1195 lines
37 KiB
C++
Executable File
1195 lines
37 KiB
C++
Executable File
/* _______ __ __ __ ______ __ __ _______ __ __
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* / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\
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* / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
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* / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / /
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* / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / /
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* /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
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* \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
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*
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* Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
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*
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*
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* Per Larsson a.k.a finalman
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* Olof Naessén a.k.a jansem/yakslem
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*
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* Visit: http://guichan.sourceforge.net
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*
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* License: (BSD)
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name of Guichan nor the names of its contributors may
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* be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef GCN_WIDGET_HPP
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#define GCN_WIDGET_HPP
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#include <list>
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#include <string>
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#include "guichan/color.hpp"
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#include "guichan/rectangle.hpp"
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namespace gcn
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{
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class ActionListener;
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class BasicContainer;
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class DeathListener;
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class DefaultFont;
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class FocusHandler;
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class FocusListener;
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class Font;
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class Graphics;
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class KeyInput;
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class KeyListener;
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class MouseInput;
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class MouseListener;
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class WidgetListener;
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/**
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* Abstract class for widgets of Guichan. It contains basic functions
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* every widget should have.
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*
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* NOTE: Functions begining with underscore "_" should not
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* be overloaded unless you know what you are doing
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*
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* @author Olof Naessén
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* @author Per Larsson.
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* @since 0.1.0
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*/
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class GCN_CORE_DECLSPEC Widget
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{
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public:
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/**
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* Constructor. Resets member variables. Noteable, a widget is not
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* focusable as default, therefore, widgets that are supposed to be
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* focusable should overide this default in their own constructor.
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*/
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Widget();
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/**
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* Default destructor.
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*/
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virtual ~Widget();
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/**
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* Draws the widget. It is called by the parent widget when it is time
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* for the widget to draw itself. The graphics object is set up so
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* that all drawing is relative to the widget, i.e coordinate (0,0) is
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* the top left corner of the widget. It is not possible to draw
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* outside of a widget's dimension.
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*
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* @param graphics aA graphics object to draw with.
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* @since 0.1.0
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*/
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virtual void draw(Graphics* graphics) = 0;
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/**
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* Called when a widget is given a chance to draw a frame around itself.
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* The frame is not considered a part of the widget, it only allows a frame
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* to be drawn around the widget, thus a frame will never be included when
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* calculating if a widget should receive events from user input. Also
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* a widget's frame will never be included when calculating a widget's
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* position.
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*
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* The size of the frame is calculated using the widget's frame size.
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* If a widget has a frame size of 10 pixels than the area the drawFrame
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* function can draw to will be the size of the widget with an additional
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* extension of 10 pixels in each direction.
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*
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* An example when drawFrame is a useful function is if a widget needs
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* a glow around itself.
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*
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* @param graphics A graphics object to draw with.
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* @see setFrameSize, getFrameSize
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* @since 0.8.0
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*/
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virtual void drawFrame(Graphics* graphics);
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/**
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* Sets the size of the widget's frame. The frame is not considered a part of
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* the widget, it only allows a frame to be drawn around the widget, thus a frame
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* will never be included when calculating if a widget should receive events
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* from user input. Also a widget's frame will never be included when calculating
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* a widget's position.
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*
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* A frame size of 0 means that the widget has no frame. The default frame size
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* is 0.
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*
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* @param frameSize The size of the widget's frame.
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* @see getFrameSize, drawFrame
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* @since 0.8.0
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*/
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void setFrameSize(unsigned int frameSize);
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/**
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* Gets the size of the widget's frame. The frame is not considered a part of
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* the widget, it only allows a frame to be drawn around the widget, thus a frame
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* will never be included when calculating if a widget should receive events
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* from user input. Also a widget's frame will never be included when calculating
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* a widget's position.
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*
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* A frame size of 0 means that the widget has no frame. The default frame size
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* is 0.
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*
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* @return The size of the widget's frame.
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* @see setFrameSize, drawFrame
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* @since 0.8.0
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*/
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unsigned int getFrameSize() const;
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/**
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* Called for all widgets in the gui each time Gui::logic is called.
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* You can do logic stuff here like playing an animation.
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*
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* @see Gui::logic
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* @since 0.1.0
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*/
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virtual void logic() { }
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/**
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* Gets the widget's parent container.
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*
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* @return The widget's parent container. NULL if the widget
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* has no parent.
