blob: 6e987d2075595a3c5fb9a854f0cbd1d00e486893 [file] [log] [blame]
/*
* 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;
}