Major overhaul of DisplayDriver API

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@6335 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/servers/app/server/LayerData.cpp

@@ -0,0 +1,171 @@
+//------------------------------------------------------------------------------
+//	Copyright (c) 2001-2002, OpenBeOS
+//
+//	Permission is hereby granted, free of charge, to any person obtaining a
+//	copy of this software and associated documentation files (the "Software"),
+//	to deal in the Software without restriction, including without limitation
+//	the rights to use, copy, modify, merge, publish, distribute, sublicense,
+//	and/or sell copies of the Software, and to permit persons to whom the
+//	Software is furnished to do so, subject to the following conditions:
+//
+//	The above copyright notice and this permission notice shall be included in
+//	all copies or substantial portions of the Software.
+//
+//	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+//	FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+//	DEALINGS IN THE SOFTWARE.
+//
+//	File Name:		LayerData.cpp
+//	Author:			DarkWyrm <[email protected]>
+//					Adi Oanca <[email protected]>
+//	Description:	Data classes for working with BView states and draw parameters
+//  
+//------------------------------------------------------------------------------
+#include "LayerData.h"
+#include <Layer.h>
+
+DrawData::DrawData(void)
+{
+	pensize=1.0;
+	penlocation.Set(0,0);
+	highcolor.SetColor(0, 0, 0, 255);
+	lowcolor.SetColor(255, 255, 255, 255);
+
+	patt=pat_solidhigh;
+	draw_mode=B_OP_COPY;
+	
+	lineCap	=B_BUTT_CAP;
+	lineJoin=B_BEVEL_JOIN;
+	miterLimit=B_DEFAULT_MITER_LIMIT;
+
+	alphaSrcMode=B_PIXEL_ALPHA;
+	alphaFncMode=B_ALPHA_OVERLAY;
+
+	scale=1.0;
+	fontAliasing=true;
+
+	if(fontserver)
+		font=*(fontserver->GetSystemPlain());
+	
+	clippReg=NULL;
+
+	edelta.space=0;
+	edelta.nonspace=0;
+}
+
+DrawData::~DrawData(void)
+{
+	if (clippReg)
+		delete clippReg;
+}
+
+DrawData::DrawData(const DrawData &data)
+{
+	*this=data;
+}
+
+DrawData &DrawData::operator=(const DrawData &from)
+{
+	pensize=from.pensize;
+	highcolor=from.highcolor;
+	lowcolor=from.lowcolor;
+
+	patt=from.patt;
+	draw_mode=from.draw_mode;
+	penlocation=from.penlocation;
+	
+	lineCap=from.lineCap;
+	lineJoin=from.lineJoin;
+	miterLimit=from.miterLimit;
+	
+	alphaSrcMode=from.alphaSrcMode;
+	alphaFncMode=from.alphaFncMode;
+
+	scale=from.scale;
+	fontAliasing=from.fontAliasing;
+	font=from.font;
+	
+	if(from.clippReg)
+	{
+		if(clippReg)
+			*clippReg=*(from.clippReg);
+		else
+			clippReg=new BRegion(*(from.clippReg));
+	}
+	
+	edelta=from.edelta;
+	
+	return *this;
+}
+
+LayerData::LayerData(void)
+{
+	coordOrigin.Set(0.0, 0.0);
+	viewcolor.SetColor(255,255,255,255);
+	
+	background=NULL;
+	overlay=NULL;
+	prevState=NULL;
+}
+
+LayerData::LayerData(const LayerData &data)
+{
+	*this=data;
+}
+
+LayerData::~LayerData(void)
+{
+	if (prevState)
+	{
+		delete prevState;
+		prevState=NULL;
+	}
+}
+
+LayerData &LayerData::operator=(const LayerData &from)
+{
+	// I'm not sure if the DrawData copy constructor will get called before this one is,
+	// so I'll just make sure the copy happens. :P
+	pensize=from.pensize;
+	highcolor=from.highcolor;
+	lowcolor=from.lowcolor;
+
+	patt=from.patt;
+	draw_mode=from.draw_mode;
+	
+	lineCap=from.lineCap;
+	lineJoin=from.lineJoin;
+	miterLimit=from.miterLimit;
+	
+	alphaSrcMode=from.alphaSrcMode;
+	alphaFncMode=from.alphaFncMode;
+
+	scale=from.scale;
+	fontAliasing=from.fontAliasing;
+	font=from.font;
+	
+	if(from.clippReg)
+	{
+		if(clippReg)
+			*clippReg=*(from.clippReg);
+		else
+			clippReg=new BRegion(*(from.clippReg));
+	}
+	
+	edelta=from.edelta;
+	
+	// Stuff specific to LayerData
+	coordOrigin=from.coordOrigin;;
+	viewcolor=from.viewcolor;
+	
+	background=from.background;
+	overlay=from.overlay;
+	
+	prevState=from.prevState;
+	
+	return *this;
+}