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* @since 0.1.0
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*/
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virtual Widget* getParent() const;
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/**
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* Sets the width of the widget.
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*
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* @param width The width of the widget.
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* @see getWidth, setHeight, getHeight, setSize,
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* setDimension, getDimensi
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* @since 0.1.0
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*/
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void setWidth(int width);
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/**
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* Gets the width of the widget.
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*
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* @return The width of the widget.
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* @see setWidth, setHeight, getHeight, setSize,
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* setDimension, getDimension
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* @since 0.1.0
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*/
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int getWidth() const;
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/**
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* Sets the height of the widget.
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*
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* @param height The height of the widget.
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* @see getHeight, setWidth, getWidth, setSize,
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* setDimension, getDimension
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* @since 0.1.0
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*/
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void setHeight(int height);
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/**
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* Gets the height of the widget.
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*
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* @return The height of the widget.
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* @see setHeight, setWidth, getWidth, setSize,
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* setDimension, getDimension
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* @since 0.1.0
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*/
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int getHeight() const;
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/**
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* Sets the size of the widget.
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*
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* @param width The width of the widget.
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* @param height The height of the widget.
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* @see setWidth, setHeight, getWidth, getHeight,
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* setDimension, getDimension
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* @since 0.1.0
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*/
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void setSize(int width, int height);
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/**
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* Sets the x coordinate of the widget. The coordinate is
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* relateive to the widget's parent.
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*
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* @param x The x coordinate of the widget.
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* @see getX, setY, getY, setPosition, setDimension, getDimension
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* @since 0.1.0
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*/
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void setX(int x);
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/**
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* Gets the x coordinate of the widget. The coordinate is
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* relative to the widget's parent.
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*
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* @return The x coordinate of the widget.
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* @see setX, setY, getY, setPosition, setDimension, getDimension
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* @since 0.1.0
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*/
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int getX() const;
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/**
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* Sets the y coordinate of the widget. The coordinate is
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* relative to the widget's parent.
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*
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* @param y The y coordinate of the widget.
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* @see setY, setX, getX, setPosition, setDimension, getDimension
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* @since 0.1.0
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*/
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void setY(int y);
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/**
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* Gets the y coordinate of the widget. The coordinate is
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* relative to the widget's parent.
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*
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* @return The y coordinate of the widget.
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* @see setY, setX, getX, setPosition, setDimension, getDimension
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* @since 0.1.0
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*/
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int getY() const;
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/**
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* Sets position of the widget. The position is relative
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* to the widget's parent.
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*
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* @param x The x coordinate of the widget.
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* @param y The y coordinate of the widget.
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* @see setX, getX, setY, getY, setDimension, getDimension
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* @since 0.1.0
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*/
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void setPosition(int x, int y);
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/**
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* Sets the dimension of the widget. The dimension is
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* relative to the widget's parent.
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*
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* @param dimension The dimension of the widget.
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* @see getDimension, setX, getX, setY, getY, setPosition
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* @since 0.1.0
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*/
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void setDimension(const Rectangle& dimension);
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/**
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* Gets the dimension of the widget. The dimension is
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* relative to the widget's parent.
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*
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* @return The dimension of the widget.
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* @see getDimension, setX, getX, setY, getY, setPosition
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* @since 0.1.0
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*/
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const Rectangle& getDimension() const;
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/**
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* Sets the widget to be fosusable, or not.
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*
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* @param focusable True if the widget should be focusable,
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* false otherwise.
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* @see isFocusable
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* @since 0.1.0
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*/
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void setFocusable(bool focusable);
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/**
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* Checks if a widget is focsable.
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*
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* @return True if the widget should be focusable, false otherwise.
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* @see setFocusable
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* @since 0.1.0
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*/
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bool isFocusable() const;
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/**
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* Checks if the widget is focused.
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*
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* @return True if the widget is focused, false otherwise.
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* @since 0.1.0
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*/
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virtual bool isFocused() const;
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/**
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* Sets the widget to enabled, or not. A disabled
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* widget will never recieve mouse or key events.
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*
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* @param enabled True if widget should be enabled,
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* false otherwise.
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* @see isEnabled
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* @since 0.1.0
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*/
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void setEnabled(bool enabled);
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/**
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* Checks if the widget is enabled. A disabled
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* widget will never recieve mouse or key events.
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*
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* @return True if widget is enabled, false otherwise.
