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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2001-2002 NaN Holding BV. All rights reserved. */
/** \file
* \ingroup GHOST
* Declaration of GHOST_IWindow interface class.
*/
#pragma once
#include "GHOST_Rect.h"
#include "GHOST_Types.h"
#include <stdlib.h>
#include <string>
/**
* Interface for GHOST windows.
*
* You can create a window with the system's GHOST_ISystem::createWindow
* method.
* \see GHOST_ISystem#createWindow
*
* There are two coordinate systems:
*
* - The screen coordinate system. The origin of the screen is located in the
* upper left corner of the screen.
* - The client rectangle coordinate system. The client rectangle of a window
* is the area that is drawable by the application (excluding title bars etc.).
*/
class GHOST_IWindow {
public:
/**
* Destructor.
*/
virtual ~GHOST_IWindow()
{
}
/**
* Returns indication as to whether the window is valid.
* \return The validity of the window.
*/
virtual bool getValid() const = 0;
/**
* Returns the associated OS object/handle
* \return The associated OS object/handle
*/
virtual void *getOSWindow() const = 0;
/**
* Returns the type of drawing context used in this window.
* \return The current type of drawing context.
*/
virtual GHOST_TDrawingContextType getDrawingContextType() = 0;
/**
* Tries to install a rendering context in this window.
* \param type: The type of rendering context installed.
* \return Indication as to whether installation has succeeded.
*/
virtual GHOST_TSuccess setDrawingContextType(GHOST_TDrawingContextType type) = 0;
/**
* Sets the title displayed in the title bar.
* \param title: The title to display in the title bar.
*/
virtual void setTitle(const char *title) = 0;
/**
* Returns the title displayed in the title bar.
* \param title: The title displayed in the title bar.
*/
virtual std::string getTitle() const = 0;
/**
* Returns the window rectangle dimensions.
* These are screen coordinates.
* \param bounds: The bounding rectangle of the window.
*/
virtual void getWindowBounds(GHOST_Rect &bounds) const = 0;
/**
* Returns the client rectangle dimensions.
* The left and top members of the rectangle are always zero.
* \param bounds: The bounding rectangle of the client area of the window.
*/
virtual void getClientBounds(GHOST_Rect &bounds) const = 0;
/**
* Resizes client rectangle width.
* \param width: The new width of the client area of the window.
*/
virtual GHOST_TSuccess setClientWidth(uint32_t width) = 0;
/**
* Resizes client rectangle height.
* \param height: The new height of the client area of the window.
*/
virtual GHOST_TSuccess setClientHeight(uint32_t height) = 0;
/**
* Resizes client rectangle.
* \param width: The new width of the client area of the window.
* \param height: The new height of the client area of the window.
*/
virtual GHOST_TSuccess setClientSize(uint32_t width, uint32_t height) = 0;
/**
* Converts a point in screen coordinates to client rectangle coordinates
* \param inX: The x-coordinate on the screen.
* \param inY: The y-coordinate on the screen.
* \param outX: The x-coordinate in the client rectangle.
* \param outY: The y-coordinate in the client rectangle.
*/
virtual void screenToClient(int32_t inX, int32_t inY, int32_t &outX, int32_t &outY) const = 0;
/**
* Converts a point in client rectangle coordinates to screen coordinates.
* \param inX: The x-coordinate in the client rectangle.
* \param inY: The y-coordinate in the client rectangle.
* \param outX: The x-coordinate on the screen.
* \param outY: The y-coordinate on the screen.
*/
virtual void clientToScreen(int32_t inX, int32_t inY, int32_t &outX, int32_t &outY) const = 0;
/**
* Tells if the ongoing drag'n'drop object can be accepted upon mouse drop
*/
virtual void setAcceptDragOperation(bool canAccept) = 0;
/**
* Returns acceptance of the dropped object
* Usually called by the "object dropped" event handling function
*/
virtual bool canAcceptDragOperation() const = 0;
/**
* Returns the state of the window (normal, minimized, maximized).
* \return The state of the window.
*/
virtual GHOST_TWindowState getState() const = 0;
/**
* Sets the state of the window (normal, minimized, maximized).
* \param state: The state of the window.
* \return Indication of success.
*/
virtual GHOST_TSuccess setState(GHOST_TWindowState state) = 0;
/**
* Sets the window "modified" status, indicating unsaved changes
* \param isUnsavedChanges: Unsaved changes or not.
* \return Indication of success.
*/
virtual GHOST_TSuccess setModifiedState(bool isUnsavedChanges) = 0;
/**
* Gets the window "modified" status, indicating unsaved changes
* \return True if there are unsaved changes
*/
virtual bool getModifiedState() = 0;
/**
* Sets the order of the window (bottom, top).
* \param order: The order of the window.
* \return Indication of success.
*/
virtual GHOST_TSuccess setOrder(GHOST_TWindowOrder order) = 0;
/**
* Swaps front and back buffers of a window.
* \return A boolean success indicator.
*/
virtual GHOST_TSuccess swapBuffers() = 0;
/**
* Sets the swap interval for #swapBuffers.
* \param interval: The swap interval to use.
* \return A boolean success indicator.
