gstreamer/editor/gsteditor.h

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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.
*/
#ifndef __GST_EDITOR_H__
#define __GST_EDITOR_H__
#include <gnome.h>
#include <gst/gst.h>
typedef struct _GstEditor GstEditor;
typedef struct _GstEditorClass GstEditorClass;
typedef struct _GstEditorElement GstEditorElement;
typedef struct _GstEditorElementClass GstEditorElementClass;
typedef struct _GstEditorBin GstEditorBin;
typedef struct _GstEditorBinClass GstEditorBinClass;
typedef struct _GstEditorCanvas GstEditorCanvas;
typedef struct _GstEditorCanvasClass GstEditorCanvasClass;
typedef struct _GstEditorPad GstEditorPad;
typedef struct _GstEditorPadClass GstEditorPadClass;
typedef struct _GstEditorConnection GstEditorConnection;
typedef struct _GstEditorConnectionClass GstEditorConnectionClass;
#define GST_TYPE_EDITOR \
(gst_editor_get_type())
#define GST_EDITOR(obj) \
(GTK_CHECK_CAST((obj),GST_TYPE_EDITOR,GstEditor))
#define GST_EDITOR_CLASS(klass) \
(GTK_CHECK_CLASS_CAST((klass),GST_TYPE_EDITOR,GstEditorClass))
#define GST_IS_EDITOR(obj) \
(GTK_CHECK_TYPE((obj),GST_TYPE_EDITOR))
#define GST_IS_EDITOR_CLASS(obj) \
(GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_EDITOR))
struct _GstEditor {
GtkWindow window;
/* the actual element to be associated with this thing */
GstElement *element;
/* the editor canvas */
GstEditorCanvas *canvas;
/* the canvas and scrollwindow */
GtkWidget *canvaswidget;
GtkWidget *scrollwindow;
};
struct _GstEditorClass {
GtkWindowClass parent_class;
void (*name_changed) (GstEditor *editor);
};
GtkType gst_editor_get_type();
GstEditor *gst_editor_new(GstElement *element);
char *gst_editor_get_name(GstEditor *editor);
#define GST_EDITOR_SET_OBJECT(item,object) \
(gtk_object_set_data(GTK_OBJECT(item),"gsteditorobject",(object)))
#define GST_EDTIOR_GET_OBJECT(item) \
(gtk_object_get_data(GTK_OBJECT(item),"gsteditorobject"))
#define GST_TYPE_EDITOR_ELEMENT \
(gst_editor_element_get_type())
#define GST_EDITOR_ELEMENT(obj) \
(GTK_CHECK_CAST((obj),GST_TYPE_EDITOR_ELEMENT,GstEditorElement))
#define GST_EDITOR_ELEMENT_CLASS(klass) \
(GTK_CHECK_CLASS_CAST((klass),GST_TYPE_EDITOR_ELEMENT,GstEditorElementClass))
#define GST_IS_EDITOR_ELEMENT(obj) \
(GTK_CHECK_TYPE((obj),GST_TYPE_EDITOR_ELEMENT))
#define GST_IS_EDITOR_ELEMENT_CLASS(obj) \
(GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_EDITOR_ELEMENT))
#define GST_EDITOR_ELEMENT_PARENT(obj) (GST_EDITOR_ELEMENT(obj)->parent)
#define GST_EDITOR_ELEMENT_GROUP(obj) (GST_EDITOR_ELEMENT(obj)->group)
#define GST_EDITOR_ELEMENT_CANVAS(obj) (GST_EDITOR_ELEMENT(obj)->canvas)
struct _GstEditorElement {
GstObject object;
/* parent object (NULL if I am the parent) */
GstEditorBin *parent;
/* toplevel canvas (myself if I am the toplevel) */
GstEditorCanvas *canvas;
/* the element we're associated with */
GstElement *element;
/* whether we've been realized or not */
gboolean realized;
/* toplevel group, must be !NULL */
GnomeCanvasGroup *group; // parent group
/* visual stuff */
gdouble x,y; // center
gdouble width,height; // size
GnomeCanvasItem *border,*title,*resizebox; // easy ones
GnomeCanvasItem *statebox[4],*statetext[4]; // GST_STATE_*
gdouble insidewidth,insideheight; // minimum space inside
gdouble minwidth,minheight; // minimum size
gdouble titlewidth,titleheight; // size of title
gdouble statewidth,stateheight; // size of state boxes
gdouble sinkwidth,sinkheight; // size of sink pads
gdouble srcwidth,srcheight; // size of src pads
gint sinks,srcs; // how many pads?
