Move EvView specific code to a libeviview library so that it can be

2009-01-18  Carlos Garcia Campos  <carlosgc@gnome.org>

	* configure.ac:
	* Makefile.am:
	* libdocument/Makefile.am:
	* libview/Makefile.am:
	* libview/ev-job-scheduler.[ch]:
	* libview/ev-jobs.[ch]:
	* libview/ev-page-cache.[ch]:
	* libview/ev-pixbuf-cache.[ch]:
	* libview/ev-timeline.[ch]:
	* libview/ev-transition-animation.[ch]:
	* libview/ev-view-accessible.[ch]:
	* libview/ev-view-marshal.list:
	* libview/ev-view.[ch]:
	* shell/Makefile.am:

	Move EvView specific code to a libeviview library so that it can
	be embbeded in other applications. Based on patches by Tomeu
	Vizoso. Fixes bug #567751.

svn path=/trunk/; revision=3348

1 files changed, 0 insertions, 714 deletions

diff --git a/shell/ev-page-cache.c b/shell/ev-page-cache.c
deleted file mode 100644
index a8639ef..0000000
--- a/shell/ev-page-cache.c
+++ /dev/null
@@ -1,714 +0,0 @@
-#include <config.h>
-#include "ev-page-cache.h"
-#include "ev-document-thumbnails.h"
-#include "ev-page.h"
-#include <stdlib.h>
-#include <string.h>
-
-#define THUMBNAIL_WIDTH 100
-
-typedef struct _EvPageCacheInfo
-{
-	double width;
-	double height;
-} EvPageCacheInfo;
-
-typedef struct _EvPageThumbsInfo
-{
-	gint width;
-	gint height;
-} EvPageThumbsInfo;
-
-struct _EvPageCache
-{
-	GObject parent;
-
-	gint current_page;
-	int n_pages;
-	char *title;
-	char **page_labels;
-	
-	gint max_label_chars;
-	gboolean has_labels;
-	gboolean uniform;
-	gboolean dual_even_left;
-	
-	double uniform_width;
-	double uniform_height;
-
-	double  max_width;
-	double  max_height;
-
-	double* height_to_page;
-	double* dual_height_to_page;
-
-	int rotation;
-
-	EvPageCacheInfo *size_cache;
-	EvDocumentInfo *page_info;
-
-	/* Thumbnail dimensions */
-	gboolean thumbs_uniform;
-	gint thumbs_uniform_width;
-	gint thumbs_uniform_height;
-	gint thumbs_max_width;
-	gint thumbs_max_height;
-	EvPageThumbsInfo *thumbs_size_cache;
-};
-
-struct _EvPageCacheClass
-{
-	GObjectClass parent_class;
-
-	void (* page_changed) (EvPageCache *page_cache, gint page);
-	void (* history_changed) (EvPageCache *page_cache, gint page);
-};
-
-enum
-{
-	PAGE_CHANGED,
-	HISTORY_CHANGED,
-	N_SIGNALS,
-};
-
-static guint signals[N_SIGNALS] = {0, };
-
-static void ev_page_cache_init       (EvPageCache      *page_cache);
-static void ev_page_cache_class_init (EvPageCacheClass *page_cache);
-static void ev_page_cache_finalize   (GObject *object);
-
-G_DEFINE_TYPE (EvPageCache, ev_page_cache, G_TYPE_OBJECT)
-
-static void
-ev_page_cache_init (EvPageCache *page_cache)
-{
-	page_cache->current_page = -1;
-	page_cache->max_label_chars = 0;
-}
-
-static void
-ev_page_cache_class_init (EvPageCacheClass *class)
-{
-	GObjectClass *object_class;
-
-	object_class = G_OBJECT_CLASS (class);
-
-	object_class->finalize = ev_page_cache_finalize;
-
-	signals [PAGE_CHANGED] =
-		g_signal_new ("page-changed",
-			      EV_TYPE_PAGE_CACHE,
-			      G_SIGNAL_RUN_LAST,
-			      G_STRUCT_OFFSET (EvPageCacheClass, page_changed),
-			      NULL, NULL,
-			      g_cclosure_marshal_VOID__INT,
-			      G_TYPE_NONE, 1,
-			      G_TYPE_INT);
-
-	signals [HISTORY_CHANGED] =
-		g_signal_new ("history-changed",
