gstreamer/editor/gsteditorpadtemplate.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 "gsteditor.h"
/* class functions */
static void gst_editor_padtemplate_class_init(GstEditorPadTemplateClass *klass);
static void gst_editor_padtemplate_init(GstEditorPadTemplate *padtemplate);
static void gst_editor_padtemplate_set_arg(GtkObject *object,GtkArg *arg,guint id);
static void gst_editor_padtemplate_get_arg(GtkObject *object,GtkArg *arg,guint id);
static void gst_editor_padtemplate_realize(GstEditorPadTemplate *padtemplate);
/* class implementation functions */
//static void gst_editor_pad_update(GnomeCanvasItem *item,double *affine,
// ArtSVP *clip_path,int flags);
//static gint gst_editor_pad_event(GnomeCanvasItem *item,GdkEvent *event);
/* events fired by items within self */
static gint gst_editor_padtemplate_padbox_event(GnomeCanvasItem *item,
GdkEvent *event,
GstEditorPadTemplate *padtemplate);
/* utility functions */
static void gst_editor_padtemplate_resize(GstEditorPadTemplate *padtemplate);
enum {
ARG_0,
ARG_X,
ARG_Y,
ARG_WIDTH,
ARG_HEIGHT,
ARG_PADTEMPLATE,
};
enum {
LAST_SIGNAL
};
static GtkObjectClass *parent_class;
//static guint gst_editor_padtemplate_signals[LAST_SIGNAL] = { 0 };
GtkType
gst_editor_padtemplate_get_type (void)
{
static GtkType padtemplate_type = 0;
if (!padtemplate_type) {
static const GtkTypeInfo padtemplate_info = {
"GstEditorPadTemplate",
sizeof(GstEditorPadTemplate),
sizeof(GstEditorPadTemplateClass),
(GtkClassInitFunc)gst_editor_padtemplate_class_init,
(GtkObjectInitFunc)gst_editor_padtemplate_init,
NULL,
NULL,
(GtkClassInitFunc)NULL,
};
padtemplate_type = gtk_type_unique(gtk_object_get_type(),&padtemplate_info);
}
return padtemplate_type;
}
static void
gst_editor_padtemplate_class_init (GstEditorPadTemplateClass *klass)
{
GtkObjectClass *object_class;
object_class = (GtkObjectClass*)klass;
parent_class = gtk_type_class(gtk_object_get_type());
gtk_object_add_arg_type("GstEditorPadTemplate::x",GTK_TYPE_DOUBLE,
GTK_ARG_READWRITE,ARG_X);
gtk_object_add_arg_type("GstEditorPadTemplate::y",GTK_TYPE_DOUBLE,
GTK_ARG_READWRITE,ARG_Y);
gtk_object_add_arg_type("GstEditorPadTemplate::width",GTK_TYPE_DOUBLE,
GTK_ARG_READWRITE,ARG_WIDTH);
gtk_object_add_arg_type("GstEditorPadTemplate::height",GTK_TYPE_DOUBLE,
GTK_ARG_READWRITE,ARG_HEIGHT);
gtk_object_add_arg_type("GstEditorPadTemplate::padtemplate",GTK_TYPE_POINTER,
GTK_ARG_READWRITE,ARG_PADTEMPLATE);
klass->realize = gst_editor_padtemplate_realize;
object_class->set_arg = gst_editor_padtemplate_set_arg;
object_class->get_arg = gst_editor_padtemplate_get_arg;
}
static void
gst_editor_padtemplate_init(GstEditorPadTemplate *padtemplate)
{
}
GstEditorPadTemplate*
gst_editor_padtemplate_new (GstEditorElement *parent,
GstPadTemplate *padtemplate,
const gchar *first_arg_name, ...)