GnomeCanvasGroup *insidegroup; // contents if any
gboolean resize; // does it need resizing?
/* list of pads */
GList *srcpads,*sinkpads;
gboolean padlistchange;
/* interaction state */
gboolean dragging,resizing,moved,hesitating;
gdouble offx,offy,dragx,dragy;
};
struct _GstEditorElementClass {
GnomeCanvasGroupClass parent_class;
void (*name_changed) (GstEditorElement *element);
void (*realize) (GstEditorElement *element);
gint (*event) (GnomeCanvasItem *item,GdkEvent *event,
GstEditorElement *element);
gint (*button_event) (GnomeCanvasItem *item,GdkEvent *event,
GstEditorElement *element);
};
GtkType gst_editor_element_get_type();
GstEditorElement *gst_editor_element_new(GstEditorBin *parent,
GstElement *element,
const gchar *first_arg_name,...);
void gst_editor_element_construct(GstEditorElement *element,
GstEditorBin *parent,
const gchar *first_arg_name,
va_list args);
void gst_editor_element_repack(GstEditorElement *element);
GstEditorPad *gst_editor_element_add_pad(GstEditorElement *element,
GstPad *pad);
void gst_editor_element_set_name(GstEditorElement *element,
const gchar *name);
const gchar *gst_editor_element_get_name(GstEditorElement *element);
#define GST_TYPE_EDITOR_BIN \
(gst_editor_bin_get_type())
#define GST_EDITOR_BIN(obj) \
(GTK_CHECK_CAST((obj),GST_TYPE_EDITOR_BIN,GstEditorBin))
#define GST_EDITOR_BIN_CLASS(klass) \
(GTK_CHECK_CLASS_CAST((klass),GST_TYPE_EDITOR_BIN,GstEditorBin))
#define GST_IS_EDITOR_BIN(obj) \
(GTK_CHECK_TYPE((obj),GST_TYPE_EDITOR_BIN))
#define GST_IS_EDITOR_BIN_CLASS(obj) \
(GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_EDITOR_BIN))
struct _GstEditorBin {
GstEditorElement element;
/* lists of GUI elements and connections */
GList *elements, *connections;
/* connection state */
GstEditorPad *frompad; // where the drawing started from
gboolean fromsrc; // are we connecting *from* a source?
gboolean connecting; // if we're trying to connect right now
GstEditorConnection *connection; // the connection we're operating on
GstEditorPad *ghostpad; // potential ghost pad
gboolean inpadregion; // is cursor in pad region
};
struct _GstEditorBinClass {
GstEditorElementClass parent_class;
};
GtkType gst_editor_bin_get_type();
GstEditorBin *gst_editor_bin_new(GstEditorBin *parent,GstBin *bin,
const gchar *first_arg_name,...);
void gst_editor_bin_connection_drag(GstEditorBin *bin,
gdouble wx,gdouble wy);
void gst_editor_bin_start_banding(GstEditorBin *bin,GstEditorPad *pad);
#define GST_TYPE_EDITOR_CANVAS \
(gst_editor_canvas_get_type())
#define GST_EDITOR_CANVAS(obj) \
(GTK_CHECK_CAST((obj),GST_TYPE_EDITOR_CANVAS,GstEditorCanvas))
#define GST_EDITOR_CANVAS_CLASS(klass) \
(GTK_CHECK_CLASS_CAST((klass),GST_TYPE_EDITOR_CANVAS,GstEditorCanvasClass))
#define GST_IS_EDITOR_CANVAS(obj) \
(GTK_CHECK_TYPE((obj),GST_TYPE_EDITOR_CANVAS))
#define GST_IS_EDITOR_CANVAS_CLASS(obj) \
(GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_EDITOR_CANVAS))
struct _GstEditorCanvas {
GstEditorBin bin;
gboolean inchild;
GnomeCanvas *canvas;
};
struct _GstEditorCanvasClass {
GnomeCanvasClass parent_class;
};
GtkType gst_editor_canvas_get_type();
GstEditorCanvas *gst_editor_canvas_new(GstBin *bin,
const gchar *first_arg_name,...);
GtkWidget *gst_editor_canvas_get_canvas(GstEditorCanvas *canvas);
void gst_editor_bin_add(GstEditorBin *parent,GstEditorElement *element);
