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125 lines
4.8 KiB
125 lines
4.8 KiB
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2015 - ROLI 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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#ifndef JUCE_CHOICEPROPERTYCOMPONENT_H_INCLUDED
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#define JUCE_CHOICEPROPERTYCOMPONENT_H_INCLUDED
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//==============================================================================
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/**
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A PropertyComponent that shows its value as a combo box.
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This type of property component contains a list of options and has a
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combo box to choose one.
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Your subclass's constructor must add some strings to the choices StringArray
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and these are shown in the list.
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The getIndex() method will be called to find out which option is the currently
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selected one. If you call refresh() it will call getIndex() to check whether
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the value has changed, and will update the combo box if needed.
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If the user selects a different item from the list, setIndex() will be
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called to let your class process this.
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@see PropertyComponent, PropertyPanel
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*/
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class JUCE_API ChoicePropertyComponent : public PropertyComponent,
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private ComboBoxListener // (can't use ComboBox::Listener due to idiotic VC2005 bug)
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{
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protected:
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/** Creates the component.
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Your subclass's constructor must add a list of options to the choices member variable.
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*/
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ChoicePropertyComponent (const String& propertyName);
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public:
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/** Creates the component.
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Note that if you call this constructor then you must use the Value to interact with the
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index, and you can't override the class with your own setIndex or getIndex methods.
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If you want to use those methods, call the other constructor instead.
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@param valueToControl the value that the combo box will read and control
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@param propertyName the name of the property
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@param choices the list of possible values that the drop-down list will contain
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@param correspondingValues a list of values corresponding to each item in the 'choices' StringArray.
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These are the values that will be read and written to the
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valueToControl value. This array must contain the same number of items
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as the choices array
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*/
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ChoicePropertyComponent (const Value& valueToControl,
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const String& propertyName,
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const StringArray& choices,
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const Array<var>& correspondingValues);
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/** Destructor. */
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~ChoicePropertyComponent();
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//==============================================================================
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/** Called when the user selects an item from the combo box.
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Your subclass must use this callback to update the value that this component
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represents. The index is the index of the chosen item in the choices
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StringArray.
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*/
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virtual void setIndex (int newIndex);
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/** Returns the index of the item that should currently be shown.
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This is the index of the item in the choices StringArray that will be shown.
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*/
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virtual int getIndex() const;
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/** Returns the list of options. */
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const StringArray& getChoices() const;
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//==============================================================================
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/** @internal */
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void refresh();
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protected:
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/** The list of options that will be shown in the combo box.
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Your subclass must populate this array in its constructor. If any empty
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strings are added, these will be replaced with horizontal separators (see
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ComboBox::addSeparator() for more info).
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*/
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StringArray choices;
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private:
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ComboBox comboBox;
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bool isCustomClass;
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class RemapperValueSource;
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void createComboBox();
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void comboBoxChanged (ComboBox*);
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ChoicePropertyComponent)
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};
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#endif // JUCE_CHOICEPROPERTYCOMPONENT_H_INCLUDED
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