{
GstEditorPadTemplate *editorpadtemplate;
va_list args;
g_return_val_if_fail(parent != NULL, NULL);
g_return_val_if_fail(GST_IS_EDITOR_ELEMENT(parent), NULL);
g_return_val_if_fail(padtemplate != NULL, NULL);
editorpadtemplate = GST_EDITOR_PADTEMPLATE(gtk_type_new(GST_TYPE_EDITOR_PADTEMPLATE));
editorpadtemplate->padtemplate = padtemplate;
//GST_EDITOR_SET_OBJECT(padtemplate, editorpadtemplate);
va_start(args,first_arg_name);
gst_editor_padtemplate_construct(editorpadtemplate,parent,first_arg_name,args);
va_end(args);
return editorpadtemplate;
}
void
gst_editor_padtemplate_construct (GstEditorPadTemplate *padtemplate,
GstEditorElement *parent,
const gchar *first_arg_name, va_list args)
{
GtkObject *obj = GTK_OBJECT(padtemplate);
GSList *arg_list = NULL, *info_list = NULL;
gchar *error;
GstEditorPadTemplateClass *padtemplateclass;
// g_print("in gst_editor_padtemplate_construct()\n");
error = gtk_object_args_collect(GTK_OBJECT_TYPE(obj),&arg_list,
&info_list,first_arg_name,args);
if (error) {
g_warning("gst_editor_padtemplate_construct(): %s",error);
g_free(error);
} else {
GSList *arg,*info;
// g_print("setting all the arguments on the padtemplate\n");
for (arg=arg_list,info=info_list;arg;arg=arg->next,info=info->next)
gtk_object_arg_set(obj,arg->data,info->data);
gtk_args_collect_cleanup(arg_list,info_list);
}
padtemplate->parent = parent;
padtemplateclass = GST_EDITOR_PADTEMPLATE_CLASS(GTK_OBJECT(padtemplate)->klass);
if (padtemplateclass)
(padtemplateclass->realize)(padtemplate);
}
void
gst_editor_padtemplate_add_pad (GstEditorPadTemplate *padtemplate,
GstPad *pad)
{
GstEditorPad *editorpad;
g_print ("gsteditorpadtemplate: add pad\n");
editorpad = gst_editor_pad_new (padtemplate->parent, pad, NULL);
padtemplate->pads = g_list_prepend (padtemplate->pads, editorpad);
}
static void
gst_editor_padtemplate_set_arg (GtkObject *object,GtkArg *arg,guint id)
{
GstEditorPadTemplate *padtemplate;
/* get the major types of this object */
padtemplate = GST_EDITOR_PADTEMPLATE(object);
switch (id) {
case ARG_X:
padtemplate->x = GTK_VALUE_DOUBLE(*arg);
break;
case ARG_Y:
padtemplate->y = GTK_VALUE_DOUBLE(*arg);
break;
case ARG_WIDTH:
padtemplate->width = GTK_VALUE_DOUBLE(*arg);
padtemplate->resize = TRUE;
break;
case ARG_HEIGHT:
padtemplate->height = GTK_VALUE_DOUBLE(*arg);
padtemplate->resize = TRUE;
break;
case ARG_PADTEMPLATE:
/* FIXME: this is very brute force */
padtemplate->padtemplate = GTK_VALUE_POINTER(*arg);
break;
default:
g_warning("gsteditorpadtemplate: unknown arg!");
break;
}
}
static void
gst_editor_padtemplate_get_arg (GtkObject *object,GtkArg *arg,guint id)
{
GstEditorPadTemplate *padtemplate;
/* get the major types of this object */
padtemplate = GST_EDITOR_PADTEMPLATE(object);
switch (id) {
case ARG_X:
GTK_VALUE_INT(*arg) = padtemplate->x;
break;
case ARG_Y:
GTK_VALUE_INT(*arg) = padtemplate->y;
break;
case ARG_WIDTH:
GTK_VALUE_INT(*arg) = padtemplate->width;
break;
case ARG_HEIGHT:
GTK_VALUE_INT(*arg) = padtemplate->height;
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
static void
gst_editor_padtemplate_realize (GstEditorPadTemplate *padtemplate)
{
g_print("realizing editor padtemplate %p\n",padtemplate);
/* we must be attached to an element */
