graphicscontext.cpp

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	path.concat_path( arc3 );

	path.line_to( x1, y1 + cornerArcHeight/2.0 );

	agg::arc arc4(x1 + cornerArcWidth/2.0,
		y1 + cornerArcHeight/2.0,
		cornerArcWidth/2.0, cornerArcHeight/2.0,
		Math::degreesToRadians(180), Math::degreesToRadians(270));

	path.concat_path( arc4 );


	//agg::path_storage::const_iterator it = path.begin();
	for (size_t i=0;i<path.total_vertices();i++ ) {	
		double vert_x, vert_y;
		path.vertex( i, &vert_x, &vert_y );


		Point pt;
		pt.x_ = vert_x * (transform[Matrix2D::mei00]) +
							vert_y * (transform[Matrix2D::mei10]) +
								(transform[Matrix2D::mei20]);

		pt.y_ = vert_x * (transform[Matrix2D::mei01]) +
							vert_y * (transform[Matrix2D::mei11]) +
								(transform[Matrix2D::mei21]);

		pts.push_back( pt );
	}
}

void GraphicsContext::buildEllipse( double x1, double y1, double x2, double y2,
							std::vector<Point>& pts, const Matrix2D& transform )
{
	agg::path_storage path;
	agg::ellipse ellipseShape( x1 + ((x2-x1)/2.0), y1 + ((y2-y1)/2.0),
								abs(static_cast<long>(x2-x1)), abs(static_cast<long>(y2-y1)), 100 );
	path.concat_path( ellipseShape );

	for (size_t i=0;i<path.total_vertices();i++ ) {
		double vert_x, vert_y;
		path.vertex( i, &vert_x, &vert_y );


		Point pt;
		pt.x_ = vert_x * (transform[Matrix2D::mei00]) +
							vert_y * (transform[Matrix2D::mei10]) +
								(transform[Matrix2D::mei20]);

		pt.y_ = vert_x * (transform[Matrix2D::mei01]) +
							vert_y * (transform[Matrix2D::mei11]) +
								(transform[Matrix2D::mei21]);

		pts.push_back( pt );
	}

	pts.back() = pts[0];
}

int GraphicsContext::saveState()
{
	GraphicsState* newState = new GraphicsState(*stateCollection_.back());

	stateCollection_.push_back( newState );
	graphicsStateIndex_ = stateCollection_.size() - 1;

	currentGraphicsState_ = stateCollection_[graphicsStateIndex_];

	return graphicsStateIndex_;
}

void GraphicsContext::restoreState( int state )
{
	VCF_ASSERT( state < (int)stateCollection_.size() );
	VCF_ASSERT( state >= 0 );
	if ( (stateCollection_.size() - state) > 0 ) {
		for ( size_t i=state;i<stateCollection_.size();i++ ) {
			delete stateCollection_[i];
		}

		stateCollection_.erase( stateCollection_.begin() + state,
								stateCollection_.end() );
	}

	graphicsStateIndex_ = maxVal<>(0,(state - 1));
	currentGraphicsState_ = stateCollection_[graphicsStateIndex_];
}

bool GraphicsContext::isDefaultTransform()
{
	return (currentGraphicsState_->rotation_ == 0.0) &&
			(currentGraphicsState_->translateX_ == 0.0) &&
			(currentGraphicsState_->translateY_ == 0.0) &&
			(currentGraphicsState_->shearX_ == 0.0) &&
			(currentGraphicsState_->shearY_ == 0.0) &&
			(currentGraphicsState_->scaleX_ == 1.0) &&
			(currentGraphicsState_->scaleY_ == 1.0);
}

void GraphicsContext::makeDefaultTransform()
{
	currentGraphicsState_->rotation_ = 0.0;
	currentGraphicsState_->translateX_ = 0.0;
	currentGraphicsState_->translateY_ = 0.0;
	currentGraphicsState_->shearX_ = 0.0;
	currentGraphicsState_->shearY_ = 0.0;
	currentGraphicsState_->scaleX_ = 1.0;
	currentGraphicsState_->scaleY_ = 1.0;

	currentGraphicsState_->compositeMatrix();
}

double GraphicsContext::getRotation()
{
	return currentGraphicsState_->rotation_;
}

double GraphicsContext::getTranslationX()
{
	return currentGraphicsState_->translateX_;
}

double GraphicsContext::getTranslationY()
{
	return currentGraphicsState_->translateY_;
}

