|
|
range (rangeToRemove),
|
|
oldCaretPos (oldCaret),
|
|
newCaretPos (newCaret),
|
|
removedSections (oldSections)
|
|
{
|
|
}
|
|
|
|
~RemoveAction()
|
|
{
|
|
for (int i = removedSections.size(); --i >= 0;)
|
|
{
|
|
ScopedPointer<UniformTextSection> section (removedSections.getUnchecked (i));
|
|
section->clear();
|
|
}
|
|
}
|
|
|
|
bool perform()
|
|
{
|
|
owner.remove (range, 0, newCaretPos);
|
|
return true;
|
|
}
|
|
|
|
bool undo()
|
|
{
|
|
owner.reinsert (range.getStart(), removedSections);
|
|
owner.moveCaretTo (oldCaretPos, false);
|
|
return true;
|
|
}
|
|
|
|
int getSizeInUnits()
|
|
{
|
|
int n = 16;
|
|
for (int i = removedSections.size(); --i >= 0;)
|
|
n += removedSections.getUnchecked (i)->getTotalLength();
|
|
|
|
return n;
|
|
}
|
|
|
|
private:
|
|
TextEditor& owner;
|
|
const Range<int> range;
|
|
const int oldCaretPos, newCaretPos;
|
|
Array <UniformTextSection*> removedSections;
|
|
|
|
JUCE_DECLARE_NON_COPYABLE (RemoveAction)
|
|
};
|
|
|
|
//==============================================================================
|
|
class TextEditor::TextHolderComponent : public Component,
|
|
public Timer,
|
|
public ValueListener
|
|
{
|
|
public:
|
|
TextHolderComponent (TextEditor& ed) : owner (ed)
|
|
{
|
|
setWantsKeyboardFocus (false);
|
|
setInterceptsMouseClicks (false, true);
|
|
setMouseCursor (MouseCursor::ParentCursor);
|
|
|
|
owner.getTextValue().addListener (this);
|
|
}
|
|
|
|
~TextHolderComponent()
|
|
{
|
|
owner.getTextValue().removeListener (this);
|
|
}
|
|
|
|
void paint (Graphics& g) override
|
|
{
|
|
owner.drawContent (g);
|
|
}
|
|
|
|
void restartTimer()
|
|
{
|
|
startTimer (350);
|
|
}
|
|
|
|
void timerCallback() override
|
|
{
|
|
owner.timerCallbackInt();
|
|
}
|
|
|
|
void valueChanged (Value&) override
|
|
{
|
|
owner.textWasChangedByValue();
|
|
}
|
|
|
|
private:
|
|
TextEditor& owner;
|
|
|
|
JUCE_DECLARE_NON_COPYABLE (TextHolderComponent)
|
|
};
|
|
|
|
//==============================================================================
|
|
class TextEditorViewport : public Viewport
|
|
{
|
|
public:
|
|
TextEditorViewport (TextEditor& ed)
|
|
: owner (ed), lastWordWrapWidth (0), rentrant (false)
|
|
{
|
|
}
|
|
|
|
void visibleAreaChanged (const Rectangle<int>&) override
|
|
{
|
|
if (! rentrant) // it's rare, but possible to get into a feedback loop as the viewport's scrollbars
|
|
// appear and disappear, causing the wrap width to change.
|
|
{
|
|
const float wordWrapWidth = owner.getWordWrapWidth();
|
|
|
|
if (wordWrapWidth != lastWordWrapWidth)
|
|
{
|
|
lastWordWrapWidth = wordWrapWidth;
|
|
|
|
rentrant = true;
|
|
owner.updateTextHolderSize();
|
|
rentrant = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
private:
|
|
TextEditor& owner;
|
|
float lastWordWrapWidth;
|
|
bool rentrant;
|
|
|
|
JUCE_DECLARE_NON_COPYABLE (TextEditorViewport)
|
|
};
|
|
|
|
//==============================================================================
|
|
namespace TextEditorDefs
|
|
{
|
|
const int textChangeMessageId = 0x10003001;
|
|
const int returnKeyMessageId = 0x10003002;
|
|
const int escapeKeyMessageId = 0x10003003;
|
|
const int focusLossMessageId = 0x10003004;
|
|
|
|
const int maxActionsPerTransaction = 100;
|
|
|
|
static int getCharacterCategory (const juce_wchar character)
|
|
{
|
|
return CharacterFunctions::isLetterOrDigit (character)
|
|
? 2 : (CharacterFunctions::isWhitespace (character) ? 0 : 1);
|
|
}
|
|
}
|
|
|
|
//==============================================================================
|
|
TextEditor::TextEditor (const String& name,
|
|
const juce_wchar passwordChar)
|
|
: Component (name),
|
|
borderSize (1, 1, 1, 3),
|
|
readOnly (false),
|
|
multiline (false),
|
|
wordWrap (false),
|
|
returnKeyStartsNewLine (false),
|
|
popupMenuEnabled (true),
|
|
selectAllTextWhenFocused (false),
|
|
scrollbarVisible (true),
|
|
wasFocused (false),
|
|
keepCaretOnScreen (true),
|
|
tabKeyUsed (false),
|
|
menuActive (false),
|
|
valueTextNeedsUpdating (false),
|
|
consumeEscAndReturnKeys (true),
|
|
leftIndent (4),
|
|
topIndent (4),
|
|
lastTransactionTime (0),
|
|
currentFont (14.0f),
|
|
totalNumChars (0),
|
|
caretPosition (0),
|
|
passwordCharacter (passwordChar),
|
|
dragType (notDragging)
|
|
{
|
|
setOpaque (true);
|
|
setMouseCursor (MouseCursor::IBeamCursor);
|
|
|
|
addAndMakeVisible (viewport = new TextEditorViewport (*this));
|
|
viewport->setViewedComponent (textHolder = new TextHolderComponent (*this));
|
|
viewport->setWantsKeyboardFocus (false);
|
|
viewport->setScrollBarsShown (false, false);
|
|
|
|
setWantsKeyboardFocus (true);
|
|
setCaretVisible (true);
|
|
}
|
|
|
|
TextEditor::~TextEditor()
|
|
{
|
|
if (wasFocused)
|
|
if (ComponentPeer* const peer = getPeer())
|
|
peer->dismissPendingTextInput();
|
|
|
|
textValue.removeListener (textHolder);
|
|
textValue.referTo (Value());
|
|
clearInternal (0);
|
|
viewport = nullptr;
|
|
textHolder = nullptr;
|
|
}
|
|
|
|
//==============================================================================
|
|
void TextEditor::newTransaction()
|
|
{
|
|
lastTransactionTime = Time::getApproximateMillisecondCounter();
|
|
undoManager.beginNewTransaction();
|
|
}
|
|
|
|
bool TextEditor::undoOrRedo (const bool shouldUndo)
|
|
{
|
|
if (! isReadOnly())
|
|
{
|
|
newTransaction();
|
|
|
|
if (shouldUndo ? undoManager.undo()
|
|
: undoManager.redo())
|
|
{
|
|
scrollToMakeSureCursorIsVisible();
|
|
repaint();
|
|
textChanged();
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool TextEditor::undo() { return undoOrRedo (true); }