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* @see setEnabled
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* @since 0.1.0
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*/
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bool isEnabled() const;
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/**
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* Sets the widget to be visible, or not.
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*
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* @param visible True if widget should be visible, false otherwise.
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* @see isVisible
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* @since 0.1.0
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*/
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void setVisible(bool visible);
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/**
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* Checks if the widget is visible.
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*
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* @return True if widget is be visible, false otherwise.
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* @see setVisible
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* @since 0.1.0
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*/
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bool isVisible() const;
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/**
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* Sets the base color of the widget.
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*
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* @param color The baseground color.
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* @see getBaseColor
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* @since 0.1.0
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*/
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void setBaseColor(const Color& color);
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/**
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* Gets the base color.
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*
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* @return The base color.
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* @see setBaseColor
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* @since 0.1.0
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*/
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const Color& getBaseColor() const;
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/**
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* Sets the foreground color.
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*
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* @param color The foreground color.
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* @see getForegroundColor
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* @since 0.1.0
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*/
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void setForegroundColor(const Color& color);
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/**
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* Gets the foreground color.
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*
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* @see setForegroundColor
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* @since 0.1.0
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*/
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const Color& getForegroundColor() const;
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/**
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* Sets the background color.
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*
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* @param color The background Color.
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* @see setBackgroundColor
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* @since 0.1.0
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*/
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void setBackgroundColor(const Color& color);
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/**
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* Gets the background color.
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*
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* @see setBackgroundColor
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* @since 0.1.0
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*/
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const Color& getBackgroundColor() const;
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/**
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* Sets the selection color.
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*
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* @param color The selection color.
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* @see getSelectionColor
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* @since 0.6.0
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*/
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void setSelectionColor(const Color& color);
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/**
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* Gets the selection color.
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*
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* @return The selection color.
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* @see setSelectionColor
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* @since 0.6.0
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*/
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const Color& getSelectionColor() const;
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/**
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* Requests focus for the widget. A widget will only recieve focus
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* if it is focusable.
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*/
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virtual void requestFocus();
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/**
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* Requests a move to the top in the parent widget.
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*/
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virtual void requestMoveToTop();
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/**
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* Requests a move to the bottom in the parent widget.
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*/
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virtual void requestMoveToBottom();
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/**
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* Sets the focus handler to be used.
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*
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* WARNING: This function is used internally and should not
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* be called or overloaded unless you know what you
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* are doing.
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*
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* @param focusHandler The focus handler to use.
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* @see _getFocusHandler
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* @since 0.1.0
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*/
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virtual void _setFocusHandler(FocusHandler* focusHandler);
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/**
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* Gets the focus handler used.
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*
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* WARNING: This function is used internally and should not
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* be called or overloaded unless you know what you
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* are doing.
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*
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* @return The focus handler used.
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* @see _setFocusHandler
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* @since 0.1.0
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*/
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virtual FocusHandler* _getFocusHandler();
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/**
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* Adds an action listener to the widget. When an action event
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* is fired by the widget the action listeners of the widget
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* will get notified.
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*
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* @param actionListener The action listener to add.
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* @see removeActionListener
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* @since 0.1.0
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*/
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void addActionListener(ActionListener* actionListener);
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/**
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* Removes an added action listener from the widget.
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*
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* @param actionListener The action listener to remove.
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* @see addActionListener
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* @since 0.1.0
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*/
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void removeActionListener(ActionListener* actionListener);
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/**
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* Adds a death listener to the widget. When a death event is
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* fired by the widget the death listeners of the widget will
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* get notified.
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*
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* @param deathListener The death listener to add.
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* @see removeDeathListener
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* @since 0.1.0
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*/
|
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void addDeathListener(DeathListener* deathListener);
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|
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/**
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* Removes an added death listener from the widget.
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*
|
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* @param deathListener The death listener to remove.
|
|
* @see addDeathListener
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|
* @since 0.1.0
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*/
|
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void removeDeathListener(DeathListener* deathListener);
|
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|
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/**
|
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* Adds a mouse listener to the widget. When a mouse event is
|
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* fired by the widget the mouse listeners of the widget will
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* get notified.
|
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*
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* @param mouseListener The mouse listener to add.
|
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* @see removeMouseListener
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|
* @since 0.1.0
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*/
|
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void addMouseListener(MouseListener* mouseListener);
|
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|
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/**
|
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* Removes an added mouse listener from the widget.
|
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*
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* @param mouseListener The mouse listener to remove.
