+/*
+ * Copyright (C) 2007 Tilman Sauerbeck (tilman at code-monkey de)
+ *
+ * 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 of the
+ * License, 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <gtk/gtk.h>
+#include <poppler.h>
+
+#include <limits.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+#include "rakt-window.h"
+
+typedef struct RaktWindowPriv RaktWindowPriv;
+
+struct RaktWindowPriv {
+ GtkWidget *content_vbox;
+
+ /* Menu & toolbar */
+ GtkUIManager *ui_manager;
+ GtkAction *action_prev;
+ GtkAction *action_next;
+
+ GtkWidget *image;
+ GdkPixbuf *pixbuf;
+ PopplerDocument *document;
+ gint page_no;
+};
+
+static void window_finalize (GObject *object);
+
+static void on_add_widget (GtkUIManager *merge, GtkWidget *widget, RaktWindow *window);
+
+static void on_action_quit (GtkAction *action, RaktWindow *window);
+static void on_action_open (GtkAction *action, RaktWindow *window);
+static void on_action_go_next (GtkAction *action, RaktWindow *window);
+static void on_action_go_previous (GtkAction *action, RaktWindow *window);
+static void on_action_about (GtkAction *action, RaktWindow *window);
+
+static const GtkActionEntry action_entries[] = {
+ {
+ "FileMenu", NULL, "_File", NULL, NULL, NULL
+ },
+ {
+ "HelpMenu", NULL, "_Help", NULL, NULL, NULL
+ },
+ {
+ "Open", GTK_STOCK_OPEN,
+ "_Open", "<control>O", "Open a PDF file",
+ G_CALLBACK (on_action_open)
+ },
+ {
+ "Next", GTK_STOCK_GO_FORWARD, "_Next",
+ "<control>n", "Next",
+ G_CALLBACK (on_action_go_next)
+ },
+ {
+ "Previous", GTK_STOCK_GO_BACK, "_Previous",
+ "<control>p", "Previous",
+ G_CALLBACK (on_action_go_previous)
+ },
+ {
+ "Quit", GTK_STOCK_QUIT,
+ "_Quit", "<control>Q", "Quit the application",
+ G_CALLBACK (on_action_quit)
+ },
+ {
+ "About", GTK_STOCK_ABOUT,
+ "_About", NULL, "About this application",
+ G_CALLBACK (on_action_about)
+ }
+};
+
+static const gchar *ui_layout =
+ "<ui>"
+ " <menubar name='MenuBar'>"
+ " <menu action='FileMenu'>"
+ " <menuitem action='Open'/>"
+ " <separator action='Sep1'/>"
+ " <menuitem action='Quit'/>"
+ " </menu>"
+ " <menu action='HelpMenu'>"
+ " <menuitem action='About'/>"
+ " </menu>"
+ " </menubar>"
+ " <toolbar name='ToolBar'>"
+ " <toolitem action='Open'/>"
+ " <toolitem action='Previous'/>"
+ " <toolitem action='Next'/>"
+ " </toolbar>"
+ "</ui>";
+
+G_DEFINE_TYPE (RaktWindow, rakt_window, GTK_TYPE_WINDOW)
+
+#define GET_PRIV(obj) \
+ (G_TYPE_INSTANCE_GET_PRIVATE ((obj), RAKT_TYPE_WINDOW, RaktWindowPriv))
+
+static void
+rakt_window_class_init (RaktWindowClass *class)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (class);
+
+ object_class->finalize = window_finalize;
+
+ g_type_class_add_private (object_class, sizeof (RaktWindowPriv));
+}
+
+static void
+render_page (RaktWindow *window)
+{
+ RaktWindowPriv *priv;
+ PopplerPage *page;
+ double tmpw, tmph;
+ int width, height, n_pages;
+
+ priv = GET_PRIV (window);
+
+ n_pages = poppler_document_get_n_pages (priv->document);
+ gtk_action_set_sensitive (priv->action_prev, priv->page_no > 0);
+ gtk_action_set_sensitive (priv->action_next, priv->page_no < n_pages);
+
+ page = poppler_document_get_page (priv->document, priv->page_no);
+
+ poppler_page_get_size (page, &tmpw, &tmph);
+
+ width = (int) tmpw;
+ height = (int) tmph;
+
+ priv->pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8,
+ width, height);
+
+ poppler_page_render_to_pixbuf (page, 0, 0, width, height, 1.0, 0,
+ priv->pixbuf);
+ gtk_image_set_from_pixbuf (GTK_IMAGE (priv->image), priv->pixbuf);
+}
+
+static void
+open_document (RaktWindow *window, gchar *file)
+{
+ RaktWindowPriv *priv;
+ GError *error = NULL;
+ gchar real[PATH_MAX], buf[16 + PATH_MAX];
+
+ priv = GET_PRIV (window);
+
+ realpath (file, real);
+
+ g_strlcpy (buf, "file://", sizeof (buf));
+ g_strlcat (buf, real, sizeof (buf));
+
+ priv->document = poppler_document_new_from_file (buf, NULL, &error);
+
+ priv->page_no = 0;
+ render_page (window);
+}
+
+static void
+window_create_menu (RaktWindow *window)