|
|
bool TextEditor::redo() { return undoOrRedo (false); }
|
|
|
|
//==============================================================================
|
|
void TextEditor::setMultiLine (const bool shouldBeMultiLine,
|
|
const bool shouldWordWrap)
|
|
{
|
|
if (multiline != shouldBeMultiLine
|
|
|| wordWrap != (shouldWordWrap && shouldBeMultiLine))
|
|
{
|
|
multiline = shouldBeMultiLine;
|
|
wordWrap = shouldWordWrap && shouldBeMultiLine;
|
|
|
|
viewport->setScrollBarsShown (scrollbarVisible && multiline,
|
|
scrollbarVisible && multiline);
|
|
viewport->setViewPosition (0, 0);
|
|
resized();
|
|
scrollToMakeSureCursorIsVisible();
|
|
}
|
|
}
|
|
|
|
bool TextEditor::isMultiLine() const
|
|
{
|
|
return multiline;
|
|
}
|
|
|
|
void TextEditor::setScrollbarsShown (bool shown)
|
|
{
|
|
if (scrollbarVisible != shown)
|
|
{
|
|
scrollbarVisible = shown;
|
|
shown = shown && isMultiLine();
|
|
viewport->setScrollBarsShown (shown, shown);
|
|
}
|
|
}
|
|
|
|
void TextEditor::setReadOnly (const bool shouldBeReadOnly)
|
|
{
|
|
if (readOnly != shouldBeReadOnly)
|
|
{
|
|
readOnly = shouldBeReadOnly;
|
|
enablementChanged();
|
|
}
|
|
}
|
|
|
|
bool TextEditor::isReadOnly() const
|
|
{
|
|
return readOnly || ! isEnabled();
|
|
}
|
|
|
|
bool TextEditor::isTextInputActive() const
|
|
{
|
|
return ! isReadOnly();
|
|
}
|
|
|
|
void TextEditor::setReturnKeyStartsNewLine (const bool shouldStartNewLine)
|
|
{
|
|
returnKeyStartsNewLine = shouldStartNewLine;
|
|
}
|
|
|
|
void TextEditor::setTabKeyUsedAsCharacter (const bool shouldTabKeyBeUsed)
|
|
{
|
|
tabKeyUsed = shouldTabKeyBeUsed;
|
|
}
|
|
|
|
void TextEditor::setPopupMenuEnabled (const bool b)
|
|
{
|
|
popupMenuEnabled = b;
|
|
}
|
|
|
|
void TextEditor::setSelectAllWhenFocused (const bool b)
|
|
{
|
|
selectAllTextWhenFocused = b;
|
|
}
|
|
|
|
//==============================================================================
|
|
void TextEditor::setFont (const Font& newFont)
|
|
{
|
|
currentFont = newFont;
|
|
scrollToMakeSureCursorIsVisible();
|
|
}
|
|
|
|
void TextEditor::applyFontToAllText (const Font& newFont)
|
|
{
|
|
currentFont = newFont;
|
|
const Colour overallColour (findColour (textColourId));
|
|
|
|
for (int i = sections.size(); --i >= 0;)
|
|
{
|
|
UniformTextSection* const uts = sections.getUnchecked (i);
|
|
uts->setFont (newFont, passwordCharacter);
|
|
uts->colour = overallColour;
|
|
}
|
|
|
|
coalesceSimilarSections();
|
|
updateTextHolderSize();
|
|
scrollToMakeSureCursorIsVisible();
|
|
repaint();
|
|
}
|
|
|
|
void TextEditor::colourChanged()
|
|
{
|
|
setOpaque (findColour (backgroundColourId).isOpaque());
|
|
repaint();
|
|
}
|
|
|
|
void TextEditor::lookAndFeelChanged()
|
|
{
|
|
if (isCaretVisible())
|
|
{
|
|
setCaretVisible (false);
|
|
setCaretVisible (true);
|
|
updateCaretPosition();
|
|
}
|
|
}
|
|
|
|
void TextEditor::setCaretVisible (const bool shouldCaretBeVisible)
|
|
{
|
|
if (shouldCaretBeVisible && ! isReadOnly())
|
|
{
|
|
if (caret == nullptr)
|
|
textHolder->addChildComponent (caret = getLookAndFeel().createCaretComponent (this));
|
|
}
|
|
else
|
|
{
|
|
caret = nullptr;
|
|
}
|
|
}
|
|
|
|
void TextEditor::updateCaretPosition()
|
|
{
|
|
if (caret != nullptr)
|
|
caret->setCaretPosition (getCaretRectangle().translated (leftIndent, topIndent));
|
|
}
|
|
|
|
TextEditor::LengthAndCharacterRestriction::LengthAndCharacterRestriction (int maxLen, const String& chars)
|
|
: allowedCharacters (chars), maxLength (maxLen)
|
|
{}
|
|
|
|
String TextEditor::LengthAndCharacterRestriction::filterNewText (TextEditor& ed, const String& newInput)
|
|
{
|
|
String t (newInput);
|
|
|
|
if (allowedCharacters.isNotEmpty())
|
|
t = t.retainCharacters (allowedCharacters);
|
|
|
|
if (maxLength > 0)
|
|
t = t.substring (0, maxLength - (ed.getTotalNumChars() - ed.getHighlightedRegion().getLength()));
|
|
|
|
return t;
|
|
}
|
|
|
|
void TextEditor::setInputFilter (InputFilter* newFilter, bool takeOwnership)
|
|
{
|
|
inputFilter.set (newFilter, takeOwnership);
|
|
}
|
|
|
|
void TextEditor::setInputRestrictions (const int maxLen,
|
|
const String& chars)
|
|
{
|
|
setInputFilter (new LengthAndCharacterRestriction (maxLen, chars), true);
|
|
}
|
|
|
|
void TextEditor::setTextToShowWhenEmpty (const String& text, Colour colourToUse)
|
|
{
|
|
textToShowWhenEmpty = text;
|
|
colourForTextWhenEmpty = colourToUse;
|
|
}
|
|
|
|
void TextEditor::setPasswordCharacter (const juce_wchar newPasswordCharacter)
|
|
{
|
|
if (passwordCharacter != newPasswordCharacter)
|
|
{
|
|
passwordCharacter = newPasswordCharacter;
|
|
applyFontToAllText (currentFont);
|
|
}
|
|
}
|
|
|
|
void TextEditor::setScrollBarThickness (const int newThicknessPixels)
|
|
{
|
|
viewport->setScrollBarThickness (newThicknessPixels);
|
|
}
|
|
|
|
//==============================================================================
|
|
void TextEditor::clear()
|
|
{
|
|
clearInternal (0);
|
|
updateTextHolderSize();
|
|
undoManager.clearUndoHistory();
|
|
}
|
|
|
|
void TextEditor::setText (const String& newText,
|
|
const bool sendTextChangeMessage)
|
|
{
|
|
const int newLength = newText.length();
|
|
|
|
if (newLength != getTotalNumChars() || getText() != newText)
|
|
{
|
|
textValue = newText;
|
|
|
|
int oldCursorPos = caretPosition;
|
|
const bool cursorWasAtEnd = oldCursorPos >= getTotalNumChars();
|
|
|
|
clearInternal (0);
|
|
insert (newText, 0, currentFont, findColour (textColourId), 0, caretPosition);
|
|
|
|
// if you're adding text with line-feeds to a single-line text editor, it
|
|
// ain't gonna look right!