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* @see addMouseListener
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* @since 0.1.0
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*/
|
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void removeMouseListener(MouseListener* mouseListener);
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|
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/**
|
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* Adds a key listener to the widget. When a key event is
|
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* fired by the widget the key listeners of the widget will
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* get notified.
|
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*
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* @param keyListener The key listener to add.
|
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* @see removeKeyListener
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* @since 0.1.0
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*/
|
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void addKeyListener(KeyListener* keyListener);
|
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|
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/**
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* Removes an added key listener from the widget.
|
|
*
|
|
* @param keyListener The key listener to remove.
|
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* @see addKeyListener
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|
* @since 0.1.0
|
|
*/
|
|
void removeKeyListener(KeyListener* keyListener);
|
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|
|
/**
|
|
* Adds a focus listener to the widget. When a focus event is
|
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* fired by the widget the key listeners of the widget will
|
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* get notified.
|
|
*
|
|
* @param focusListener The focus listener to add.
|
|
* @see removeFocusListener
|
|
* @since 0.7.0
|
|
*/
|
|
void addFocusListener(FocusListener* focusListener);
|
|
|
|
/**
|
|
* Removes an added focus listener from the widget.
|
|
*
|
|
* @param focusListener The focus listener to remove.
|
|
* @see addFocusListener
|
|
* @since 0.7.0
|
|
*/
|
|
void removeFocusListener(FocusListener* focusListener);
|
|
|
|
/**
|
|
* Adds a widget listener to the widget. When a widget event is
|
|
* fired by the widget the key listeners of the widget will
|
|
* get notified.
|
|
*
|
|
* @param widgetListener The widget listener to add.
|
|
* @see removeWidgetListener
|
|
* @since 0.8.0
|
|
*/
|
|
void addWidgetListener(WidgetListener* widgetListener);
|
|
|
|
/**
|
|
* Removes an added widget listener from the widget.
|
|
*
|
|
* @param widgetListener The widget listener to remove.
|
|
* @see addWidgetListener
|
|
* @since 0.8.0
|
|
*/
|
|
void removeWidgetListener(WidgetListener* widgetListener);
|
|
|
|
/**
|
|
* Sets the action event identifier of the widget. The identifier is
|
|
* used to be able to identify which action has occured.
|
|
*
|
|
* NOTE: An action event identifier should not be used to identify a
|
|
* certain widget but rather a certain event in your application.
|
|
* Several widgets can have the same action event identifer.
|
|
*
|
|
* @param actionEventId The action event identifier.
|
|
* @see getActionEventId
|
|
* @since 0.6.0
|
|
*/
|
|
void setActionEventId(const std::string& actionEventId);
|
|
|
|
/**
|
|
* Gets the action event identifier of the widget.
|
|
*
|
|
* @return The action event identifier of the widget.
|
|
* @see setActionEventId
|
|
* @since 0.6.0
|
|
*/
|
|
const std::string& getActionEventId() const;
|
|
|
|
/**
|
|
* Gets the absolute position on the screen for the widget.
|
|
*
|
|
* @param x The absolute x coordinate will be stored in this parameter.
|
|
* @param y The absolute y coordinate will be stored in this parameter.
|
|
* @since 0.1.0
|
|
*/
|
|
virtual void getAbsolutePosition(int& x, int& y) const;
|
|
|
|
/**
|
|
* Sets the parent of the widget. A parent must be a BasicContainer.
|
|
*
|
|
* WARNING: This function is used internally and should not
|
|
* be called or overloaded unless you know what you
|
|
* are doing.
|
|
*
|
|
* @param parent The parent of the widget.
|
|
* @see getParent
|
|
* @since 0.1.0
|
|
*/
|
|
virtual void _setParent(Widget* parent);
|
|
|
|
/**
|
|
* Gets the font set for the widget. If no font has been set,
|
|
* the global font will be returned. If no global font has been set,
|
|
* the default font will be returend.
|
|
*
|
|
* @return The font set for the widget.
|
|
* @see setFont, setGlobalFont
|
|
* @since 0.1.0
|
|
*/
|
|
Font *getFont() const;
|
|
|
|
/**
|
|
* Sets the global font to be used by default for all widgets.
|
|
*
|
|
* @param font The global font.
