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authorPerberos <[email protected]>2011-11-04 22:37:08 -0300
committerPerberos <[email protected]>2011-11-04 22:37:08 -0300
commit1edf6684b4713b0848f425d474fc1a43b073942d (patch)
treef78832545d22866467af640a5bb0b5f7ea3e08c0 /savers/gste-slideshow.c.orig
parent497dc1c333aeb0c327f073317e3c55491687f4cd (diff)
downloadmate-screensaver-1edf6684b4713b0848f425d474fc1a43b073942d.tar.bz2
mate-screensaver-1edf6684b4713b0848f425d474fc1a43b073942d.tar.xz
quitando archivos generados por astyle
Diffstat (limited to 'savers/gste-slideshow.c.orig')
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diff --git a/savers/gste-slideshow.c.orig b/savers/gste-slideshow.c.orig
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--- a/savers/gste-slideshow.c.orig
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-/* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 8; tab-width: 8 -*-
- *
- * Copyright (C) 2005-2006 William Jon McCann <[email protected]>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- *
- */
-
-#include "config.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-
-#include <glib.h>
-#include <gtk/gtk.h>
-
-#include "gs-theme-engine.h"
-#include "gste-slideshow.h"
-
-static void gste_slideshow_class_init (GSTESlideshowClass *klass);
-static void gste_slideshow_init (GSTESlideshow *engine);
-static void gste_slideshow_finalize (GObject *object);
-
-struct GSTESlideshowPrivate
-{
- /* Image at full opacity */
- cairo_pattern_t *pat1;
- /* Image at partial opacity */
- cairo_pattern_t *pat2;
- /* Alpha of pat2 */
- gdouble alpha2;
- /* edges of pat2 */
- int pat2top;
- int pat2bottom;
- int pat2left;
- int pat2right;
-
- /* backbuffer that we do all the alpha drawing into (no round
- * trips to the X server when the server doesn't support drawing
- * pixmaps with alpha?) */
- cairo_surface_t *surf;
-
- gint64 fade_ticks;
-
- GThread *load_thread;
- GAsyncQueue *op_q;
- GAsyncQueue *results_q;
-
- guint results_pull_id;
- guint update_image_id;
-
- GSList *filename_list;
- char *images_location;
- gboolean sort_images;
- int window_width;
- int window_height;
- PangoColor *background_color;
- gboolean no_stretch_hint;
-
- guint timeout_id;
-
- GTimer *timer;
- gboolean fade_disabled;
-};
-
-enum {
- PROP_0,
- PROP_IMAGES_LOCATION,
- PROP_SORT_IMAGES,
- PROP_SOLID_BACKGROUND,
- PROP_NO_STRETCH_HINT
-};
-
-#define GSTE_SLIDESHOW_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GSTE_TYPE_SLIDESHOW, GSTESlideshowPrivate))
-
-static GObjectClass *parent_class = NULL;
-
-G_DEFINE_TYPE (GSTESlideshow, gste_slideshow, GS_TYPE_THEME_ENGINE)
-
-#define N_FADE_TICKS 10
-#define MINIMUM_FPS 3.0
-#define DEFAULT_IMAGES_LOCATION DATADIR "/pixmaps/backgrounds"
-#define IMAGE_LOAD_TIMEOUT 10000
-
-typedef struct _Op
-{
- char *location;
- GSTESlideshow *slideshow;
-} Op;
-
-typedef struct _OpResult
-{
- GdkPixbuf *pixbuf;
-} OpResult;
-
-static gboolean
-push_load_image_func (GSTESlideshow *show)
-{
- Op *op;
-
- gs_theme_engine_profile_msg ("Starting a new image load");
-
- op = g_new (Op, 1);
-
- op->location = g_strdup (show->priv->images_location);
- op->slideshow = g_object_ref (show);
-