|
|
jassert (multiline || ! newText.containsAnyOf ("\r\n"));
|
|
|
|
if (cursorWasAtEnd && ! isMultiLine())
|
|
oldCursorPos = getTotalNumChars();
|
|
|
|
moveCaretTo (oldCursorPos, false);
|
|
|
|
if (sendTextChangeMessage)
|
|
textChanged();
|
|
|
|
updateTextHolderSize();
|
|
scrollToMakeSureCursorIsVisible();
|
|
undoManager.clearUndoHistory();
|
|
|
|
repaint();
|
|
}
|
|
}
|
|
|
|
//==============================================================================
|
|
void TextEditor::updateValueFromText()
|
|
{
|
|
if (valueTextNeedsUpdating)
|
|
{
|
|
valueTextNeedsUpdating = false;
|
|
textValue = getText();
|
|
}
|
|
}
|
|
|
|
Value& TextEditor::getTextValue()
|
|
{
|
|
updateValueFromText();
|
|
return textValue;
|
|
}
|
|
|
|
void TextEditor::textWasChangedByValue()
|
|
{
|
|
if (textValue.getValueSource().getReferenceCount() > 1)
|
|
setText (textValue.getValue());
|
|
}
|
|
|
|
//==============================================================================
|
|
void TextEditor::textChanged()
|
|
{
|
|
updateTextHolderSize();
|
|
|
|
if (listeners.size() > 0)
|
|
postCommandMessage (TextEditorDefs::textChangeMessageId);
|
|
|
|
if (textValue.getValueSource().getReferenceCount() > 1)
|
|
{
|
|
valueTextNeedsUpdating = false;
|
|
textValue = getText();
|
|
}
|
|
}
|
|
|
|
void TextEditor::returnPressed() { postCommandMessage (TextEditorDefs::returnKeyMessageId); }
|
|
void TextEditor::escapePressed() { postCommandMessage (TextEditorDefs::escapeKeyMessageId); }
|
|
|
|
void TextEditor::addListener (TextEditorListener* const l) { listeners.add (l); }
|
|
void TextEditor::removeListener (TextEditorListener* const l) { listeners.remove (l); }
|
|
|
|
//==============================================================================
|
|
void TextEditor::timerCallbackInt()
|
|
{
|
|
if (hasKeyboardFocus (false) && ! isCurrentlyBlockedByAnotherModalComponent())
|
|
wasFocused = true;
|
|
|
|
const unsigned int now = Time::getApproximateMillisecondCounter();
|
|
|
|
if (now > lastTransactionTime + 200)
|
|
newTransaction();
|
|
}
|
|
|
|
void TextEditor::repaintText (const Range<int> range)
|
|
{
|
|
if (! range.isEmpty())
|
|
{
|
|
float x = 0, y = 0, lh = currentFont.getHeight();
|
|
|
|
const float wordWrapWidth = getWordWrapWidth();
|
|
|
|
if (wordWrapWidth > 0)
|
|
{
|
|
Iterator i (sections, wordWrapWidth, passwordCharacter);
|
|
|
|
i.getCharPosition (range.getStart(), x, y, lh);
|
|
|
|
const int y1 = (int) y;
|
|
int y2;
|
|
|
|
if (range.getEnd() >= getTotalNumChars())
|
|
{
|
|
y2 = textHolder->getHeight();
|
|
}
|
|
else
|
|
{
|
|
i.getCharPosition (range.getEnd(), x, y, lh);
|
|
y2 = (int) (y + lh * 2.0f);
|
|
}
|
|
|
|
textHolder->repaint (0, y1, textHolder->getWidth(), y2 - y1);
|
|
}
|
|
}
|
|
}
|
|
|
|
//==============================================================================
|
|
void TextEditor::moveCaret (int newCaretPos)
|
|
{
|
|
if (newCaretPos < 0)
|
|
newCaretPos = 0;
|
|
else if (newCaretPos > getTotalNumChars())
|
|
newCaretPos = getTotalNumChars();
|
|
|
|
if (newCaretPos != getCaretPosition())
|
|
{
|
|
caretPosition = newCaretPos;
|
|
textHolder->restartTimer();
|
|
scrollToMakeSureCursorIsVisible();
|
|
updateCaretPosition();
|
|
}
|
|
}
|
|
|
|
int TextEditor::getCaretPosition() const
|
|
{
|
|
return caretPosition;
|
|
}
|
|
|
|
void TextEditor::setCaretPosition (const int newIndex)
|
|
{
|
|
moveCaretTo (newIndex, false);
|
|
}
|
|
|
|
void TextEditor::moveCaretToEnd()
|
|
{
|
|
moveCaretTo (std::numeric_limits<int>::max(), false);
|
|
}
|
|
|
|
void TextEditor::scrollEditorToPositionCaret (const int desiredCaretX,
|
|
const int desiredCaretY)
|
|
|
|
{
|
|
updateCaretPosition();
|
|
|
|
const Rectangle<int> caretPos (getCaretRectangle());
|
|
|
|
int vx = caretPos.getX() - desiredCaretX;
|
|
int vy = caretPos.getY() - desiredCaretY;
|
|
|
|
if (desiredCaretX < jmax (1, proportionOfWidth (0.05f)))
|
|
vx += desiredCaretX - proportionOfWidth (0.2f);
|
|
else if (desiredCaretX > jmax (0, viewport->getMaximumVisibleWidth() - (wordWrap ? 2 : 10)))
|
|
vx += desiredCaretX + (isMultiLine() ? proportionOfWidth (0.2f) : 10) - viewport->getMaximumVisibleWidth();
|
|
|
|
vx = jlimit (0, jmax (0, textHolder->getWidth() + 8 - viewport->getMaximumVisibleWidth()), vx);
|
|
|
|
if (! isMultiLine())
|
|
{
|
|
vy = viewport->getViewPositionY();
|
|
}
|
|
else
|
|
{
|
|
vy = jlimit (0, jmax (0, textHolder->getHeight() - viewport->getMaximumVisibleHeight()), vy);
|
|
|
|
if (desiredCaretY < 0)
|
|
vy = jmax (0, desiredCaretY + vy);
|
|
else if (desiredCaretY > jmax (0, viewport->getMaximumVisibleHeight() - topIndent - caretPos.getHeight()))
|
|
vy += desiredCaretY + 2 + caretPos.getHeight() + topIndent - viewport->getMaximumVisibleHeight();
|
|
}
|
|
|
|
viewport->setViewPosition (vx, vy);
|
|
}
|
|
|
|
Rectangle<int> TextEditor::getCaretRectangle()
|
|
{
|
|
float cursorX, cursorY;
|
|
float cursorHeight = currentFont.getHeight(); // (in case the text is empty and the call below doesn't set this value)
|
|
getCharPosition (caretPosition, cursorX, cursorY, cursorHeight);
|
|
|
|
return Rectangle<int> (roundToInt (cursorX), roundToInt (cursorY), 2, roundToInt (cursorHeight));
|
|
}
|
|
|
|
//==============================================================================
|
|
enum { rightEdgeSpace = 2 };
|
|
|
|
float TextEditor::getWordWrapWidth() const
|
|
{
|
|
return wordWrap ? (float) (viewport->getMaximumVisibleWidth() - (leftIndent + rightEdgeSpace + 1))
|
|
: std::numeric_limits<float>::max();
|
|
}
|
|
|
|
void TextEditor::updateTextHolderSize()
|
|
{
|
|
const float wordWrapWidth = getWordWrapWidth();
|
|
|
|
if (wordWrapWidth > 0)
|
|
{
|
|
float maxWidth = 0.0f;
|
|
|
|
Iterator i (sections, wordWrapWidth, passwordCharacter);
|
|
|
|
while (i.next())
|
|
maxWidth = jmax (maxWidth, i.atomRight);
|
|
|
|
const int w = leftIndent + roundToInt (maxWidth);
|
|
const int h = topIndent + roundToInt (jmax (i.lineY + i.lineHeight,
|
|
currentFont.getHeight()));
|
|
|
|
textHolder->setSize (w + rightEdgeSpace, h + 1); // (allows a bit of space for the cursor to be at the right-hand-edge)