|
|
* @see getGlobalFont
|
|
* @since 0.1.0
|
|
*/
|
|
static void setGlobalFont(Font* font);
|
|
|
|
/**
|
|
* Sets the font for the widget. If NULL is passed, the global font
|
|
* will be used.
|
|
*
|
|
* @param font The font to set for the widget.
|
|
* @see getFont
|
|
* @since 0.1.0
|
|
*/
|
|
void setFont(Font* font);
|
|
|
|
/**
|
|
* Called when the font has changed. If the change is global,
|
|
* this function will only be called if the widget doesn't have a
|
|
* font already set.
|
|
*
|
|
* @since 0.1.0
|
|
*/
|
|
virtual void fontChanged() { }
|
|
|
|
/**
|
|
* Checks if a widget exists or not, that is if it still exists
|
|
* an instance of the object.
|
|
*
|
|
* @param widget The widget to check.
|
|
* @return True if an instance of the widget exists, false otherwise.
|
|
* @since 0.1.0
|
|
*/
|
|
static bool widgetExists(const Widget* widget);
|
|
|
|
/**
|
|
* Checks if tab in is enabled. Tab in means that you can set focus
|
|
* to this widget by pressing the tab button. If tab in is disabled
|
|
* then the focus handler will skip this widget and focus the next
|
|
* in its focus order.
|
|
*
|
|
* @return True if tab in is enabled, false otherwise.
|
|
* @see setTabInEnabled
|
|
* @since 0.1.0
|
|
*/
|
|
bool isTabInEnabled() const;
|
|
|
|
/**
|
|
* Sets tab in enabled, or not. Tab in means that you can set focus
|
|
* to this widget by pressing the tab button. If tab in is disabled
|
|
* then the FocusHandler will skip this widget and focus the next
|
|
* in its focus order.
|
|
*
|
|
* @param enabled True if tab in should be enabled, false otherwise.
|
|
* @see isTabInEnabled
|
|
* @since 0.1.0
|
|
*/
|
|
void setTabInEnabled(bool enabled);
|
|
|
|
/**
|
|
* Checks if tab out is enabled. Tab out means that you can lose
|
|
* focus to this widget by pressing the tab button. If tab out is
|
|
* disabled then the FocusHandler ignores tabbing and focus will
|
|
* stay with this widget.
|
|
*
|
|
* @return True if tab out is enabled, false otherwise.
|
|
* @see setTabOutEnabled
|
|
* @since 0.1.0
|
|
*/
|
|
bool isTabOutEnabled() const;
|
|
|
|
/**
|
|
* Sets tab out enabled. Tab out means that you can lose
|
|
* focus to this widget by pressing the tab button. If tab out is
|
|
* disabled then the FocusHandler ignores tabbing and focus will
|
|
* stay with this widget.
|
|
*
|
|
* @param enabled True if tab out should be enabled, false otherwise.
|
|
* @see isTabOutEnabled
|
|
* @since 0.1.0
|
|
*/
|
|
void setTabOutEnabled(bool enabled);
|
|
|
|
/**
|
|
* Requests modal focus. When a widget has modal focus, only that
|
|
* widget and it's children may recieve input.
|
|
*
|
|
* @throws Exception if another widget already has modal focus.
|
|
* @see releaseModalFocus, isModalFocused
|
|
* @since 0.4.0
|
|
*/
|
|
virtual void requestModalFocus();
|
|
|
|
/**
|
|
* Requests modal mouse input focus. When a widget has modal input focus
|
|
* that widget will be the only widget receiving input even if the input
|
|
* occurs outside of the widget and no matter what the input is.
|
|
*
|
|
* @throws Exception if another widget already has modal focus.
|
|
* @see releaseModalMouseInputFocus, isModalMouseInputFocused
|
|
* @since 0.6.0
|
|
*/
|
|
virtual void requestModalMouseInputFocus();
|
|
|
|
/**
|
|
* Releases modal focus. Modal focus will only be released if the
|
|
* widget has modal focus.
|
|
*
|
|
* @see requestModalFocus, isModalFocused
|
|
* @since 0.4.0
|
|
*/
|
|
virtual void releaseModalFocus();
|
|
|
|
/**
|
|
* Releases modal mouse input focus. Modal mouse input focus will only
|
|
* be released if the widget has modal mouse input focus.
|
|
*
|
|
* @see requestModalMouseInputFocus, isModalMouseInputFocused
|
|
* @since 0.6.0
|
|
*/
|
|
virtual void releaseModalMouseInputFocus();
|
|
|
|
/**
|
|
* Checks if the widget or it's parent has modal focus.