- g_async_queue_push (show->priv->op_q, op);
-
- show->priv->update_image_id = 0;
-
- return FALSE;
-}
-
-static void
-start_new_load (GSTESlideshow *show,
- guint timeout)
-{
- gs_theme_engine_profile_msg ("Scheduling a new image load");
-
- /* queue a new load */
- if (show->priv->update_image_id <= 0) {
- show->priv->update_image_id = g_timeout_add_full (G_PRIORITY_LOW, timeout,
- (GSourceFunc)push_load_image_func,
- show, NULL);
- }
-}
-
-static void
-start_fade (GSTESlideshow *show,
- GdkPixbuf *pixbuf)
-{
- int pw;
- int ph;
- int x;
- int y;
- cairo_t *cr;
- int window_width;
- int window_height;
-
- gs_theme_engine_profile_start ("start");
-
- window_width = show->priv->window_width;
- window_height = show->priv->window_height;
-
- if (show->priv->pat2 != NULL) {
- cairo_pattern_destroy (show->priv->pat2);
- }
-
- pw = gdk_pixbuf_get_width (pixbuf);
- ph = gdk_pixbuf_get_height (pixbuf);
- x = (window_width - pw) / 2;
- y = (window_height - ph) / 2;
-
- if (gdk_pixbuf_get_has_alpha (pixbuf) && show->priv->background_color) {
- GdkPixbuf *colored;
- guint32 color;
- GdkPixmap *pixmap;
-
- color = (show->priv->background_color->red << 16)
- + (show->priv->background_color->green / 256 << 8)
- + show->priv->background_color->blue / 256;
- colored = gdk_pixbuf_composite_color_simple (pixbuf,
- pw, ph,
- GDK_INTERP_BILINEAR,
- 255,
- 256,
- color,
- color);
- pixmap = gdk_pixmap_new (NULL, ph, pw, gdk_visual_get_system ()->depth);
-
- gdk_draw_pixbuf (pixmap, NULL, colored, 0, 0, 0, 0, -1, -1, GDK_RGB_DITHER_MAX, 0, 0);
- gdk_pixbuf_get_from_drawable (pixbuf, pixmap, NULL, 0, 0, 0, 0, -1, -1);
-
- g_object_unref (pixmap);
-
- g_object_unref(colored);
- }
-
- cr = cairo_create (show->priv->surf);
-
- /* XXX Handle out of memory? */
- gdk_cairo_set_source_pixbuf (cr, pixbuf, x, y);
- show->priv->pat2 = cairo_pattern_reference (cairo_get_source (cr));
- show->priv->pat2top = y;
- show->priv->pat2bottom = y + ph;
- show->priv->pat2left = x;
- show->priv->pat2right = x + pw;
-
- cairo_destroy (cr);
-
- show->priv->fade_ticks = 0;
- g_timer_start (show->priv->timer);
-
- gs_theme_engine_profile_end ("end");
-}
-
-static void
-finish_fade (GSTESlideshow *show)
-{
- gs_theme_engine_profile_start ("start");
-
- if (show->priv->pat1 != NULL) {
- cairo_pattern_destroy (show->priv->pat1);
- }
-
- show->priv->pat1 = show->priv->pat2;
- show->priv->pat2 = NULL;
-
- start_new_load (show, IMAGE_LOAD_TIMEOUT);
-
- gs_theme_engine_profile_end ("end");
-}
-
-static void
-update_display (GSTESlideshow *show)
-{
- int window_width;
- int window_height;
- cairo_t *cr;
-
- gs_theme_engine_profile_start ("start");
-
- cr = cairo_create (show->priv->surf);
-
- gs_theme_engine_get_window_size (GS_THEME_ENGINE (show),
- &window_width,
- &window_height);
-
- if (show->priv->pat2 != NULL) {
- /* fade out areas not covered by the new image */
- /* top */
- cairo_rectangle (cr, 0, 0, window_width, show->priv->pat2top);
- if (show->priv->background_color) {
- cairo_set_source_rgba (cr, show->priv->background_color->red / 65535.0,
- show->priv->background_color->green / 65535.0,
- show->priv->background_color->blue / 65535.0, show->priv->alpha2);
- } else {
- cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, show->priv->alpha2);
- }
- cairo_fill (cr);
- /* left (excluding what's covered by top and bottom) */
- cairo_rectangle (cr, 0, show->priv->pat2top,
- show->priv->pat2left,
- show->priv->pat2bottom - show->priv->pat2top);
- if (show->priv->background_color) {
- cairo_set_source_rgba (cr, show->priv->background_color->red / 65535.0,
- show->priv->background_color->green / 65535.0,
- show->priv->background_color->blue / 65535.0, show->priv->alpha2);
- } else {
- cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, show->priv->alpha2);
- }
- cairo_fill (cr);
- /* bottom */
- cairo_rectangle (cr, 0, show->priv->pat2bottom, window_width,
- window_height - show->priv->pat2bottom);
- if (show->priv->background_color) {
- cairo_set_source_rgba (cr, show->priv->background_color->red / 65535.0,
- show->priv->background_color->green / 65535.0,
- show->priv->background_color->blue / 65535.0, show->priv->alpha2);
- } else {
- cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, show->priv->alpha2);
- }
- cairo_fill (cr);
- /* right (excluding what's covered by top and bottom) */
- cairo_rectangle (cr, show->priv->pat2right,
- show->priv->pat2top,
- window_width - show->priv->pat2right,
- show->priv->pat2bottom - show->priv->pat2top);
- if (show->priv->background_color) {
- cairo_set_source_rgba (cr, show->priv->background_color->red / 65535.0,
- show->priv->background_color->green / 65535.0,
- show->priv->background_color->blue / 65535.0, show->priv->alpha2);
- } else {
- cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, show->priv->alpha2);
- }
- cairo_fill (cr);
-
- gs_theme_engine_profile_start ("paint pattern to surface");
- cairo_set_source (cr, show->priv->pat2);
-
- cairo_paint_with_alpha (cr, show->priv->alpha2);
- gs_theme_engine_profile_end ("paint pattern to surface");
- } else {
- if (show->priv->pat1 != NULL) {
- cairo_set_source (cr, show->priv->pat1);
- cairo_paint (cr);
- }
- }
-
- cairo_destroy (cr);
-
- /* paint the image buffer into the window */
- cr = gdk_cairo_create (GTK_WIDGET (show)->window);
-
- cairo_set_source_surface (cr, show->priv->surf, 0, 0);
-
- gs_theme_engine_profile_start ("paint surface to window");
- cairo_paint (cr);
- gs_theme_engine_profile_end ("paint surface to window");
-
- cairo_destroy (cr);
-
- gs_theme_engine_profile_end ("end");
-}
-
-static gboolean
-draw_iter (GSTESlideshow *show)
-{
- double old_opacity;
- double new_opacity;
-
- if (show->priv->pat2 != NULL) {
- gdouble fps;
- gdouble elapsed;
-
- if (show->priv->fade_disabled) {
- show->priv->alpha2 = 1.0;
- update_display (show);
- finish_fade (show);
- return TRUE;
- }
-
- /* we are in a fade */
- show->priv->fade_ticks++;
-
- /*
- * We have currently drawn pat2 with old_opacity, and we
- * want to set alpha2 so that drawing pat2 at alpha2
- * yields it drawn with new_opacity
- *
- * Solving
- * new_opacity = 1 - (1 - alpha2) * (1 - old_opacity)
- * yields
- * alpha2 = 1 - (1 - new_opacity) / (1 - old_opacity)
- *
- * XXX This assumes that cairo doesn't correct alpha for
- * the color profile. However, any error is guaranteed
- * to be cleaned up by the last iteration, where alpha2
- * becomes 1 because new_opacity is 1.
