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713 lines
22 KiB
713 lines
22 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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static juce_wchar getDefaultPasswordChar() noexcept
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{
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#if JUCE_LINUX
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return 0x2022;
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#else
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return 0x25cf;
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#endif
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}
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//==============================================================================
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AlertWindow::AlertWindow (const String& title,
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const String& message,
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AlertIconType iconType,
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Component* comp)
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: TopLevelWindow (title, true),
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alertIconType (iconType),
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associatedComponent (comp),
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escapeKeyCancels (true)
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{
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setAlwaysOnTop (juce_areThereAnyAlwaysOnTopWindows());
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if (message.isEmpty())
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text = " "; // to force an update if the message is empty
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setMessage (message);
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AlertWindow::lookAndFeelChanged();
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constrainer.setMinimumOnscreenAmounts (0x10000, 0x10000, 0x10000, 0x10000);
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}
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AlertWindow::~AlertWindow()
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{
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removeAllChildren();
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}
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void AlertWindow::userTriedToCloseWindow()
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{
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if (escapeKeyCancels || buttons.size() > 0)
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exitModalState (0);
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}
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//==============================================================================
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void AlertWindow::setMessage (const String& message)
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{
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const String newMessage (message.substring (0, 2048));
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if (text != newMessage)
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{
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text = newMessage;
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updateLayout (true);
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repaint();
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}
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}
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//==============================================================================
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void AlertWindow::buttonClicked (Button* button)
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{
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if (Component* parent = button->getParentComponent())
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parent->exitModalState (button->getCommandID());
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}
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//==============================================================================
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void AlertWindow::addButton (const String& name,
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const int returnValue,
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const KeyPress& shortcutKey1,
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const KeyPress& shortcutKey2)
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{
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TextButton* const b = new TextButton (name, String::empty);
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buttons.add (b);
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b->setWantsKeyboardFocus (true);
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b->setMouseClickGrabsKeyboardFocus (false);
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b->setCommandToTrigger (0, returnValue, false);
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b->addShortcut (shortcutKey1);
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b->addShortcut (shortcutKey2);
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b->addListener (this);
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b->changeWidthToFitText (getLookAndFeel().getAlertWindowButtonHeight());
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addAndMakeVisible (b, 0);
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updateLayout (false);
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}
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int AlertWindow::getNumButtons() const
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{
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return buttons.size();
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}
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void AlertWindow::triggerButtonClick (const String& buttonName)
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{
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for (int i = buttons.size(); --i >= 0;)
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{
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TextButton* const b = buttons.getUnchecked(i);
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if (buttonName == b->getName())
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{
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b->triggerClick();
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break;
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}
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}
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}
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void AlertWindow::setEscapeKeyCancels (bool shouldEscapeKeyCancel)
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{
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escapeKeyCancels = shouldEscapeKeyCancel;
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}
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//==============================================================================
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void AlertWindow::addTextEditor (const String& name,
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const String& initialContents,
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const String& onScreenLabel,
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const bool isPasswordBox)
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{
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TextEditor* ed = new TextEditor (name, isPasswordBox ? getDefaultPasswordChar() : 0);
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ed->setSelectAllWhenFocused (true);
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ed->setEscapeAndReturnKeysConsumed (false);
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textBoxes.add (ed);
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allComps.add (ed);
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ed->setColour (TextEditor::outlineColourId, findColour (ComboBox::outlineColourId));
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ed->setFont (getLookAndFeel().getAlertWindowMessageFont());
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ed->setText (initialContents);
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ed->setCaretPosition (initialContents.length());
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addAndMakeVisible (ed);
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textboxNames.add (onScreenLabel);
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updateLayout (false);
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}
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TextEditor* AlertWindow::getTextEditor (const String& nameOfTextEditor) const
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{
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for (int i = textBoxes.size(); --i >= 0;)