|
|
*
|
|
* @return True if the widget has modal focus, false otherwise.
|
|
* @see requestModalFocus, releaseModalFocus
|
|
* @since 0.8.0
|
|
*/
|
|
virtual bool isModalFocused() const;
|
|
|
|
/**
|
|
* Checks if the widget or it's parent has modal mouse input focus.
|
|
*
|
|
* @return True if the widget has modal mouse input focus, false
|
|
* otherwise.
|
|
* @see requestModalMouseInputFocus, releaseModalMouseInputFocus
|
|
* @since 0.8.0
|
|
*/
|
|
virtual bool isModalMouseInputFocused() const;
|
|
|
|
/**
|
|
* Gets a widget from a certain position in the widget.
|
|
* This function is used to decide which gets mouse input,
|
|
* thus it can be overloaded to change that behaviour.
|
|
*
|
|
* NOTE: This always returns NULL if the widget is not
|
|
* a container.
|
|
*
|
|
* @param x The x coordinate of the widget to get.
|
|
* @param y The y coordinate of the widget to get.
|
|
* @return The widget at the specified coodinate, NULL
|
|
* if no widget is found.
|
|
* @since 0.6.0
|
|
*/
|
|
virtual Widget *getWidgetAt(int x, int y);
|
|
|
|
/**
|
|
* Gets the mouse listeners of the widget.
|
|
*
|
|
* @return The mouse listeners of the widget.
|
|
* @since 0.6.0
|
|
*/
|
|
virtual const std::list<MouseListener*>& _getMouseListeners();
|
|
|
|
/**
|
|
* Gets the key listeners of the widget.
|
|
*
|
|
* @return The key listeners of the widget.
|
|
* @since 0.6.0
|
|
*/
|
|
virtual const std::list<KeyListener*>& _getKeyListeners();
|
|
|
|
/**
|
|
* Gets the focus listeners of the widget.
|
|
*
|
|
* @return The focus listeners of the widget.
|
|
* @since 0.7.0
|
|
*/
|
|
virtual const std::list<FocusListener*>& _getFocusListeners();
|
|
|
|
/**
|
|
* Gets the area of the widget occupied by the widget's children.
|
|
* By default this method returns an empty rectangle as not all
|
|
* widgets are containers. If you want to make a container this
|
|
* method should return the area where the children resides. This
|
|
* method is used when drawing children of a widget when computing
|
|
* clip rectangles for the children.
|
|
*
|
|
* An example of a widget that overloads this method is ScrollArea.
|
|
* A ScrollArea has a view of its contant and that view is the
|
|
* children area. The size of a ScrollArea's children area might
|
|
* vary depending on if the scroll bars of the ScrollArea is shown
|
|
* or not.
|
|
*
|
|
* @return The area of the widget occupied by the widget's children.
|
|
* @see BasicContainer
|
|
* @see BasicContainer::getChildrenArea
|
|
* @see BasicContainer::drawChildren
|
|
* @since 0.1.0
|
|
*/
|
|
virtual Rectangle getChildrenArea();
|
|
|
|
/**
|
|
* Gets the internal focus handler used.
|
|
*
|
|
* @return the internalFocusHandler used. If no internal focus handler
|
|
* is used, NULL will be returned.
|
|
* @see setInternalFocusHandler
|
|
* @since 0.1.0
|
|
*/
|
|
virtual FocusHandler* _getInternalFocusHandler();
|
|
|
|
/**
|
|
* Sets the internal focus handler. An internal focus handler is
|
|
* needed if both a widget in the widget and the widget itself
|
|
* should be foucsed at the same time.
|
|
*
|
|
* @param focusHandler The internal focus handler to be used.
|
|
* @see getInternalFocusHandler
|
|
* @since 0.1.0
|
|
*/
|
|
void setInternalFocusHandler(FocusHandler* internalFocusHandler);
|
|
|
|
/**
|
|
* Moves a widget to the top of this widget. The moved widget will be
|
|
* drawn above all other widgets in this widget.
|
|
*
|
|
* @param widget The widget to move to the top.
|
|
* @see moveToBottom
|
|
* @since 0.1.0
|
|
*/
|
|
virtual void moveToTop(Widget* widget) { };
|
|
|
|
/**
|
|
* Moves a widget in this widget to the bottom of this widget.