double GraphicsContext::getShearX()
{
	return currentGraphicsState_->shearX_;
}

double GraphicsContext::getShearY()
{
	return currentGraphicsState_->shearY_;
}

double GraphicsContext::getScaleX()
{
	return currentGraphicsState_->scaleX_;
}

double GraphicsContext::getScaleY()
{
	return currentGraphicsState_->scaleY_;
}

bool GraphicsContext::isAntiAliasingOn()
{
	return contextPeer_->isAntiAliasingOn();
}

void GraphicsContext::setAntiAliasingOn( bool antiAliasingOn )
{
	contextPeer_->setAntiAliasingOn( antiAliasingOn );
}


};	// namespace VCF


/**
*CVS Log info
*$Log$
*Revision 1.7  2006/04/07 02:35:41  ddiego
*initial checkin of merge from 0.6.9 dev branch.
*
*Revision 1.6.2.8  2006/03/04 02:35:48  ddiego
*upgraded agg from 2.2 to the latest 2.4 version.
*
*Revision 1.6.2.7  2006/03/01 04:34:57  ddiego
*fixed tab display to use themes api.
*
*Revision 1.6.2.6  2006/02/21 04:32:51  ddiego
*comitting moer changes to theme code, progress bars, sliders and tab pages.
*
*Revision 1.6.2.5  2005/11/27 23:55:45  ddiego
*more osx updates.
*
*Revision 1.6.2.4  2005/11/21 04:00:51  ddiego
*more osx updates.
*
*Revision 1.6.2.3  2005/11/10 02:02:39  ddiego
*updated the osx build so that it
*compiles again on xcode 1.5. this applies to the foundationkit and graphicskit.
*
*Revision 1.6.2.2  2005/10/17 01:36:34  ddiego
*some more under the hood image stuff. updated agg.
*
*Revision 1.6.2.1  2005/09/03 14:03:53  ddiego
*added a package manager to support package info instances, and
*fixed feature request 1278069 - Background color of the TableControl cells.
*
*Revision 1.6  2005/07/09 23:05:58  ddiego
*added missing gtk files
*
*Revision 1.5  2005/01/02 03:04:25  ddiego
*merged over some of the changes from the dev branch because they're important resoource loading bug fixes. Also fixes a few other bugs as well.
*
*Revision 1.4.2.3  2005/06/26 01:27:53  marcelloptr
*added images to a PushButton
*
*Revision 1.4.2.2  2005/04/25 00:11:59  ddiego
*added more advanced text support. fixed some memory leaks. fixed some other miscellaneous things as well.
*
*Revision 1.4.2.1  2004/12/19 04:05:03  ddiego
*made modifications to methods that return a handle type. Introduced
*a new typedef for handles, that is a pointer, as opposed to a 32bit int,
*which was causing a problem for 64bit compiles.
*
*Revision 1.4  2004/12/01 04:31:42  ddiego
*merged over devmain-0-6-6 code. Marcello did a kick ass job
*of fixing a nasty bug (1074768VCF application slows down modal dialogs.)
*that he found. Many, many thanks for this Marcello.
*
*Revision 1.3  2004/08/13 18:43:20  ddiego
*fixed missing roundrect functionality, and incorrect value in vc70/71 projects
*
*Revision 1.2.2.14  2004/11/07 19:32:20  marcelloptr
*more documentation
*
*Revision 1.2.2.13  2004/10/27 03:12:18  ddiego
*integrated chrisk changes
*
*Revision 1.2.2.12  2004/10/04 15:50:49  kiklop74
*Added explicit cast to avoid ambiquity on BCB6
*
*Revision 1.2.2.11  2004/09/09 03:09:26  marcelloptr
*minor change for style
*
*Revision 1.2.2.10  2004/09/06 04:40:43  ddiego
*added font rotation back in, this time with support for matching
*the graphic contexts current transform.
*
*Revision 1.2.2.9  2004/09/06 03:33:21  ddiego
*updated the graphic context code to support image transforms.
*
*Revision 1.2.2.8  2004/09/03 04:05:46  ddiego
*fixes to add matrix transform support for images.
*
*Revision 1.2.2.7  2004/09/01 03:50:39  ddiego
*fixed font drawing bug that tinkham pointed out.
*
*Revision 1.2.2.6  2004/08/31 21:12:07  ddiego
*graphice save and restore state
*
*Revision 1.2.2.5  2004/08/31 10:24:15  marcelloptr
*project changed postfix operator into prefix where not necessary so to eliminate agg warning
*
*Revision 1.2.2.4  2004/08/31 04:12:13  ddiego
*cleaned up the GraphicsContext class - made more pervasive use
