Initial import of gtk2_ardour.

git-svn-id: svn://localhost/trunk/ardour2@24 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 80 insertions, 0 deletions

diff --git a/gtk2_ardour/canvas-imageframe.h b/gtk2_ardour/canvas-imageframe.h
new file mode 100644
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+++ b/gtk2_ardour/canvas-imageframe.h
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+/* Image item type for GtkCanvas widget
+ *
+ * GtkCanvas is basically a port of the Tk toolkit's most excellent canvas widget.  Tk is
+ * copyrighted by the Regents of the University of California, Sun Microsystems, and other parties.
+ *
+ * Copyright (C) 1998 The Free Software Foundation
+ *
+ * Author: Federico Mena <federico@nuclecu.unam.mx>
+ */
+ 
+ 
+#ifndef __GTK_CANVAS_IMAGEFRAME_H__
+#define __GTK_CANVAS_IMAGEFRAME_H__
+
+#include <stdint.h>
+
+#include <gtk-canvas/gtk-canvas-defs.h>
+#include <gtk/gtkpacker.h> /* why the hell is GtkAnchorType here and not in gtkenums.h? */
+#include <libart_lgpl/art_misc.h>
+#include <libart_lgpl/art_pixbuf.h>
+#include "gtk-canvas/gtk-canvas.h"
+
+
+BEGIN_GTK_CANVAS_DECLS
+
+
+/* Image item for the canvas.  Images are positioned by anchoring them to a point.
+ * The following arguments are available:
+ *
+ * name		type			read/write	description
+ * ------------------------------------------------------------------------------------------
+ * pixbuf     ArtPixBuf*      W		Pointer to an ArtPixBuf (aa-mode)
+ * x          double          RW		X coordinate of anchor point
+ * y          double          RW		Y coordinate of anchor point
+ * width      double          RW		Width to scale image to, in canvas units
+ * height     double          RW		Height to scale image to, in canvas units
+ * drawwidth  double          RW		Width to scale image to, in canvas units
+ * anchor     GtkAnchorType   RW		Anchor side for the image
+ */
+
+
+#define GTK_CANVAS_TYPE_CANVAS_IMAGEFRAME            (gtk_canvas_imageframe_get_type ())
+#define GTK_CANVAS_IMAGEFRAME(obj)                   (GTK_CHECK_CAST ((obj), GTK_CANVAS_TYPE_CANVAS_IMAGEFRAME, GtkCanvasImageFrame))
+#define GTK_CANVAS_IMAGEFRAME_CLASS(klass)           (GTK_CHECK_CLASS_CAST ((klass), GTK_CANVAS_TYPE_CANVAS_IMAGEFRAME, GtkCanvasImageFrameClass))
+#define GTK_CANVAS_IS_CANVAS_IMAGEFRAME(obj)         (GTK_CHECK_TYPE ((obj), GTK_CANVAS_TYPE_CANVAS_IMAGEFRAME))
+#define GTK_CANVAS_IS_CANVAS_IMAGEFRAME_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GTK_CANVAS_TYPE_CANVAS_IMAGEFRAME))
+
+
+typedef struct _GtkCanvasImageFrame GtkCanvasImageFrame;
+typedef struct _GtkCanvasImageFrameClass GtkCanvasImageFrameClass;
+
+struct _GtkCanvasImageFrame {
+	GtkCanvasItem item;
+
+	double x, y;			/* Position at anchor, item relative */
+	double width, height;		/* Size of image, item relative */
+	double drawwidth ;		/* the amount of the image we draw width-wise (0-drawwidth)*/
+	GtkAnchorType anchor;		/* Anchor side for image */
+
+	int cx, cy;			/* Top-left canvas coordinates for display */
+	int cwidth, cheight;		/* Rendered size in pixels */
+
+	uint32_t need_recalc : 1;	/* Do we need to rescale the image? */
+
+	ArtPixBuf *pixbuf;		/* A pixbuf, for aa rendering */
+	double affine[6];               /* The item -> canvas affine */
+};
+
+struct _GtkCanvasImageFrameClass {
+	GtkCanvasItemClass parent_class;
+};
+
+
+/* Standard Gtk function */
+GtkType gtk_canvas_imageframe_get_type (void);
+
+
+END_GTK_CANVAS_DECLS
+
+#endif