glib/demo/transitions.c - third_party/poppler - Git at Google

 /*
  * 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 <gtk/gtk.h>

 #include "transitions.h"

 enum
 {
     TRANSITIONS_PAGE_COLUMN,
     TRANSITIONS_TYPE_COLUMN,
     TRANSITIONS_ALIGNMENT_COLUMN,
     TRANSITIONS_DIRECTION_COLUMN,
     TRANSITIONS_DURATION_COLUMN,
     TRANSITIONS_ANGLE_COLUMN,
     TRANSITIONS_SCALE_COLUMN,
     TRANSITIONS_RECTANGULAR_COLUMN,
     N_COLUMNS
 };

 typedef struct
 {
     PopplerDocument *doc;

     GtkWidget *treeview;
     GtkWidget *progress;

     guint idle_id;
 } PgdTransitionsDemo;

 static void pgd_transitions_free(PgdTransitionsDemo *demo)
 {
     if (!demo) {
         return;
     }

     if (demo->idle_id > 0) {
         g_source_remove(demo->idle_id);
         demo->idle_id = 0;
     }

     if (demo->doc) {
         g_object_unref(demo->doc);
         demo->doc = NULL;
     }

     g_free(demo);
 }

 static const gchar *transition_type_to_string(PopplerPageTransitionType type)
 {
     switch (type) {
     case POPPLER_PAGE_TRANSITION_REPLACE:
         return "Replace";
     case POPPLER_PAGE_TRANSITION_SPLIT:
         return "Split";
     case POPPLER_PAGE_TRANSITION_BLINDS:
         return "Blinds";
     case POPPLER_PAGE_TRANSITION_BOX:
         return "Box";
     case POPPLER_PAGE_TRANSITION_WIPE:
         return "Wipe";
     case POPPLER_PAGE_TRANSITION_DISSOLVE:
         return "Dissolve";
     case POPPLER_PAGE_TRANSITION_GLITTER:
         return "Glitter";
     case POPPLER_PAGE_TRANSITION_FLY:
         return "Fly";
     case POPPLER_PAGE_TRANSITION_PUSH:
         return "Push";
     case POPPLER_PAGE_TRANSITION_COVER:
         return "Cover";
     case POPPLER_PAGE_TRANSITION_UNCOVER:
         return "Uncover";
     case POPPLER_PAGE_TRANSITION_FADE:
         return "Fade";
     }

     return "Unknown";
 }

 static const gchar *transition_alignment_to_string(PopplerPageTransitionAlignment alignment)
 {
     return alignment == POPPLER_PAGE_TRANSITION_HORIZONTAL ? "Horizontal" : "Vertical";
 }

 static const gchar *transition_direction_to_string(PopplerPageTransitionDirection direction)
 {
     return direction == POPPLER_PAGE_TRANSITION_INWARD ? "Inward" : "Outward";
 }

 static void pgd_transitions_update_progress(PgdTransitionsDemo *demo, gint n_pages, gint scanned)
 {
     gchar *str;

     str = g_strdup_printf("Scanning transitions (%d%%)", MIN(scanned * 100 / n_pages, 100));
     gtk_progress_bar_set_text(GTK_PROGRESS_BAR(demo->progress), str);
     gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(demo->progress), MIN((gdouble)scanned / n_pages, 1.0));
     g_free(str);
 }

 static gboolean pgd_transitions_fill_model(PgdTransitionsDemo *demo)
 {
     GtkTreeModel *model;
     gint i, n_pages;

     n_pages = poppler_document_get_n_pages(demo->doc);

     model = gtk_tree_view_get_model(GTK_TREE_VIEW(demo->treeview));
     g_object_ref(model);

     for (i = 0; i < n_pages; i++) {
         PopplerPage *page;
         PopplerPageTransition *transition;

         pgd_transitions_update_progress(demo, n_pages, i);

         while (gtk_events_pending()) {
             gtk_main_iteration();
         }

         page = poppler_document_get_page(demo->doc, i);
         if (!page) {
             continue;
         }

         transition = poppler_page_get_transition(page);
         if (transition) {
             GtkTreeIter iter;
             gchar *npage;
             gchar *duration;
             gchar *angle;
             gchar *scale;

             npage = g_strdup_printf("%d", i + 1);
             duration = g_strdup_printf("%.2f", transition->duration_real);
             angle = g_strdup_printf("%d", transition->angle);
             scale = g_strdup_printf("%.2f", transition->scale);