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if (textBoxes.getUnchecked(i)->getName() == nameOfTextEditor)
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return textBoxes.getUnchecked(i);
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return nullptr;
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}
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String AlertWindow::getTextEditorContents (const String& nameOfTextEditor) const
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{
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if (TextEditor* const t = getTextEditor (nameOfTextEditor))
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return t->getText();
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return String::empty;
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}
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//==============================================================================
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void AlertWindow::addComboBox (const String& name,
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const StringArray& items,
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const String& onScreenLabel)
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{
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ComboBox* const cb = new ComboBox (name);
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comboBoxes.add (cb);
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allComps.add (cb);
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cb->addItemList (items, 1);
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addAndMakeVisible (cb);
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cb->setSelectedItemIndex (0);
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comboBoxNames.add (onScreenLabel);
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updateLayout (false);
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}
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ComboBox* AlertWindow::getComboBoxComponent (const String& nameOfList) const
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{
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for (int i = comboBoxes.size(); --i >= 0;)
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if (comboBoxes.getUnchecked(i)->getName() == nameOfList)
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return comboBoxes.getUnchecked(i);
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return nullptr;
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}
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//==============================================================================
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class AlertTextComp : public TextEditor
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{
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public:
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AlertTextComp (const String& message,
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const Font& font)
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{
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setReadOnly (true);
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setMultiLine (true, true);
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setCaretVisible (false);
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setScrollbarsShown (true);
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lookAndFeelChanged();
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setWantsKeyboardFocus (false);
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setFont (font);
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setText (message, false);
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bestWidth = 2 * (int) std::sqrt (font.getHeight() * font.getStringWidth (message));
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setColour (TextEditor::backgroundColourId, Colours::transparentBlack);
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setColour (TextEditor::outlineColourId, Colours::transparentBlack);
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setColour (TextEditor::shadowColourId, Colours::transparentBlack);
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}
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int getPreferredWidth() const noexcept { return bestWidth; }
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void updateLayout (const int width)
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{
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AttributedString s;
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s.setJustification (Justification::topLeft);
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s.append (getText(), getFont());
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TextLayout text;
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text.createLayoutWithBalancedLineLengths (s, width - 8.0f);
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setSize (width, jmin (width, (int) (text.getHeight() + getFont().getHeight())));
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}
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private:
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int bestWidth;
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JUCE_DECLARE_NON_COPYABLE (AlertTextComp)
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};
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void AlertWindow::addTextBlock (const String& textBlock)
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{
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AlertTextComp* const c = new AlertTextComp (textBlock, getLookAndFeel().getAlertWindowMessageFont());
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textBlocks.add (c);
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allComps.add (c);
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addAndMakeVisible (c);
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updateLayout (false);
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}
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//==============================================================================
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void AlertWindow::addProgressBarComponent (double& progressValue)
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{
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ProgressBar* const pb = new ProgressBar (progressValue);
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progressBars.add (pb);
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allComps.add (pb);
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addAndMakeVisible (pb);
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updateLayout (false);
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}
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//==============================================================================
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void AlertWindow::addCustomComponent (Component* const component)
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{
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customComps.add (component);
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allComps.add (component);
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addAndMakeVisible (component);
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updateLayout (false);
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}
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int AlertWindow::getNumCustomComponents() const
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{
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return customComps.size();
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}
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Component* AlertWindow::getCustomComponent (const int index) const
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{
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return customComps [index];
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}
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Component* AlertWindow::removeCustomComponent (const int index)
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{
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Component* const c = getCustomComponent (index);
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if (c != nullptr)
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{
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customComps.removeFirstMatchingValue (c);
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allComps.removeFirstMatchingValue (c);
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removeChildComponent (c);
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updateLayout (false);
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}
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return c;
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}
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//==============================================================================
