/* _______ __ __ __ ______ __ __ _______ __ __ * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\ * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / / * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / / * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / / * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ / * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/ * * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson * * * Per Larsson a.k.a finalman * Olof Naessén a.k.a jansem/yakslem * * Visit: http://guichan.sourceforge.net * * License: (BSD) * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name of Guichan nor the names of its contributors may * be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef GCN_GUI_HPP #define GCN_GUI_HPP #include #include #include "guichan/keyevent.hpp" #include "guichan/mouseevent.hpp" #include "guichan/mouseinput.hpp" namespace gcn { class FocusHandler; class Graphics; class Input; class KeyListener; class Widget; // The following comment will appear in the doxygen main page. /** * @mainpage * @section Introduction * This documentation is mostly intended as a reference to the API. * If you want to get started with Guichan, we suggest you check out * the programs in the examples directory of the Guichan release. * @n * @n * This documentation is, and will always be, work in progress. * If you find any errors, typos or inconsistencies, or if you feel * something needs to be explained in more detail - don't hesitate to * tell us. */ /** * Contains a Guichan GUI. This is the core class of Guichan to which * implementations of back ends are passed, to make Guichan work with * a specific library, and to where the top widget (root widget of GUI) * is added. If you want to be able to have more then one widget in your * GUI, the top widget should be a container. * * A Gui object cannot work properly without passing back end * implementations to it. A Gui object must have an implementation of a * Graphics and an implementation of Input. * * NOTE: A complete GUI also must have the ability to load images. * Images are loaded with the Image class, so to make Guichan * able to load images an implementation of ImageLoader must be * passed to Image. * * @see Graphics, Input, Image */ class Gui { public: /** * Constructor. */ Gui(); A_DELETE_COPY(Gui) /** * Destructor. */ virtual ~Gui(); /** * Sets the top widget. The top widget is the root widget * of the GUI. If you want a GUI to be able to contain more * than one widget the top widget should be a container. * * @param top The top widget. * @see Container * @since 0.1.0 */ virtual void setTop(Widget* top); /** * Gets the top widget. The top widget is the root widget * of the GUI. * * @return The top widget. NULL if no top widget has been set. * @since 0.1.0 */ virtual Widget* getTop() const A_WARN_UNUSED; /** * Sets the graphics object to use for drawing. * * @param graphics The graphics object to use for drawing. * @see getGraphics, AllegroGraphics, HGEGraphics, * OpenLayerGraphics, OpenGLGraphics, SDLGraphics * @since 0.1.0 */ virtual void setGraphics(Graphics* graphics); /** * Gets the graphics object used for drawing. * * @return The graphics object used for drawing. NULL if no * graphics object has been set. * @see setGraphics, AllegroGraphics, HGEGraphics, * OpenLayerGraphics, OpenGLGraphics, SDLGraphics * @since 0.1.0 */ virtual Graphics* getGraphics() const A_WARN_UNUSED; /** * Sets the input object to use for input handling. * * @param input The input object to use for input handling. * @see getInput, AllegroInput, HGEInput, OpenLayerInput, * SDLInput * @since 0.1.0 */ virtual void setInput(Input* input); /** * Gets the input object being used for input handling. * * @return The input object used for handling input. NULL if no * input object has been set. * @see setInput, AllegroInput, HGEInput, OpenLayerInput, * SDLInput * @since 0.1.0 */ virtual Input* getInput() const A_WARN_UNUSED; /** * Performs logic of the GUI. By calling this function all logic * functions down in the GUI heirarchy will be called. When logic * is called for Gui, user input will be handled. * * @see Widget::logic * @since 0.1.0 */ virtual void logic(); /** * Draws the GUI. By calling this funcion all draw functions * down in the GUI hierarchy will be called. When draw is called * the used Graphics object will be initialised and drawing of * the top widget will commence. * * @see Widget::draw * @since 0.1.0 */ virtual void draw(); /** * Focuses none of the widgets in the Gui. * * @since 0.1.0 */ virtual void focusNone(); /** * Sets tabbing enabled, or not. Tabbing is the usage of * changing focus by utilising the tab key. * * @param tabbing True if tabbing should be enabled, false * otherwise. * @see isTabbingEnabled * @since 0.1.0 */ virtual void setTabbingEnabled(bool tabbing); /** * Checks if tabbing is enabled. * * @return True if tabbing is enabled, false otherwise. * @see setTabbingEnabled * @since 0.1.0 */ virtual bool isTabbingEnabled(); /** * Adds a global key listener to the Gui. A global key listener * will receive all key events generated from the GUI and global * key listeners will receive the events before key listeners * of widgets. * * @param keyListener The key listener to add. * @see removeGlobalKeyListener * @since 0.5.0 */ virtual void