- */
- old_opacity = (double) (show->priv->fade_ticks - 1) /
- (double) N_FADE_TICKS;
- new_opacity = (double) show->priv->fade_ticks /
- (double) N_FADE_TICKS;
- show->priv->alpha2 = 1.0 - (1.0 - new_opacity) /
- (1.0 - old_opacity);
-
- update_display (show);
-
- elapsed = g_timer_elapsed (show->priv->timer, NULL);
- fps = (gdouble)show->priv->fade_ticks / elapsed;
- if (fps < MINIMUM_FPS) {
- g_warning ("Getting less than %.2f frames per second, disabling fade", MINIMUM_FPS);
- show->priv->fade_ticks = N_FADE_TICKS - 1;
- show->priv->fade_disabled = TRUE;
- }
-
- if (show->priv->fade_ticks >= N_FADE_TICKS) {
- finish_fade (show);
- }
- }
-
- return TRUE;
-}
-
-static void
-process_new_pixbuf (GSTESlideshow *show,
- GdkPixbuf *pixbuf)
-{
- gs_theme_engine_profile_msg ("Processing a new image");
-
- if (pixbuf != NULL) {
- start_fade (show, pixbuf);
- } else {
- start_new_load (show, 10);
- }
-}
-
-static void
-op_result_free (OpResult *result)
-{
- if (result == NULL) {
- return;
- }
-
- if (result->pixbuf != NULL) {
- g_object_unref (result->pixbuf);
- }
-
- g_free (result);
-}
-
-static gboolean
-results_pull_func (GSTESlideshow *show)
-{
- OpResult *result;
-
- GDK_THREADS_ENTER ();
-
- g_async_queue_lock (show->priv->results_q);
-
- result = g_async_queue_try_pop_unlocked (show->priv->results_q);
- g_assert (result);
-
- while (result != NULL) {
- process_new_pixbuf (show, result->pixbuf);
- op_result_free (result);
-
- result = g_async_queue_try_pop_unlocked (show->priv->results_q);
- }
-
- show->priv->results_pull_id = 0;
-
- g_async_queue_unlock (show->priv->results_q);
-
- GDK_THREADS_LEAVE ();
-
- return FALSE;
-}
-
-static GdkPixbuf *
-scale_pixbuf (GdkPixbuf *pixbuf,
- int max_width,
- int max_height,
- gboolean no_stretch_hint)
-{
- int pw;
- int ph;
- float scale_factor_x = 1.0;
- float scale_factor_y = 1.0;
- float scale_factor = 1.0;
-
- pw = gdk_pixbuf_get_width (pixbuf);
- ph = gdk_pixbuf_get_height (pixbuf);
-
- /* If the image is less than 256 wide or high then it
- is probably a thumbnail and we should ignore it */
- if (pw < 256 || ph < 256) {
- return NULL;
- }
-
- /* Determine which dimension requires the smallest scale. */
- scale_factor_x = (float) max_width / (float) pw;
- scale_factor_y = (float) max_height / (float) ph;
-
- if (scale_factor_x > scale_factor_y) {
- scale_factor = scale_factor_y;
- } else {
- scale_factor = scale_factor_x;
- }
-
- /* always scale down, allow to disable scaling up */
- if (scale_factor < 1.0 || !no_stretch_hint) {
- int scale_x;
- int scale_y;
-
- scale_x = (int) (pw * scale_factor);
- scale_y = (int) (ph * scale_factor);
- return gdk_pixbuf_scale_simple (pixbuf,
- scale_x,
- scale_y,
- GDK_INTERP_BILINEAR);
- } else {
- return g_object_ref (pixbuf);
- }
-}
-
-static void
-add_files_to_list (GSList **list,
- const char *base)
-{
- GDir *d;
- const char *d_name;
-
- d = g_dir_open (base, 0, NULL);
- if (d == NULL) {
- g_warning ("Could not open directory: %s", base);
- return;
- }
-
- while ((d_name = g_dir_read_name (d)) != NULL) {
- char *path;
-
- /* skip hidden files */
- if (d_name[0] == '.') {
- continue;
- }
-
- path = g_build_filename (base, d_name, NULL);
- if (g_file_test (path, G_FILE_TEST_IS_DIR)) {
- add_files_to_list (list, path);
- g_free (path);
- } else {
- *list = g_slist_prepend (*list, path);
- }
- }
-
- g_dir_close (d);
-}
-
-static GSList *
-build_filename_list_local_dir (const char *base)
-{
- GSList *list = NULL;
-
- add_files_to_list (&list, base);
-
- return list;
-}
-
-static int
-gste_strcmp_compare_func (gconstpointer string_a, gconstpointer string_b)
-{
