542 lines
24 KiB
C++
542 lines
24 KiB
C++
// Copyright (C) 2002-2009 Nikolaus Gebhardt
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#ifndef __I_GUI_ENVIRONMENT_H_INCLUDED__
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#define __I_GUI_ENVIRONMENT_H_INCLUDED__
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#include "IReferenceCounted.h"
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#include "IGUISkin.h"
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#include "rect.h"
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#include "EMessageBoxFlags.h"
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#include "IEventReceiver.h"
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#include "IXMLReader.h"
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namespace irr
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{
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class IOSOperator;
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class IEventReceiver;
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namespace io
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{
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class IXMLWriter;
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class IReadFile;
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class IWriteFile;
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class IFileSystem;
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} // end namespace io
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namespace video
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{
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class IVideoDriver;
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class ITexture;
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} // end namespace video
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namespace gui
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{
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class IGUIElement;
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class IGUIFont;
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class IGUISpriteBank;
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class IGUIScrollBar;
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class IGUIImage;
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class IGUIMeshViewer;
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class IGUICheckBox;
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class IGUIListBox;
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class IGUIFileOpenDialog;
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class IGUIColorSelectDialog;
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class IGUIInOutFader;
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class IGUIStaticText;
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class IGUIEditBox;
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class IGUISpinBox;
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class IGUITabControl;
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class IGUITab;
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class IGUITable;
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class IGUIContextMenu;
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class IGUIComboBox;
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class IGUIToolBar;
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class IGUIButton;
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class IGUIWindow;
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class IGUIElementFactory;
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//! GUI Environment. Used as factory and manager of all other GUI elements.
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class IGUIEnvironment : public virtual IReferenceCounted
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{
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public:
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//! Draws all gui elements by traversing the GUI environment starting at the root node.
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virtual void drawAll() = 0;
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//! Sets the focus to an element.
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/** Causes a EGET_ELEMENT_FOCUS_LOST event followed by a
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EGET_ELEMENT_FOCUSED event. If someone absorbed either of the events,
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then the focus will not be changed.
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\param element Pointer to the element which shall get the focus.
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\return True on success, false on failure */
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virtual bool setFocus(IGUIElement* element) = 0;
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//! Returns the element which holds the focus.
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/** \return Pointer to the element with focus. */
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virtual IGUIElement* getFocus() const = 0;
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//! Removes the focus from an element.
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/** Causes a EGET_ELEMENT_FOCUS_LOST event. If the event is absorbed
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then the focus will not be changed.
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\param element Pointer to the element which shall lose the focus.
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\return True on success, false on failure */
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virtual bool removeFocus(IGUIElement* element) = 0;
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//! Returns whether the element has focus
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/** \param element Pointer to the element which is tested.
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\return True if the element has focus, else false. */
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virtual bool hasFocus(IGUIElement* element) const = 0;
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//! Returns the current video driver.
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/** \return Pointer to the video driver. */
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virtual video::IVideoDriver* getVideoDriver() const = 0;
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//! Returns the file system.
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/** \return Pointer to the file system. */
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virtual io::IFileSystem* getFileSystem() const = 0;
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//! returns a pointer to the OS operator
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/** \return Pointer to the OS operator. */
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virtual IOSOperator* getOSOperator() const = 0;
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//! Removes all elements from the environment.
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virtual void clear() = 0;
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//! Posts an input event to the environment.
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/** Usually you do not have to
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use this method, it is used by the engine internally.
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\param event The event to post.
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\return True if succeeded, else false. */
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virtual bool postEventFromUser(const SEvent& event) = 0;
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//! This sets a new event receiver for gui events.
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/** Usually you do not have to
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use this method, it is used by the engine internally.
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\param evr Pointer to the new receiver. */
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virtual void setUserEventReceiver(IEventReceiver* evr) = 0;
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//! Returns pointer to the current gui skin.
