| /* |
| * Copyright (C) 2007 Carlos Garcia Campos <carlosgc@gnome.org> |
| * |
| * 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, 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "config.h" |
| |
| #include <gtk/gtk.h> |
| |
| #include "page.h" |
| #include "utils.h" |
| |
| typedef struct { |
| PopplerDocument *doc; |
| |
| GtkWidget *index; |
| GtkWidget *label; |
| GtkWidget *size; |
| GtkWidget *duration; |
| GtkWidget *thumbnail; |
| GtkWidget *thumbnail_size; |
| |
| gint page; |
| } PgdPageDemo; |
| |
| static void |
| pgd_page_free (PgdPageDemo *demo) |
| { |
| if (!demo) |
| return; |
| |
| if (demo->doc) { |
| g_object_unref (demo->doc); |
| demo->doc = NULL; |
| } |
| |
| g_free (demo); |
| } |
| |
| #ifndef POPPLER_WITH_GDK |
| static void |
| image_set_from_surface (GtkImage *gtkimage, |
| cairo_surface_t *surface) |
| { |
| GdkPixbuf *pixbuf; |
| cairo_surface_t *image; |
| cairo_t *cr; |
| gboolean has_alpha; |
| gint width, height; |
| cairo_format_t surface_format; |
| gint pixbuf_n_channels; |
| gint pixbuf_rowstride; |
| guchar *pixbuf_pixels; |
| gint x, y; |
| |
| width = cairo_image_surface_get_width (surface); |
| height = cairo_image_surface_get_height (surface); |
| |
| surface_format = cairo_image_surface_get_format (surface); |
| has_alpha = (surface_format == CAIRO_FORMAT_ARGB32); |
| |
| pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, |
| TRUE, 8, |
| width, height); |
| pixbuf_n_channels = gdk_pixbuf_get_n_channels (pixbuf); |
| pixbuf_rowstride = gdk_pixbuf_get_rowstride (pixbuf); |
| pixbuf_pixels = gdk_pixbuf_get_pixels (pixbuf); |
| |
| image = cairo_image_surface_create_for_data (pixbuf_pixels, |
| surface_format, |
| width, height, |
| pixbuf_rowstride); |
| cr = cairo_create (image); |
| cairo_set_source_surface (cr, surface, 0, 0); |
| |
| if (has_alpha) |
| cairo_mask_surface (cr, surface, 0, 0); |
| else |
| cairo_paint (cr); |
| |
| cairo_destroy (cr); |
| cairo_surface_destroy (image); |
| |
| for (y = 0; y < height; y++) { |
| guchar *p = pixbuf_pixels + y * pixbuf_rowstride; |
| |
| for (x = 0; x < width; x++) { |
| guchar tmp; |
| |
| #if G_BYTE_ORDER == G_LITTLE_ENDIAN |
| tmp = p[0]; |
| p[0] = p[2]; |
| p[2] = tmp; |
| p[3] = (has_alpha) ? p[3] : 0xff; |
| #else |
| tmp = p[0]; |
| p[0] = (has_alpha) ? p[3] : 0xff; |
| p[3] = p[2]; |
| p[2] = p[1]; |
| p[1] = tmp; |
| #endif |
| p += pixbuf_n_channels; |
| } |
| } |
| |
| gtk_image_set_from_pixbuf (gtkimage, pixbuf); |
| g_object_unref (pixbuf); |
| } |
| #endif /* !POPPLER_WITH_GDK */ |
| |
| static void |
| pgd_page_set_page (PgdPageDemo *demo, |
| PopplerPage *page) |
| { |
| #ifdef POPPLER_WITH_GDK |
| GdkPixbuf *thumbnail; |
| #else |
| cairo_surface_t *thumbnail; |
| #endif |
| gchar *str; |
| |
| str = page ? g_strdup_printf ("%d", poppler_page_get_index (page)) : NULL; |
| gtk_label_set_text (GTK_LABEL (demo->index), str); |
| g_free (str); |
| |
| if (page) { |
| str = poppler_page_get_label (page); |
| gtk_label_set_text (GTK_LABEL (demo->label), str); |
| g_free (str); |
| } else { |
| gtk_label_set_text (GTK_LABEL (demo->label), NULL); |
| } |
| |
| if (page) { |