-			      EV_TYPE_PAGE_CACHE,
-			      G_SIGNAL_RUN_LAST,
-			      G_STRUCT_OFFSET (EvPageCacheClass, history_changed),
-			      NULL, NULL,
-			      g_cclosure_marshal_VOID__INT,
-			      G_TYPE_NONE, 1,
-			      G_TYPE_INT);
-
-}
-
-static void
-ev_page_cache_finalize (GObject *object)
-{
-	EvPageCache *page_cache;
-
-	page_cache = EV_PAGE_CACHE (object);
-
-	if (page_cache->title) {
-		g_free (page_cache->title);
-		page_cache->title = NULL;
-	}
-
-	if (page_cache->size_cache) {
-		g_free (page_cache->size_cache);
-		page_cache->size_cache = NULL;
-	}
-
-	if (page_cache->thumbs_size_cache) {
-		g_free (page_cache->thumbs_size_cache);
-		page_cache->thumbs_size_cache = NULL;
-	}
-
-	if (page_cache->height_to_page) {
-		g_free (page_cache->height_to_page);
-		page_cache->height_to_page = NULL;
-	}
-
-	if (page_cache->dual_height_to_page) {
-		g_free (page_cache->dual_height_to_page);
-		page_cache->dual_height_to_page = NULL;
-	}
-
-	if (page_cache->page_labels) {
-		gint i;
-
-		for (i = 0; i < page_cache->n_pages; i++) {
-			if (page_cache->page_labels[i])
-				g_free (page_cache->page_labels[i]);
-		}
-		g_free (page_cache->page_labels);
-		page_cache->page_labels = NULL;
-	}
-
-	if (page_cache->page_info) {
-		ev_document_info_free (page_cache->page_info);
-		page_cache->page_info = NULL;
-	}
-
-	G_OBJECT_CLASS (ev_page_cache_parent_class)->finalize (object);
-}
-
-static void
-build_height_to_page (EvPageCache *page_cache)
-{
-	gboolean swap;
-	int i;
-	double uniform_height, page_height, next_page_height;
-	double saved_height;
-
-	swap = (page_cache->rotation == 90 ||
-		page_cache->rotation == 270);
-
-	g_free (page_cache->height_to_page);
-	g_free (page_cache->dual_height_to_page);
-
-	page_cache->height_to_page = g_new0(double, page_cache->n_pages + 1);
-	page_cache->dual_height_to_page = g_new0(double, page_cache->n_pages + 2);
-	
-	saved_height = 0;
-	for (i = 0; i <= page_cache->n_pages; i++) {
-		if (page_cache->uniform) {
-			if (!swap) {
-				uniform_height = page_cache->uniform_height;
-			} else {
-				uniform_height = page_cache->uniform_width;
-			}
-			page_cache->height_to_page [i] = i * uniform_height;
-		} else {
-			if (i < page_cache->n_pages) {
-				if (!swap) {
-					page_height = page_cache->size_cache [i].height;
-				} else {
-					page_height = page_cache->size_cache [i].width;
-				}
-			} else {
-				page_height = 0;
-			}
-			page_cache->height_to_page [i] = saved_height;
-			saved_height += page_height;
-		}
-	}
-
-	if (page_cache->dual_even_left && !page_cache->uniform) {
-		if (!swap) {
-			saved_height = page_cache->size_cache [0].height;
-		} else {
-			saved_height = page_cache->size_cache [0].width;
-		}
-	} else {
-		saved_height = 0;
-	}
-	for (i = page_cache->dual_even_left; i < page_cache->n_pages + 2; i += 2) {
-    		if (page_cache->uniform) {
-			if (!swap) {
-				uniform_height = page_cache->uniform_height;
-			} else {
-				uniform_height = page_cache->uniform_width;
-			}
-			page_cache->dual_height_to_page [i] = ((i + page_cache->dual_even_left) / 2) * uniform_height;
-			if (i + 1 < page_cache->n_pages + 2)
-				page_cache->dual_height_to_page [i + 1] = ((i + page_cache->dual_even_left) / 2) * uniform_height;
