gstreamer/editor/gsteditorprojectview.c

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/* Gnome-Streamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <gnome.h>
#include <gst/gst.h>
#include <sys/stat.h>
#include <unistd.h>
#include <glade/glade.h>
#include "gsteditorproject.h"
#include "gsteditorpalette.h"
#include "gsteditorproperty.h"
#include "gsteditorimage.h"
/* class functions */
static void gst_editor_project_view_class_init (GstEditorProjectViewClass *klass);
static void gst_editor_project_view_init (GstEditorProjectView *project_view);
static void gst_editor_project_view_set_arg (GtkObject *object, GtkArg *arg, guint id);
static void gst_editor_project_view_get_arg (GtkObject *object, GtkArg *arg, guint id);
enum {
ARG_0,
};
enum {
LAST_SIGNAL
};
static GtkObjectClass *parent_class;
/* static guint gst_editor_project_view_signals[LAST_SIGNAL] = { 0 }; */
GtkType
gst_editor_project_view_get_type(void)
{
static GtkType project_view_type = 0;
if (!project_view_type) {
static const GtkTypeInfo project_view_info = {
"GstEditorProjectView",
sizeof(GstEditorProjectView),
sizeof(GstEditorProjectViewClass),
(GtkClassInitFunc)gst_editor_project_view_class_init,
(GtkObjectInitFunc)gst_editor_project_view_init,
NULL,
NULL,
(GtkClassInitFunc)NULL,
};
project_view_type = gtk_type_unique(gtk_object_get_type(),&project_view_info);
}
return project_view_type;
}
static void
gst_editor_project_view_class_init (GstEditorProjectViewClass *klass)
{
GtkObjectClass *object_class;
object_class = (GtkObjectClass*)klass;
parent_class = gtk_type_class(gtk_object_get_type());
object_class->set_arg = gst_editor_project_view_set_arg;
object_class->get_arg = gst_editor_project_view_get_arg;
}
static void
gst_editor_project_view_init (GstEditorProjectView *project)
{
}
typedef struct {
GstEditorProjectView *view;
GModule *symbols;
} connect_struct;
/* we need more control here so... */
static void
gst_editor_project_connect_func (const gchar *handler_name,
GtkObject *object,
const gchar *signal_name,
const gchar *signal_data,
GtkObject *connect_object,
gboolean after,
gpointer user_data)
{
GtkSignalFunc func;
connect_struct *data = (connect_struct *)user_data;
if (!g_module_symbol(data->symbols, handler_name, (gpointer *)&func))
g_warning("GstEditorProject: could not find signal handler '%s'.", handler_name);
else {
if (after)
gtk_signal_connect_after(object, signal_name, func, (gpointer) data->view);
else
gtk_signal_connect(object, signal_name, func, (gpointer) data->view);
}
}
static void
gst_editor_project_element_selected (GstEditorProjectView *view,
GstElementFactory *factory, GstEditorPalette *palette)
{
GstElement *element;
element = gst_elementfactory_create (factory, "new_element");
g_return_if_fail(element != NULL);
g_return_if_fail(GST_IS_ELEMENT(element));
gst_editor_project_add_toplevel_element(view->project, element);
}
static void
on_name_change (GstEditorProjectView *view,
GstEditorElement *element, GstEditor *editor)
{
gint row;
gchar *text;
guint8 spacing;
GdkPixmap *pixmap;
GdkBitmap *mask;
row = gtk_clist_find_row_from_data(GTK_CLIST(view->list), editor);
gtk_clist_get_pixtext(GTK_CLIST(view->list), row, 0, &text, &spacing, &pixmap, &mask);
gtk_clist_set_pixtext(GTK_CLIST(view->list), row, 0, gst_editor_get_name(editor),
spacing, pixmap, mask);
}
static void
view_on_element_added (GstEditorProjectView *view, GstElement *element)
{
gchar *name;
gint row;
GstEditorImage *image;
GstEditor *editor;
image = gst_editor_image_get_for_type(GTK_OBJECT_TYPE(element));
name = (gchar *)gst_element_get_name(element);
row = gtk_clist_append(GTK_CLIST(view->list), &name);
editor = gst_editor_new(element);
g_signal_connect_swapped(G_OBJECT (editor), "name_changed",
G_CALLBACK (on_name_change), G_OBJECT(view));
gtk_clist_set_row_data(GTK_CLIST(view->list), row, editor);
gtk_clist_set_pixtext(GTK_CLIST(view->list), row, 0, name, 3, image->pixmap, image->bitmap);
}
typedef struct {
GtkWidget *selection;
GstEditorProjectView *view;
} file_select;
static void
on_save_as_file_selected (GtkWidget *button,
file_select *data)
{
GtkWidget *selector = data->selection;
GstEditorProjectView *view = data->view;
gchar *file_name = gtk_file_selection_get_filename (GTK_FILE_SELECTION(selector));