| gdouble width, height; |
| |
| poppler_page_get_size (page, &width, &height); |
| str = g_strdup_printf ("%.2f x %.2f", width, height); |
| gtk_label_set_text (GTK_LABEL (demo->size), str); |
| g_free (str); |
| } else { |
| gtk_label_set_text (GTK_LABEL (demo->size), NULL); |
| } |
| |
| str = page ? g_strdup_printf ("%.2f seconds", poppler_page_get_duration (page)) : NULL; |
| gtk_label_set_text (GTK_LABEL (demo->duration), str); |
| g_free (str); |
| |
| #ifdef POPPLER_WITH_GDK |
| thumbnail = page ? poppler_page_get_thumbnail_pixbuf (page) : NULL; |
| #else |
| thumbnail = page ? poppler_page_get_thumbnail (page) : NULL; |
| #endif |
| if (thumbnail) { |
| gint width, height; |
| |
| poppler_page_get_thumbnail_size (page, &width, &height); |
| str = g_strdup_printf ("%d x %d", width, height); |
| gtk_label_set_text (GTK_LABEL (demo->thumbnail_size), str); |
| g_free (str); |
| |
| #ifdef POPPLER_WITH_GDK |
| gtk_image_set_from_pixbuf (GTK_IMAGE (demo->thumbnail), thumbnail); |
| g_object_unref (thumbnail); |
| #else |
| image_set_from_surface (GTK_IMAGE (demo->thumbnail), thumbnail); |
| cairo_surface_destroy (thumbnail); |
| #endif |
| } else { |
| str = g_strdup ("<i>No thumbnail found</i>"); |
| gtk_label_set_markup (GTK_LABEL (demo->thumbnail_size), str); |
| g_free (str); |
| |
| gtk_image_set_from_stock (GTK_IMAGE (demo->thumbnail), |
| GTK_STOCK_MISSING_IMAGE, |
| GTK_ICON_SIZE_DIALOG); |
| } |
| } |
| |
| static void |
| pgd_page_get_info (GtkWidget *button, |
| PgdPageDemo *demo) |
| { |
| PopplerPage *page; |
| |
| page = poppler_document_get_page (demo->doc, demo->page); |
| pgd_page_set_page (demo, page); |
| g_object_unref (page); |
| } |
| |
| static void |
| pgd_page_page_selector_value_changed (GtkSpinButton *spinbutton, |
| PgdPageDemo *demo) |
| { |
| demo->page = (gint)gtk_spin_button_get_value (spinbutton) - 1; |
| } |
| |
| GtkWidget * |
| pgd_page_create_widget (PopplerDocument *document) |
| { |
| PgdPageDemo *demo; |
| GtkWidget *vbox; |
| GtkWidget *hbox, *page_selector; |
| GtkWidget *button; |
| GtkWidget *frame, *alignment; |
| GtkWidget *table; |
| GtkWidget *label; |
| GtkWidget *thumnail_box; |
| gchar *str; |
| gint n_pages; |
| gint row = 0; |
| |
| demo = g_new0 (PgdPageDemo, 1); |
| |
| demo->doc = g_object_ref (document); |
| |
| n_pages = poppler_document_get_n_pages (document); |
| |
| vbox = gtk_vbox_new (FALSE, 12); |
| |
| hbox = gtk_hbox_new (FALSE, 6); |
| |
| label = gtk_label_new ("Page:"); |
| gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, TRUE, 0); |
| gtk_widget_show (label); |
| |
| page_selector = gtk_spin_button_new_with_range (1, n_pages, 1); |
| g_signal_connect (G_OBJECT (page_selector), "value-changed", |
| G_CALLBACK (pgd_page_page_selector_value_changed), |
| (gpointer)demo); |
| gtk_box_pack_start (GTK_BOX (hbox), page_selector, FALSE, TRUE, 0); |
| gtk_widget_show (page_selector); |
| |
| str = g_strdup_printf ("of %d", n_pages); |
| label = gtk_label_new (str); |
| gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, TRUE, 0); |
| gtk_widget_show (label); |
| g_free (str); |
| |
| button = gtk_button_new_with_label ("Get Info"); |