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/** \return Pointer to the GUI skin. */
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virtual IGUISkin* getSkin() const = 0;
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//! Sets a new GUI Skin
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/** You can use this to change the appearance of the whole GUI
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Environment. You can set one of the built-in skins or implement your
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own class derived from IGUISkin and enable it using this method.
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To set for example the built-in Windows classic skin, use the following
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code:
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\code
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gui::IGUISkin* newskin = environment->createSkin(gui::EGST_WINDOWS_CLASSIC);
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environment->setSkin(newskin);
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newskin->drop();
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\endcode
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\param skin New skin to use.
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*/
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virtual void setSkin(IGUISkin* skin) = 0;
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//! Creates a new GUI Skin based on a template.
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/** Use setSkin() to set the created skin.
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\param type The type of the new skin.
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\return Pointer to the created skin.
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If you no longer need it, you should call IGUISkin::drop().
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See IReferenceCounted::drop() for more information. */
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virtual IGUISkin* createSkin(EGUI_SKIN_TYPE type) = 0;
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//! Returns pointer to the font with the specified filename.
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/** Loads the font if it was not loaded before.
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\param filename Filename of the Font.
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\return Pointer to the font. Returns 0 if the font could not be loaded.
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This pointer should not be dropped. See IReferenceCounted::drop() for
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more information. */
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virtual IGUIFont* getFont(const c8* filename) = 0;
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//! Returns the default built-in font.
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/** \return Pointer to the default built-in font.
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This pointer should not be dropped. See IReferenceCounted::drop() for
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more information. */
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virtual IGUIFont* getBuiltInFont() const = 0;
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//! Returns pointer to the sprite bank with the specified file name.
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/** Loads the bank if it was not loaded before.
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\param filename Filename of the sprite bank's origin.
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\return Pointer to the sprite bank. Returns 0 if it could not be loaded.
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This pointer should not be dropped. See IReferenceCounted::drop() for more information. */
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virtual IGUISpriteBank* getSpriteBank(const c8* filename) = 0;
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//! Adds an empty sprite bank to the manager
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/** \param name Name of the new sprite bank.
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\return Pointer to the sprite bank.
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This pointer should not be dropped. See IReferenceCounted::drop() for more information. */
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virtual IGUISpriteBank* addEmptySpriteBank(const c8 *name) = 0;
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//! Returns the root gui element.
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/** This is the first gui element, the (direct or indirect) parent of all
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other gui elements. It is a valid IGUIElement, with dimensions the same
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size as the screen. You should not need to use this method directly, unless
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you wish to reparent GUI elements to the top level.
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\return Pointer to the root element of the GUI. The returned pointer
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should not be dropped. See IReferenceCounted::drop() for more
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information. */
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virtual IGUIElement* getRootGUIElement() = 0;
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//! Adds a button element.
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/** \param rectangle Position and dimension of the button.
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\param parent Parent gui element of the button.
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\param id Id with which the gui element can be identified.
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\param text Text displayed on the button.
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\param tooltiptext Text displayed in the tooltip.
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\return Pointer to the created button. Returns 0 if an error occured.
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This pointer should not be dropped. See IReferenceCounted::drop() for
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more information. */
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virtual IGUIButton* addButton(const core::rect<s32>& rectangle,
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IGUIElement* parent=0, s32 id=-1, const wchar_t* text=0, const wchar_t* tooltiptext = 0) = 0;
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//! Adds an empty window element.
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/** \param rectangle Position and dimension of the window.
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\param modal Defines if the dialog is modal. This means, that all other
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gui elements which were created before the window cannot be used until
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it is removed.
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\param text Text displayed as the window title.
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\param parent Parent gui element of the window.
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\param id Id with which the gui element can be identified.
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\return Pointer to the created window. Returns 0 if an error occured.
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This pointer should not be dropped. See IReferenceCounted::drop() for
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more information. */
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virtual IGUIWindow* addWindow(const core::rect<s32>& rectangle, bool modal = false,
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const wchar_t* text=0, IGUIElement* parent=0, s32 id=-1) = 0;
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//! Adds a modal screen.
