haiku-beta6/src/servers/app/server/ViewDriver.h

//------------------------------------------------------------------------------
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//	File Name:		ViewDriver.h
//	Author:			DarkWyrm <[email protected]>
//	Description:	BView/BWindow combination graphics module
//  
//------------------------------------------------------------------------------
#ifndef _VIEWDRIVER_H_
#define _VIEWDRIVER_H_

#include <Application.h>
#include <Window.h>
#include <View.h>
#include <GraphicsCard.h>
#include <GraphicsDefs.h>	// for pattern struct
#include <Cursor.h>
#include <Message.h>
#include <Region.h>
#include <Font.h>
#include "DisplayDriver.h"
#include "FontServer.h"

class BBitmap;
class PortLink;
class VDWindow;
class DrawData;

class VDView : public BView
{
public:
	VDView(BRect bounds);
	~VDView(void);
	void AttachedToWindow(void);
	void Draw(BRect rect);
	void MouseDown(BPoint pt);
	void MouseMoved(BPoint pt, uint32 transit, const BMessage *msg);
	void MouseUp(BPoint pt);
	void MessageReceived(BMessage *msg);
		
	BBitmap *viewbmp;
	PortLink *serverlink;
	
	int hide_cursor;
	BBitmap *cursor;
	
	BRect cursorframe, oldcursorframe;
	bool obscure_cursor;
};

class VDWindow : public BWindow
{
public:
	VDWindow(BRect frame);
	~VDWindow(void);
	void MessageReceived(BMessage *msg);
	bool QuitRequested(void);
	void WindowActivated(bool active);
	
	VDView *view;
};

/*!
	\brief BView/BWindow combination graphics module

	First, slowest, and easiest driver class in the app_server which is designed
	to utilize the BeOS graphics functions to cut out a lot of junk in getting the
	drawing infrastructure in this server.
	
	The concept is to have VDView::Draw() draw a bitmap, which is a "frame buffer" 
	of sorts, utilize a second view to write to it. This cuts out
	the most problems with having a crapload of code to get just right without
	having to write a bunch of unit tests
	
	Components:		3 classes, VDView, VDWindow, and ViewDriver
	
	ViewDriver - a wrapper class which mostly posts messages to the VDWindow
	VDWindow - does most of the work.
	VDView - doesn't do all that much except display the rendered bitmap
*/
class ViewDriver : public DisplayDriver
{
public:
	ViewDriver(void);
	~ViewDriver(void);

	virtual	bool				Initialize(void); // Sets the driver
	virtual	void				Shutdown(void); // You never know when you'll need this
	
	// Drawing functions
	void DrawBitmap(ServerBitmap *bmp, const BRect &src, const BRect &dest, const DrawData *d);

	virtual	void				InvertRect(const BRect &r);

	virtual void				StrokeLineArray(BPoint *pts, const int32 &numlines,
									const DrawData *d, RGBColor *colors);

	virtual	void				SetMode(const display_mode &mode);
	
	virtual	bool				DumpToFile(const char *path);

			VDWindow			*screenwin;

	virtual	status_t			SetDPMSMode(const uint32 &state);
	virtual	uint32				DPMSMode(void) const;
	virtual	uint32				DPMSCapabilities(void) const;
	virtual	status_t			GetDeviceInfo(accelerant_device_info *info);
	virtual	status_t			GetModeList(display_mode **mode_list, uint32 *count);
	virtual	status_t			GetPixelClockLimits(display_mode *mode, uint32 *low, uint32 *high);
	virtual	status_t			GetTimingConstraints(display_timing_constraints *dtc);
	virtual	status_t			ProposeMode(display_mode *candidate, const display_mode *low, const display_mode *high);
	virtual	status_t			WaitForRetrace(bigtime_t timeout=B_INFINITE_TIMEOUT);

protected:
	virtual	void				FillSolidRect(const BRect &rect, const RGBColor &color);
	virtual	void				FillPatternRect(const BRect &rect, const DrawData *d);
	virtual	void				StrokeSolidRect(const BRect &rect, const RGBColor &color);
	virtual void				StrokeSolidLine(int32 x1, int32 y1, int32 x2, int32 y2,
										const RGBColor &color);
	virtual	void				SetDrawData(const DrawData *d, bool set_font_data=false);
	virtual	void				StrokePatternLine(int32 x1, int32 y1, int32 x2, int32 y2,
													const DrawData *d);
	virtual	void				CopyBitmap(ServerBitmap *bitmap, const BRect &source,
											const BRect &dest, const DrawData *d);
	virtual	void CopyToBitmap(ServerBitmap *target, const BRect &source);
		// temporarily virtual - until clipping code is added in DisplayDriver
	virtual	void ConstrainClippingRegion(BRegion *reg);	


	virtual	bool				AcquireBuffer(FBBitmap *bmp);
	virtual	void				ReleaseBuffer(void);
	virtual	void				Invalidate(const BRect &r);
	
//	void BlitMono2RGB32(FT_Bitmap *src, BPoint pt, DrawData *d);
//	void BlitGray2RGB32(FT_Bitmap *src, BPoint pt, DrawData *d);
	rgb_color					GetBlitColor(rgb_color src, rgb_color dest,
											 DrawData *d, bool use_high=true);

	int hide_cursor;
	bool obscure_cursor;
	BBitmap *framebuffer;
	BView *drawview;
	BRegion laregion;

	PortLink *serverlink;
//	drawing_mode drawmode;
	
	rgb_color highcolor,lowcolor;
};

#endif