|
|
* The moved widget will be drawn below all other widgets in this widget.
|
|
*
|
|
* @param widget The widget to move to the bottom.
|
|
* @see moveToTop
|
|
* @since 0.1.0
|
|
*/
|
|
virtual void moveToBottom(Widget* widget) { };
|
|
|
|
/**
|
|
* Focuses the next widget in the widget.
|
|
*
|
|
* @see moveToBottom
|
|
* @since 0.1.0
|
|
*/
|
|
virtual void focusNext() { };
|
|
|
|
/**
|
|
* Focuses the previous widget in the widget.
|
|
*
|
|
* @see moveToBottom
|
|
* @since 0.1.0
|
|
*/
|
|
virtual void focusPrevious() { };
|
|
|
|
/**
|
|
* Tries to show a specific part of a widget by moving it. Used if the
|
|
* widget should act as a container.
|
|
*
|
|
* @param widget The target widget.
|
|
* @param area The area to show.
|
|
* @since 0.1.0
|
|
*/
|
|
virtual void showWidgetPart(Widget* widget, Rectangle area) { };
|
|
|
|
/**
|
|
* Sets an id of a widget. An id can be useful if a widget needs to be
|
|
* identified in a container. For example, if widgets are created by an
|
|
* XML document, a certain widget can be retrieved given that the widget
|
|
* has an id.
|
|
*
|
|
* @param id The id to set to the widget.
|
|
* @see getId, BasicContainer::findWidgetById
|
|
* @since 0.8.0
|
|
*/
|
|
void setId(const std::string& id);
|
|
|
|
/**
|
|
* Gets the id of a widget. An id can be useful if a widget needs to be
|
|
* identified in a container. For example, if widgets are created by an
|
|
* XML document, a certain widget can be retrieved given that the widget
|
|
* has an id.
|
|
*
|
|
* @param id The id to set to the widget.
|
|
* @see setId, BasicContainer::findWidgetById
|
|
* @since 0.8.0
|
|
*/
|
|
const std::string& getId();
|
|
|
|
/**
|
|
* Shows a certain part of a widget in the widget's parent.
|
|
* Used when widgets want a specific part to be visible in
|
|
* its parent. An example is a TextArea that wants a specific
|
|
* part of its text to be visible when a TextArea is a child
|
|
* of a ScrollArea.
|
|
*
|
|
* @param rectangle The rectangle to be shown.
|
|
* @since 0.8.0
|
|
*/
|
|
virtual void showPart(Rectangle rectangle);
|
|
|
|
protected:
|
|
/**
|
|
* Distributes an action event to all action listeners
|
|
* of the widget.
|
|
*
|
|
* @since 0.8.0
|
|
*/
|
|
void distributeActionEvent();
|
|
|
|
/**
|
|
* Distributes resized events to all of the widget's listeners.
|
|
*
|
|
* @since 0.8.0
|
|
*/
|
|
void distributeResizedEvent();
|
|
|
|
/**
|
|
* Distributes moved events to all of the widget's listeners.
|
|
*
|
|
* @since 0.8.0
|
|
*/
|
|
void distributeMovedEvent();
|
|
|
|
/**
|
|
* Distributes hidden events to all of the widget's listeners.
|
|
*
|
|
* @since 0.8.0
|
|
* @author Olof Naessén
|
|
*/
|
|
void distributeHiddenEvent();
|
|
|
|
/**
|
|
* Distributes shown events to all of the widget's listeners.
|
|
*
|
|
* @since 0.8.0
|
|
* @author Olof Naessén
|
|
*/
|
|
void distributeShownEvent();
|
|
|
|
/**
|
|
* Typdef.
|
|
*/
|
|
typedef std::list<MouseListener*> MouseListenerList;
|
|
|
|
/**
|
|
* Typdef.
|
|
*/
|
|
typedef MouseListenerList::iterator MouseListenerIterator;
|
|
|
|
/**
|
|
* Holds the mouse listeners of the widget.
|
|
*/
|
|
MouseListenerList mMouseListeners;
|
|
|
|
/**
|
|
* Typdef.
|
|
*/
|
|
typedef std::list<KeyListener*> KeyListenerList;
|
|
|
|
/**
|
|
* Holds the key listeners of the widget.
|
|
*/
|
|
KeyListenerList mKeyListeners;
|
|
|
|
/**
|
|
* Typdef.
