blob: bdb7c608513fa6e45b3863fcf5404c032b0d5fe3 [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_draw(GtkWidget *area, cairo_t *cr, GtkWidget *image_view)
{
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));
cairo_set_source_surface(cr, image, 0, 0);
cairo_paint(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), "draw", G_CALLBACK(pgd_image_view_drawing_area_draw), (gpointer)swindow);
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(swindow), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
#if GTK_CHECK_VERSION(3, 7, 8)
gtk_container_add(GTK_CONTAINER(swindow), darea);
#else
gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(swindow), darea);
#endif
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_box_new(GTK_ORIENTATION_VERTICAL, 12);
hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 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_paned_new(GTK_ORIENTATION_HORIZONTAL);
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;
}