*of transformation matrix. Added common print dialog class. Fleshed out
*printing example more.
*
*Revision 1.2.2.3  2004/08/26 01:44:40  ddiego
*fixed font pix size bug that handled non true type fonts poorly.
*
*Revision 1.2.2.2  2004/08/24 04:29:58  ddiego
*more printing work, still not yet integrated.
*
*Revision 1.2.2.1  2004/08/19 03:22:54  ddiego
*updates so new system tray code compiles
*
*Revision 1.3  2004/08/13 18:43:20  ddiego
*fixed missing roundrect functionality, and incorrect value in vc70/71 projects
*
*Revision 1.2  2004/08/07 02:49:17  ddiego
*merged in the devmain-0-6-5 branch to stable
*
*Revision 1.1.2.3  2004/07/09 03:39:30  ddiego
*merged in changes from the OSX branch for new theming API. Added
*support for controlling the use of locale translated strings in components.
*
*Revision 1.1.2.2.2.4  2004/06/27 18:19:16  ddiego
*more osx updates
*
*Revision 1.1.2.2.2.3  2004/06/20 00:36:11  ddiego
*finished the new theme API updates
*
*Revision 1.1.2.2.2.2  2004/06/16 05:18:56  ddiego
*further updates to OSX theme compliant drawing code
*
*Revision 1.1.2.2.2.1  2004/06/15 04:04:38  ddiego
*revamped osx theme drawing API
*
*Revision 1.1.2.2  2004/04/29 04:10:27  marcelloptr
*reformatting of source files: macros and csvlog and copyright sections
*
*Revision 1.1.2.1  2004/04/28 03:40:31  ddiego
*migration towards new directory structure
*
*Revision 1.23  2004/04/03 15:48:46  ddiego
*Merged over code from the 0-6-3 branch.
*
*Revision 1.22.2.1  2004/02/21 03:27:09  ddiego
*updates for OSX porting
*
*Revision 1.22  2003/12/18 05:16:01  ddiego
*merge from devmain-0-6-2 branch into the stable branch
*
*Revision 1.21.2.1  2003/10/28 04:06:12  ddiego
*updated the GraphicsContext and ContextPeer classes to support
*slider control drawing. adjusted the Slider control accordingly.
*Also changed some of the GraphicsKit headers to conform to the
*current header style.
*
*Revision 1.21  2003/08/09 02:56:45  ddiego
*merge over from the devmain-0-6-1 branch
*Changes
*Features:
*-Added additional implementation to better support the MVC architecture in
*the VCF
*
*-Added a Document/View architecure that is similar to MFC's or NextSteps's
*Doc/View architectures
*
*-Integrated the Anti Grain Graphics library into the GraphicsKit. There is
*now basic support for it in terms of drawing vector shapes
*(fills and strokes). Image support will come in the next release
*
*-Added several documented graphics tutorials
*
*Bugfixes:
*
*[ 775744 ] wrong buttons on a dialog
*[ 585239 ] Painting weirdness in a modal dialog ?
*[ 585238 ] Modal dialog which makes a modal Dialog
*[ 509004 ] Opening a modal Dialog causes flicker
*[ 524878 ] onDropped not called for MLTcontrol
*
*Plus an issue with some focus and getting the right popup window to activate
*has also been fixed
*
*Revision 1.20.2.8  2003/08/08 03:21:36  ddiego
*got rid of some miscellaneous graphics files
*
*Revision 1.20.2.7  2003/07/28 23:49:58  ddiego
*check in of the weekend's work from July 25
*learned how to use agg image renedering, now have to integrate it into the
*GraphicsKit - alos enabled setting a viewable bounds that sets the agg cliprect
*as well, useful for later optimizations
*
*Revision 1.20.2.6  2003/07/24 04:10:44  ddiego
*added fixes for the following tasks:
*Task #82279 ApplicationKit: add static methods to singleton objects
*Task #82277 FoundationKit: add static methods to singleton objects
*this required a bunch of changes in terms of getting rid of older style code
*
*Revision 1.20.2.5  2003/07/07 03:52:08  ddiego
*added further osx porting code, primarily to the GraphicsKit - hey we can
*draw lines ! Woot!
*
*Revision 1.20.2.4  2003/06/20 04:36:59  ddiego
*further AGG integration
*moved files over to renamed directories
*
*Revision 1.20.2.3  2003/06/17 03:54:25  ddiego