|
|
}
|
|
}
|
|
|
|
int TextEditor::getTextWidth() const { return textHolder->getWidth(); }
|
|
int TextEditor::getTextHeight() const { return textHolder->getHeight(); }
|
|
|
|
void TextEditor::setIndents (const int newLeftIndent, const int newTopIndent)
|
|
{
|
|
leftIndent = newLeftIndent;
|
|
topIndent = newTopIndent;
|
|
}
|
|
|
|
void TextEditor::setBorder (const BorderSize<int>& border)
|
|
{
|
|
borderSize = border;
|
|
resized();
|
|
}
|
|
|
|
BorderSize<int> TextEditor::getBorder() const
|
|
{
|
|
return borderSize;
|
|
}
|
|
|
|
void TextEditor::setScrollToShowCursor (const bool shouldScrollToShowCursor)
|
|
{
|
|
keepCaretOnScreen = shouldScrollToShowCursor;
|
|
}
|
|
|
|
void TextEditor::scrollToMakeSureCursorIsVisible()
|
|
{
|
|
updateCaretPosition();
|
|
|
|
if (keepCaretOnScreen)
|
|
{
|
|
int x = viewport->getViewPositionX();
|
|
int y = viewport->getViewPositionY();
|
|
|
|
const Rectangle<int> caretPos (getCaretRectangle());
|
|
|
|
const int relativeCursorX = caretPos.getX() - x;
|
|
const int relativeCursorY = caretPos.getY() - y;
|
|
|
|
if (relativeCursorX < jmax (1, proportionOfWidth (0.05f)))
|
|
{
|
|
x += relativeCursorX - proportionOfWidth (0.2f);
|
|
}
|
|
else if (relativeCursorX > jmax (0, viewport->getMaximumVisibleWidth() - (wordWrap ? 2 : 10)))
|
|
{
|
|
x += relativeCursorX + (isMultiLine() ? proportionOfWidth (0.2f) : 10) - viewport->getMaximumVisibleWidth();
|
|
}
|
|
|
|
x = jlimit (0, jmax (0, textHolder->getWidth() + 8 - viewport->getMaximumVisibleWidth()), x);
|
|
|
|
if (! isMultiLine())
|
|
{
|
|
y = (getHeight() - textHolder->getHeight() - topIndent) / -2;
|
|
}
|
|
else
|
|
{
|
|
if (relativeCursorY < 0)
|
|
{
|
|
y = jmax (0, relativeCursorY + y);
|
|
}
|
|
else if (relativeCursorY > jmax (0, viewport->getMaximumVisibleHeight() - topIndent - caretPos.getHeight()))
|
|
{
|
|
y += relativeCursorY + 2 + caretPos.getHeight() + topIndent - viewport->getMaximumVisibleHeight();
|
|
}
|
|
}
|
|
|
|
viewport->setViewPosition (x, y);
|
|
}
|
|
}
|
|
|
|
void TextEditor::moveCaretTo (const int newPosition,
|
|
const bool isSelecting)
|
|
{
|
|
if (isSelecting)
|
|
{
|
|
moveCaret (newPosition);
|
|
|
|
const Range<int> oldSelection (selection);
|
|
|
|
if (dragType == notDragging)
|
|
{
|
|
if (abs (getCaretPosition() - selection.getStart()) < abs (getCaretPosition() - selection.getEnd()))
|
|
dragType = draggingSelectionStart;
|
|
else
|
|
dragType = draggingSelectionEnd;
|
|
}
|
|
|
|
if (dragType == draggingSelectionStart)
|
|
{
|
|
if (getCaretPosition() >= selection.getEnd())
|
|
dragType = draggingSelectionEnd;
|
|
|
|
selection = Range<int>::between (getCaretPosition(), selection.getEnd());
|
|
}
|
|
else
|
|
{
|
|
if (getCaretPosition() < selection.getStart())
|
|
dragType = draggingSelectionStart;
|
|
|
|
selection = Range<int>::between (getCaretPosition(), selection.getStart());
|
|
}
|
|
|
|
repaintText (selection.getUnionWith (oldSelection));
|
|
}
|
|
else
|
|
{
|
|
dragType = notDragging;
|
|
|
|
repaintText (selection);
|
|
|
|
moveCaret (newPosition);
|
|
selection = Range<int>::emptyRange (getCaretPosition());
|
|
}
|
|
}
|
|
|
|
int TextEditor::getTextIndexAt (const int x, const int y)
|
|
{
|
|
return indexAtPosition ((float) (x + viewport->getViewPositionX() - leftIndent),
|
|
(float) (y + viewport->getViewPositionY() - topIndent));
|
|
}
|
|
|
|
void TextEditor::insertTextAtCaret (const String& t)
|
|
{
|
|
String newText (inputFilter != nullptr ? inputFilter->filterNewText (*this, t) : t);
|
|
|
|
if (isMultiLine())
|
|
newText = newText.replace ("\r\n", "\n");
|
|
else
|
|
newText = newText.replaceCharacters ("\r\n", " ");
|
|
|
|
const int insertIndex = selection.getStart();
|
|
const int newCaretPos = insertIndex + newText.length();
|
|
|
|
remove (selection, getUndoManager(),
|
|
newText.isNotEmpty() ? newCaretPos - 1 : newCaretPos);
|
|
|
|
insert (newText, insertIndex, currentFont, findColour (textColourId),
|
|
getUndoManager(), newCaretPos);
|
|
|
|
textChanged();
|
|
}
|
|
|
|
void TextEditor::setHighlightedRegion (const Range<int>& newSelection)
|
|
{
|
|
moveCaretTo (newSelection.getStart(), false);
|
|
moveCaretTo (newSelection.getEnd(), true);
|
|
}
|
|
|
|
//==============================================================================
|
|
void TextEditor::copy()
|
|
{
|
|
if (passwordCharacter == 0)
|
|
{
|
|
const String selectedText (getHighlightedText());
|
|
|
|
if (selectedText.isNotEmpty())
|
|
SystemClipboard::copyTextToClipboard (selectedText);
|
|
}
|
|
}
|
|
|
|
void TextEditor::paste()
|
|
{
|
|
if (! isReadOnly())
|
|
{
|
|
const String clip (SystemClipboard::getTextFromClipboard());
|
|
|
|
if (clip.isNotEmpty())
|
|
insertTextAtCaret (clip);
|
|
}
|
|
}
|
|
|
|
void TextEditor::cut()
|
|
{
|
|
if (! isReadOnly())
|
|
{
|
|
moveCaret (selection.getEnd());
|
|
insertTextAtCaret (String::empty);
|
|
}
|
|
}
|
|
|
|
//==============================================================================
|
|
void TextEditor::drawContent (Graphics& g)
|
|
{
|
|
const float wordWrapWidth = getWordWrapWidth();
|
|
|
|
if (wordWrapWidth > 0)
|
|
{
|
|
g.setOrigin (leftIndent, topIndent);
|
|
const Rectangle<int> clip (g.getClipBounds());
|
|
Colour selectedTextColour;
|
|
|
|
Iterator i (sections, wordWrapWidth, passwordCharacter);
|
|
|
|
if (! selection.isEmpty())
|
|
{
|
|
Iterator i2 (i);
|
|
RectangleList<float> selectionArea;
|
|
|
|
while (i2.next() && i2.lineY < clip.getBottom())
|
|
{
|
|
if (i2.lineY + i2.lineHeight >= clip.getY()
|
|
&& selection.intersects (Range<int> (i2.indexInText, i2.indexInText + i2.atom->numChars)))
|
|
{
|
|
i2.addSelection (selectionArea, selection);
|
|
}
|
|
}
|
|
|
|
g.setColour (findColour (highlightColourId).withMultipliedAlpha (hasKeyboardFocus (true) ? 1.0f : 0.5f));
|
|
g.fillRectList (selectionArea);
|
|
|
|
selectedTextColour = findColour (highlightedTextColourId);
|
|
}
|
|
|
|
const UniformTextSection* lastSection = nullptr;
|
|
|
|
while (i.next() && i.lineY < clip.getBottom())
|
|
{
|
|
if (i.lineY + i.lineHeight >= clip.getY())
|
|
{
|
|