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void AlertWindow::paint (Graphics& g)
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{
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getLookAndFeel().drawAlertBox (g, *this, textArea, textLayout);
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g.setColour (findColour (textColourId));
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g.setFont (getLookAndFeel().getAlertWindowFont());
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for (int i = textBoxes.size(); --i >= 0;)
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{
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const TextEditor* const te = textBoxes.getUnchecked(i);
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g.drawFittedText (textboxNames[i],
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te->getX(), te->getY() - 14,
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te->getWidth(), 14,
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Justification::centredLeft, 1);
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}
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for (int i = comboBoxNames.size(); --i >= 0;)
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{
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const ComboBox* const cb = comboBoxes.getUnchecked(i);
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g.drawFittedText (comboBoxNames[i],
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cb->getX(), cb->getY() - 14,
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cb->getWidth(), 14,
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Justification::centredLeft, 1);
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}
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for (int i = customComps.size(); --i >= 0;)
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{
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const Component* const c = customComps.getUnchecked(i);
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g.drawFittedText (c->getName(),
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c->getX(), c->getY() - 14,
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c->getWidth(), 14,
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Justification::centredLeft, 1);
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}
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}
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void AlertWindow::updateLayout (const bool onlyIncreaseSize)
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{
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const int titleH = 24;
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const int iconWidth = 80;
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const Font font (getLookAndFeel().getAlertWindowMessageFont());
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const int wid = jmax (font.getStringWidth (text),
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font.getStringWidth (getName()));
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const int sw = (int) std::sqrt (font.getHeight() * wid);
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int w = jmin (300 + sw * 2, (int) (getParentWidth() * 0.7f));
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const int edgeGap = 10;
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const int labelHeight = 18;
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int iconSpace = 0;
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AttributedString attributedText;
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attributedText.append (getName(), font.withHeight (font.getHeight() * 1.1f).boldened());
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if (text.isNotEmpty())
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attributedText.append ("\n\n" + text, font);
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attributedText.setColour (findColour (textColourId));
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if (alertIconType == NoIcon)
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{
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attributedText.setJustification (Justification::centredTop);
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textLayout.createLayoutWithBalancedLineLengths (attributedText, (float) w);
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}
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else
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{
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attributedText.setJustification (Justification::topLeft);
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textLayout.createLayoutWithBalancedLineLengths (attributedText, (float) w);
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iconSpace = iconWidth;
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}
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w = jmax (350, (int) textLayout.getWidth() + iconSpace + edgeGap * 4);
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w = jmin (w, (int) (getParentWidth() * 0.7f));
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const int textLayoutH = (int) textLayout.getHeight();
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const int textBottom = 16 + titleH + textLayoutH;
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int h = textBottom;
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int buttonW = 40;
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for (int i = 0; i < buttons.size(); ++i)
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buttonW += 16 + buttons.getUnchecked(i)->getWidth();
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w = jmax (buttonW, w);
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h += (textBoxes.size() + comboBoxes.size() + progressBars.size()) * 50;
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if (buttons.size() > 0)
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h += 20 + buttons.getUnchecked(0)->getHeight();
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for (int i = customComps.size(); --i >= 0;)
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{
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Component* c = customComps.getUnchecked(i);
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w = jmax (w, (c->getWidth() * 100) / 80);
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h += 10 + c->getHeight();
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if (c->getName().isNotEmpty())
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h += labelHeight;
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}
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for (int i = textBlocks.size(); --i >= 0;)
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{
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const AlertTextComp* const ac = static_cast<const AlertTextComp*> (textBlocks.getUnchecked(i));
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w = jmax (w, ac->getPreferredWidth());
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}
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w = jmin (w, (int) (getParentWidth() * 0.7f));
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for (int i = textBlocks.size(); --i >= 0;)
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{
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AlertTextComp* const ac = static_cast<AlertTextComp*> (textBlocks.getUnchecked(i));
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ac->updateLayout ((int) (w * 0.8f));
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h += ac->getHeight() + 10;
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}
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h = jmin (getParentHeight() - 50, h);
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if (onlyIncreaseSize)
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{
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w = jmax (w, getWidth());
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h = jmax (h, getHeight());
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}
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if (! isVisible())
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{
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centreAroundComponent (associatedComponent, w, h);
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}
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else
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{
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const int cx = getX() + getWidth() / 2;
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const int cy = getY() + getHeight() / 2;
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setBounds (cx - w / 2,
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cy - h / 2,
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w, h);
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}
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textArea.setBounds (edgeGap, edgeGap, w - (edgeGap * 2), h - edgeGap);