-		} else {
-			if (i + 1 < page_cache->n_pages) {
-				if (!swap) {
-					next_page_height = page_cache->size_cache [i + 1].height;
-				} else {
-					next_page_height = page_cache->size_cache [i + 1].width;
-				}
-			} else {
-				next_page_height = 0;
-			}
-			if (i < page_cache->n_pages) {
-				if (!swap) {
-					page_height = page_cache->size_cache [i].height;
-				} else {
-					page_height = page_cache->size_cache [i].width;
-				}
-			} else {
-				page_height = 0;
-			}
-			if (i + 1 < page_cache->n_pages + 2) {
-				page_cache->dual_height_to_page [i] = saved_height;
-				page_cache->dual_height_to_page [i + 1] = saved_height;
-				saved_height += MAX(page_height, next_page_height);
-			} else {
-				page_cache->dual_height_to_page [i] = saved_height;
-			}
-		}
-	}
-}
-
-EvPageCache *
-ev_page_cache_new (EvDocument *document)
-{
-	EvPageCache *page_cache;
-	EvPageCacheInfo *info;
-	EvPageThumbsInfo *thumb_info;
-	EvRenderContext *rc = NULL;
-	gboolean has_thumbs;
-	gint i;
-
-	page_cache = (EvPageCache *) g_object_new (EV_TYPE_PAGE_CACHE, NULL);
-
-	ev_document_doc_mutex_lock ();
-
-	/* We read page information out of the document */
-
-	/* Assume all pages are the same size until proven otherwise */
-	page_cache->uniform = TRUE;
-	page_cache->has_labels = FALSE;
-	page_cache->n_pages = ev_document_get_n_pages (document);
-	page_cache->dual_even_left = (page_cache->n_pages > 2);
-	page_cache->page_labels = g_new0 (char *, page_cache->n_pages);
-	page_cache->max_width = 0;
-	page_cache->max_height = 0;
-	page_cache->page_info = ev_document_get_info (document);
-	page_cache->thumbs_uniform = TRUE;
-
-	if (page_cache->page_info->fields_mask & EV_DOCUMENT_INFO_TITLE) {
-		page_cache->title = g_strdup (page_cache->page_info->title);
-	} else {
-		page_cache->title = NULL;
-	}
-
-	has_thumbs = EV_IS_DOCUMENT_THUMBNAILS (document);
-	
-	for (i = 0; i < page_cache->n_pages; i++) {
-		EvPage *page;
-		double  page_width = 0;
-		double  page_height = 0;
-		gint    thumb_width = 0;
-		gint    thumb_height = 0;
-
-		page = ev_document_get_page (document, i);
-		
-		ev_document_get_page_size (document, page, &page_width, &page_height);
-
-	    	page_cache->page_labels[i] = ev_document_get_page_label (document, page);
-		
-		if (page_cache->page_labels[i] != NULL) {
-		
-			page_cache->max_label_chars = MAX (page_cache->max_label_chars, 
-							   g_utf8_strlen (page_cache->page_labels[i], 256));
-			if (!page_cache->has_labels) {
-				gchar *expected_label;
-			
-				expected_label = g_strdup_printf ("%d", i + 1);
-				if (strcmp (expected_label, page_cache->page_labels[i]))  
-					page_cache->has_labels = TRUE;
-				g_free (expected_label);
-			}
-		}
-
-		if (page_width > page_cache->max_width) {
-			page_cache->max_width = page_width;
-		}
-
-		if (page_height > page_cache->max_height) {
-			page_cache->max_height = page_height;
-		}
-			
-		if (i == 0) {
-			page_cache->uniform_width = page_width;
-			page_cache->uniform_height = page_height;
-		} else if (page_cache->uniform &&
-			   (page_cache->uniform_width != page_width ||
-			    page_cache->uniform_height != page_height)) {