             gtk_list_store_append(GTK_LIST_STORE(model), &iter);
             gtk_list_store_set(GTK_LIST_STORE(model), &iter, TRANSITIONS_PAGE_COLUMN, npage, TRANSITIONS_TYPE_COLUMN, transition_type_to_string(transition->type), TRANSITIONS_ALIGNMENT_COLUMN,
                                transition_alignment_to_string(transition->alignment), TRANSITIONS_DIRECTION_COLUMN, transition_direction_to_string(transition->direction), TRANSITIONS_DURATION_COLUMN, duration, TRANSITIONS_ANGLE_COLUMN,
                                angle, TRANSITIONS_SCALE_COLUMN, scale, TRANSITIONS_RECTANGULAR_COLUMN, transition->rectangular ? "Yes" : "No", -1);
             g_free(npage);
             g_free(duration);
             g_free(angle);
             g_free(scale);

             poppler_page_transition_free(transition);
         }

         g_object_unref(page);
     }

     pgd_transitions_update_progress(demo, n_pages, n_pages);
     g_object_unref(model);

     return FALSE;
 }

 static void pgd_transitions_scan_button_clicked(GtkButton *button, PgdTransitionsDemo *demo)
 {
     if (demo->idle_id > 0) {
         g_source_remove(demo->idle_id);
     }

     demo->idle_id = g_idle_add((GSourceFunc)pgd_transitions_fill_model, demo);
 }

 static GtkWidget *pgd_transitions_create_list(GtkTreeModel *model)
 {
     GtkWidget *treeview;
     GtkCellRenderer *renderer;

     treeview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
     gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(treeview), TRUE);
     gtk_tree_selection_set_mode(gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview)), GTK_SELECTION_NONE);

     renderer = gtk_cell_renderer_text_new();
     gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(treeview), 0, "Page", renderer, "text", TRANSITIONS_PAGE_COLUMN, NULL);
     renderer = gtk_cell_renderer_text_new();
     gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(treeview), 1, "Type", renderer, "text", TRANSITIONS_TYPE_COLUMN, NULL);
     renderer = gtk_cell_renderer_text_new();
     gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(treeview), 2, "Alignment", renderer, "text", TRANSITIONS_ALIGNMENT_COLUMN, NULL);
     renderer = gtk_cell_renderer_text_new();
     gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(treeview), 3, "Direction", renderer, "text", TRANSITIONS_DIRECTION_COLUMN, NULL);
     renderer = gtk_cell_renderer_text_new();
     gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(treeview), 4, "Duration", renderer, "text", TRANSITIONS_DURATION_COLUMN, NULL);
     renderer = gtk_cell_renderer_text_new();
     gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(treeview), 5, "Angle", renderer, "text", TRANSITIONS_ANGLE_COLUMN, NULL);
     renderer = gtk_cell_renderer_text_new();
     gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(treeview), 6, "Scale", renderer, "text", TRANSITIONS_SCALE_COLUMN, NULL);
     renderer = gtk_cell_renderer_text_new();
     gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(treeview), 7, "Rectangular", renderer, "text", TRANSITIONS_RECTANGULAR_COLUMN, NULL);
     return treeview;
 }

 GtkWidget *pgd_transitions_create_widget(PopplerDocument *document)
 {
     PgdTransitionsDemo *demo;
     GtkWidget *vbox;
     GtkListStore *model;
     GtkWidget *swindow;
     GtkWidget *hbox, *button;

     demo = g_new0(PgdTransitionsDemo, 1);

     demo->doc = g_object_ref(document);

     vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 12);

     hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 6);

     demo->progress = gtk_progress_bar_new();
     gtk_progress_bar_set_ellipsize(GTK_PROGRESS_BAR(demo->progress), PANGO_ELLIPSIZE_END);
     gtk_box_pack_start(GTK_BOX(hbox), demo->progress, TRUE, TRUE, 0);
     gtk_widget_show(demo->progress);

     button = gtk_button_new_with_label("Scan");
     g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(pgd_transitions_scan_button_clicked), (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, 6);
     gtk_widget_show(hbox);

     swindow = gtk_scrolled_window_new(NULL, NULL);
     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(swindow), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);

     model = gtk_list_store_new(N_COLUMNS, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING);
     demo->treeview = pgd_transitions_create_list(GTK_TREE_MODEL(model));
     g_object_unref(model);

     gtk_container_add(GTK_CONTAINER(swindow), demo->treeview);
     gtk_widget_show(demo->treeview);

     gtk_box_pack_start(GTK_BOX(vbox), swindow, TRUE, TRUE, 0);
     gtk_widget_show(swindow);

     g_object_weak_ref(G_OBJECT(swindow), (GWeakNotify)pgd_transitions_free, (gpointer)demo);

     return vbox;
 }
	/*
	* 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 <gtk/gtk.h>