addGlobalKeyListener(KeyListener* keyListener); /** * Removes global key listener from the Gui. * * @param keyListener The key listener to remove. * @throws Exception if the key listener hasn't been added. * @see addGlobalKeyListener * @since 0.5.0 */ virtual void removeGlobalKeyListener(KeyListener* keyListener); protected: /** * Handles all mouse input. * * @since 0.6.0 */ virtual void handleMouseInput(); /** * Handles key input. * * @since 0.6.0 */ virtual void handleKeyInput(); /** * Handles mouse moved input. * * @param mouseInput The mouse input to handle. * @since 0.6.0 */ virtual void handleMouseMoved(const MouseInput& mouseInput); /** * * Handles mouse wheel moved down input. * * @param mouseInput The mouse input to handle. * @since 0.6.0 */ virtual void handleMouseWheelMovedDown(const MouseInput& mouseInput); /** * Handles mouse wheel moved up input. * * @param mouseInput The mouse input to handle. * @since 0.6.0 */ virtual void handleMouseWheelMovedUp(const MouseInput& mouseInput); /** * Handles modal focus. Modal focus needs to be checked at * each logic iteration as it might be necessary to distribute * mouse entered or mouse exited events. * * @since 0.8.0 */ virtual void handleModalFocus(); /** * Handles modal mouse input focus. Modal mouse input focus needs * to be checked at each logic iteration as it might be necessary to * distribute mouse entered or mouse exited events. * * @since 0.8.0 */ virtual void handleModalMouseInputFocus(); /** * Handles modal focus gained. If modal focus has been gained it might * be necessary to distribute mouse entered or mouse exited events. * * @since 0.8.0 */ virtual void handleModalFocusGained(); /** * Handles modal mouse input focus gained. If modal focus has been * gained it might be necessary to distribute mouse entered or mouse * exited events. * * @since 0.8.0 */ virtual void handleModalFocusReleased(); /** * Distributes a mouse event. * * @param type The type of the event to distribute, * @param button The button of the event (if any used) to distribute. * @param x The x coordinate of the event. * @param y The y coordinate of the event. * @param fource indicates whether the distribution should be forced or not. * A forced distribution distributes the event even if a widget * is not enabled, not visible, another widget has modal * focus or another widget has modal mouse input focus. * Default value is false. * @param toSourceOnly indicates whether the distribution should be to the * source widget only or to it's parent's mouse listeners * as well. * * @since 0.6.0 */ virtual void distributeMouseEvent(Widget* source, int type, int button, int x, int y, bool force = false, bool toSourceOnly = false); /** * Distributes a key event. * * @param keyEvent The key event to distribute. * @since 0.6.0 */ virtual void distributeKeyEvent(KeyEvent& keyEvent); /** * Distributes a key event to the global key listeners. * * @param keyEvent The key event to distribute. * * @since 0.6.0 */ virtual void distributeKeyEventToGlobalKeyListeners(KeyEvent& keyEvent); /** * Gets the widget at a certain position. * * @return The widget at a certain position. * @since 0.6.0 */ virtual Widget* getWidgetAt(int x, int y) A_WARN_UNUSED; /** * Gets the source of the mouse event. * * @return The source widget of the mouse event. * @since 0.6.0 */ virtual Widget* getMouseEventSource(int x, int y) A_WARN_UNUSED; /** * Gets the source of the key event. * * @return The source widget of the key event. * @since 0.6.0 */ virtual Widget* getKeyEventSource() A_WARN_UNUSED; /** * Holds the top widget. */ Widget* mTop; /** * Holds the graphics implementation used. */ Graphics* mGraphics; /** * Holds the input implementation used. */ Input* mInput; /** * Holds the focus handler for the Gui. */ FocusHandler* mFocusHandler; /** * True if tabbing is enabled, false otherwise. */ bool mTabbing; /** * Typedef. */ typedef std::list KeyListenerList; /** * Typedef. */ typedef KeyListenerList::iterator KeyListenerListIterator; /** * Holds the global key listeners of the Gui. */ KeyListenerList mKeyListeners; /** * True if shift is pressed, false otherwise. */ bool mShiftPressed; /** * True if meta is pressed, false otherwise. */ bool mMetaPressed; /** * True if control is pressed, false otherwise. */ bool mControlPressed; /** * True if alt is pressed, false otherwise. */ bool mAltPressed; /** * Holds the last mouse button pressed. */ unsigned int mLastMousePressButton; /** * Holds the last mouse press time stamp. */ int mLastMousePressTimeStamp; /** * Holds the last mouse x coordinate. */ int mLastMouseX; /** * Holds the last mouse y coordinate. */ int mLastMouseY; /** * Holds the current click count. Used to keep track * of clicks for a the last pressed button. */ int mClickCount; /** * Holds the last button used when a drag of a widget * was initiated. Used to be able to release a drag * when the same button is released. */ int mLastMouseDragButton; /** * Holds a stack with all the widgets with the mouse. * Used to properly distribute mouse events. */ std::deque mWidgetWithMouseQueue; }; } // namespace gcn #endif // end GCN_GUI_HPP /* yakslem - "Women, it's a constant struggle." * finalman - "Yes, but sometimes they succeed with their guesses." * yaklsem - "...eh...I was talking about love." * finalman - "Oh...ok..." * An awkward silence followed. */