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GHOST_IWindow.h

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/**
 * $Id: GHOST_IWindow.h,v 1.7 2003/12/26 20:12:40 rwenzlaff Exp $
 * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version. The Blender
 * Foundation also sells licenses for use in proprietary software under
 * the Blender License.  See http://www.blender.org/BL/ for information
 * about this.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL/BL DUAL LICENSE BLOCK *****
 */
/**
 * @file    GHOST_IWindow.h
 * Declaration of GHOST_IWindow interface class.
 */

#ifndef _GHOST_IWINDOW_H_
#define _GHOST_IWINDOW_H_

#include "STR_String.h"
#include "GHOST_Rect.h"
#include "GHOST_Types.h"


/**
 * 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:
 * <ul>
 * <li>The screen coordinate system. The origin of the screen is located in the
 * upper left corner of the screen.</li> 
 * <li>The client rectangle coordinate system. The client rectangle of a window
 * is the area that is drawable by the application (excluding title bars etc.).
 * </li> 
 * </ul>
 * @author  Maarten Gribnau
 * @date    May 31, 2001
 */
00062 class GHOST_IWindow
{
public:
      /**
       * Destructor.
       */
00068       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 type of drawing context used in this window.
       * @return The current type of drawing context.
       */
      inline 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 STR_String& title) = 0;

      /**
       * Returns the title displayed in the title bar.
       * @param title   The title displayed in the title bar.
       */
      virtual void getTitle(STR_String& title) 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(GHOST_TUns32 width) = 0;

      /**
       * Resizes client rectangle height.
       * @param height The new height of the client area of the window.
       */
      virtual     GHOST_TSuccess setClientHeight(GHOST_TUns32 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(GHOST_TUns32 width, GHOST_TUns32 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(GHOST_TInt32 inX, GHOST_TInt32 inY, GHOST_TInt32& outX, GHOST_TInt32& outY) const = 0;

      /**
       * Converts a point in screen coordinates to client rectangle 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(GHOST_TInt32 inX, GHOST_TInt32 inY, GHOST_TInt32& outX, GHOST_TInt32& outY) 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 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;

      /**
       * Activates the drawing context of this window.
       * @return  A boolean success indicator.
       */
      virtual GHOST_TSuccess activateDrawingContext() = 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.
       */
      inline virtual GHOST_TUserDataPtr getUserData() const = 0;
      
      /**
       * Changes the window user data.
       * @param data The window user data.
       */
      virtual void setUserData(const GHOST_TUserDataPtr userData) = 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   cursor      The new cursor shape type id.
       * @return  Indication of success.
       */
      virtual GHOST_TSuccess setCursorShape(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 hotspot.
       * @param   hotY  The Y coordinate of the cursor hotspot.
       * @return  Indication of success.
       */
      virtual GHOST_TSuccess setCustomCursorShape(GHOST_TUns8 bitmap[16][2], 
                                                                        GHOST_TUns8 mask[16][2], 
                                                                        int hotX, 
                                                                        int hotY) = 0;
                                                                        
      virtual GHOST_TSuccess setCustomCursorShape(GHOST_TUns8 *bitmap, 
                                                                        GHOST_TUns8 *mask, 
                                                                        int sizex, int sizey, 
                                                                        int hotX, int hotY, 
                                                                        int fg_color, int bg_color) = 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;
};

#endif // _GHOST_IWINDOW_H_


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