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Diffstat (limited to 'savers/gste-slideshow.c.orig')
| -rw-r--r-- | savers/gste-slideshow.c.orig | 1001 |
1 files changed, 0 insertions, 1001 deletions
diff --git a/savers/gste-slideshow.c.orig b/savers/gste-slideshow.c.orig deleted file mode 100644 index 8ea83bd..0000000 --- a/savers/gste-slideshow.c.orig +++ /dev/null @@ -1,1001 +0,0 @@ -/* -*- 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); -} |