if (selection.intersects (Range<int> (i.indexInText, i.indexInText + i.atom->numChars)))
|
|
{
|
|
i.drawSelectedText (g, selection, selectedTextColour);
|
|
lastSection = nullptr;
|
|
}
|
|
else
|
|
{
|
|
i.draw (g, lastSection);
|
|
}
|
|
}
|
|
}
|
|
|
|
for (int j = underlinedSections.size(); --j >= 0;)
|
|
{
|
|
const Range<int> underlinedSection = underlinedSections.getReference (j);
|
|
|
|
Iterator i2 (sections, wordWrapWidth, passwordCharacter);
|
|
|
|
while (i2.next() && i2.lineY < clip.getBottom())
|
|
{
|
|
if (i2.lineY + i2.lineHeight >= clip.getY()
|
|
&& underlinedSection.intersects (Range<int> (i2.indexInText, i2.indexInText + i2.atom->numChars)))
|
|
{
|
|
i2.drawUnderline (g, underlinedSection, findColour (textColourId));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void TextEditor::paint (Graphics& g)
|
|
{
|
|
getLookAndFeel().fillTextEditorBackground (g, getWidth(), getHeight(), *this);
|
|
}
|
|
|
|
void TextEditor::paintOverChildren (Graphics& g)
|
|
{
|
|
if (textToShowWhenEmpty.isNotEmpty()
|
|
&& (! hasKeyboardFocus (false))
|
|
&& getTotalNumChars() == 0)
|
|
{
|
|
g.setColour (colourForTextWhenEmpty);
|
|
g.setFont (getFont());
|
|
|
|
if (isMultiLine())
|
|
g.drawText (textToShowWhenEmpty, getLocalBounds(),
|
|
Justification::centred, true);
|
|
else
|
|
g.drawText (textToShowWhenEmpty,
|
|
leftIndent, 0, viewport->getWidth() - leftIndent, getHeight(),
|
|
Justification::centredLeft, true);
|
|
}
|
|
|
|
getLookAndFeel().drawTextEditorOutline (g, getWidth(), getHeight(), *this);
|
|
}
|
|
|
|
//==============================================================================
|
|
void TextEditor::addPopupMenuItems (PopupMenu& m, const MouseEvent*)
|
|
{
|
|
const bool writable = ! isReadOnly();
|
|
|
|
if (passwordCharacter == 0)
|
|
{
|
|
m.addItem (StandardApplicationCommandIDs::cut, TRANS("Cut"), writable);
|
|
m.addItem (StandardApplicationCommandIDs::copy, TRANS("Copy"), ! selection.isEmpty());
|
|
m.addItem (StandardApplicationCommandIDs::paste, TRANS("Paste"), writable);
|
|
}
|
|
|
|
m.addItem (StandardApplicationCommandIDs::del, TRANS("Delete"), writable);
|
|
m.addSeparator();
|
|
m.addItem (StandardApplicationCommandIDs::selectAll, TRANS("Select All"));
|
|
m.addSeparator();
|
|
|
|
if (getUndoManager() != nullptr)
|
|
{
|
|
m.addItem (StandardApplicationCommandIDs::undo, TRANS("Undo"), undoManager.canUndo());
|
|
m.addItem (StandardApplicationCommandIDs::redo, TRANS("Redo"), undoManager.canRedo());
|
|
}
|
|
}
|
|
|
|
void TextEditor::performPopupMenuAction (const int menuItemID)
|
|
{
|
|
switch (menuItemID)
|
|
{
|
|
case StandardApplicationCommandIDs::cut: cutToClipboard(); break;
|
|
case StandardApplicationCommandIDs::copy: copyToClipboard(); break;
|
|
case StandardApplicationCommandIDs::paste: pasteFromClipboard(); break;
|
|
case StandardApplicationCommandIDs::del: cut(); break;
|
|
case StandardApplicationCommandIDs::selectAll: selectAll(); break;
|
|
case StandardApplicationCommandIDs::undo: undo(); break;
|
|
case StandardApplicationCommandIDs::redo: redo(); break;
|
|
default: break;
|
|
}
|
|
}
|
|
|
|
static void textEditorMenuCallback (int menuResult, TextEditor* editor)
|
|
{
|
|
if (editor != nullptr && menuResult != 0)
|
|
editor->performPopupMenuAction (menuResult);
|
|
}
|
|
|
|
//==============================================================================
|
|
void TextEditor::mouseDown (const MouseEvent& e)
|
|
{
|
|
beginDragAutoRepeat (100);
|
|
newTransaction();
|
|
|
|
if (wasFocused || ! selectAllTextWhenFocused)
|
|
{
|
|
if (! (popupMenuEnabled && e.mods.isPopupMenu()))
|
|
{
|
|
moveCaretTo (getTextIndexAt (e.x, e.y),
|
|
e.mods.isShiftDown());
|
|
}
|
|
else
|
|
{
|
|
PopupMenu m;
|
|
m.setLookAndFeel (&getLookAndFeel());
|
|
addPopupMenuItems (m, &e);
|
|
|
|
m.showMenuAsync (PopupMenu::Options(),
|
|
ModalCallbackFunction::forComponent (textEditorMenuCallback, this));
|
|
}
|
|
}
|
|
}
|
|
|
|
void TextEditor::mouseDrag (const MouseEvent& e)
|
|
{
|
|
if (wasFocused || ! selectAllTextWhenFocused)
|
|
if (! (popupMenuEnabled && e.mods.isPopupMenu()))
|
|
moveCaretTo (getTextIndexAt (e.x, e.y), true);
|
|
}
|
|
|
|
void TextEditor::mouseUp (const MouseEvent& e)
|
|
{
|
|
newTransaction();
|
|
textHolder->restartTimer();
|
|
|
|
if (wasFocused || ! selectAllTextWhenFocused)
|
|
if (e.mouseWasClicked() && ! (popupMenuEnabled && e.mods.isPopupMenu()))
|
|
moveCaret (getTextIndexAt (e.x, e.y));
|
|
|
|
wasFocused = true;
|
|
}
|
|
|
|
void TextEditor::mouseDoubleClick (const MouseEvent& e)
|
|
{
|
|
int tokenEnd = getTextIndexAt (e.x, e.y);
|
|
int tokenStart = 0;
|
|
|
|
if (e.getNumberOfClicks() > 3)
|
|
{
|
|
tokenEnd = getTotalNumChars();
|
|
}
|
|
else
|
|
{
|
|
const String t (getText());
|
|
const int totalLength = getTotalNumChars();
|
|
|
|
while (tokenEnd < totalLength)
|
|
{
|
|
// (note the slight bodge here - it's because iswalnum only checks for alphabetic chars in the current locale)
|
|
const juce_wchar c = t [tokenEnd];
|
|
if (CharacterFunctions::isLetterOrDigit (c) || c > 128)
|
|
++tokenEnd;
|
|
else
|
|
break;
|
|
}
|
|
|
|
tokenStart = tokenEnd;
|
|
|
|
while (tokenStart > 0)
|
|
{
|
|
// (note the slight bodge here - it's because iswalnum only checks for alphabetic chars in the current locale)
|
|
const juce_wchar c = t [tokenStart - 1];
|
|
if (CharacterFunctions::isLetterOrDigit (c) || c > 128)
|
|
--tokenStart;
|
|
else
|
|
break;
|
|
}
|
|
|
|
if (e.getNumberOfClicks() > 2)
|
|
{
|
|
while (tokenEnd < totalLength)
|
|
{
|
|
const juce_wchar c = t [tokenEnd];
|
|
if (c != '\r' && c != '\n')
|
|
++tokenEnd;
|
|
else
|
|
break;
|
|
}
|
|
|
|
while (tokenStart > 0)
|
|
{
|
|
const juce_wchar c = t [tokenStart - 1];
|
|
if (c != '\r' && c != '\n')
|
|
--tokenStart;
|
|
else
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
moveCaretTo (tokenEnd, false);
|
|
moveCaretTo (tokenStart, true);
|
|
}
|
|
|
|
void TextEditor::mouseWheelMove (const MouseEvent& e, const MouseWheelDetails& wheel)
|
|
{
|
|
if (! viewport->useMouseWheelMoveIfNeeded (e, wheel))
|
|
Component::mouseWheelMove (e, wheel);
|
|
}
|
|
|
|
