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| GtkWidget * | gimp_preview_area_new () |
| void | gimp_preview_area_draw () |
| void | gimp_preview_area_fill () |
| void | gimp_preview_area_blend () |
| void | gimp_preview_area_mask () |
| void | gimp_preview_area_set_offsets () |
| void | gimp_preview_area_set_colormap () |
| void | gimp_preview_area_set_max_size () |
| void | gimp_preview_area_menu_popup () |
| void | gimp_preview_area_set_color_config () |
GObject ╰── GInitiallyUnowned ╰── GtkObject ╰── GtkWidget ╰── GtkDrawingArea ╰── GimpPreviewArea
GtkWidget *
gimp_preview_area_new (void);
Creates a new GimpPreviewArea widget.
void gimp_preview_area_draw (GimpPreviewArea *area,gint x,gint y,gint width,gint height,GimpImageType type,const guchar *buf,gint rowstride);
Draws buf
on area
and queues a redraw on the given rectangle.
Since GIMP 2.2
area |
a GimpPreviewArea widget. |
|
x |
x offset in preview |
|
y |
y offset in preview |
|
width |
buffer width |
|
height |
buffer height |
|
type |
the GimpImageType of |
|
buf |
a guchar buffer that contains the preview pixel data. |
|
rowstride |
rowstride of |
void gimp_preview_area_fill (GimpPreviewArea *area,gint x,gint y,gint width,gint height,guchar red,guchar green,guchar blue);
Fills the given rectangle of area
in the given color and queues a
redraw.
Since GIMP 2.2
area |
a GimpPreviewArea widget. |
|
x |
x offset in preview |
|
y |
y offset in preview |
|
width |
width of the rectangle to fill |
|
height |
height of the rectangle to fill |
|
red |
red component of the fill color (0-255) |
|
green |
green component of the fill color (0-255) |
|
blue |
red component of the fill color (0-255) |
void gimp_preview_area_blend (GimpPreviewArea *area,gint x,gint y,gint width,gint height,GimpImageType type,const guchar *buf1,gint rowstride1,const guchar *buf2,gint rowstride2,guchar opacity);
Composites buf1
on buf2
with the given opacity
, draws the result
to area
and queues a redraw on the given rectangle.
Since GIMP 2.2
area |
a GimpPreviewArea widget. |
|
x |
x offset in preview |
|
y |
y offset in preview |
|
width |
buffer width |
|
height |
buffer height |
|
type |
the GimpImageType of |
|
buf1 |
a guchar buffer that contains the pixel data for the lower layer |
|
rowstride1 |
rowstride of |
|
buf2 |
a guchar buffer that contains the pixel data for the upper layer |
|
rowstride2 |
rowstride of |
|
opacity |
The opacity of the first layer. |
void gimp_preview_area_mask (GimpPreviewArea *area,gint x,gint y,gint width,gint height,GimpImageType type,const guchar *buf1,gint rowstride1,const guchar *buf2,gint rowstride2,const guchar *mask,gint rowstride_mask);
Composites buf1
on buf2
with the given mask
, draws the result on
area
and queues a redraw on the given rectangle.
Since GIMP 2.2
area |
a GimpPreviewArea widget. |
|
x |
x offset in preview |
|
y |
y offset in preview |
|
width |
buffer width |
|
height |
buffer height |
|
type |
the GimpImageType of |
|
buf1 |
a guchar buffer that contains the pixel data for the lower layer |
|
rowstride1 |
rowstride of |
|
buf2 |
a guchar buffer that contains the pixel data for the upper layer |
|
rowstride2 |
rowstride of |
|
mask |
a guchar buffer representing the mask of the second layer. |
|
rowstride_mask |
rowstride for the mask. |
void gimp_preview_area_set_offsets (GimpPreviewArea *area,gint x,gint y);
Sets the offsets of the previewed area. This information is used when drawing the checkerboard and to determine the dither offsets.
Since: 2.2
void gimp_preview_area_set_colormap (GimpPreviewArea *area,const guchar *colormap,gint num_colors);
Sets the colormap for the GimpPreviewArea widget. You need to
call this function before you use gimp_preview_area_draw() with
an image type of GIMP_INDEXED_IMAGE or GIMP_INDEXEDA_IMAGE.
Since GIMP 2.2
area |
||
colormap |
a guchar buffer that contains the colormap |
|
num_colors |
the number of colors in the colormap |
void gimp_preview_area_set_max_size (GimpPreviewArea *area,gint width,gint height);
Usually a GimpPreviewArea fills the size that it is allocated. This function allows you to limit the preview area to a maximum size. If a larger size is allocated for the widget, the preview will draw itself centered into the allocated area.
area |
a GimpPreviewArea widget |
|
width |
the maximum width in pixels or -1 to unset the limit |
|
height |
the maximum height in pixels or -1 to unset the limit |
Since: 2.2
void gimp_preview_area_menu_popup (GimpPreviewArea *area,GdkEventButton *event);
Creates a popup menu that allows one to configure the size and type of
the checkerboard pattern that the area
uses to visualize transparency.
Since: 2.2
void gimp_preview_area_set_color_config (GimpPreviewArea *area,GimpColorConfig *config);
Sets the color management configuration to use with this preview area.
Since: 2.10
“check-size” property“check-size” GimpCheckSize
The size of the checkerboard pattern indicating transparency.
Owner: GimpPreviewArea
Flags: Read / Write
Default value: GIMP_CHECK_SIZE_MEDIUM_CHECKS
“check-type” property“check-type” GimpCheckType
The colors of the checkerboard pattern indicating transparency.
Owner: GimpPreviewArea
Flags: Read / Write
Default value: GIMP_CHECK_TYPE_GRAY_CHECKS