| g_signal_connect (G_OBJECT (button), "clicked", |
| G_CALLBACK (pgd_page_get_info), |
| (gpointer)demo); |
| gtk_box_pack_end (GTK_BOX (hbox), button, FALSE, FALSE, 0); |
| gtk_widget_show (button); |
| |
| gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, TRUE, 0); |
| gtk_widget_show (hbox); |
| |
| hbox = gtk_hbox_new (FALSE, 6); |
| |
| frame = gtk_frame_new (NULL); |
| gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_NONE); |
| label = gtk_label_new (NULL); |
| gtk_label_set_markup (GTK_LABEL (label), "<b>Page Properties</b>"); |
| gtk_frame_set_label_widget (GTK_FRAME (frame), label); |
| gtk_widget_show (label); |
| |
| alignment = gtk_alignment_new (0.5, 0.5, 1, 1); |
| gtk_alignment_set_padding (GTK_ALIGNMENT (alignment), 5, 5, 12, 5); |
| gtk_container_add (GTK_CONTAINER (frame), alignment); |
| gtk_widget_show (alignment); |
| |
| table = gtk_table_new (3, 2, FALSE); |
| |
| gtk_table_set_col_spacings (GTK_TABLE (table), 6); |
| gtk_table_set_row_spacings (GTK_TABLE (table), 6); |
| |
| pgd_table_add_property_with_value_widget (GTK_TABLE (table), "<b>Page Index:</b>", |
| &(demo->index), NULL, &row); |
| pgd_table_add_property_with_value_widget (GTK_TABLE (table), "<b>Page Label:</b>", |
| &(demo->label), NULL, &row); |
| pgd_table_add_property_with_value_widget (GTK_TABLE (table), "<b>Page Size:</b>", |
| &(demo->size), NULL, &row); |
| pgd_table_add_property_with_value_widget (GTK_TABLE (table), "<b>Page Duration:</b>", |
| &(demo->duration), NULL, &row); |
| |
| gtk_container_add (GTK_CONTAINER (alignment), table); |
| gtk_widget_show (table); |
| |
| gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0); |
| gtk_widget_show (frame); |
| |
| frame = gtk_frame_new (NULL); |
| gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_NONE); |
| gtk_frame_set_label_align (GTK_FRAME (frame), 0.5, 0.5); |
| label = gtk_label_new (NULL); |
| gtk_label_set_markup (GTK_LABEL (label), "<b>Page Thumbnail</b>"); |
| gtk_frame_set_label_widget (GTK_FRAME (frame), label); |
| gtk_widget_show (label); |
| |
| alignment = gtk_alignment_new (0.5, 0.5, 1, 1); |
| gtk_alignment_set_padding (GTK_ALIGNMENT (alignment), 5, 5, 12, 5); |
| gtk_container_add (GTK_CONTAINER (frame), alignment); |
| gtk_widget_show (alignment); |
| |
| thumnail_box = gtk_vbox_new (FALSE, 6); |
| |
| demo->thumbnail = gtk_image_new (); |
| gtk_box_pack_start (GTK_BOX (thumnail_box), demo->thumbnail, TRUE, TRUE, 0); |
| gtk_widget_show (demo->thumbnail); |
| |
| demo->thumbnail_size = gtk_label_new (NULL); |
| g_object_set (G_OBJECT (demo->thumbnail_size), "xalign", 0.5, NULL); |
| gtk_box_pack_start (GTK_BOX (thumnail_box), demo->thumbnail_size, TRUE, TRUE, 0); |
| gtk_widget_show (demo->thumbnail_size); |
| |
| gtk_container_add (GTK_CONTAINER (alignment), thumnail_box); |
| gtk_widget_show (thumnail_box); |
| |
| gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0); |
| gtk_widget_show (frame); |
| |
| gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, TRUE, 0); |
| gtk_widget_show (hbox); |
| |
| g_object_weak_ref (G_OBJECT (vbox), |
| (GWeakNotify)pgd_page_free, |
| (gpointer)demo); |
| |
| return vbox; |
| } |