gst_editor_project_save_as (view->project, file_name);
g_free (data);
}
void
on_save_as1_activate (GtkWidget *widget,
GstEditorProjectView *view)
{
GtkWidget *file_selector;
file_select *file_data = g_new0 (file_select, 1);
file_selector = gtk_file_selection_new("Please select a file for saving.");
file_data->selection = file_selector;
file_data->view = view;
gtk_signal_connect (GTK_OBJECT (GTK_FILE_SELECTION(file_selector)->ok_button),
"clicked", GTK_SIGNAL_FUNC (on_save_as_file_selected),
file_data);
/* Ensure that the dialog box is destroyed when the user clicks a button. */
gtk_signal_connect_object (GTK_OBJECT (GTK_FILE_SELECTION(file_selector)->ok_button),
"clicked", GTK_SIGNAL_FUNC (gtk_widget_destroy),
(gpointer) file_selector);
gtk_signal_connect_object (GTK_OBJECT (GTK_FILE_SELECTION(file_selector)->cancel_button),
"clicked", GTK_SIGNAL_FUNC (gtk_widget_destroy),
(gpointer) file_selector);
/* Display that dialog */
gtk_widget_show (file_selector);
}
static void
on_load_file_selected (GtkWidget *button,
file_select *data)
{
GtkWidget *selector = data->selection;
const gchar *file_name;
GstEditorProjectView *view = data->view;
file_name = gtk_file_selection_get_filename (GTK_FILE_SELECTION(selector));
gst_editor_project_load (view->project, file_name);
g_free (data);
}
void
on_open1_activate (GtkWidget *widget,
GstEditorProjectView *view)
{
GtkWidget *file_selector;
file_select *file_data = g_new0 (file_select, 1);
file_selector = gtk_file_selection_new("Please select a file to load.");
file_data->selection = file_selector;
file_data->view = view;
gtk_signal_connect (GTK_OBJECT (GTK_FILE_SELECTION(file_selector)->ok_button),
"clicked", GTK_SIGNAL_FUNC (on_load_file_selected),
file_data);
/* Ensure that the dialog box is destroyed when the user clicks a button. */
gtk_signal_connect_object (GTK_OBJECT (GTK_FILE_SELECTION(file_selector)->ok_button),
"clicked", GTK_SIGNAL_FUNC (gtk_widget_destroy),
(gpointer) file_selector);
gtk_signal_connect_object (GTK_OBJECT (GTK_FILE_SELECTION(file_selector)->cancel_button),
"clicked", GTK_SIGNAL_FUNC (gtk_widget_destroy),
(gpointer) file_selector);
/* Display that dialog */
gtk_widget_show (file_selector);
}
GstEditorProjectView*
gst_editor_project_view_new (GstEditorProject *project)
{
GstEditorProjectView *view;
GtkWidget *main_window;
connect_struct data;
GModule *symbols;
GstEditorPalette *palette;
GList *elements;
struct stat statbuf;
view = GST_EDITOR_PROJECT_VIEW(gtk_type_new(GST_TYPE_EDITOR_PROJECT_VIEW));
view->project = project;
symbols = g_module_open(NULL, 0);
data.view = view;
data.symbols = symbols;
if (stat(DATADIR"editor.glade", &statbuf) == 0) {
g_print ("loading from %s\n", DATADIR"editor.glade");
view->xml = glade_xml_new(DATADIR"editor.glade", "main_project_window");
}
else {
g_print ("loading from %s\n", "editor.glade");
view->xml = glade_xml_new ("editor.glade", "main_project_window");
}
g_assert (view->xml != NULL);
glade_xml_signal_autoconnect_full (view->xml, gst_editor_project_connect_func, &data);
main_window = glade_xml_get_widget(view->xml, "main_project_window");
gtk_widget_show(main_window);
palette = gst_editor_palette_new();
gtk_signal_connect_object(GTK_OBJECT(palette), "element_selected", gst_editor_project_element_selected, GTK_OBJECT(view));
view->list = glade_xml_get_widget(view->xml, "clist1");
gtk_clist_set_row_height(GTK_CLIST(view->list), 21);
gst_editor_property_get();
elements = project->toplevelelements;
while (elements) {
GstElement *element = (GstElement *)elements->data;
view_on_element_added (view, element);
elements = g_list_next (elements);
}
gtk_signal_connect_object(GTK_OBJECT(project), "element_added", view_on_element_added, GTK_OBJECT(view));
return view;
}
static void
gst_editor_project_view_set_arg (GtkObject *object,GtkArg *arg,guint id)
{
GstEditorProjectView *project_view;
/* get the major types of this object */
project_view = GST_EDITOR_PROJECT_VIEW(object);
switch (id) {
default:
g_warning("gsteditorproject_view: unknown arg!");
break;
}
}
static void
gst_editor_project_view_get_arg (GtkObject *object,GtkArg *arg,guint id)
{
GstEditorProjectView *project_view;
/* get the major types of this object */
project_view = GST_EDITOR_PROJECT_VIEW(object);
switch (id) {
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}