-			/* It's a different page size.  Backfill the array. */
-			int j;
-
-			page_cache->size_cache = g_new0 (EvPageCacheInfo, page_cache->n_pages);
-
-			for (j = 0; j < i; j++) {
-				info = &(page_cache->size_cache [j]);
-				info->width = page_cache->uniform_width;
-				info->height = page_cache->uniform_height;
-			}
-			page_cache->uniform = FALSE;
-
-		}
-
-		if (! page_cache->uniform) {
-			info = &(page_cache->size_cache [i]);
-
-			info->width = page_width;
-			info->height = page_height;
-		}
-
-		if (!has_thumbs) {
-			g_object_unref (page);
-			continue;
-		}
-
-		if (!rc) {
-			rc = ev_render_context_new (page, 0, (gdouble)THUMBNAIL_WIDTH / page_width);
-		} else {
-			ev_render_context_set_page (rc, page);
-			ev_render_context_set_scale (rc, (gdouble)THUMBNAIL_WIDTH / page_width);
-		}
-
-		ev_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (document),
-						       rc, &thumb_width, &thumb_height);
-		
-		if (thumb_width > page_cache->thumbs_max_width) {
-			page_cache->thumbs_max_width = thumb_width;
-		}
-
-		if (thumb_height > page_cache->thumbs_max_height) {
-			page_cache->thumbs_max_height = thumb_height;
-		}
-			
-		if (i == 0) {
-			page_cache->thumbs_uniform_width = thumb_width;
-			page_cache->thumbs_uniform_height = thumb_height;
-		} else if (page_cache->thumbs_uniform &&
-			   (page_cache->thumbs_uniform_width != thumb_width ||
-			    page_cache->thumbs_uniform_height != thumb_height)) {
-			/* It's a different thumbnail size.  Backfill the array. */
-			int j;
-
-			page_cache->thumbs_size_cache = g_new0 (EvPageThumbsInfo, page_cache->n_pages);
-
-			for (j = 0; j < i; j++) {
-				thumb_info = &(page_cache->thumbs_size_cache [j]);
-				thumb_info->width = page_cache->thumbs_uniform_width;
-				thumb_info->height = page_cache->thumbs_uniform_height;
-			}
-			page_cache->thumbs_uniform = FALSE;
-		}
-
-		if (! page_cache->thumbs_uniform) {
-			thumb_info = &(page_cache->thumbs_size_cache [i]);
-
-			thumb_info->width = thumb_width;
-			thumb_info->height = thumb_height;
-		}
-
-		g_object_unref (page);
-	}
-
-	if (rc) {
-		g_object_unref (rc);
-	}
-
-	build_height_to_page (page_cache);
-
-	/* make some sanity check assertions */
-	if (! page_cache->uniform)
-		g_assert (page_cache->size_cache != NULL);
-	if (page_cache->uniform && page_cache->n_pages > 0)
-		g_assert (page_cache->uniform_width > 0 && page_cache->uniform_height > 0);
-
-	ev_document_doc_mutex_unlock ();
-
-	if (page_cache->n_pages > 0)
-		ev_page_cache_set_current_page (page_cache, 0);
-
-	return page_cache;
-}
-
-gint
-ev_page_cache_get_n_pages (EvPageCache *page_cache)
-{
-	g_return_val_if_fail (EV_IS_PAGE_CACHE (page_cache), 0);
-
-	return page_cache->n_pages;
-}
-
-gint
-ev_page_cache_get_current_page (EvPageCache *page_cache)
-{
-	g_return_val_if_fail (EV_IS_PAGE_CACHE (page_cache), 0);
-
-	return page_cache->current_page;
-}
-
-void
-ev_page_cache_set_current_page (EvPageCache *page_cache,
-				int          page)
-{
-	g_return_if_fail (EV_IS_PAGE_CACHE (page_cache));
-	g_return_if_fail (page >= 0 || page < page_cache->n_pages);
-
-	if (page == page_cache->current_page)
-		return;
-
-	page_cache->current_page = page;