g_return_if_fail(padtemplate->parent != NULL);
/* create the group and bounding box */
padtemplate->group = GNOME_CANVAS_GROUP(gnome_canvas_item_new(padtemplate->parent->group,
gnome_canvas_group_get_type(),"x",padtemplate->x,"y",padtemplate->y,NULL));
g_return_if_fail(padtemplate->group != NULL);
GST_EDITOR_SET_OBJECT(padtemplate->group,padtemplate);
padtemplate->border = gnome_canvas_item_new(padtemplate->group,
gnome_canvas_rect_get_type(),
"width_units",1.0,"fill_color_rgba", 0xFFCCCC00,"outline_color","black",
"x1",0.0,"y1",0.0,"x2",padtemplate->width,"y2",padtemplate->height,NULL);
g_return_if_fail(padtemplate->border != NULL);
GST_EDITOR_SET_OBJECT(padtemplate->border,padtemplate);
/* create the padtemplate box on the correct side */
padtemplate->issrc = (padtemplate->padtemplate->direction == GST_PAD_SRC);
if (padtemplate->issrc)
padtemplate->padtemplatebox = gnome_canvas_item_new(padtemplate->group,
gnome_canvas_rect_get_type(),
"width_units",1.0,"fill_color","white","outline_color","black",
"x1",padtemplate->x-4.0,"y1",2.0,"x2",padtemplate->x,"y2",padtemplate->height-2.0,NULL);
else
padtemplate->padtemplatebox = gnome_canvas_item_new(padtemplate->group,
gnome_canvas_rect_get_type(),
"width_units",1.0,"fill_color","white","outline_color","black",
"x1",0.0,"y1",2.0,"x2",4.0,"y2",padtemplate->height-2.0,NULL);
g_return_if_fail(padtemplate->padtemplatebox != NULL);
GST_EDITOR_SET_OBJECT(padtemplate->padtemplatebox,padtemplate);
gtk_signal_connect(GTK_OBJECT(padtemplate->group),"event",
GTK_SIGNAL_FUNC(gst_editor_padtemplate_padbox_event),padtemplate);
padtemplate->title = gnome_canvas_item_new(padtemplate->group,
gnome_canvas_text_get_type(),
"text",padtemplate->padtemplate->name_template,
"x",0.0,"y",0.0,"anchor",GTK_ANCHOR_NORTH_WEST,
"font_gdk",gtk_widget_get_default_style()->font,
NULL);
g_return_if_fail(padtemplate->title != NULL);
GST_EDITOR_SET_OBJECT(padtemplate->title,padtemplate);
padtemplate->realized = TRUE;
padtemplate->resize = TRUE;
gst_editor_padtemplate_repack(padtemplate);
}
static void
gst_editor_padtemplate_resize (GstEditorPadTemplate *padtemplate)
{
gdouble minwidth,minheight;
// g_print("resizing padtemplate\n");
minwidth = 0;minheight = 0;
/* get the text size and add it into minsize */
minwidth = gst_util_get_double_arg(GTK_OBJECT(padtemplate->title),
"text_width") + 2.0;
minheight = gst_util_get_double_arg(GTK_OBJECT(padtemplate->title),
"text_height");
/* calculate the size of the padtemplatebox */
padtemplate->boxheight = minheight - 4.0;
padtemplate->boxwidth = padtemplate->boxheight / 2.0;
minwidth += padtemplate->boxwidth;
/* force the thing to grow if necessary */
padtemplate->width = MAX(padtemplate->width,minwidth);
padtemplate->height = MAX(padtemplate->height,minheight);
/* update the connection if there is one */
// g_print("connection is %p\n",padtemplate->connection);
if (padtemplate->connection != NULL)
gst_editor_connection_resize(padtemplate->connection);
}
void
gst_editor_padtemplate_repack (GstEditorPadTemplate *padtemplate)
{
gdouble x1,y1,x2,y2;
GList *pads;
if (!padtemplate->realized) return;
gst_editor_padtemplate_resize(padtemplate);
x1 = 0;y1 = 0;
x2 = x1 + padtemplate->width;y2 = y1 + padtemplate->height;
