| /* |
| * Copyright (C) 2008 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 "images.h" |
| |
| enum { |
| IMAGES_ID_COLUMN, |
| IMAGES_X1_COLUMN, |
| IMAGES_Y1_COLUMN, |
| IMAGES_X2_COLUMN, |
| IMAGES_Y2_COLUMN, |
| N_COLUMNS |
| }; |
| |
| typedef struct { |
| PopplerDocument *doc; |
| |
| GtkListStore *model; |
| GtkWidget *timer_label; |
| GtkWidget *image_view; |
| |
| gint page; |
| } PgdImagesDemo; |
| |
| static void |
| pgd_images_free (PgdImagesDemo *demo) |
| { |
| if (!demo) |
| return; |
| |
| if (demo->doc) { |
| g_object_unref (demo->doc); |
| demo->doc = NULL; |
| } |
| |
| if (demo->model) { |
| g_object_unref (demo->model); |
| demo->model = NULL; |
| } |
| |
| g_free (demo); |
| } |
| |
| static gboolean |
| pgd_image_view_drawing_area_expose (GtkWidget *area, |
| GdkEventExpose *event, |
| GtkWidget *image_view) |
| { |
| cairo_t *cr; |
| cairo_surface_t *image; |
| |
| image = g_object_get_data (G_OBJECT (image_view), "image-surface"); |
| if (!image) |
| return FALSE; |
| |
| gtk_widget_set_size_request (area, |
| cairo_image_surface_get_width (image), |
| cairo_image_surface_get_height (image)); |
| |
| cr = gdk_cairo_create (gtk_widget_get_window (area)); |
| cairo_set_source_surface (cr, image, 0, 0); |
| cairo_paint (cr); |
| cairo_destroy (cr); |
| |
| return TRUE; |
| } |
| |
| static GtkWidget * |
| pgd_image_view_new () |
| { |
| GtkWidget *swindow; |
| GtkWidget *darea; |
| |
| swindow = gtk_scrolled_window_new (NULL, NULL); |
| |
| darea = gtk_drawing_area_new (); |
| g_signal_connect (G_OBJECT (darea), "expose_event", |
| G_CALLBACK (pgd_image_view_drawing_area_expose), |
| (gpointer)swindow); |
| gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow), |
| GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC); |
| gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (swindow), |
| darea); |
| gtk_widget_show (darea); |
| |
| return swindow; |
| } |
| |
| static void |
| pgd_image_view_set_image (GtkWidget *image_view, |
| cairo_surface_t *image) |
| { |
| g_object_set_data_full (G_OBJECT (image_view), "image-surface", |
| image, |
| (GDestroyNotify)cairo_surface_destroy); |
| gtk_widget_queue_draw (image_view); |
| } |
| |
| static void |
| pgd_images_get_images (GtkWidget *button, |
| PgdImagesDemo *demo) |
| { |
| PopplerPage *page; |
| GList *mapping, *l; |
| gint n_images; |
| GTimer *timer; |
| |
| gtk_list_store_clear (demo->model); |
| pgd_image_view_set_image (demo->image_view, NULL); |
| |
| page = poppler_document_get_page (demo->doc, demo->page); |
| if (!page) |
| return; |
| |
| timer = g_timer_new (); |
| mapping = poppler_page_get_image_mapping (page); |
| g_timer_stop (timer); |
| |
| n_images = g_list_length (mapping); |
| if (n_images > 0) { |
| gchar *str; |
| |
| str = g_strdup_printf ("<i>%d images found in %.4f seconds</i>", |
| n_images, g_timer_elapsed (timer, NULL)); |
| gtk_label_set_markup (GTK_LABEL (demo->timer_label), str); |
| g_free (str); |
| } else { |
| gtk_label_set_markup (GTK_LABEL (demo->timer_label), "<i>No images found</i>"); |
| } |
| |
| g_timer_destroy (timer); |
| |
| for (l = mapping; l; l = g_list_next (l)) { |
| PopplerImageMapping *imapping; |
| GtkTreeIter iter; |
| gchar *x1, *y1, *x2, *y2; |
| |
| imapping = (PopplerImageMapping *)l->data; |
| |
| x1 = g_strdup_printf ("%.2f", imapping->area.x1); |
| y1 = g_strdup_printf ("%.2f", imapping->area.y1); |
| x2 = g_strdup_printf ("%.2f", imapping->area.x2); |
| y2 = g_strdup_printf ("%.2f", imapping->area.y2); |
| |
| gtk_list_store_append (demo->model, &iter); |
| gtk_list_store_set (demo->model, &iter, |
| IMAGES_ID_COLUMN, imapping->image_id, |
| IMAGES_X1_COLUMN, x1, |
| IMAGES_Y1_COLUMN, y1, |
| IMAGES_X2_COLUMN, x2, |
| IMAGES_Y2_COLUMN, y2, |
| -1); |
| g_free (x1); |
| g_free (y1); |
| g_free (x2); |
| g_free (y2); |
| } |
| |
| poppler_page_free_image_mapping (mapping); |
| g_object_unref (page); |
| } |
| |