*further agg integration - took out the getImage/putImage from GraphicsContext -
*this was too slow. now have an alternate solution that seems to work OK
*
*Revision 1.20.2.2  2003/06/16 03:09:39  ddiego
*beginning to add support for AGG into the VCF GraphicsKit
*added some missing files
*added some changes to the new version of xmake
*
*Revision 1.20.2.1  2003/06/05 03:48:54  ddiego
*added a way to get part of a graphics context into an image - no
*implementation yet.
*
*Revision 1.20  2003/05/17 20:37:21  ddiego
*this is the checkin for the 0.6.1 release - represents the merge over from
*the devmain-0-6-0 branch plus a few minor bug fixes
*
*Revision 1.19.2.5  2003/05/14 03:04:29  ddiego
*fixed some bugs caused by some of the changes in the graphics kit that I made
*yesterday. All is well now.
*
*Revision 1.19.2.4  2003/05/13 03:57:13  ddiego
*cleaned up the GraphicsKit, got rid of some old crap files, cleaned
*up the ContextPeer so that tehre are fewer methods to implement, and
*moved the repetitive fillPath and strokePath code that was copied into
*all the context peers back into the GraphicsContext where it belongs
*
*Revision 1.19.2.3  2003/04/17 04:29:50  ddiego
*updated scintilla, added gtk support for the application kit, with stubs
*for the basic peers.
*
*Revision 1.19.2.2  2003/03/23 03:23:55  marcelloptr
*3 empty lines at the end of the files
*
*Revision 1.19.2.1  2003/03/12 03:12:01  ddiego
*switched all member variable that used the "m_"<name> prefix to
* <name>"_" suffix nameing standard.
*Also changed all vcf builder files to accomadate this.
*Changes were made to the Stream classes to NOT multiple inheritance and to
*be a little more correct. Changes include breaking the FileStream into two
*distinct classes, one for input and one for output.
*
*Revision 1.19  2003/02/26 04:30:46  ddiego
*merge of code in the devmain-0-5-9 branch into the current tree.
*most additions are in the area of the current linux port, but the major
*addition to this release is the addition of a Condition class (currently
*still under development) and the change over to using the Delegate class
*exclusively from the older event handler macros.
*
*Revision 1.18.2.4  2003/02/20 02:46:02  ddiego
*added in the base files for supporting a GTK peer implementation. Core parts
*of the GTKContext work (basic line primitives), and working on the GTKImage
*class.
*
*Revision 1.18.2.3  2002/12/31 07:02:17  ddiego
*trying to track issues with parenting in X. Made some fixes in the Color class
*and the ContextPeer class to work in gcc/X
*
*Revision 1.18.2.2  2002/12/28 21:51:19  marcelloptr
*Fixes and improvements for WM_COPYDATA, Point, Rect, Size, GraphicsContext and StringUtils
*
*Revision 1.18.2.1  2002/12/27 23:04:47  marcelloptr
*Improved macros for automatic import/export of libraries. - Warning fixes. - Other Minor Changes.
*
*Revision 1.18  2002/11/18 00:46:09  ddiego
*this is the merge over of all the bug fixes and features (mostly
*VCF Builder stuff) from the devmain-0-5-8 branch
*
*Revision 1.17.10.2  2002/09/30 21:08:18  ddiego
*piddling stuff
*
*Revision 1.17.10.1  2002/09/27 23:38:35  ddiego
*added support for geting various layout information
*added support for drawing various graphics UI primitives like scroll buttons
*tabs, tab pages, etc, partially to have this support in place for use
*in MacOSX.
*Also added scrolling buttons to TabbedPages, this fixes task 56652 in the
*ApplicationKit list
*
*Revision 1.17  2002/05/09 03:10:44  ddiego
*merged over code from development branch devmain-0-5-1a into the main CVS trunk
*
*Revision 1.16.4.1  2002/04/03 19:37:17  zzack
*include style changed
*
*Revision 1.16  2002/01/24 01:46:49  ddiego
*added a cvs "log" comment to the top of all files in vcf/src and vcf/include
*to facilitate change tracking
*
*/