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const int spacer = 16;
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int totalWidth = -spacer;
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for (int i = buttons.size(); --i >= 0;)
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totalWidth += buttons.getUnchecked(i)->getWidth() + spacer;
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int x = (w - totalWidth) / 2;
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int y = (int) (getHeight() * 0.95f);
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for (int i = 0; i < buttons.size(); ++i)
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{
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TextButton* const c = buttons.getUnchecked(i);
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int ny = proportionOfHeight (0.95f) - c->getHeight();
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c->setTopLeftPosition (x, ny);
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if (ny < y)
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y = ny;
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x += c->getWidth() + spacer;
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c->toFront (false);
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}
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y = textBottom;
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for (int i = 0; i < allComps.size(); ++i)
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{
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Component* const c = allComps.getUnchecked(i);
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h = 22;
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const int comboIndex = comboBoxes.indexOf (dynamic_cast<ComboBox*> (c));
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if (comboIndex >= 0 && comboBoxNames [comboIndex].isNotEmpty())
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y += labelHeight;
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const int tbIndex = textBoxes.indexOf (dynamic_cast<TextEditor*> (c));
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if (tbIndex >= 0 && textboxNames[tbIndex].isNotEmpty())
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y += labelHeight;
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if (customComps.contains (c))
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{
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if (c->getName().isNotEmpty())
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y += labelHeight;
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c->setTopLeftPosition (proportionOfWidth (0.1f), y);
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h = c->getHeight();
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}
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else if (textBlocks.contains (c))
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{
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c->setTopLeftPosition ((getWidth() - c->getWidth()) / 2, y);
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h = c->getHeight();
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}
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else
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{
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c->setBounds (proportionOfWidth (0.1f), y, proportionOfWidth (0.8f), h);
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}
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y += h + 10;
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}
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setWantsKeyboardFocus (getNumChildComponents() == 0);
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}
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bool AlertWindow::containsAnyExtraComponents() const
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{
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return allComps.size() > 0;
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}
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//==============================================================================
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void AlertWindow::mouseDown (const MouseEvent& e)
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{
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dragger.startDraggingComponent (this, e);
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}
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void AlertWindow::mouseDrag (const MouseEvent& e)
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{
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dragger.dragComponent (this, e, &constrainer);
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}
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bool AlertWindow::keyPressed (const KeyPress& key)
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{
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for (int i = buttons.size(); --i >= 0;)
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{
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TextButton* const b = buttons.getUnchecked(i);
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if (b->isRegisteredForShortcut (key))
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{
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b->triggerClick();
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return true;
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}
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}
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if (key.isKeyCode (KeyPress::escapeKey) && escapeKeyCancels && buttons.size() == 0)
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{
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exitModalState (0);
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return true;
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}
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if (key.isKeyCode (KeyPress::returnKey) && buttons.size() == 1)
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{
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buttons.getUnchecked(0)->triggerClick();
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return true;
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}
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return false;
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}
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void AlertWindow::lookAndFeelChanged()
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{
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const int newFlags = getLookAndFeel().getAlertBoxWindowFlags();
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setUsingNativeTitleBar ((newFlags & ComponentPeer::windowHasTitleBar) != 0);
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setDropShadowEnabled (isOpaque() && (newFlags & ComponentPeer::windowHasDropShadow) != 0);
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updateLayout (false);
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}
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int AlertWindow::getDesktopWindowStyleFlags() const
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{
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return getLookAndFeel().getAlertBoxWindowFlags();
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}
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//==============================================================================
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class AlertWindowInfo
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{
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public:
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AlertWindowInfo (const String& t, const String& m, Component* component,
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AlertWindow::AlertIconType icon, int numButts,
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ModalComponentManager::Callback* cb, bool runModally)
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: title (t), message (m), iconType (icon), numButtons (numButts),
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|
returnValue (0), associatedComponent (component),
|
|
callback (cb), modal (runModally)
|
|
{
|
|
}
|
|
|
|
String title, message, button1, button2, button3;
|
|
|
|
int invoke() const
|
|
{
|
|
MessageManager::getInstance()->callFunctionOnMessageThread (showCallback, (void*) this);
|
|
return returnValue;
|
|
}
|
|
|
|
private:
|
|
AlertWindow::AlertIconType iconType;
|
|
int numButtons, returnValue;
|
|
WeakReference<Component> associatedComponent;
|
|
ModalComponentManager::Callback* callback;
|
|
bool modal;
|
|
|
|
void show()
|
|
{
|
|
LookAndFeel& lf = associatedComponent != nullptr ? associatedComponent->getLookAndFeel()
|
|
: LookAndFeel::getDefaultLookAndFeel();
|
|
|
|
ScopedPointer<Component> alertBox (lf.createAlertWindow (title, message, button1, button2, button3,
|
|
iconType, numButtons, associatedComponent));
|
|
|
|
jassert (alertBox != nullptr); // you have to return one of these!