//==============================================================================
|
|
bool TextEditor::moveCaretWithTransaction (const int newPos, const bool selecting)
|
|
{
|
|
newTransaction();
|
|
moveCaretTo (newPos, selecting);
|
|
return true;
|
|
}
|
|
|
|
bool TextEditor::moveCaretLeft (bool moveInWholeWordSteps, bool selecting)
|
|
{
|
|
int pos = getCaretPosition();
|
|
|
|
if (moveInWholeWordSteps)
|
|
pos = findWordBreakBefore (pos);
|
|
else
|
|
--pos;
|
|
|
|
return moveCaretWithTransaction (pos, selecting);
|
|
}
|
|
|
|
bool TextEditor::moveCaretRight (bool moveInWholeWordSteps, bool selecting)
|
|
{
|
|
int pos = getCaretPosition();
|
|
|
|
if (moveInWholeWordSteps)
|
|
pos = findWordBreakAfter (pos);
|
|
else
|
|
++pos;
|
|
|
|
return moveCaretWithTransaction (pos, selecting);
|
|
}
|
|
|
|
bool TextEditor::moveCaretUp (bool selecting)
|
|
{
|
|
if (! isMultiLine())
|
|
return moveCaretToStartOfLine (selecting);
|
|
|
|
const Rectangle<float> caretPos (getCaretRectangle().toFloat());
|
|
return moveCaretWithTransaction (indexAtPosition (caretPos.getX(), caretPos.getY() - 1.0f), selecting);
|
|
}
|
|
|
|
bool TextEditor::moveCaretDown (bool selecting)
|
|
{
|
|
if (! isMultiLine())
|
|
return moveCaretToEndOfLine (selecting);
|
|
|
|
const Rectangle<float> caretPos (getCaretRectangle().toFloat());
|
|
return moveCaretWithTransaction (indexAtPosition (caretPos.getX(), caretPos.getBottom() + 1.0f), selecting);
|
|
}
|
|
|
|
bool TextEditor::pageUp (bool selecting)
|
|
{
|
|
if (! isMultiLine())
|
|
return moveCaretToStartOfLine (selecting);
|
|
|
|
const Rectangle<float> caretPos (getCaretRectangle().toFloat());
|
|
return moveCaretWithTransaction (indexAtPosition (caretPos.getX(), caretPos.getY() - viewport->getViewHeight()), selecting);
|
|
}
|
|
|
|
bool TextEditor::pageDown (bool selecting)
|
|
{
|
|
if (! isMultiLine())
|
|
return moveCaretToEndOfLine (selecting);
|
|
|
|
const Rectangle<float> caretPos (getCaretRectangle().toFloat());
|
|
return moveCaretWithTransaction (indexAtPosition (caretPos.getX(), caretPos.getBottom() + viewport->getViewHeight()), selecting);
|
|
}
|
|
|
|
void TextEditor::scrollByLines (int deltaLines)
|
|
{
|
|
if (ScrollBar* scrollbar = viewport->getVerticalScrollBar())
|
|
scrollbar->moveScrollbarInSteps (deltaLines);
|
|
}
|
|
|
|
bool TextEditor::scrollDown()
|
|
{
|
|
scrollByLines (-1);
|
|
return true;
|
|
}
|
|
|
|
bool TextEditor::scrollUp()
|
|
{
|
|
scrollByLines (1);
|
|
return true;
|
|
}
|
|
|
|
bool TextEditor::moveCaretToTop (bool selecting)
|
|
{
|
|
return moveCaretWithTransaction (0, selecting);
|
|
}
|
|
|
|
bool TextEditor::moveCaretToStartOfLine (bool selecting)
|
|
{
|
|
const Rectangle<float> caretPos (getCaretRectangle().toFloat());
|
|
return moveCaretWithTransaction (indexAtPosition (0.0f, caretPos.getY()), selecting);
|
|
}
|
|
|
|
bool TextEditor::moveCaretToEnd (bool selecting)
|
|
{
|
|
return moveCaretWithTransaction (getTotalNumChars(), selecting);
|
|
}
|
|
|
|
bool TextEditor::moveCaretToEndOfLine (bool selecting)
|
|
{
|
|
const Rectangle<float> caretPos (getCaretRectangle().toFloat());
|
|
return moveCaretWithTransaction (indexAtPosition ((float) textHolder->getWidth(), caretPos.getY()), selecting);
|
|
}
|
|
|
|
bool TextEditor::deleteBackwards (bool moveInWholeWordSteps)
|
|
{
|
|
if (moveInWholeWordSteps)
|
|
moveCaretTo (findWordBreakBefore (getCaretPosition()), true);
|
|
else if (selection.isEmpty() && selection.getStart() > 0)
|
|
selection.setStart (selection.getEnd() - 1);
|
|
|
|
cut();
|
|
return true;
|
|
}
|
|
|
|
bool TextEditor::deleteForwards (bool /*moveInWholeWordSteps*/)
|
|
{
|
|
if (selection.isEmpty() && selection.getStart() < getTotalNumChars())
|
|
selection.setEnd (selection.getStart() + 1);
|
|
|
|
cut();
|
|
return true;
|
|
}
|
|
|
|
bool TextEditor::copyToClipboard()
|
|
{
|
|
newTransaction();
|
|
copy();
|
|
return true;
|
|
}
|
|
|
|
bool TextEditor::cutToClipboard()
|
|
{
|
|
newTransaction();
|
|
copy();
|
|
cut();
|
|
return true;
|
|
}
|
|
|
|
bool TextEditor::pasteFromClipboard()
|
|
{
|
|
newTransaction();
|
|
paste();
|
|
return true;
|
|
}
|
|
|
|
bool TextEditor::selectAll()
|
|
{
|
|
newTransaction();
|
|
moveCaretTo (getTotalNumChars(), false);
|
|
moveCaretTo (0, true);
|
|
return true;
|
|
}
|
|
|
|
//==============================================================================
|
|
void TextEditor::setEscapeAndReturnKeysConsumed (bool shouldBeConsumed) noexcept
|
|
{
|
|
consumeEscAndReturnKeys = shouldBeConsumed;
|
|
}
|
|
|
|
bool TextEditor::keyPressed (const KeyPress& key)
|
|
{
|
|
if (isReadOnly() && key != KeyPress ('c', ModifierKeys::commandModifier, 0))
|
|
return false;
|
|
|
|
if (! TextEditorKeyMapper<TextEditor>::invokeKeyFunction (*this, key))
|
|
{
|
|
if (key == KeyPress::returnKey)
|
|
{
|
|
newTransaction();
|
|
|
|
if (returnKeyStartsNewLine)
|
|
insertTextAtCaret ("\n");
|
|
else
|
|
{
|
|
returnPressed();
|
|
return consumeEscAndReturnKeys;
|
|
}
|
|
}
|
|
else if (key.isKeyCode (KeyPress::escapeKey))
|
|
{
|
|
newTransaction();
|
|
moveCaretTo (getCaretPosition(), false);
|
|
escapePressed();
|
|
return consumeEscAndReturnKeys;
|
|
}
|
|
else if (key.getTextCharacter() >= ' '
|
|
|| (tabKeyUsed && (key.getTextCharacter() == '\t')))
|
|
{
|
|
insertTextAtCaret (String::charToString (key.getTextCharacter()));
|
|
|
|
lastTransactionTime = Time::getApproximateMillisecondCounter();
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool TextEditor::keyStateChanged (const bool isKeyDown)
|
|
{
|
|
if (! isKeyDown)
|
|
return false;
|
|
|
|
#if JUCE_WINDOWS
|
|
if (KeyPress (KeyPress::F4Key, ModifierKeys::altModifier, 0).isCurrentlyDown())
|
|
return false; // We need to explicitly allow alt-F4 to pass through on Windows
|
|
#endif
|
|
|
|
if ((! consumeEscAndReturnKeys)
|
|
&& (KeyPress (KeyPress::escapeKey).isCurrentlyDown()
|
|
|| KeyPress (KeyPress::returnKey).isCurrentlyDown()))
|
|
return false;
|
|
|
|
// (overridden to avoid forwarding key events to the parent)
|
|
return ! ModifierKeys::getCurrentModifiers().isCommandDown();
|
|
}
|
|
|
|