| static void |
| pgd_images_page_selector_value_changed (GtkSpinButton *spinbutton, |
| PgdImagesDemo *demo) |
| { |
| demo->page = (gint)gtk_spin_button_get_value (spinbutton) - 1; |
| } |
| |
| static void |
| pgd_images_selection_changed (GtkTreeSelection *treeselection, |
| PgdImagesDemo *demo) |
| { |
| GtkTreeModel *model; |
| GtkTreeIter iter; |
| |
| if (gtk_tree_selection_get_selected (treeselection, &model, &iter)) { |
| PopplerPage *page; |
| gint image_id; |
| |
| gtk_tree_model_get (model, &iter, |
| IMAGES_ID_COLUMN, &image_id, |
| -1); |
| page = poppler_document_get_page (demo->doc, demo->page); |
| pgd_image_view_set_image (demo->image_view, |
| poppler_page_get_image (page, image_id)); |
| g_object_unref (page); |
| |
| } |
| } |
| |
| GtkWidget * |
| pgd_images_create_widget (PopplerDocument *document) |
| { |
| PgdImagesDemo *demo; |
| GtkWidget *label; |
| GtkWidget *vbox; |
| GtkWidget *hbox, *page_selector; |
| GtkWidget *button; |
| GtkWidget *hpaned; |
| GtkWidget *swindow, *treeview; |
| GtkTreeSelection *selection; |
| GtkCellRenderer *renderer; |
| gchar *str; |
| gint n_pages; |
| |
| demo = g_new0 (PgdImagesDemo, 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_images_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 Images"); |
| g_signal_connect (G_OBJECT (button), "clicked", |
| G_CALLBACK (pgd_images_get_images), |
| (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); |
| |
| demo->timer_label = gtk_label_new (NULL); |
| gtk_label_set_markup (GTK_LABEL (demo->timer_label), "<i>No images found</i>"); |
| g_object_set (G_OBJECT (demo->timer_label), "xalign", 1.0, NULL); |
| gtk_box_pack_start (GTK_BOX (vbox), demo->timer_label, FALSE, TRUE, 0); |
| gtk_widget_show (demo->timer_label); |
| |
| hpaned = gtk_hpaned_new (); |
| |
| demo->image_view = pgd_image_view_new (); |
| |
| swindow = gtk_scrolled_window_new (NULL, NULL); |
| gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow), |
| GTK_POLICY_AUTOMATIC, |
| GTK_POLICY_AUTOMATIC); |
| |
| demo->model = gtk_list_store_new (N_COLUMNS, G_TYPE_INT, |
| G_TYPE_STRING, G_TYPE_STRING, |
| G_TYPE_STRING, G_TYPE_STRING); |
| treeview = gtk_tree_view_new_with_model (GTK_TREE_MODEL (demo->model)); |
| |
| renderer = gtk_cell_renderer_text_new (); |
| renderer = gtk_cell_renderer_text_new (); |
| gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview), |
| 0, "Image", |
| renderer, |
| "text", IMAGES_ID_COLUMN, |
| NULL); |
| |
| renderer = gtk_cell_renderer_text_new (); |
| gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview), |
| 1, "X1", |
| renderer, |
| "text", IMAGES_X1_COLUMN, |
| NULL); |
| renderer = gtk_cell_renderer_text_new (); |
| gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview), |
| 2, "Y1", |
| renderer, |
| "text", IMAGES_Y1_COLUMN, |
| NULL); |
| renderer = gtk_cell_renderer_text_new (); |
| gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview), |
| 3, "X2", |
| renderer, |
| "text", IMAGES_X2_COLUMN, |
| NULL); |
| renderer = gtk_cell_renderer_text_new (); |
| gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview), |
| 4, "Y2", |
| renderer, |
| "text", IMAGES_Y2_COLUMN, |
| NULL); |
| |
| selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview)); |
| g_signal_connect (G_OBJECT (selection), "changed", |
| G_CALLBACK (pgd_images_selection_changed), |
| (gpointer)demo); |
| |
| gtk_container_add (GTK_CONTAINER (swindow), treeview); |
| gtk_widget_show (treeview); |
| |
| gtk_paned_add1 (GTK_PANED (hpaned), swindow); |
| gtk_widget_show (swindow); |
| |
| gtk_paned_add2 (GTK_PANED (hpaned), demo->image_view); |
| gtk_widget_show (demo->image_view); |
| |
| gtk_paned_set_position (GTK_PANED (hpaned), 300); |
| |
| gtk_box_pack_start (GTK_BOX (vbox), hpaned, TRUE, TRUE, 0); |
| gtk_widget_show (hpaned); |
| |
| g_object_weak_ref (G_OBJECT (vbox), |
| (GWeakNotify)pgd_images_free, |
| demo); |
| |
| return vbox; |
| } |