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/** This control stops its parent's members from being able to receive
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input until its last child is removed, it then deletes itself.
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\param parent Parent gui element of the modal.
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\return Pointer to the created modal. Returns 0 if an error occured.
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This pointer should not be dropped. See IReferenceCounted::drop() for
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more information. */
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virtual IGUIElement* addModalScreen(IGUIElement* parent) = 0;
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//! Adds a message box.
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/** \param caption Text to be displayed the title of the message box.
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\param text Text to be displayed in the body of the message box.
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\param modal Defines if the dialog is modal. This means, that all other
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gui elements which were created before the message box cannot be used
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until this messagebox is removed.
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\param flags Flags specifying the layout of the message box. For example
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to create a message box with an OK and a CANCEL button on it, set this
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to (EMBF_OK | EMBF_CANCEL).
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\param parent Parent gui element of the message box.
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\param id Id with which the gui element can be identified.
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\return Pointer to the created message box. Returns 0 if an error
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occured. This pointer should not be dropped. See
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IReferenceCounted::drop() for more information. */
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virtual IGUIWindow* addMessageBox(const wchar_t* caption, const wchar_t* text=0,
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bool modal = true, s32 flags = EMBF_OK, IGUIElement* parent=0, s32 id=-1) = 0;
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//! Adds a scrollbar.
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/** \param horizontal Specifies if the scroll bar is drawn horizontal
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or vertical.
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\param rectangle Position and dimension of the scroll bar.
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\param parent Parent gui element of the scroll bar.
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\param id Id to identify the gui element.
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\return Pointer to the created scrollbar. Returns 0 if an error
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occured. This pointer should not be dropped. See
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IReferenceCounted::drop() for more information. */
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virtual IGUIScrollBar* addScrollBar(bool horizontal, const core::rect<s32>& rectangle,
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IGUIElement* parent=0, s32 id=-1) = 0;
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//! Adds an image element.
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/** \param image Image to be displayed.
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\param pos Position of the image. The width and height of the image is
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taken from the image.
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\param useAlphaChannel Sets if the image should use the alpha channel
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of the texture to draw itself.
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\param parent Parent gui element of the image.
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\param id Id to identify the gui element.
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\param text Title text of the image.
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\return Pointer to the created image element. Returns 0 if an error
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occured. This pointer should not be dropped. See
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IReferenceCounted::drop() for more information. */
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virtual IGUIImage* addImage(video::ITexture* image, core::position2d<s32> pos,
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bool useAlphaChannel=true, IGUIElement* parent=0, s32 id=-1, const wchar_t* text=0) = 0;
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//! Adds an image element.
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/** Use IGUIImage::setImage later to set the image to be displayed.
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\param rectangle Position and dimension of the image.
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\param parent Parent gui element of the image.
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\param id Id to identify the gui element.
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\param text Title text of the image.
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\return Pointer to the created image element. Returns 0 if an error
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occured. This pointer should not be dropped. See
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IReferenceCounted::drop() for more information. */
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virtual IGUIImage* addImage(const core::rect<s32>& rectangle,
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IGUIElement* parent=0, s32 id=-1, const wchar_t* text=0) = 0;
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//! Adds a checkbox element.
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/** \param checked Define the initial state of the check box.
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\param rectangle Position and dimension of check box.
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\param parent Parent gui element of the check box.
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\param id Id to identify the gui element.
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\param text Title text of the check box.
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\return Pointer to the created check box. Returns 0 if an error
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occured. This pointer should not be dropped. See
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IReferenceCounted::drop() for more information. */
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virtual IGUICheckBox* addCheckBox(bool checked, const core::rect<s32>& rectangle,
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IGUIElement* parent=0, s32 id=-1, const wchar_t* text=0) = 0;
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//! Adds a list box element.
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/** \param rectangle Position and dimension of list box.
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\param parent Parent gui element of the list box.
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\param id Id to identify the gui element.
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\param drawBackground Flag whether the background should be drawn.