//==============================================================================
|
|
void TextEditor::focusGained (FocusChangeType)
|
|
{
|
|
newTransaction();
|
|
|
|
if (selectAllTextWhenFocused)
|
|
{
|
|
moveCaretTo (0, false);
|
|
moveCaretTo (getTotalNumChars(), true);
|
|
}
|
|
|
|
repaint();
|
|
updateCaretPosition();
|
|
|
|
if (ComponentPeer* const peer = getPeer())
|
|
if (! isReadOnly())
|
|
peer->textInputRequired (peer->globalToLocal (getScreenPosition()));
|
|
}
|
|
|
|
void TextEditor::focusLost (FocusChangeType)
|
|
{
|
|
newTransaction();
|
|
|
|
wasFocused = false;
|
|
textHolder->stopTimer();
|
|
|
|
underlinedSections.clear();
|
|
|
|
if (ComponentPeer* const peer = getPeer())
|
|
peer->dismissPendingTextInput();
|
|
|
|
updateCaretPosition();
|
|
|
|
postCommandMessage (TextEditorDefs::focusLossMessageId);
|
|
repaint();
|
|
}
|
|
|
|
//==============================================================================
|
|
void TextEditor::resized()
|
|
{
|
|
viewport->setBoundsInset (borderSize);
|
|
viewport->setSingleStepSizes (16, roundToInt (currentFont.getHeight()));
|
|
|
|
updateTextHolderSize();
|
|
|
|
if (isMultiLine())
|
|
updateCaretPosition();
|
|
else
|
|
scrollToMakeSureCursorIsVisible();
|
|
}
|
|
|
|
void TextEditor::handleCommandMessage (const int commandId)
|
|
{
|
|
Component::BailOutChecker checker (this);
|
|
|
|
switch (commandId)
|
|
{
|
|
case TextEditorDefs::textChangeMessageId:
|
|
listeners.callChecked (checker, &TextEditorListener::textEditorTextChanged, (TextEditor&) *this);
|
|
break;
|
|
|
|
case TextEditorDefs::returnKeyMessageId:
|
|
listeners.callChecked (checker, &TextEditorListener::textEditorReturnKeyPressed, (TextEditor&) *this);
|
|
break;
|
|
|
|
case TextEditorDefs::escapeKeyMessageId:
|
|
listeners.callChecked (checker, &TextEditorListener::textEditorEscapeKeyPressed, (TextEditor&) *this);
|
|
break;
|
|
|
|
case TextEditorDefs::focusLossMessageId:
|
|
updateValueFromText();
|
|
listeners.callChecked (checker, &TextEditorListener::textEditorFocusLost, (TextEditor&) *this);
|
|
break;
|
|
|
|
default:
|
|
jassertfalse;
|
|
break;
|
|
}
|
|
}
|
|
|
|
void TextEditor::enablementChanged()
|
|
{
|
|
repaint();
|
|
}
|
|
|
|
void TextEditor::setTemporaryUnderlining (const Array <Range<int> >& newUnderlinedSections)
|
|
{
|
|
underlinedSections = newUnderlinedSections;
|
|
repaint();
|
|
}
|
|
|
|
//==============================================================================
|
|
UndoManager* TextEditor::getUndoManager() noexcept
|
|
{
|
|
return readOnly ? nullptr : &undoManager;
|
|
}
|
|
|
|
void TextEditor::clearInternal (UndoManager* const um)
|
|
{
|
|
remove (Range<int> (0, getTotalNumChars()), um, caretPosition);
|
|
}
|
|
|
|
void TextEditor::insert (const String& text,
|
|
const int insertIndex,
|
|
const Font& font,
|
|
const Colour colour,
|
|
UndoManager* const um,
|
|
const int caretPositionToMoveTo)
|
|
{
|
|
if (text.isNotEmpty())
|
|
{
|
|
if (um != nullptr)
|
|
{
|
|
if (um->getNumActionsInCurrentTransaction() > TextEditorDefs::maxActionsPerTransaction)
|
|
newTransaction();
|
|
|
|
um->perform (new InsertAction (*this, text, insertIndex, font, colour,
|
|
caretPosition, caretPositionToMoveTo));
|
|
}
|
|
else
|
|
{
|
|
repaintText (Range<int> (insertIndex, getTotalNumChars())); // must do this before and after changing the data, in case
|
|
// a line gets moved due to word wrap
|
|
|
|
int index = 0;
|
|
int nextIndex = 0;
|
|
|
|
for (int i = 0; i < sections.size(); ++i)
|
|
{
|
|
nextIndex = index + sections.getUnchecked (i)->getTotalLength();
|
|
|
|
if (insertIndex == index)
|
|
{
|
|
sections.insert (i, new UniformTextSection (text, font, colour, passwordCharacter));
|
|
break;
|
|
}
|
|
else if (insertIndex > index && insertIndex < nextIndex)
|
|
{
|
|
splitSection (i, insertIndex - index);
|
|
sections.insert (i + 1, new UniformTextSection (text, font, colour, passwordCharacter));
|
|
break;
|
|
}
|
|
|
|
index = nextIndex;
|
|
}
|
|
|
|
if (nextIndex == insertIndex)
|
|
sections.add (new UniformTextSection (text, font, colour, passwordCharacter));
|
|
|
|
coalesceSimilarSections();
|
|
totalNumChars = -1;
|
|
valueTextNeedsUpdating = true;
|
|
|
|
updateTextHolderSize();
|
|
moveCaretTo (caretPositionToMoveTo, false);
|
|
|
|
repaintText (Range<int> (insertIndex, getTotalNumChars()));
|
|
}
|
|
}
|
|
}
|
|
|
|
void TextEditor::reinsert (const int insertIndex,
|
|
const Array <UniformTextSection*>& sectionsToInsert)
|
|
{
|
|
int index = 0;
|
|
int nextIndex = 0;
|
|
|
|
for (int i = 0; i < sections.size(); ++i)
|
|
{
|
|
nextIndex = index + sections.getUnchecked (i)->getTotalLength();
|
|
|
|
if (insertIndex == index)
|
|
{
|
|
for (int j = sectionsToInsert.size(); --j >= 0;)
|
|
sections.insert (i, new UniformTextSection (*sectionsToInsert.getUnchecked(j)));
|
|
|
|
break;
|
|
}
|
|
else if (insertIndex > index && insertIndex < nextIndex)
|
|
{
|
|
splitSection (i, insertIndex - index);
|
|
|
|
for (int j = sectionsToInsert.size(); --j >= 0;)
|
|
sections.insert (i + 1, new UniformTextSection (*sectionsToInsert.getUnchecked(j)));
|
|
|
|
break;
|
|
}
|
|
|
|
index = nextIndex;
|
|
}
|
|
|
|
if (nextIndex == insertIndex)
|
|
{
|
|
for (int j = 0; j < sectionsToInsert.size(); ++j)
|
|
sections.add (new UniformTextSection (*sectionsToInsert.getUnchecked(j)));
|
|
}
|
|
|
|
coalesceSimilarSections();
|
|
totalNumChars = -1;
|
|
valueTextNeedsUpdating = true;
|
|
}
|
|
|
|
void TextEditor::remove (Range<int> range,
|
|
UndoManager* const um,
|
|
const int caretPositionToMoveTo)
|
|
{
|
|
if (! range.isEmpty())
|
|
{
|
|
int index = 0;
|
|
|
|
for (int i = 0; i < sections.size(); ++i)
|
|
{
|
|
const int nextIndex = index + sections.getUnchecked(i)->getTotalLength();
|
|
|
|
if (range.getStart() > index && range.getStart() < nextIndex)
|
|
{
|
|
splitSection (i, range.getStart() - index);
|
|
--i;
|
|
}
|
|
else if (range.getEnd() > index && range.getEnd() < nextIndex)
|
|
{
|
|
splitSection (i, range.getEnd() - index);
|
|
--i;
|
|
}
|
|
else
|
|
{
|
|
index = nextIndex;
|
|
|
|
if (index > range.getEnd())
|
|
break;
|
|
}
|
|
}