*/
virtual GHOST_TSuccess setSwapInterval(int interval) = 0;
/**
* Gets the current swap interval for #swapBuffers.
* \param intervalOut: pointer to location to return swap interval.
* (left untouched if there is an error)
* \return A boolean success indicator of if swap interval was successfully read.
*/
virtual GHOST_TSuccess getSwapInterval(int &intervalOut) = 0;
/**
* Activates the drawing context of this window.
* \return A boolean success indicator.
*/
virtual GHOST_TSuccess activateDrawingContext() = 0;
/**
* Gets the OpenGL frame-buffer associated with the window's contents.
* \return The name of an OpenGL frame-buffer object.
*/
virtual unsigned int getDefaultFramebuffer() = 0;
/**
* Invalidates the contents of this window.
* \return Indication of success.
*/
virtual GHOST_TSuccess invalidate() = 0;
/**
* Returns the window user data.
* \return The window user data.
*/
virtual GHOST_TUserDataPtr getUserData() const = 0;
/**
* Changes the window user data.
* \param userData: The window user data.
*/
virtual void setUserData(const GHOST_TUserDataPtr userData) = 0;
virtual bool isDialog() const = 0;
/***************************************************************************************
* Progress bar functionality
***************************************************************************************/
/**
* Sets the progress bar value displayed in the window/application icon
* \param progress: The progress percentage (0.0 to 1.0).
*/
virtual GHOST_TSuccess setProgressBar(float progress) = 0;
/**
* Hides the progress bar in the icon
*/
virtual GHOST_TSuccess endProgressBar() = 0;
/***************************************************************************************
* Cursor management functionality
***************************************************************************************/
/**
* Returns the current cursor shape.
* \return The current cursor shape.
*/
virtual GHOST_TStandardCursor getCursorShape() const = 0;
/**
* Set the shape of the cursor.
* \param cursorShape: The new cursor shape type id.
* \return Indication of success.
*/
virtual GHOST_TSuccess setCursorShape(GHOST_TStandardCursor cursorShape) = 0;
virtual GHOST_TSuccess getCursorGrabBounds(GHOST_Rect &bounds) = 0;
virtual void getCursorGrabState(GHOST_TGrabCursorMode &mode,
GHOST_TAxisFlag &axis_flag,
GHOST_Rect &bounds,
bool &use_software_cursor) = 0;
virtual bool getCursorGrabUseSoftwareDisplay() = 0;
/**
* Test if the standard cursor shape is supported by current platform.
* \return Indication of success.
*/
virtual GHOST_TSuccess hasCursorShape(GHOST_TStandardCursor cursorShape) = 0;
/**
* Set the shape of the cursor to a custom cursor.
* \param bitmap: The bitmap data for the cursor.
* \param mask: The mask data for the cursor.
* \param hotX: The X coordinate of the cursor hot-spot.
* \param hotY: The Y coordinate of the cursor hot-spot.
* \return Indication of success.
*/
virtual GHOST_TSuccess setCustomCursorShape(uint8_t *bitmap,
uint8_t *mask,
int sizex,
int sizey,
int hotX,
int hotY,
bool canInvertColor) = 0;
/**
* Returns the visibility state of the cursor.
* \return The visibility state of the cursor.
*/
virtual bool getCursorVisibility() const = 0;
/**
* Shows or hides the cursor.
* \param visible: The new visibility state of the cursor.
* \return Indication of success.
*/
virtual GHOST_TSuccess setCursorVisibility(bool visible) = 0;
/**
* Grabs the cursor for a modal operation.
* \param grab: The new grab state of the cursor.
* \return Indication of success.
*/
virtual GHOST_TSuccess setCursorGrab(GHOST_TGrabCursorMode /*mode*/,
GHOST_TAxisFlag /*wrap_axis*/,
GHOST_Rect * /*bounds*/,
int32_t /*mouse_ungrab_xy*/[2])
{
return GHOST_kSuccess;
}
/** */
virtual GHOST_TSuccess beginFullScreen() const = 0;
virtual GHOST_TSuccess endFullScreen() const = 0;
virtual float getNativePixelSize(void) = 0;
/**
* Returns the recommended DPI for this window.
* \return The recommended DPI for this window.
*/
virtual uint16_t getDPIHint() = 0;
#ifdef WITH_INPUT_IME
/**
* Enable IME attached to the given window, i.e. allows user-input
* events to be dispatched to the IME.
* \param x: Requested x-coordinate of the rectangle.
* \param y: Requested y-coordinate of the rectangle.
* \param w: Requested width of the rectangle.
* \param h: Requested height of the rectangle.
* \param complete: Whether or not to complete the ongoing composition.
* - true: Start a new composition
* - false: Move the IME windows to the given position without finishing it.
*/
virtual void beginIME(int32_t x, int32_t y, int32_t w, int32_t h, bool completed) = 0;
/**
* Disable the IME attached to the given window, i.e. prohibits any user-input
* events from being dispatched to the IME.
*/
virtual void endIME() = 0;
#endif /* WITH_INPUT_IME */
#ifdef WITH_CXX_GUARDEDALLOC
MEM_CXX_CLASS_ALLOC_FUNCS("GHOST:GHOST_IWindow")
#endif
};
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