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\return Pointer to the created list box. Returns 0 if an error occured.
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This pointer should not be dropped. See IReferenceCounted::drop() for
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more information. */
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virtual IGUIListBox* addListBox(const core::rect<s32>& rectangle,
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IGUIElement* parent=0, s32 id=-1, bool drawBackground=false) = 0;
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//! Adds a mesh viewer. Not 100% implemented yet.
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/** \param rectangle Position and dimension of mesh viewer.
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\param parent Parent gui element of the mesh viewer.
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\param id Id to identify the gui element.
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\param text Title text of the mesh viewer.
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\return Pointer to the created mesh viewer. Returns 0 if an error
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occured. This pointer should not be dropped. See
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IReferenceCounted::drop() for more information. */
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virtual IGUIMeshViewer* addMeshViewer(const core::rect<s32>& rectangle,
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IGUIElement* parent=0, s32 id=-1, const wchar_t* text=0) = 0;
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//! Adds a file open dialog.
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/** \param title Text to be displayed as the title of the dialog.
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\param modal Defines if the dialog is modal. This means, that all other
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gui elements which were created before the message box cannot be used
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until this messagebox is removed.
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\param parent Parent gui element of the dialog.
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\param id Id to identify the gui element.
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\return Pointer to the created file open dialog. Returns 0 if an error
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occured. This pointer should not be dropped. See
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IReferenceCounted::drop() for more information. */
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virtual IGUIFileOpenDialog* addFileOpenDialog(const wchar_t* title = 0,
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bool modal=true, IGUIElement* parent=0, s32 id=-1) = 0;
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//! Adds a color select dialog.
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/** \param title The title of the dialog.
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\param modal Defines if the dialog is modal. This means, that all other
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gui elements which were created before the dialog cannot be used
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until it is removed.
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\param parent The parent of the dialog.
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\param id The ID of the dialog.
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\return Pointer to the created file open dialog. Returns 0 if an error
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occured. This pointer should not be dropped. See
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IReferenceCounted::drop() for more information. */
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virtual IGUIColorSelectDialog* addColorSelectDialog(const wchar_t* title = 0,
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bool modal=true, IGUIElement* parent=0, s32 id=-1) = 0;
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//! Adds a static text.
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/** \param text Text to be displayed. Can be altered after creation by SetText().
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\param rectangle Position and dimension of the static text.
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\param border Set to true if the static text should have a 3d border.
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\param wordWrap Enable if the text should wrap into multiple lines.
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\param parent Parent item of the element, e.g. a window.
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\param id The ID of the element.
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\param fillBackground Enable if the background shall be filled.
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Defaults to false.
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\return Pointer to the created static text. Returns 0 if an error
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occured. This pointer should not be dropped. See
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IReferenceCounted::drop() for more information. */
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virtual IGUIStaticText* addStaticText(const wchar_t* text, const core::rect<s32>& rectangle,
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bool border=false, bool wordWrap=true, IGUIElement* parent=0, s32 id=-1,
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bool fillBackground = false) = 0;
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//! Adds an edit box.
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/** Supports unicode input from every keyboard around the world,
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scrolling, copying and pasting (exchanging data with the clipboard
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directly), maximum character amount, marking, and all shortcuts like
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ctrl+X, ctrl+V, ctrl+C, shift+Left, shift+Right, Home, End, and so on.
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\param text Text to be displayed. Can be altered after creation
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by setText().
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\param rectangle Position and dimension of the edit box.
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\param border Set to true if the edit box should have a 3d border.
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\param parent Parent item of the element, e.g. a window.
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Set it to 0 to place the edit box directly in the environment.
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\param id The ID of the element.
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\return Pointer to the created edit box. Returns 0 if an error occured.
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This pointer should not be dropped. See IReferenceCounted::drop() for
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more information. */
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virtual IGUIEditBox* addEditBox(const wchar_t* text, const core::rect<s32>& rectangle,
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bool border=true, IGUIElement* parent=0, s32 id=-1) = 0;
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//! Adds a spin box.