#define GST_TYPE_EDITOR_PAD \
(gst_editor_pad_get_type())
#define GST_EDITOR_PAD(obj) \
(GTK_CHECK_CAST((obj),GST_TYPE_EDITOR_PAD,GstEditorPad))
#define GST_EDITOR_PAD_CLASS(klass) \
(GTK_CHECK_CLASS_CAST((klass),GST_TYPE_EDITOR_PAD,GstEditorPadClass))
#define GST_IS_EDITOR_PAD(obj) \
(GTK_CHECK_TYPE((obj),GST_TYPE_EDITOR_PAD))
#define GST_IS_EDITOR_PAD_CLASS(obj) \
(GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_EDITOR_PAD))
struct _GstEditorPad {
GtkObject object;
/* parent element */
GstEditorElement *parent;
/* toplevel canvas */
GstEditorCanvas *canvas;
/* the pad we're associated with */
GstPad *pad;
/* if this is a sink (convenience) */
gboolean issrc;
/* whether we've been realized or not */
gboolean realized;
/* connections */
GstEditorConnection *connection;
GstEditorConnection *ghostconnection;
/* visual stuff */
GnomeCanvasGroup *group;
GnomeCanvasItem *border,*title,*padbox;
gboolean sinkpad; // is this a sink pad?
gdouble x,y; // location
gdouble width,height; // actual size
gdouble boxwidth,boxheight; // size of pad box
gboolean resize; // does it need resizing?
/* interaction state */
gboolean dragging,resizing,moved;
gdouble dragx,dragy;
/* connection */
// GnomeCanvasItem *connection; // can't use
//GstEditorConnection
};
struct _GstEditorPadClass {
GtkObjectClass parent_class;
void (*realize) (GstEditorPad *pad);
};
GtkType gst_editor_pad_get_type();
GstEditorPad *gst_editor_pad_new(GstEditorElement *parent,GstPad *pad,
const gchar *first_arg_name, ...);
void gst_editor_pad_construct(GstEditorPad *element,
GstEditorElement *parent,
const gchar *first_arg_name,va_list args);
void gst_editor_pad_repack(GstEditorPad *pad);
#define GST_TYPE_EDITOR_CONNECTION \
(gst_editor_connection_get_type())
#define GST_EDITOR_CONNECTION(obj) \
(GTK_CHECK_CAST((obj),GST_TYPE_EDITOR_CONNECTION,GstEditorConnection))
#define GST_EDITOR_CONNECTION_CLASS(klass) \
(GTK_CHECK_CLASS_CAST((klass),GST_TYPE_EDITOR_CONNECTION,GstEditorConnectionClass))
#define GST_IS_EDITOR_CONNECTION(obj) \
(GTK_CHECK_TYPE((obj),GST_TYPE_EDITOR_CONNECTION))
#define GST_IS_EDITOR_CONNECTION_CLASS(obj) \
(GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_EDITOR_CONNECTION))
struct _GstEditorConnection {
GtkObject object;
/* our parent */
GstEditorElement *parent;
/* the two pads we're connecting */
GstEditorPad *frompad, *topad;
/* is this starting at a source (convenience) */
gboolean fromsrc;
/* toplevel canvas */
GstEditorCanvas *canvas;
/* whether we've been realized or not */
gboolean realized;
/* are we a ghosted connection? */
gboolean ghost;
/* visual stuff */
GnomeCanvasItem *line;
GnomeCanvasPoints *points;
gdouble x,y; // terminating point
gboolean resize; // does it need resizing?
};
struct _GstEditorConnectionClass {
GtkObjectClass parent_class;
void (*realize) (GstEditorConnection *connection);
};
GtkType gst_editor_connection_get_type();
GstEditorConnection *gst_editor_connection_new(GstEditorBin *parent,
GstEditorPad *frompad);
void gst_editor_connection_resize(GstEditorConnection *connection);
void gst_editor_connection_set_endpoint(GstEditorConnection *connection,
gdouble x,gdouble y);
void gst_editor_connection_set_endpad(GstEditorConnection *connection,
GstEditorPad *pad);
void gst_editor_connection_connect(GstEditorConnection *connection);
#endif /* __GST_EDITOR_H__ */