	#include "transitions.h"

	enum
	{
	TRANSITIONS_PAGE_COLUMN,
	TRANSITIONS_TYPE_COLUMN,
	TRANSITIONS_ALIGNMENT_COLUMN,
	TRANSITIONS_DIRECTION_COLUMN,
	TRANSITIONS_DURATION_COLUMN,
	TRANSITIONS_ANGLE_COLUMN,
	TRANSITIONS_SCALE_COLUMN,
	TRANSITIONS_RECTANGULAR_COLUMN,
	N_COLUMNS
	};

	typedef struct
	{
	PopplerDocument *doc;

	GtkWidget *treeview;
	GtkWidget *progress;

	guint idle_id;
	} PgdTransitionsDemo;

	static void pgd_transitions_free(PgdTransitionsDemo *demo)
	{
	if (!demo) {
	return;
	}

	if (demo->idle_id > 0) {
	g_source_remove(demo->idle_id);
	demo->idle_id = 0;
	}

	if (demo->doc) {
	g_object_unref(demo->doc);
	demo->doc = NULL;
	}

	g_free(demo);
	}

	static const gchar *transition_type_to_string(PopplerPageTransitionType type)
	{
	switch (type) {
	case POPPLER_PAGE_TRANSITION_REPLACE:
	return "Replace";
	case POPPLER_PAGE_TRANSITION_SPLIT:
	return "Split";
	case POPPLER_PAGE_TRANSITION_BLINDS:
	return "Blinds";
	case POPPLER_PAGE_TRANSITION_BOX:
	return "Box";
	case POPPLER_PAGE_TRANSITION_WIPE:
	return "Wipe";
	case POPPLER_PAGE_TRANSITION_DISSOLVE:
	return "Dissolve";
	case POPPLER_PAGE_TRANSITION_GLITTER:
	return "Glitter";
	case POPPLER_PAGE_TRANSITION_FLY:
	return "Fly";
	case POPPLER_PAGE_TRANSITION_PUSH:
	return "Push";
	case POPPLER_PAGE_TRANSITION_COVER:
	return "Cover";
	case POPPLER_PAGE_TRANSITION_UNCOVER:
	return "Uncover";
	case POPPLER_PAGE_TRANSITION_FADE:
	return "Fade";
	}

	return "Unknown";
	}

	static const gchar *transition_alignment_to_string(PopplerPageTransitionAlignment alignment)
	{
	return alignment == POPPLER_PAGE_TRANSITION_HORIZONTAL ? "Horizontal" : "Vertical";
	}

	static const gchar *transition_direction_to_string(PopplerPageTransitionDirection direction)
	{
	return direction == POPPLER_PAGE_TRANSITION_INWARD ? "Inward" : "Outward";
	}

	static void pgd_transitions_update_progress(PgdTransitionsDemo *demo, gint n_pages, gint scanned)
	{
	gchar *str;

	str = g_strdup_printf("Scanning transitions (%d%%)", MIN(scanned * 100 / n_pages, 100));
	gtk_progress_bar_set_text(GTK_PROGRESS_BAR(demo->progress), str);
	gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(demo->progress), MIN((gdouble)scanned / n_pages, 1.0));
	g_free(str);
	}

	static gboolean pgd_transitions_fill_model(PgdTransitionsDemo *demo)
	{
	GtkTreeModel *model;
	gint i, n_pages;

	n_pages = poppler_document_get_n_pages(demo->doc);

	model = gtk_tree_view_get_model(GTK_TREE_VIEW(demo->treeview));
	g_object_ref(model);

	for (i = 0; i < n_pages; i++) {
	PopplerPage *page;
	PopplerPageTransition *transition;

	pgd_transitions_update_progress(demo, n_pages, i);

	while (gtk_events_pending()) {
	gtk_main_iteration();
	}

	page = poppler_document_get_page(demo->doc, i);
	if (!page) {
	continue;
	}

	transition = poppler_page_get_transition(page);
	if (transition) {
	GtkTreeIter iter;
	gchar *npage;
	gchar *duration;
	gchar *angle;
	gchar *scale;

	npage = g_strdup_printf("%d", i + 1);
	duration = g_strdup_printf("%.2f", transition->duration_real);
	angle = g_strdup_printf("%d", transition->angle);
	scale = g_strdup_printf("%.2f", transition->scale);