+{
+ RaktWindowPriv *priv;
+ GtkActionGroup *action_group;
+ GError *error = NULL;
+
+ priv = GET_PRIV (window);
+
+ priv->ui_manager = gtk_ui_manager_new ();
+
+ g_signal_connect (priv->ui_manager,
+ "add_widget",
+ G_CALLBACK (on_add_widget),
+ window);
+
+ action_group = gtk_action_group_new ("Actions");
+ gtk_action_group_add_actions (action_group, action_entries,
+ G_N_ELEMENTS (action_entries), window);
+ gtk_ui_manager_insert_action_group (priv->ui_manager, action_group, 0);
+ g_object_unref (action_group);
+
+ gtk_ui_manager_add_ui_from_string (priv->ui_manager, ui_layout, -1, &error);
+
+ if (error)
+ g_error ("Couldn't create UI: %s\n", error->message);
+
+ gtk_ui_manager_ensure_update (priv->ui_manager);
+
+ priv->action_prev = gtk_ui_manager_get_action (priv->ui_manager,
+ "ui/ToolBar/Previous");
+ priv->action_next = gtk_ui_manager_get_action (priv->ui_manager,
+ "ui/ToolBar/Next");
+
+ gtk_action_set_sensitive (priv->action_prev, false);
+ gtk_action_set_sensitive (priv->action_next, false);
+}
+
+static gboolean
+on_delete_event (GtkWidget *widget, GdkEvent *event, gpointer user_data)
+{
+ gtk_main_quit ();
+
+ return FALSE;
+}
+
+static void
+rakt_window_init (RaktWindow *window)
+{
+ RaktWindowPriv *priv;
+
+ priv = GET_PRIV (window);
+
+ gtk_window_set_default_size (GTK_WINDOW (window), 640, 480);
+ gtk_window_set_position (GTK_WINDOW (window), GTK_WIN_POS_CENTER);
+
+ priv->content_vbox = gtk_vbox_new (FALSE, 0);
+ gtk_widget_show (priv->content_vbox);
+ gtk_container_add (GTK_CONTAINER (window), priv->content_vbox);
+
+ window_create_menu (window);
+
+ priv->image = gtk_image_new ();
+
+ gtk_widget_show (priv->image);
+ gtk_box_pack_start (GTK_BOX (priv->content_vbox), priv->image,
+ TRUE, TRUE, 0);
+
+ g_signal_connect (GTK_WINDOW (window), "delete-event",
+ G_CALLBACK (on_delete_event), NULL);
+}
+
+static void
+window_finalize (GObject *object)
+{
+ RaktWindowPriv *priv;
+
+ priv = GET_PRIV (object);
+
+ g_object_unref (priv->ui_manager);
+
+ G_OBJECT_CLASS (rakt_window_parent_class)->finalize (object);
+}
+
+static void
+on_add_widget (GtkUIManager *merge, GtkWidget *widget, RaktWindow *window)
+{
+ RaktWindowPriv *priv;
+
+ priv = GET_PRIV (window);
+
+ gtk_box_pack_start (GTK_BOX (priv->content_vbox), widget, FALSE, FALSE, 0);
+}
+
+static void
+on_action_quit (GtkAction *action, RaktWindow *window)
+{
+ gtk_main_quit ();
+}
+
+static void
+on_action_open (GtkAction *action, RaktWindow *window)
+{
+ GtkWidget *dialog;
+ GtkFileFilter *filter;
+ gint n;
+
+ dialog = gtk_file_chooser_dialog_new ("Open PDF",
+ GTK_WINDOW (window),
+ GTK_FILE_CHOOSER_ACTION_OPEN,
+ GTK_STOCK_OPEN,
+ GTK_RESPONSE_ACCEPT,
+ GTK_STOCK_CANCEL,
+ GTK_RESPONSE_CANCEL, NULL);
+
+ filter = gtk_file_filter_new ();
+ gtk_file_filter_set_name (filter, "PDF files");
+ gtk_file_filter_add_pattern (filter, "*.pdf");
+
+ gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
+
+ /* now run the dialog */
+ n = gtk_dialog_run (GTK_DIALOG (dialog));
+
+ if (n == GTK_RESPONSE_ACCEPT) {
+ gchar *file;
+
+ file = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
+ open_document (window, file);
+ }
+
+ gtk_widget_destroy (dialog);
+}
+
+static void
+on_action_go_next (GtkAction *action, RaktWindow *window)
+{
+ RaktWindowPriv *priv;
+
+ priv = GET_PRIV (window);
+
+ priv->page_no++;
+ render_page (window);
+}
+
+static void
+on_action_go_previous (GtkAction *action, RaktWindow *window)
+{
+ RaktWindowPriv *priv;
+
+ priv = GET_PRIV (window);
+
+ priv->page_no--;
+ render_page (window);
+}
+
+static void
+on_action_about (GtkAction *action, RaktWindow *window)
+{
+ const gchar *authors[] = {
+ "Tilman Sauerbeck",
+ NULL
+ };
+
+ gtk_show_about_dialog (GTK_WINDOW (window),
+ "name", PACKAGE_NAME,
+ "copyright", "Copyright (c) 2007 Tilman Sauerbeck",
+ "version", VERSION,
+ "authors", authors,
+ NULL);
+}
+
+GtkWidget *
+rakt_window_new (void)
+{
+ return g_object_new (RAKT_TYPE_WINDOW, NULL);
+}
projects / raktpdf.git / commitdiff