-	g_signal_emit (page_cache, signals[PAGE_CHANGED], 0, page);
-}
-
-void
-ev_page_cache_set_current_page_history (EvPageCache *page_cache,
-					int          page)
-{
-	if (abs (page - page_cache->current_page) > 1)
-		g_signal_emit (page_cache, signals [HISTORY_CHANGED], 0, page);
-	
-	ev_page_cache_set_current_page (page_cache, page);
-}
-
-gboolean
-ev_page_cache_set_page_label (EvPageCache *page_cache,
-			      const char  *page_label)
-{
-	gint i, page;
-	long value;
-	char *endptr = NULL;
-	
-	g_return_val_if_fail (EV_IS_PAGE_CACHE (page_cache), FALSE);
-	g_return_val_if_fail (page_label != NULL, FALSE);
-
-	/* First, look for a literal label match */
-	for (i = 0; i < page_cache->n_pages; i ++) {
-		if (page_cache->page_labels[i] != NULL &&
-		    ! strcmp (page_label, page_cache->page_labels[i])) {
-			ev_page_cache_set_current_page (page_cache, i);
-			return TRUE;
-		}
-	}
-
-	/* Second, look for a match with case insensitively */
-	for (i = 0; i < page_cache->n_pages; i++) {
-		if (page_cache->page_labels[i] != NULL &&
-		    ! strcasecmp (page_label, page_cache->page_labels[i])) {
-			ev_page_cache_set_current_page (page_cache, i);
-			return TRUE;
-		}
-	}
-
-	/* Next, parse the label, and see if the number fits */
-	value = strtol (page_label, &endptr, 10);
-	if (endptr[0] == '\0') {
-		/* Page number is an integer */
-		page = MIN (G_MAXINT, value);
-
-		/* convert from a page label to a page offset */
-		page --;
-		if (page >= 0 &&
-		    page < page_cache->n_pages) {
-			ev_page_cache_set_current_page (page_cache, page);
-			return TRUE;
-		}
-	}
-
-	return FALSE;
-}
-
-const char *
-ev_page_cache_get_title (EvPageCache *page_cache)
-{
-	g_return_val_if_fail (EV_IS_PAGE_CACHE (page_cache), NULL);
-
-	return page_cache->title;
-}
-
-void
-ev_page_cache_get_size (EvPageCache  *page_cache,
-			gint          page,
-			gint          rotation,
-			gfloat        scale,
-			gint         *width,
-			gint         *height)
-{
-	double w, h;
-
-	g_return_if_fail (EV_IS_PAGE_CACHE (page_cache));
-	g_return_if_fail (page >= 0 && page < page_cache->n_pages);
-
-	if (page_cache->uniform) {
-		w = page_cache->uniform_width;
-		h = page_cache->uniform_height;
-	} else {
-		EvPageCacheInfo *info;
-
-		info = &(page_cache->size_cache [page]);
-		
-		w = info->width;
-		h = info->height;
-	}
-
-	w = w * scale + 0.5;
-	h = h * scale + 0.5;
-
-	if (rotation == 0 || rotation == 180) {
-		if (width) *width = (int)w;
-		if (height) *height = (int)h;
-	} else {
-		if (width) *width = (int)h;
-		if (height) *height = (int)w;
-	}
-}
-
-void
-ev_page_cache_get_max_width (EvPageCache   *page_cache,
-			     gint	    rotation,
-			     gfloat         scale,
-			     gint          *width)
-{
-	g_return_if_fail (EV_IS_PAGE_CACHE (page_cache));
-
-	if (width) {
-		if (rotation == 0 || rotation == 180) {
-			*width = page_cache->max_width * scale;
-		} else {
-			*width = page_cache->max_height * scale;
-		}
-	}
-}
-
-void
-ev_page_cache_get_max_height (EvPageCache   *page_cache,
-			      gint           rotation,
-			      gfloat         scale,
-			      gint          *height)
-{
-	g_return_if_fail (EV_IS_PAGE_CACHE (page_cache));
-
-	if (height) {
