88 lines
2.9 KiB
C
88 lines
2.9 KiB
C
/* Image item type for GnomeCanvas widget
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*
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* GnomeCanvas is basically a port of the Tk toolkit's most excellent canvas widget. Tk is
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* copyrighted by the Regents of the University of California, Sun Microsystems, and other parties.
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*
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* Copyright (C) 1998 The Free Software Foundation
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*
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* Author: Federico Mena <federico@nuclecu.unam.mx>
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*/
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#ifndef __GNOME_CANVAS_IMAGEFRAME_H__
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#define __GNOME_CANVAS_IMAGEFRAME_H__
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#include <stdint.h>
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#include <libgnomecanvas/libgnomecanvas.h>
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#include <gtk/gtkenums.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <libart_lgpl/art_misc.h>
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#ifdef __cplusplus
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}
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#endif
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#include <libart_lgpl/art_pixbuf.h>
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G_BEGIN_DECLS
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/* Image item for the canvas. Images are positioned by anchoring them to a point.
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* The following arguments are available:
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*
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* name type read/write description
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* ------------------------------------------------------------------------------------------
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* pixbuf ArtPixBuf* W Pointer to an ArtPixBuf (aa-mode)
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* x double RW X coordinate of anchor point
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* y double RW Y coordinate of anchor point
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* width double RW Width to scale image to, in canvas units
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* height double RW Height to scale image to, in canvas units
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* drawwidth double RW Width to scale image to, in canvas units
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* anchor GtkAnchorType RW Anchor side for the image
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*/
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#define GNOME_CANVAS_TYPE_CANVAS_IMAGEFRAME (gnome_canvas_imageframe_get_type ())
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#define GNOME_CANVAS_IMAGEFRAME(obj) (GTK_CHECK_CAST ((obj), GNOME_CANVAS_TYPE_CANVAS_IMAGEFRAME, GnomeCanvasImageFrame))
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#define GNOME_CANVAS_IMAGEFRAME_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GNOME_CANVAS_TYPE_CANVAS_IMAGEFRAME, GnomeCanvasImageFrameClass))
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#define GNOME_CANVAS_IS_CANVAS_IMAGEFRAME(obj) (GTK_CHECK_TYPE ((obj), GNOME_CANVAS_TYPE_CANVAS_IMAGEFRAME))
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#define GNOME_CANVAS_IS_CANVAS_IMAGEFRAME_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GNOME_CANVAS_TYPE_CANVAS_IMAGEFRAME))
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typedef struct _GnomeCanvasImageFrame GnomeCanvasImageFrame;
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typedef struct _GnomeCanvasImageFrameClass GnomeCanvasImageFrameClass;
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struct _GnomeCanvasImageFrame {
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GnomeCanvasItem item;
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double x, y; /* Position at anchor, item relative */
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double width, height; /* Size of image, item relative */
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double drawwidth ; /* the amount of the image we draw width-wise (0-drawwidth)*/
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GtkAnchorType anchor; /* Anchor side for image */
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int cx, cy; /* Top-left canvas coordinates for display */
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int cwidth, cheight; /* Rendered size in pixels */
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uint32_t need_recalc : 1; /* Do we need to rescale the image? */
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ArtPixBuf *pixbuf; /* A pixbuf, for aa rendering */
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double affine[6]; /* The item -> canvas affine */
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};
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struct _GnomeCanvasImageFrameClass {
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GnomeCanvasItemClass parent_class;
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};
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/* Standard Gtk function */
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GtkType gnome_canvas_imageframe_get_type (void);
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G_END_DECLS
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#endif
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