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92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
#ifndef __GDK_IMAGE_H__
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#define __GDK_IMAGE_H__
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#include <gdk/gdktypes.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/* Types of images.
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* Normal: Normal X image type. These are slow as they involve passing
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* the entire image through the X connection each time a draw
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* request is required. On Win32, a bitmap.
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* Shared: Shared memory X image type. These are fast as the X server
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* and the program actually use the same piece of memory. They
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* should be used with care though as there is the possibility
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* for both the X server and the program to be reading/writing
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* the image simultaneously and producing undesired results.
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* On Win32, also a bitmap.
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*/
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typedef enum
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{
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GDK_IMAGE_NORMAL,
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GDK_IMAGE_SHARED,
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GDK_IMAGE_FASTEST
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} GdkImageType;
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typedef struct _GdkImageClass GdkImageClass;
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#define GDK_TYPE_IMAGE (gdk_image_get_type ())
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#define GDK_IMAGE(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_IMAGE, GdkImage))
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#define GDK_IMAGE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_IMAGE, GdkImageClass))
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#define GDK_IS_IMAGE(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_IMAGE))
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#define GDK_IS_IMAGE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_IMAGE))
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#define GDK_IMAGE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_IMAGE, GdkImageClass))
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struct _GdkImage
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{
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GObject parent_instance;
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GdkImageType type;
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GdkVisual *visual; /* visual used to create the image */
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GdkByteOrder byte_order;
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gint width;
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gint height;
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guint16 depth;
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guint16 bpp; /* bytes per pixel */
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guint16 bpl; /* bytes per line */
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gpointer mem;
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gpointer windowing_data;
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};
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struct _GdkImageClass
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{
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GObjectClass parent_class;
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};
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GType gdk_image_get_type (void) G_GNUC_CONST;
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GdkImage* gdk_image_new_bitmap (GdkVisual *visual,
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gpointer data,
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gint width,
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gint height);
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GdkImage* gdk_image_new (GdkImageType type,
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GdkVisual *visual,
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gint width,
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gint height);
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GdkImage* gdk_image_get (GdkDrawable *drawable,
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gint x,
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gint y,
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gint width,
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gint height);
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GdkImage * gdk_image_ref (GdkImage *image);
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void gdk_image_unref (GdkImage *image);
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void gdk_image_put_pixel (GdkImage *image,
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gint x,
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gint y,
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guint32 pixel);
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guint32 gdk_image_get_pixel (GdkImage *image,
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gint x,
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gint y);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __GDK_IMAGE_H__ */
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