|
|
*/
|
|
typedef KeyListenerList::iterator KeyListenerIterator;
|
|
|
|
/**
|
|
* Typdef.
|
|
*/
|
|
typedef std::list<ActionListener*> ActionListenerList;
|
|
|
|
/**
|
|
* Holds the action listeners of the widget.
|
|
*/
|
|
ActionListenerList mActionListeners;
|
|
|
|
/**
|
|
* Typdef.
|
|
*/
|
|
typedef ActionListenerList::iterator ActionListenerIterator;
|
|
|
|
/**
|
|
* Typdef.
|
|
*/
|
|
typedef std::list<DeathListener*> DeathListenerList;
|
|
|
|
/**
|
|
* Holds the death listeners of the widget.
|
|
*/
|
|
DeathListenerList mDeathListeners;
|
|
|
|
/**
|
|
* Typdef.
|
|
*/
|
|
typedef DeathListenerList::iterator DeathListenerIterator;
|
|
|
|
/**
|
|
* Typdef.
|
|
*/
|
|
typedef std::list<FocusListener*> FocusListenerList;
|
|
|
|
/**
|
|
* Holds the focus listeners of the widget.
|
|
*/
|
|
FocusListenerList mFocusListeners;
|
|
|
|
/**
|
|
* Typdef.
|
|
*/
|
|
typedef FocusListenerList::iterator FocusListenerIterator;
|
|
|
|
typedef std::list<WidgetListener*> WidgetListenerList;
|
|
|
|
/**
|
|
* Holds the widget listeners of the widget.
|
|
*/
|
|
WidgetListenerList mWidgetListeners;
|
|
|
|
/**
|
|
* Typdef.
|
|
*/
|
|
typedef WidgetListenerList::iterator WidgetListenerIterator;
|
|
|
|
/**
|
|
* Holds the foreground color of the widget.
|
|
*/
|
|
Color mForegroundColor;
|
|
|
|
/**
|
|
* Holds the background color of the widget.
|
|
*/
|
|
Color mBackgroundColor;
|
|
|
|
/**
|
|
* Holds the base color of the widget.
|
|
*/
|
|
Color mBaseColor;
|
|
|
|
/**
|
|
* Holds the selection color of the widget.
|
|
*/
|
|
Color mSelectionColor;
|
|
|
|
/**
|
|
* Holds the focus handler used by the widget.
|
|
*/
|
|
FocusHandler* mFocusHandler;
|
|
|
|
/**
|
|
* Holds the focus handler used by the widget. NULL
|
|
* if no internal focus handler is used.
|
|
*/
|
|
FocusHandler* mInternalFocusHandler;
|
|
|
|
/**
|
|
* Holds the parent of the widget. NULL if the widget
|
|
* has no parent.
|
|
*/
|
|
Widget* mParent;
|
|
|
|
/**
|
|
* Holds the dimension of the widget.
|
|
*/
|
|
Rectangle mDimension;
|
|
|
|
/**
|
|
* Holds the frame size of the widget.
|
|
*/
|
|
unsigned int mFrameSize;
|
|
|
|
/**
|
|
* Holds the action event of the widget.
|
|
*/
|
|
std::string mActionEventId;
|
|
|
|
/**
|
|
* True if the widget focusable, false otherwise.
|
|
*/
|
|
bool mFocusable;
|
|
|
|
/**
|
|
* True if the widget visible, false otherwise.
|
|
*/
|
|
bool mVisible;
|
|
|
|
/**
|
|
* True if the widget has tab in enabled, false otherwise.
|
|
*/
|
|
bool mTabIn;
|
|
|
|
/**
|
|
* True if the widget has tab in enabled, false otherwise.
|
|
*/
|
|
bool mTabOut;
|
|
|
|
/**
|
|
* True if the widget is enabled, false otherwise.
|
|
*/
|
|
bool mEnabled;
|
|
|
|
/**
|
|
* Holds the id of the widget.
|
|
*/
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std::string mId;
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/**
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* Holds the font used by the widget.
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*/
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Font* mCurrentFont;
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/**
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* Holds the default font used by the widget.
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*/
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static DefaultFont mDefaultFont;
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/**
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* Holds the global font used by the widget.
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*/
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static Font* mGlobalFont;
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/**
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* Holds a list of all instances of widgets.
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*/
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static std::list<Widget*> mWidgets;
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};
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}
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#endif // end GCN_WIDGET_HPP
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