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| author | miklosh <miklosh@users.sourceforge.net> | 2006-10-01 14:12:04 +0000 |
|---|---|---|
| committer | miklosh <miklosh@users.sourceforge.net> | 2006-10-01 14:12:04 +0000 |
| commit | 953c17769a782a62e7d944516f9db6cae2c2fcd5 (patch) | |
| tree | db50db34532bf44429b441a7e6c5e3780437e087 /src | |
| parent | PNG output for Cairo renderer (diff) | |
| download | inkscape-953c17769a782a62e7d944516f9db6cae2c2fcd5.tar.gz inkscape-953c17769a782a62e7d944516f9db6cae2c2fcd5.zip | |
PNG output for Cairo renderer
(bzr r1741)
Diffstat (limited to 'src')
| -rw-r--r-- | src/extension/internal/cairo-png-out.cpp | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/src/extension/internal/cairo-png-out.cpp b/src/extension/internal/cairo-png-out.cpp new file mode 100644 index 000000000..34c4258df --- /dev/null +++ b/src/extension/internal/cairo-png-out.cpp @@ -0,0 +1,128 @@ +/*
+ * A quick hack to use the Cairo renderer to write out a file. This
+ * then makes 'save as...' PNG.
+ *
+ * Authors:
+ * Ted Gould <ted@gould.cx>
+ * Ulf Erikson <ulferikson@users.sf.net>
+ *
+ * Copyright (C) 2004-2006 Authors
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+#include "cairo-png-out.h"
+#include "cairo-render-context.h"
+#include "cairo-renderer.h"
+#include <print.h>
+#include "extension/system.h"
+#include "extension/print.h"
+#include "extension/db.h"
+#include "extension/output.h"
+#include "display/nr-arena.h"
+#include "display/nr-arena-item.h"
+
+#include <libnr/n-art-bpath.h>
+
+#include "display/curve.h"
+#include "display/canvas-bpath.h"
+#include "sp-item.h"
+#include "style.h"
+#include "sp-root.h"
+#include "sp-shape.h"
+
+#include "io/sys.h"
+
+namespace Inkscape {
+namespace Extension {
+namespace Internal {
+
+bool
+CairoRendererOutput::check (Inkscape::Extension::Extension * module)
+{
+ return TRUE;
+}
+
+static bool
+png_render_document_to_file(SPDocument *doc, gchar const *filename)
+{
+ CairoRenderer *renderer;
+ CairoRenderContext *ctx;
+
+ sp_document_ensure_up_to_date(doc);
+
+/* Start */
+ /* Create new arena */
+ SPItem *base = SP_ITEM(sp_document_root(doc));
+ NRArena *arena = NRArena::create();
+ unsigned dkey = sp_item_display_key_new(1);
+ NRArenaItem *root = sp_item_invoke_show(base, arena, dkey, SP_ITEM_SHOW_DISPLAY);
+
+ /* Create renderer and context */
+ renderer = new CairoRenderer();
+ ctx = renderer->createContext();
+
+ /* Render document */
+ bool ret = renderer->setupDocument(ctx, doc);
+ if (ret) {
+ renderer->renderItem(ctx, base);
+ ctx->saveAsPng(filename);
+ ret = ctx->finish();
+ }
+ renderer->destroyContext(ctx);
+
+ /* Release arena */
+ sp_item_invoke_hide(base, dkey);
+ nr_arena_item_unref(root);
+ nr_object_unref((NRObject *) arena);
+/* end */
+ delete renderer;
+
+ return ret;
+}
+
+
+/**
+ \brief This function calls the output module with the filename
+ \param mod unused
+ \param doc Document to be saved
+ \param uri Filename to save to (probably will end in .png)
+*/
+void
+CairoRendererOutput::save (Inkscape::Extension::Output *mod, SPDocument *doc, const gchar *uri)
+{
+ if (!png_render_document_to_file(doc, uri))
+ throw Inkscape::Extension::Output::save_failed();
+
+ return;
+}
+
+/**
+ \brief A function allocate a copy of this function.
+
+ This is the definition of Cairo PNG out. This function just
+ calls the extension system with the memory allocated XML that
+ describes the data.
+*/
+void
+CairoRendererOutput::init (void)
+{
+ Inkscape::Extension::build_from_mem(
+ "<inkscape-extension>\n"
+ "<name>Cairo PNG Output</name>\n"
+ "<id>org.inkscape.output.png.cairo</id>\n"
+ "<output>\n"
+ "<extension>.png</extension>\n"
+ "<mimetype>image/png</mimetype>\n"
+ "<filetypename>Cairo PNG (*.png)</filetypename>\n"
+ "<filetypetooltip>PNG File</filetypetooltip>\n"
+ "</output>\n"
+ "</inkscape-extension>", new CairoRendererOutput());
+
+ return;
+}
+
+} } } /* namespace Inkscape, Extension, Implementation */
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