-		if (rotation == 0 || rotation == 180) {
-			*height = page_cache->max_height * scale;
-		} else {
-			*height = page_cache->max_width * scale;
-		}
-	}
-}
-
-void    
-ev_page_cache_get_height_to_page (EvPageCache   *page_cache,
-				  gint           page,
-				  gint           rotation,
-				  gfloat         scale,
-				  gint          *height,
-				  gint 	        *dual_height)
-{
-	g_return_if_fail (EV_IS_PAGE_CACHE (page_cache));
-	g_return_if_fail (page >= 0);
-	g_return_if_fail (!height || page <= page_cache->n_pages);
-	g_return_if_fail (!dual_height || page <= page_cache->n_pages + 1);
-
-	if (page_cache->rotation != rotation) {
-		page_cache->rotation = rotation;
-		build_height_to_page (page_cache);
-	}
-	
-	if (height)
-		*height = page_cache->height_to_page [page] * scale;
-
-	if (dual_height)
-		*dual_height = page_cache->dual_height_to_page [page] * scale;
-}
-
-void
-ev_page_cache_get_thumbnail_size (EvPageCache  *page_cache,
-				  gint          page,
-				  gint          rotation,
-				  gint         *width,
-				  gint         *height)
-{
-	gint w, h;
-
-	g_return_if_fail (EV_IS_PAGE_CACHE (page_cache));
-	g_return_if_fail (page >= 0 && page < page_cache->n_pages);
-
-	if (page_cache->thumbs_uniform) {
-		w = page_cache->thumbs_uniform_width;
-		h = page_cache->thumbs_uniform_height;
-	} else {
-		EvPageThumbsInfo *info;
-
-		info = &(page_cache->thumbs_size_cache [page]);
-		
-		w = info->width;
-		h = info->height;
-	}
-
-	if (rotation == 0 || rotation == 180) {
-		if (width) *width = w;
-		if (height) *height = h;
-	} else {
-		if (width) *width = h;
-		if (height) *height = w;
-	}
-}
-
-gint
-ev_page_cache_get_max_label_chars (EvPageCache *page_cache)
-{
-	g_return_val_if_fail (EV_IS_PAGE_CACHE (page_cache), 0);
-	
-	return page_cache->max_label_chars;
-}
-
-gboolean
-ev_page_cache_get_dual_even_left (EvPageCache *page_cache)
-{
-	g_return_val_if_fail (EV_IS_PAGE_CACHE (page_cache), 0);
-	
-	return page_cache->dual_even_left;
-}
-
-gchar *
-ev_page_cache_get_page_label (EvPageCache *page_cache,
-			      gint         page)
-{
-	g_return_val_if_fail (EV_IS_PAGE_CACHE (page_cache), NULL);
-	g_return_val_if_fail (page >= 0 && page < page_cache->n_pages, NULL);
-
-	if (page_cache->page_labels[page] == NULL)
-		return g_strdup_printf ("%d", page + 1);
-
-	return g_strdup (page_cache->page_labels[page]);
-}
-
-gboolean
-ev_page_cache_has_nonnumeric_page_labels (EvPageCache *page_cache)
-{
-	g_return_val_if_fail (EV_IS_PAGE_CACHE (page_cache), FALSE);
-	return page_cache->has_labels;
-}
-
-const EvDocumentInfo *
-ev_page_cache_get_info (EvPageCache *page_cache)
-{
-	g_return_val_if_fail (EV_IS_PAGE_CACHE (page_cache), NULL);
-
-	return page_cache->page_info;
-}
-
-#define PAGE_CACHE_STRING "ev-page-cache"
-
-EvPageCache *
-ev_page_cache_get (EvDocument *document)
-{
-	EvPageCache *page_cache;
-
-	g_return_val_if_fail (EV_IS_DOCUMENT (document), NULL);
-
-	page_cache = g_object_get_data (G_OBJECT (document), PAGE_CACHE_STRING);
-	if (page_cache == NULL) {
-		page_cache = ev_page_cache_new (document);
-		g_object_set_data_full (G_OBJECT (document), PAGE_CACHE_STRING, page_cache, g_object_unref);
-	}
-
-	return page_cache;
-}