	gtk_list_store_append(GTK_LIST_STORE(model), &iter);
	gtk_list_store_set(GTK_LIST_STORE(model), &iter, TRANSITIONS_PAGE_COLUMN, npage, TRANSITIONS_TYPE_COLUMN, transition_type_to_string(transition->type), TRANSITIONS_ALIGNMENT_COLUMN,
	transition_alignment_to_string(transition->alignment), TRANSITIONS_DIRECTION_COLUMN, transition_direction_to_string(transition->direction), TRANSITIONS_DURATION_COLUMN, duration, TRANSITIONS_ANGLE_COLUMN,
	angle, TRANSITIONS_SCALE_COLUMN, scale, TRANSITIONS_RECTANGULAR_COLUMN, transition->rectangular ? "Yes" : "No", -1);
	g_free(npage);
	g_free(duration);
	g_free(angle);
	g_free(scale);

	poppler_page_transition_free(transition);
	}

	g_object_unref(page);
	}

	pgd_transitions_update_progress(demo, n_pages, n_pages);
	g_object_unref(model);

	return FALSE;
	}

	static void pgd_transitions_scan_button_clicked(GtkButton button, PgdTransitionsDemo demo)
	{
	if (demo->idle_id > 0) {
	g_source_remove(demo->idle_id);
	}

	demo->idle_id = g_idle_add((GSourceFunc)pgd_transitions_fill_model, demo);
	}

	static GtkWidget pgd_transitions_create_list(GtkTreeModel model)
	{
	GtkWidget *treeview;
	GtkCellRenderer *renderer;

	treeview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
	gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(treeview), TRUE);
	gtk_tree_selection_set_mode(gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview)), GTK_SELECTION_NONE);

	renderer = gtk_cell_renderer_text_new();
	gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(treeview), 0, "Page", renderer, "text", TRANSITIONS_PAGE_COLUMN, NULL);
	renderer = gtk_cell_renderer_text_new();
	gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(treeview), 1, "Type", renderer, "text", TRANSITIONS_TYPE_COLUMN, NULL);
	renderer = gtk_cell_renderer_text_new();
	gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(treeview), 2, "Alignment", renderer, "text", TRANSITIONS_ALIGNMENT_COLUMN, NULL);
	renderer = gtk_cell_renderer_text_new();
	gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(treeview), 3, "Direction", renderer, "text", TRANSITIONS_DIRECTION_COLUMN, NULL);
	renderer = gtk_cell_renderer_text_new();
	gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(treeview), 4, "Duration", renderer, "text", TRANSITIONS_DURATION_COLUMN, NULL);
	renderer = gtk_cell_renderer_text_new();
	gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(treeview), 5, "Angle", renderer, "text", TRANSITIONS_ANGLE_COLUMN, NULL);
	renderer = gtk_cell_renderer_text_new();
	gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(treeview), 6, "Scale", renderer, "text", TRANSITIONS_SCALE_COLUMN, NULL);
	renderer = gtk_cell_renderer_text_new();
	gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(treeview), 7, "Rectangular", renderer, "text", TRANSITIONS_RECTANGULAR_COLUMN, NULL);
	return treeview;
	}

	GtkWidget pgd_transitions_create_widget(PopplerDocument document)
	{
	PgdTransitionsDemo *demo;
	GtkWidget *vbox;
	GtkListStore *model;
	GtkWidget *swindow;
	GtkWidget hbox, button;

	demo = g_new0(PgdTransitionsDemo, 1);

	demo->doc = g_object_ref(document);

	vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 12);

	hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 6);

	demo->progress = gtk_progress_bar_new();
	gtk_progress_bar_set_ellipsize(GTK_PROGRESS_BAR(demo->progress), PANGO_ELLIPSIZE_END);
	gtk_box_pack_start(GTK_BOX(hbox), demo->progress, TRUE, TRUE, 0);
	gtk_widget_show(demo->progress);

	button = gtk_button_new_with_label("Scan");
	g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(pgd_transitions_scan_button_clicked), (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, 6);
	gtk_widget_show(hbox);

	swindow = gtk_scrolled_window_new(NULL, NULL);
	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(swindow), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);

	model = gtk_list_store_new(N_COLUMNS, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING);
	demo->treeview = pgd_transitions_create_list(GTK_TREE_MODEL(model));
	g_object_unref(model);

	gtk_container_add(GTK_CONTAINER(swindow), demo->treeview);
	gtk_widget_show(demo->treeview);

	gtk_box_pack_start(GTK_BOX(vbox), swindow, TRUE, TRUE, 0);
	gtk_widget_show(swindow);

	g_object_weak_ref(G_OBJECT(swindow), (GWeakNotify)pgd_transitions_free, (gpointer)demo);

	return vbox;
	}