From 217797d63b2d3b1c9a7a0511af1bbf3d99f0d482 Mon Sep 17 00:00:00 2001
From: Carlos Garcia Campos <carlosgc@gnome.org>
Date: Wed, 13 Jun 2007 08:54:53 +0000
Subject: Use cairo image surfaces instead of GDK pixbufs for drawing pages and

2007-06-13  Carlos Garcia Campos  <carlosgc@gnome.org>
	* backend/dvi/dvi-document.c: (dvi_document_render),
	(dvi_document_render_pixbuf), (dvi_document_document_iface_init):
	* backend/impress/impress-document.c:
	(imp_render_get_from_drawable), (impress_document_render_pixbuf),
	(impress_document_render), (impress_document_document_iface_init),
	(impress_document_thumbnails_get_thumbnail):
	* backend/djvu/djvu-document-private.h:
	* backend/djvu/djvu-document.c: (djvu_document_render),
	(djvu_document_finalize), (djvu_document_document_iface_init),
	(djvu_document_thumbnails_get_thumbnail), (djvu_document_init):
	* backend/tiff/tiff-document.c: (tiff_document_render),
	(tiff_document_render_pixbuf),
	(tiff_document_document_iface_init):
	* backend/pdf/ev-poppler.cc: (pdf_document_render),
	(pdf_document_render_pixbuf), (pdf_document_document_iface_init),
	(pdf_selection_render_selection):
	* backend/comics/comics-document.c:
	(comics_document_render_pixbuf), (comics_document_render),
	(comics_document_document_iface_init):
	* backend/pixbuf/pixbuf-document.c: (pixbuf_document_render),
	(pixbuf_document_document_iface_init):
	* libdocument/ev-document-misc.[ch]:
	(ev_document_misc_surface_from_pixbuf),
	(ev_document_misc_surface_rotate_and_scale):
	* libdocument/ev-document.[ch]: (ev_document_render):
	* libdocument/ev-selection.[ch]: (ev_selection_render_selection):
	* shell/ev-pixbuf-cache.[ch]: (dispose_cache_job_info),
	(move_one_job), (copy_job_to_job_info), (add_job_if_needed),
	(ev_pixbuf_cache_get_surface), (new_selection_surface_needed),
	(clear_selection_if_needed), (ev_pixbuf_cache_style_changed),
	(ev_pixbuf_cache_get_selection_surface), (clear_job_selection):
	* shell/ev-jobs.[ch]: (ev_job_render_dispose),
	(render_finished_cb), (ev_job_render_run):
	* shell/ev-view.c: (draw_loading_text), (draw_one_page),
	(merge_selection_region):
	Use cairo image surfaces instead of GDK pixbufs for drawing pages
	and selections.

svn path=/trunk/; revision=2499
---
(limited to 'backend/dvi')

diff --git a/backend/dvi/dvi-document.c b/backend/dvi/dvi-document.c
index 9abdca7..445c1e0 100644
--- a/backend/dvi/dvi-document.c
+++ b/backend/dvi/dvi-document.c
@@ -152,15 +152,14 @@ dvi_document_get_page_size (EvDocument   *document,
 	return;
 }
 
-static GdkPixbuf *
-dvi_document_render_pixbuf (EvDocument  *document,
-			    EvRenderContext *rc)
+static cairo_surface_t *
+dvi_document_render (EvDocument      *document,
+		     EvRenderContext *rc)
 {
 	GdkPixbuf *pixbuf;
-	GdkPixbuf *rotated_pixbuf;
-
+	cairo_surface_t *surface;
+	cairo_surface_t *rotated_surface;
 	DviDocument *dvi_document = DVI_DOCUMENT(document);
-
 	gint required_width, required_height;
 	gint proposed_width, proposed_height;
 	gint xmargin = 0, ymargin = 0;
@@ -177,8 +176,8 @@ dvi_document_render_pixbuf (EvDocument  *document,
 			 (int)((dvi_document->params->hshrink - 1) / rc->scale) + 1,
 			 (int)((dvi_document->params->vshrink - 1) / rc->scale) + 1);
 
-	required_width = dvi_document->base_width * rc->scale;
-	required_height = dvi_document->base_height * rc->scale;
+	required_width = dvi_document->base_width * rc->scale + 0.5;
+	required_height = dvi_document->base_height * rc->scale + 0.5;
 	proposed_width = dvi_document->context->dvi_page_w * dvi_document->context->params.conv;
 	proposed_height = dvi_document->context->dvi_page_h * dvi_document->context->params.vconv;
 	
@@ -195,10 +194,17 @@ dvi_document_render_pixbuf (EvDocument  *document,
 
 	g_mutex_unlock (dvi_context_mutex);
 
-	rotated_pixbuf = gdk_pixbuf_rotate_simple (pixbuf, 360 - rc->rotation);
+	/* FIXME: we should write a mdvi device based on cairo */
+	surface = ev_document_misc_surface_from_pixbuf (pixbuf);
 	g_object_unref (pixbuf);
 
-	return rotated_pixbuf;
+	rotated_surface = ev_document_misc_surface_rotate_and_scale (surface,
+								     required_width,
+								     required_height,
+								     rc->rotation);
+	cairo_surface_destroy (surface);
+
+	return rotated_surface;
 }
 
 static void
@@ -260,7 +266,7 @@ dvi_document_document_iface_init (EvDocumentIface *iface)
 	iface->can_get_text = dvi_document_can_get_text;
 	iface->get_n_pages = dvi_document_get_n_pages;
 	iface->get_page_size = dvi_document_get_page_size;
-	iface->render_pixbuf = dvi_document_render_pixbuf;
+	iface->render = dvi_document_render;
 	iface->get_info = dvi_document_get_info;
 }
 
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