|
|
|
|
#if JUCE_MODAL_LOOPS_PERMITTED
|
|
if (modal)
|
|
{
|
|
returnValue = alertBox->runModalLoop();
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
(void) modal; // (to avoid an unused variable warning)
|
|
|
|
alertBox->enterModalState (true, callback, true);
|
|
alertBox.release();
|
|
}
|
|
}
|
|
|
|
static void* showCallback (void* userData)
|
|
{
|
|
static_cast<AlertWindowInfo*> (userData)->show();
|
|
return nullptr;
|
|
}
|
|
};
|
|
|
|
#if JUCE_MODAL_LOOPS_PERMITTED
|
|
void AlertWindow::showMessageBox (AlertIconType iconType,
|
|
const String& title,
|
|
const String& message,
|
|
const String& buttonText,
|
|
Component* associatedComponent)
|
|
{
|
|
if (LookAndFeel::getDefaultLookAndFeel().isUsingNativeAlertWindows())
|
|
{
|
|
NativeMessageBox::showMessageBox (iconType, title, message, associatedComponent);
|
|
}
|
|
else
|
|
{
|
|
AlertWindowInfo info (title, message, associatedComponent, iconType, 1, nullptr, true);
|
|
info.button1 = buttonText.isEmpty() ? TRANS("OK") : buttonText;
|
|
|
|
info.invoke();
|
|
}
|
|
}
|
|
#endif
|
|
|
|
void AlertWindow::showMessageBoxAsync (AlertIconType iconType,
|
|
const String& title,
|
|
const String& message,
|
|
const String& buttonText,
|
|
Component* associatedComponent,
|
|
ModalComponentManager::Callback* callback)
|
|
{
|
|
if (LookAndFeel::getDefaultLookAndFeel().isUsingNativeAlertWindows())
|
|
{
|
|
NativeMessageBox::showMessageBoxAsync (iconType, title, message, associatedComponent, callback);
|
|
}
|
|
else
|
|
{
|
|
AlertWindowInfo info (title, message, associatedComponent, iconType, 1, callback, false);
|
|
info.button1 = buttonText.isEmpty() ? TRANS("OK") : buttonText;
|
|
|
|
info.invoke();
|
|
}
|
|
}
|
|
|
|
bool AlertWindow::showOkCancelBox (AlertIconType iconType,
|
|
const String& title,
|
|
const String& message,
|
|
const String& button1Text,
|
|
const String& button2Text,
|
|
Component* associatedComponent,
|
|
ModalComponentManager::Callback* callback)
|
|
{
|
|
if (LookAndFeel::getDefaultLookAndFeel().isUsingNativeAlertWindows())
|
|
return NativeMessageBox::showOkCancelBox (iconType, title, message, associatedComponent, callback);
|
|
|
|
AlertWindowInfo info (title, message, associatedComponent, iconType, 2, callback, callback == nullptr);
|
|
info.button1 = button1Text.isEmpty() ? TRANS("OK") : button1Text;
|
|
info.button2 = button2Text.isEmpty() ? TRANS("Cancel") : button2Text;
|
|
|
|
return info.invoke() != 0;
|
|
}
|
|
|
|
int AlertWindow::showYesNoCancelBox (AlertIconType iconType,
|
|
const String& title,
|
|
const String& message,
|
|
const String& button1Text,
|
|
const String& button2Text,
|
|
const String& button3Text,
|
|
Component* associatedComponent,
|
|
ModalComponentManager::Callback* callback)
|
|
{
|
|
if (LookAndFeel::getDefaultLookAndFeel().isUsingNativeAlertWindows())
|
|
return NativeMessageBox::showYesNoCancelBox (iconType, title, message, associatedComponent, callback);
|
|
|
|
AlertWindowInfo info (title, message, associatedComponent, iconType, 3, callback, callback == nullptr);
|
|
info.button1 = button1Text.isEmpty() ? TRANS("Yes") : button1Text;
|
|
info.button2 = button2Text.isEmpty() ? TRANS("No") : button2Text;
|
|
info.button3 = button3Text.isEmpty() ? TRANS("Cancel") : button3Text;
|
|
|
|
return info.invoke();
|
|
}
|
|
|
|
#if JUCE_MODAL_LOOPS_PERMITTED
|
|
bool AlertWindow::showNativeDialogBox (const String& title,
|
|
const String& bodyText,
|
|
bool isOkCancel)
|
|
{
|
|
if (isOkCancel)
|
|
return NativeMessageBox::showOkCancelBox (AlertWindow::NoIcon, title, bodyText);
|
|
|
|
NativeMessageBox::showMessageBox (AlertWindow::NoIcon, title, bodyText);
|
|
return true;
|
|
}
|
|
#endif
|
|
|