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/** An edit box with up and down buttons
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\param text Text to be displayed. Can be altered after creation by setText().
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\param rectangle Position and dimension of the spin box.
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\param parent Parent item of the element, e.g. a window.
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Set it to 0 to place the spin box directly in the environment.
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\param id The ID of the element.
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\return Pointer to the created spin box. Returns 0 if an error occured.
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This pointer should not be dropped. See IReferenceCounted::drop() for
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more information. */
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virtual IGUISpinBox* addSpinBox(const wchar_t* text, const core::rect<s32>& rectangle,
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IGUIElement* parent=0, s32 id=-1) = 0;
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//! Adds an element for fading in or out.
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/* \param rectangle Rectangle specifying the borders of the element.
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If the pointer is NULL, the whole screen is used.
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\param parent Parent item of the element, e.g. a window.
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\param id An identifier for the fader.
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\return Pointer to the created in-out-fader. Returns 0 if an error
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occured. This pointer should not be dropped. See
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IReferenceCounted::drop() for more information. */
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virtual IGUIInOutFader* addInOutFader(const core::rect<s32>* rectangle=0, IGUIElement* parent=0, s32 id=-1) = 0;
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//! Adds a tab control to the environment.
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/** \param rectangle Position and dimension of the tab control.
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\param parent Parent item of the element, e.g. a window.
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Set it to 0 to place the tab control directly in the environment.
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\param fillbackground Specifies if the background of the tab control
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should be drawn.
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\param border Specifies if a flat 3d border should be drawn. This is
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usually not necessary unless you place the control directly into
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the environment without a window as parent.
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\param id An identifier for the tab control.
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\return Pointer to the created tab control element. Returns 0 if an
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error occured. This pointer should not be dropped. See
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IReferenceCounted::drop() for more information. */
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virtual IGUITabControl* addTabControl(const core::rect<s32>& rectangle,
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IGUIElement* parent=0, bool fillbackground=false,
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bool border=true, s32 id=-1) = 0;
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//! Adds tab to the environment.
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/** You can use this element to group other elements. This is not used
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for creating tabs on tab controls, please use IGUITabControl::addTab()
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for this instead.
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\param rectangle Position and dimension of the tab.
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\param parent Parent item of the element, e.g. a window.
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Set it to 0 to place the tab directly in the environment.
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\param id An identifier for the tab.
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\return Pointer to the created tab. Returns 0 if an
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error occured. This pointer should not be dropped. See
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IReferenceCounted::drop() for more information. */
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virtual IGUITab* addTab(const core::rect<s32>& rectangle,
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IGUIElement* parent=0, s32 id=-1) = 0;
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//! Adds a context menu to the environment.
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/** \param rectangle Position and dimension of the menu. Note that the
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menu is resizing itself based on what items you add.
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\param parent Parent item of the element, e.g. a window.
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Set it to 0 to place the menu directly in the environment.
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\param id An identifier for the menu.
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\return Pointer to the created context menu. Returns 0 if an
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error occured. This pointer should not be dropped. See
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IReferenceCounted::drop() for more information. */
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virtual IGUIContextMenu* addContextMenu(const core::rect<s32>& rectangle,
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IGUIElement* parent=0, s32 id=-1) = 0;
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//! Adds a menu to the environment.
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/** This is like the menu you can find on top of most windows in modern
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graphical user interfaces.
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\param parent Parent item of the element, e.g. a window.
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Set it to 0 to place the menu directly in the environment.
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\param id An identifier for the menu.
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\return Pointer to the created menu. Returns 0 if an
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error occured. This pointer should not be dropped. See
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IReferenceCounted::drop() for more information. */
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virtual IGUIContextMenu* addMenu(IGUIElement* parent=0, s32 id=-1) = 0;
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//! Adds a toolbar to the environment.
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/** It is like a menu that is always placed on top of its parent, and
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contains buttons.
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\param parent Parent item of the element, e.g. a window.