- return strcmp (string_a == NULL ? "" : string_a,
- string_b == NULL ? "" : string_b);
-}
-
-
-static GdkPixbuf *
-get_pixbuf_from_local_dir (GSTESlideshow *show,
- const char *location)
-{
- GdkPixbuf *pixbuf, *transformed_pixbuf;
- char *filename;
- int i;
- GSList *l;
-
- /* rebuild the cache */
- if (show->priv->filename_list == NULL) {
- show->priv->filename_list = build_filename_list_local_dir (location);
- }
-
- if (show->priv->filename_list == NULL) {
- return NULL;
- } else {
- if (show->priv->sort_images) {
- show->priv->filename_list = g_slist_sort (show->priv->filename_list, gste_strcmp_compare_func);
- }
- }
-
- /* get a random filename if needed */
- if (! show->priv->sort_images) {
- i = g_random_int_range (0, g_slist_length (show->priv->filename_list));
- l = g_slist_nth (show->priv->filename_list, i);
- } else {
- l = show->priv->filename_list;
- }
- filename = l->data;
-
- pixbuf = gdk_pixbuf_new_from_file (filename, NULL);
-
- if (pixbuf != NULL) {
- transformed_pixbuf = gdk_pixbuf_apply_embedded_orientation (pixbuf);
- g_object_unref (pixbuf);
- } else {
- transformed_pixbuf = NULL;
- }
-
- g_free (filename);
- show->priv->filename_list = g_slist_delete_link (show->priv->filename_list, l);
-
- return transformed_pixbuf;
-}
-
-static GdkPixbuf *
-get_pixbuf_from_location (GSTESlideshow *show,
- const char *location)
-{
- GdkPixbuf *pixbuf = NULL;
- gboolean is_dir;
-
- if (location == NULL) {
- return NULL;
- }
-
- is_dir = g_file_test (location, G_FILE_TEST_IS_DIR);
-
- if (is_dir) {
- pixbuf = get_pixbuf_from_local_dir (show, location);
- }
-
- return pixbuf;
-}
-
-static GdkPixbuf *
-get_pixbuf (GSTESlideshow *show,
- const char *location,
- int width,
- int height)
-{
- GdkPixbuf *pixbuf;
- GdkPixbuf *scaled = NULL;
-
- if (location == NULL) {
- return NULL;
- }
-
- pixbuf = get_pixbuf_from_location (show, location);
-
- if (pixbuf != NULL) {
- scaled = scale_pixbuf (pixbuf, width, height, show->priv->no_stretch_hint);
- g_object_unref (pixbuf);
- }
-
- return scaled;
-}
-
-static void
-op_load_image (GSTESlideshow *show,
- const char *location)
-{
- OpResult *op_result;
- int window_width;
- int window_height;
-
- window_width = show->priv->window_width;
- window_height = show->priv->window_height;
-
- op_result = g_new0 (OpResult, 1);
-
- op_result->pixbuf = get_pixbuf (show,
- location,
- window_width,
- window_height);
-
- GDK_THREADS_ENTER ();
- g_async_queue_lock (show->priv->results_q);
- g_async_queue_push_unlocked (show->priv->results_q, op_result);
-
- if (show->priv->results_pull_id == 0) {
- show->priv->results_pull_id = g_idle_add_full (G_PRIORITY_HIGH_IDLE,
- (GSourceFunc)results_pull_func,
- show, NULL);
- }
-
- g_async_queue_unlock (show->priv->results_q);
- GDK_THREADS_LEAVE ();
-}
-
-static gpointer
-load_threadfunc (GAsyncQueue *op_q)
-{
- Op *op;
-
- op = g_async_queue_pop (op_q);
- while (op) {
- op_load_image (op->slideshow,
- op->location);
-
- if (op->slideshow != NULL) {
- g_object_unref (op->slideshow);
- }
- g_free (op->location);
- g_free (op);
-
- op = g_async_queue_pop (op_q);
- }
-
- return NULL;
-}
-
-void
-gste_slideshow_set_images_location (GSTESlideshow *show,
- const char *location)
-{
- g_return_if_fail (GSTE_IS_SLIDESHOW (show));
-
- g_free (show->priv->images_location);
- show->priv->images_location = g_strdup (location);
-}
-
-
-void
-gste_slideshow_set_sort_images (GSTESlideshow *show,
- gboolean sort_images)
-{
- g_return_if_fail (GSTE_IS_SLIDESHOW (show));
-
- show->priv->sort_images = sort_images;
-}
-
-void
-gste_slideshow_set_no_stretch_hint (GSTESlideshow *show,
- gboolean no_stretch_hint)
-{
