Changed every occurence in the code of the "inset" term to "title block".

git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/branches/0.3@1132 bfdf4180-ca20-0410-9c96-a3a8aa849046

sources/titleblocktemplaterenderer.cpp

@@ -0,0 +1,96 @@
+#include "titleblocktemplaterenderer.h"
+#include "titleblocktemplate.h"
+
+/**
+	Constructor
+	@param parnet Parent QObject of this renderer
+*/
+TitleBlockTemplateRenderer::TitleBlockTemplateRenderer(QObject *parent) :
+	QObject(parent),
+	titleblock_template_(0),
+	last_known_titleblock_width_(-1)
+{
+}
+
+/**
+	Destructor
+*/
+TitleBlockTemplateRenderer::~TitleBlockTemplateRenderer() {
+}
+
+/**
+	@return the titleblock template used for the rendering
+*/
+const TitleBlockTemplate *TitleBlockTemplateRenderer::titleBlockTemplate() const {
+	return(titleblock_template_);
+}
+
+/**
+	@param titleblock_template TitleBlock template to render.
+*/
+void TitleBlockTemplateRenderer::setTitleBlockTemplate(const TitleBlockTemplate *titleblock_template) {
+	if (titleblock_template != titleblock_template_) {
+		titleblock_template_ = titleblock_template;
+		invalidateRenderedTemplate();
+	}
+}
+
+/**
+	@param context Diagram Context to use when rendering the titleblock
+*/
+void TitleBlockTemplateRenderer::setContext(const DiagramContext &context) {
+	context_ = context;
+	invalidateRenderedTemplate();
+}
+
+/**
+	@return the height of the rendered template, or -1 if no template has been
+	set for this renderer.
+	@see TitleBlockTemplate::height()
+*/
+int TitleBlockTemplateRenderer::height() const {
+	if (!titleblock_template_) return(-1);
+	return(titleblock_template_ -> height());
+}
+
+/**
+	Render the titleblock.
+	@param provided_painter QPainter to use to render the titleblock.
+	@param titleblock_width The total width of the titleblock to render
+*/
+void TitleBlockTemplateRenderer::render(QPainter *provided_painter, int titleblock_width) {
+	if (!titleblock_template_) return;
+	
+	// Do we really need to calculate all this again?
+	if (titleblock_width != last_known_titleblock_width_ || rendered_template_.isNull()) {
+		renderToQPicture(titleblock_width);
+	}
+	
+	provided_painter -> save();
+	rendered_template_.play(provided_painter);
+	provided_painter -> restore();
+}
+
+/**
+	Renders the titleblock to the internal QPicture
+	@param titleblock_width Width of the titleblock to render
+*/
+void TitleBlockTemplateRenderer::renderToQPicture(int titleblock_width) {
+	if (!titleblock_template_) return;
+	
+	// we render the template on our internal QPicture
+	QPainter painter(&rendered_template_);
+	
+	titleblock_template_ -> render(painter, context_, titleblock_width);
+	
+	// memorize the last known width
+	last_known_titleblock_width_ = titleblock_width;
+}
+
+/**
+	Invalidates the previous rendering of the template by resetting the internal
+	QPicture.
+*/
+void TitleBlockTemplateRenderer::invalidateRenderedTemplate() {
+	rendered_template_ = QPicture();
+}