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Set it to 0 to place the tool bar directly in the environment.
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\param id An identifier for the tool bar.
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\return Pointer to the created tool bar. Returns 0 if an
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error occured. This pointer should not be dropped. See
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IReferenceCounted::drop() for more information. */
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virtual IGUIToolBar* addToolBar(IGUIElement* parent=0, s32 id=-1) = 0;
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//! Adds a combo box to the environment.
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/** \param rectangle Position and dimension of the combo box.
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\param parent Parent item of the element, e.g. a window.
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Set it to 0 to place the combo box directly in the environment.
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\param id An identifier for the combo box.
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\return Pointer to the created combo box. Returns 0 if an
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error occured. This pointer should not be dropped. See
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IReferenceCounted::drop() for more information. */
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virtual IGUIComboBox* addComboBox(const core::rect<s32>& rectangle,
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IGUIElement* parent=0, s32 id=-1) = 0;
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//! Adds a table to the environment
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/** \param rectangle Position and dimension of the table.
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\param parent Parent item of the element, e.g. a window. Set it to 0
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to place the element directly in the environment.
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\param id An identifier for the table.
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\param drawBackground Flag whether the background should be drawn.
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\return Pointer to the created table. Returns 0 if an error occured.
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This pointer should not be dropped. See IReferenceCounted::drop() for
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more information. */
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virtual IGUITable* addTable(const core::rect<s32>& rectangle,
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IGUIElement* parent=0, s32 id=-1, bool drawBackground = false) = 0;
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//! Returns the default element factory which can create all built in elements
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/** \return Pointer to the factory.
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This pointer should not be dropped. See IReferenceCounted::drop() for
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more information. */
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virtual IGUIElementFactory* getDefaultGUIElementFactory() const = 0;
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//! Adds an element factory to the gui environment.
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/** Use this to extend the gui environment with new element types which
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it should be able to create automatically, for example when loading
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data from xml files.
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\param factoryToAdd Pointer to new factory. */
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virtual void registerGUIElementFactory(IGUIElementFactory* factoryToAdd) = 0;
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//! Returns amount of registered gui element factories.
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/** \return Amount of registered gui element factories. */
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virtual u32 getRegisteredGUIElementFactoryCount() const = 0;
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//! Returns a gui element factory by index
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virtual IGUIElementFactory* getGUIElementFactory(u32 index) const = 0;
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//! Adds a GUI Element by its name
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virtual IGUIElement* addGUIElement(const c8* elementName, IGUIElement* parent=0) = 0;
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//! Saves the current gui into a file.
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/** \param filename Name of the file.
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\param start The GUIElement to start with. Root if 0. */
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virtual bool saveGUI(const c8* filename, IGUIElement* start=0) = 0;
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//! Saves the current gui into a file.
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/** \param file The file to write to.
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\param start The GUIElement to start with. Root if 0. */
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virtual bool saveGUI(io::IWriteFile* file, IGUIElement* start=0) = 0;
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//! Loads the gui. Note that the current gui is not cleared before.
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/** \param filename Name of the file.
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\param parent Parent for the loaded GUI, root if 0. */
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|
virtual bool loadGUI(const c8* filename, IGUIElement* parent=0) = 0;
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//! Loads the gui. Note that the current gui is not cleared before.
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|
/** \param file The file to load from.
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|
\param parent Parent for the loaded GUI, root if 0. */
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|
virtual bool loadGUI(io::IReadFile* file, IGUIElement* parent=0) = 0;
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//! Writes attributes of the gui environment
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|
virtual void serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options=0) const =0;
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//! Reads attributes of the gui environment
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|
virtual void deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options=0)=0;
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//! writes an element
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virtual void writeGUIElement(io::IXMLWriter* writer, IGUIElement* node) =0;
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//! reads an element
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|
virtual void readGUIElement(io::IXMLReader* reader, IGUIElement* node) =0;
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};
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} // end namespace gui
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} // end namespace irr
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#endif
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