|
|
|
|
index = 0;
|
|
|
|
if (um != nullptr)
|
|
{
|
|
Array <UniformTextSection*> removedSections;
|
|
|
|
for (int i = 0; i < sections.size(); ++i)
|
|
{
|
|
if (range.getEnd() <= range.getStart())
|
|
break;
|
|
|
|
UniformTextSection* const section = sections.getUnchecked (i);
|
|
|
|
const int nextIndex = index + section->getTotalLength();
|
|
|
|
if (range.getStart() <= index && range.getEnd() >= nextIndex)
|
|
removedSections.add (new UniformTextSection (*section));
|
|
|
|
index = nextIndex;
|
|
}
|
|
|
|
if (um->getNumActionsInCurrentTransaction() > TextEditorDefs::maxActionsPerTransaction)
|
|
newTransaction();
|
|
|
|
um->perform (new RemoveAction (*this, range, caretPosition,
|
|
caretPositionToMoveTo, removedSections));
|
|
}
|
|
else
|
|
{
|
|
Range<int> remainingRange (range);
|
|
|
|
for (int i = 0; i < sections.size(); ++i)
|
|
{
|
|
UniformTextSection* const section = sections.getUnchecked (i);
|
|
|
|
const int nextIndex = index + section->getTotalLength();
|
|
|
|
if (remainingRange.getStart() <= index && remainingRange.getEnd() >= nextIndex)
|
|
{
|
|
sections.remove(i);
|
|
section->clear();
|
|
delete section;
|
|
|
|
remainingRange.setEnd (remainingRange.getEnd() - (nextIndex - index));
|
|
if (remainingRange.isEmpty())
|
|
break;
|
|
|
|
--i;
|
|
}
|
|
else
|
|
{
|
|
index = nextIndex;
|
|
}
|
|
}
|
|
|
|
coalesceSimilarSections();
|
|
totalNumChars = -1;
|
|
valueTextNeedsUpdating = true;
|
|
|
|
moveCaretTo (caretPositionToMoveTo, false);
|
|
|
|
repaintText (Range<int> (range.getStart(), getTotalNumChars()));
|
|
}
|
|
}
|
|
}
|
|
|
|
//==============================================================================
|
|
String TextEditor::getText() const
|
|
{
|
|
MemoryOutputStream mo;
|
|
mo.preallocate ((size_t) getTotalNumChars());
|
|
|
|
for (int i = 0; i < sections.size(); ++i)
|
|
sections.getUnchecked (i)->appendAllText (mo);
|
|
|
|
return mo.toUTF8();
|
|
}
|
|
|
|
String TextEditor::getTextInRange (const Range<int>& range) const
|
|
{
|
|
if (range.isEmpty())
|
|
return String::empty;
|
|
|
|
MemoryOutputStream mo;
|
|
mo.preallocate ((size_t) jmin (getTotalNumChars(), range.getLength()));
|
|
|
|
int index = 0;
|
|
|
|
for (int i = 0; i < sections.size(); ++i)
|
|
{
|
|
const UniformTextSection* const s = sections.getUnchecked (i);
|
|
const int nextIndex = index + s->getTotalLength();
|
|
|
|
if (range.getStart() < nextIndex)
|
|
{
|
|
if (range.getEnd() <= index)
|
|
break;
|
|
|
|
s->appendSubstring (mo, range - index);
|
|
}
|
|
|
|
index = nextIndex;
|
|
}
|
|
|
|
return mo.toUTF8();
|
|
}
|
|
|
|
String TextEditor::getHighlightedText() const
|
|
{
|
|
return getTextInRange (selection);
|
|
}
|
|
|
|
int TextEditor::getTotalNumChars() const
|
|
{
|
|
if (totalNumChars < 0)
|
|
{
|
|
totalNumChars = 0;
|
|
|
|
for (int i = sections.size(); --i >= 0;)
|
|
totalNumChars += sections.getUnchecked (i)->getTotalLength();
|
|
}
|
|
|
|
return totalNumChars;
|
|
}
|
|
|
|
bool TextEditor::isEmpty() const
|
|
{
|
|
return getTotalNumChars() == 0;
|
|
}
|
|
|
|
void TextEditor::getCharPosition (const int index, float& cx, float& cy, float& lineHeight) const
|
|
{
|
|
const float wordWrapWidth = getWordWrapWidth();
|
|
|
|
if (wordWrapWidth > 0 && sections.size() > 0)
|
|
{
|
|
Iterator i (sections, wordWrapWidth, passwordCharacter);
|
|
|
|
i.getCharPosition (index, cx, cy, lineHeight);
|
|
}
|
|
else
|
|
{
|
|
cx = cy = 0;
|
|
lineHeight = currentFont.getHeight();
|
|
}
|
|
}
|
|
|
|
int TextEditor::indexAtPosition (const float x, const float y)
|
|
{
|
|
const float wordWrapWidth = getWordWrapWidth();
|
|
|
|
if (wordWrapWidth > 0)
|
|
{
|
|
Iterator i (sections, wordWrapWidth, passwordCharacter);
|
|
|
|
while (i.next())
|
|
{
|
|
if (i.lineY + i.lineHeight > y)
|
|
{
|
|
if (i.lineY > y)
|
|
return jmax (0, i.indexInText - 1);
|
|
|
|
if (i.atomX >= x)
|
|
return i.indexInText;
|
|
|
|
if (x < i.atomRight)
|
|
return i.xToIndex (x);
|
|
}
|
|
}
|
|
}
|
|
|
|
return getTotalNumChars();
|
|
}
|
|
|
|
//==============================================================================
|
|
int TextEditor::findWordBreakAfter (const int position) const
|
|
{
|
|
const String t (getTextInRange (Range<int> (position, position + 512)));
|
|
const int totalLength = t.length();
|
|
int i = 0;
|
|
|
|
while (i < totalLength && CharacterFunctions::isWhitespace (t[i]))
|
|
++i;
|
|
|
|
const int type = TextEditorDefs::getCharacterCategory (t[i]);
|
|
|
|
while (i < totalLength && type == TextEditorDefs::getCharacterCategory (t[i]))
|
|
++i;
|
|
|
|
while (i < totalLength && CharacterFunctions::isWhitespace (t[i]))
|
|
++i;
|
|
|
|
return position + i;
|
|
}
|
|
|
|
int TextEditor::findWordBreakBefore (const int position) const
|
|
{
|
|
if (position <= 0)
|
|
return 0;
|
|
|
|
const int startOfBuffer = jmax (0, position - 512);
|
|
const String t (getTextInRange (Range<int> (startOfBuffer, position)));
|
|
|
|
int i = position - startOfBuffer;
|
|
|
|
while (i > 0 && CharacterFunctions::isWhitespace (t [i - 1]))
|
|
--i;
|
|
|
|
if (i > 0)
|
|
{
|
|
const int type = TextEditorDefs::getCharacterCategory (t [i - 1]);
|
|
|
|
while (i > 0 && type == TextEditorDefs::getCharacterCategory (t [i - 1]))
|
|
--i;
|
|
}
|
|
|
|
jassert (startOfBuffer + i >= 0);
|
|
return startOfBuffer + i;
|
|
}
|
|
|
|
|
|
//==============================================================================
|
|
void TextEditor::splitSection (const int sectionIndex,
|
|
const int charToSplitAt)
|
|
{
|
|
jassert (sections[sectionIndex] != nullptr);
|
|
|
|
sections.insert (sectionIndex + 1,
|
|
sections.getUnchecked (sectionIndex)->split (charToSplitAt, passwordCharacter));
|
|
}
|
|
|
|
void TextEditor::coalesceSimilarSections()
|
|
{
|
|
for (int i = 0; i < sections.size() - 1; ++i)
|
|
{
|
|
UniformTextSection* const s1 = sections.getUnchecked (i);
|
|
UniformTextSection* const s2 = sections.getUnchecked (i + 1);
|
|
|
|
if (s1->font == s2->font
|
|
&& s1->colour == s2->colour)
|
|
{
|
|
s1->append (*s2, passwordCharacter);
|
|
sections.remove (i + 1);
|
|
delete s2;
|
|
--i;
|
|
}
|
|
}
|
|
}
|
|
|