+#include <config.h>
#include "ev-page-cache.h"
-#include "ev-job-queue.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;
+} EvPageCacheInfo;
+typedef struct _EvPageThumbsInfo
+{
+ gint width;
+ gint height;
+} EvPageThumbsInfo;
struct _EvPageCache
{
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,
};
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
page_cache = EV_PAGE_CACHE (object);
- g_free (page_cache->title);
- g_free (page_cache->size_cache);
+ 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);
- ev_document_info_free (page_cache->page_info);
+ 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 *
{
EvPageCache *page_cache;
EvPageCacheInfo *info;
+ EvPageThumbsInfo *thumb_info;
+ EvRenderContext *rc = NULL;
+ gboolean has_thumbs;
gint i;
- double saved_height;
page_cache = (EvPageCache *) g_object_new (EV_TYPE_PAGE_CACHE, NULL);
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);
page_cache->title = NULL;
}
+ has_thumbs = EV_IS_DOCUMENT_THUMBNAILS (document);
+
for (i = 0; i < page_cache->n_pages; i++) {
- double page_width = 0;
- double page_height = 0;
+ 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, i, &page_width, &page_height);
+ ev_document_get_page_size (document, page, &page_width, &page_height);
- page_cache->page_labels[i] = ev_document_get_page_label (document, i);
+ 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));
+ 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;
info->width = page_width;
info->height = page_height;
}
- }
- page_cache->height_to_page = g_new0(double, page_cache->n_pages);
- page_cache->dual_height_to_page = g_new0(double, page_cache->n_pages / 2 + 1);
-
- saved_height = 0;
- for (i = 0; i < page_cache->n_pages; i++) {
+ if (!has_thumbs) {
+ g_object_unref (page);
+ continue;
+ }
- if (page_cache->uniform) {
- page_cache->height_to_page [i] = (i + 1) * page_cache->uniform_height;
+ if (!rc) {
+ rc = ev_render_context_new (page, 0, (gdouble)THUMBNAIL_WIDTH / page_width);
} else {
- page_cache->height_to_page [i] = saved_height + page_cache->size_cache [i].height;
- saved_height = page_cache->height_to_page [i];
+ ev_render_context_set_page (rc, page);
+ ev_render_context_set_scale (rc, (gdouble)THUMBNAIL_WIDTH / page_width);
}
- }
-
- saved_height = 0;
- for (i = 0; i < page_cache->n_pages; i += 2) {
- if (page_cache->uniform) {
- page_cache->dual_height_to_page [i / 2] = (i / 2 + 1) * page_cache->uniform_height;
- } else {
- if (i == page_cache->n_pages - 1) {
- page_cache->dual_height_to_page [i / 2] =
- saved_height + page_cache->size_cache [i].height;
- }
- else {
- page_cache->dual_height_to_page [i / 2] = saved_height +
- MAX(page_cache->size_cache [i].height,
- page_cache->size_cache [i + 1].height);
- saved_height = page_cache->dual_height_to_page [i / 2];
+ 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)
+ 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 ();
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)
}
}
+ /* 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') {
/* convert from a page label to a page offset */
page --;
if (page >= 0 &&
- page < page_cache->n_pages &&
- page_cache->page_labels[page] == NULL) {
+ page < page_cache->n_pages) {
ev_page_cache_set_current_page (page_cache, page);
return TRUE;
}
return FALSE;
}
-void
-ev_page_cache_set_link (EvPageCache *page_cache,
- EvLink *link)
-{
- g_return_if_fail (EV_IS_PAGE_CACHE (page_cache));
- g_return_if_fail (EV_IS_LINK (link));
-
- ev_page_cache_set_current_page (page_cache, ev_link_get_page (link));
-}
-
const char *
ev_page_cache_get_title (EvPageCache *page_cache)
{
}
void
-ev_page_cache_get_size (EvPageCache *page_cache,
- gint page,
- gfloat scale,
- gint *width,
- gint *height)
+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) {
- if (width)
- *width = page_cache->uniform_width;
- if (height)
- *height = page_cache->uniform_height;
+ w = page_cache->uniform_width;
+ h = page_cache->uniform_height;
} else {
EvPageCacheInfo *info;
info = &(page_cache->size_cache [page]);
- if (width)
- *width = info->width;
- if (height)
- *height = info->height;
+ w = info->width;
+ h = info->height;
}
- if (width)
- *width = (int) ((*width) * scale + 0.5);
- if (width)
- *height = (int) ((*height) * scale + 0.5);
+ 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,
- gfloat scale,
- gint *width)
+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)
- *width = page_cache->max_width * scale;
+ 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,
- gfloat scale,
- gint *height)
+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)
- *height = page_cache->max_height * scale;
+ 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,
- gfloat scale,
- gint *height,
- gint *dual_height)
+ev_page_cache_get_height_to_page (EvPageCache *page_cache,
+ gint page,
+ gint rotation,
+ gfloat scale,
+ gint *height,
+ gint *dual_height)
{
- double result = 0.0;
- double dual_result = 0.0;
-
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 > 0)
- result = page_cache->height_to_page [page - 1];
+ if (page_cache->rotation != rotation) {
+ page_cache->rotation = rotation;
+ build_height_to_page (page_cache);
+ }
if (height)
- *height = result * scale;
+ *height = page_cache->height_to_page [page] * scale;
- if (page > 1)
- dual_result = page_cache->dual_height_to_page [page / 2 - 1];
-
if (dual_height)
- *dual_height = dual_result * scale;
+ *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
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)
return page_cache->page_info;
}
-
-gboolean
-ev_page_cache_next_page (EvPageCache *page_cache)
-{
- g_return_val_if_fail (EV_IS_PAGE_CACHE (page_cache), FALSE);
-
- if (page_cache->current_page >= page_cache->n_pages - 1)
- return FALSE;
-
- ev_page_cache_set_current_page (page_cache, page_cache->current_page + 1);
- return TRUE;
-
-}
-
-gboolean
-ev_page_cache_prev_page (EvPageCache *page_cache)
-{
- g_return_val_if_fail (EV_IS_PAGE_CACHE (page_cache), FALSE);
-
- if (page_cache->current_page <= 0)
- return FALSE;
-
- ev_page_cache_set_current_page (page_cache, page_cache->current_page - 1);
- return TRUE;
-}
-
#define PAGE_CACHE_STRING "ev-page-cache"
EvPageCache *
return page_cache;
}
-
-
https://www.fi.muni.cz/~kas/git / evince.git / blobdiff