// g_print("repacking padtemplate at %.2fx%.2f %.2fx%.2f - %.2fx%.2f\n",padtemplate->x, padtemplate->y,x1,y1,x2,y2);
/* move the group */
gtk_object_set(GTK_OBJECT(padtemplate->group),"x",padtemplate->x,"y",padtemplate->y,NULL);
/* start by resizing the bordering box */
gtk_object_set(GTK_OBJECT(padtemplate->border),
"x1",x1,"y1",y1,"x2",x2,"y2",y2,NULL);
/* if we're a left-jusified sink */
if (padtemplate->issrc) {
/* and move the padtemplate box */
gtk_object_set(GTK_OBJECT(padtemplate->padtemplatebox),
"x1",x2-padtemplate->boxwidth,"y1",y1+2.0,
"x2",x2,"y2",y2-2.0,NULL);
/* then move the text to the right place */
gtk_object_set(GTK_OBJECT(padtemplate->title),
"x",x2-padtemplate->boxwidth-1.0,"y",y1,
"anchor",GTK_ANCHOR_NORTH_EAST,
NULL);
} else {
/* and move the padtemplate box */
gtk_object_set(GTK_OBJECT(padtemplate->padtemplatebox),
"x1",x1,"y1",y1+2.0,
"x2",x1+padtemplate->boxwidth,"y2",y2-2.0,NULL);
/* then move the text to the right place */
gtk_object_set(GTK_OBJECT(padtemplate->title),
"x",x1+padtemplate->boxwidth+1.0,"y",y1,
"anchor",GTK_ANCHOR_NORTH_WEST,
NULL);
}
pads = padtemplate->pads;
while (pads) {
GstEditorPad *pad = GST_EDITOR_PAD(pads->data);
if (!strcmp (gst_pad_get_name(pad->pad), padtemplate->padtemplate->name_template)) {
gtk_object_set(GTK_OBJECT(pad),"x",padtemplate->x,"y",padtemplate->y,NULL);
}
else {
gtk_object_set(GTK_OBJECT(pad),"x",padtemplate->x,"y",padtemplate->y+y2,NULL);
}
gst_editor_pad_repack (pad);
pads = g_list_next (pads);
}
if (padtemplate->connection != NULL) {
padtemplate->connection->resize = TRUE;
gst_editor_connection_resize(padtemplate->connection);
}
padtemplate->resize = FALSE;
}
/*
static gint gst_editor_padtemplate_event(GnomeCanvasItem *item,GdkEvent *event) {
GstEditorPadTemplate *padtemplate = GST_EDITOR_PAD(item);
gdouble item_x,item_y;
GdkCursor *fleur;
gdouble tx,ty;
item_x = event->button.x;
item_y = event->button.y;
gnome_canvas_item_w2i(item->parent,&item_x,&item_y);
switch(event->type) {
case GDK_ENTER_NOTIFY:
// g_print("entered padtemplate\n");
break;
case GDK_LEAVE_NOTIFY:
// g_print("left padtemplate\n");
break;
default:
break;
}
return FALSE;
}
*/
/* FIXME FIXME FIXME */
static gint
gst_editor_padtemplate_padbox_event(GnomeCanvasItem *item,
GdkEvent *event,
GstEditorPadTemplate *padtemplate)
{
GstEditorElement *element;
GstEditorBin *bin;
// g_print("padtemplatebox has event %d\n",event->type);
g_return_val_if_fail(GST_IS_EDITOR_PADTEMPLATE(padtemplate), FALSE);
element = padtemplate->parent;
bin = element->parent;
switch(event->type) {
case GDK_ENTER_NOTIFY:
gtk_object_set(GTK_OBJECT(padtemplate->border),
"fill_color_rgba", 0xDDBBBB00, NULL);
// g_print("entered padtemplate '%s'\n",
// gst_padtemplate_get_name(padtemplate->padtemplate));
break;
case GDK_LEAVE_NOTIFY:
gtk_object_set(GTK_OBJECT(padtemplate->border),
"fill_color_rgba", 0xFFCCCC00, NULL);
// g_print("left padtemplate '%s'\n",
// gst_padtemplate_get_name(padtemplate->padtemplate));
break;
case GDK_BUTTON_PRESS:
// g_print("have button press in padtemplate '%s'\n",
// gst_padtemplate_get_name(padtemplate->padtemplate));
//gst_editor_bin_start_banding(bin,padtemplate);
return TRUE;
break;
case GDK_MOTION_NOTIFY:
// g_print("have motion in padtemplate\n");
break;
default:
break;
}
return FALSE;
}