- g_return_if_fail (GSTE_IS_SLIDESHOW (show));
-
- show->priv->no_stretch_hint = no_stretch_hint;
-}
-
-void
-gste_slideshow_set_background_color (GSTESlideshow *show,
- const char *background_color)
-{
- g_return_if_fail (GSTE_IS_SLIDESHOW (show));
-
- if (show->priv->background_color != NULL) {
- g_slice_free (PangoColor, show->priv->background_color);
- show->priv->background_color = NULL;
- }
-
- if (background_color != NULL) {
- show->priv->background_color = g_slice_new (PangoColor);
-
- if (pango_color_parse (show->priv->background_color, background_color) == FALSE) {
- g_slice_free (PangoColor, show->priv->background_color);
- show->priv->background_color = NULL;
- }
- }
-}
-
-static void
-gste_slideshow_set_property (GObject *object,
- guint prop_id,
- const GValue *value,
- GParamSpec *pspec)
-{
- GSTESlideshow *self;
-
- self = GSTE_SLIDESHOW (object);
-
- switch (prop_id) {
- case PROP_IMAGES_LOCATION:
- gste_slideshow_set_images_location (self, g_value_get_string (value));
- break;
- case PROP_SORT_IMAGES:
- gste_slideshow_set_sort_images (self, g_value_get_boolean (value));
- break;
- case PROP_SOLID_BACKGROUND:
- gste_slideshow_set_background_color (self, g_value_get_string (value));
- break;
- case PROP_NO_STRETCH_HINT:
- gste_slideshow_set_no_stretch_hint (self, g_value_get_boolean (value));
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gste_slideshow_get_property (GObject *object,
- guint prop_id,
- GValue *value,
- GParamSpec *pspec)
-{
- GSTESlideshow *self;
-
- self = GSTE_SLIDESHOW (object);
-
- switch (prop_id) {
- case PROP_IMAGES_LOCATION:
- g_value_set_string (value, self->priv->images_location);
- break;
- case PROP_SORT_IMAGES:
- g_value_set_boolean (value, self->priv->sort_images);
- break;
- case PROP_SOLID_BACKGROUND:
- {
- char *color = NULL;
- color = pango_color_to_string (self->priv->background_color);
- g_value_set_string (value, color);
- g_free (color);
- break;
- }
- case PROP_NO_STRETCH_HINT:
- g_value_set_boolean (value, self->priv->no_stretch_hint);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gste_slideshow_real_show (GtkWidget *widget)
-{
- GSTESlideshow *show = GSTE_SLIDESHOW (widget);
- int delay;
-
- if (GTK_WIDGET_CLASS (parent_class)->show) {
- GTK_WIDGET_CLASS (parent_class)->show (widget);
- }
-
- start_new_load (show, 10);
-
- delay = 25;
- show->priv->timeout_id = g_timeout_add (delay, (GSourceFunc)draw_iter, show);
-
- if (show->priv->timer != NULL) {
- g_timer_destroy (show->priv->timer);
- }
- show->priv->timer = g_timer_new ();
-}
-
-static gboolean
-gste_slideshow_real_expose (GtkWidget *widget,
- GdkEventExpose *event)
-{
- GSTESlideshow *show = GSTE_SLIDESHOW (widget);
- gboolean handled = FALSE;
-
- update_display (show);
-
- if (GTK_WIDGET_CLASS (parent_class)->expose_event) {
- handled = GTK_WIDGET_CLASS (parent_class)->expose_event (widget, event);
- }
-
- return handled;
-}
-
-static gboolean
-gste_slideshow_real_configure (GtkWidget *widget,
- GdkEventConfigure *event)
-{
- GSTESlideshow *show = GSTE_SLIDESHOW (widget);
- gboolean handled = FALSE;
- cairo_t *cr;
-
- /* resize */
- gs_theme_engine_get_window_size (GS_THEME_ENGINE (show),
- &show->priv->window_width,
- &show->priv->window_height);
-
- gs_theme_engine_profile_msg ("Resize to x:%d y:%d",
- show->priv->window_width,
- show->priv->window_height);
-
- if (show->priv->surf != NULL) {
- cairo_surface_destroy (show->priv->surf);
- }
-
- cr = gdk_cairo_create (widget->window);
- show->priv->surf = cairo_surface_create_similar (cairo_get_target (cr),
- CAIRO_CONTENT_COLOR,
- show->priv->window_width,
- show->priv->window_height);
- cairo_destroy (cr);
-
- /* schedule a redraw */
- gtk_widget_queue_draw (widget);
-
- if (GTK_WIDGET_CLASS (parent_class)->configure_event) {
- handled = GTK_WIDGET_CLASS (parent_class)->configure_event (widget, event);
- }
-
- return handled;
-}
-
-static void
-gste_slideshow_class_init (GSTESlideshowClass *klass)
-{
- GObjectClass *object_class = G_OBJECT_CLASS (klass);
- GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
-
- parent_class = g_type_class_peek_parent (klass);
-
- object_class->finalize = gste_slideshow_finalize;
- object_class->get_property = gste_slideshow_get_property;
- object_class->set_property = gste_slideshow_set_property;
-
- widget_class->show = gste_slideshow_real_show;
- widget_class->expose_event = gste_slideshow_real_expose;
- widget_class->configure_event = gste_slideshow_real_configure;
-
- g_type_class_add_private (klass, sizeof (GSTESlideshowPrivate));
-
- g_object_class_install_property (object_class,
- PROP_IMAGES_LOCATION,
- g_param_spec_string ("images-location",
- NULL,
- NULL,
- NULL,
- G_PARAM_READWRITE));
- g_object_class_install_property (object_class,
- PROP_SORT_IMAGES,
- g_param_spec_boolean ("sort-images",
- NULL,
- NULL,
- FALSE,
- G_PARAM_READWRITE));
- g_object_class_install_property (object_class,
- PROP_SOLID_BACKGROUND,
- g_param_spec_string ("background-color",
- NULL,
- NULL,
- NULL,
- G_PARAM_READWRITE));
- g_object_class_install_property (object_class,
- PROP_NO_STRETCH_HINT,
- g_param_spec_boolean ("no-stretch",
- NULL,
- NULL,
- FALSE,
- G_PARAM_READWRITE));
-}
-
-static void
-set_colormap (GtkWidget *widget)
-{
- GdkScreen *screen;
- GdkColormap *colormap;
-
- screen = gtk_widget_get_screen (widget);
- colormap = gdk_screen_get_rgba_colormap (screen);
- if (colormap == NULL) {
- colormap = gdk_screen_get_rgb_colormap (screen);
- }
-
- gtk_widget_set_colormap (widget, colormap);
-}
-
-static void
-gste_slideshow_init (GSTESlideshow *show)
-{
- GError *error;
-
- show->priv = GSTE_SLIDESHOW_GET_PRIVATE (show);
-
- show->priv->images_location = g_strdup (DEFAULT_IMAGES_LOCATION);
-
- show->priv->op_q = g_async_queue_new ();
- show->priv->results_q = g_async_queue_new ();
-
- error = NULL;
- show->priv->load_thread = g_thread_create ((GThreadFunc)load_threadfunc, show->priv->op_q, FALSE, &error);
- if (show->priv->load_thread == NULL) {
- g_error ("Could not create a thread to load images: %s",
- error->message);
- g_error_free (error);
- exit (-1);
- }
-
- set_colormap (GTK_WIDGET (show));
-}
-
-static void
-gste_slideshow_finalize (GObject *object)
-{
- GSTESlideshow *show;
- gpointer result;
-
- g_return_if_fail (object != NULL);
- g_return_if_fail (GSTE_IS_SLIDESHOW (object));
-
- show = GSTE_SLIDESHOW (object);
-
- g_return_if_fail (show->priv != NULL);
-
- if (show->priv->surf) {
- cairo_surface_destroy (show->priv->surf);
- }
-
- if (show->priv->timeout_id > 0) {
- g_source_remove (show->priv->timeout_id);
- show->priv->timeout_id = 0;
- }
-
- if (show->priv->results_pull_id > 0) {
- g_source_remove (show->priv->results_pull_id);
- }
-
- if (show->priv->results_q != NULL) {
- result = g_async_queue_try_pop (show->priv->results_q);
-
- while (result) {
- result = g_async_queue_try_pop (show->priv->results_q);
- }
- g_async_queue_unref (show->priv->results_q);
- }
-
- g_free (show->priv->images_location);
- show->priv->images_location = NULL;
-
- if (show->priv->background_color) {
- g_slice_free (PangoColor, show->priv->background_color);
- show->priv->background_color = NULL;
- }
-
- if (show->priv->timer != NULL) {
- g_timer_destroy (show->priv->timer);
- }
-
- G_OBJECT_CLASS (parent_class)->finalize (object);
-}