forked from AuroraMiddleware/gtk
b4e4a0ed9d
2001-05-04 Havoc Pennington <hp@redhat.com> * configure.in: fix some shell typos * gtk/gtkcolorsel.c (gtk_color_selection_destroy): warning fix * gtk/gtkimage.c: handle animations * gtk/gtkcheckbutton.c (gtk_check_button_size_request): request border_width * 2, not just border_width * gtk/gtkscale.c: add "format_value" signal to allow people to override the way values are drawn. (gtk_scale_get_value_size): fix width/height mistake, and compute size from actual displayed text, not from made-up text. * gtk/gtktexttag.c (gtk_text_tag_class_init): fix return type in signal registration * tests/testtext.c: Add "Remove all tags" menu item for testing * gtk/gtktextbuffer.c (gtk_text_buffer_remove_all_tags): implement * demos/gtk-demo/main.c (main): add hack so we can find modules without installing gtk * demos/gtk-demo/textview.c (insert_text): demo font scaling * gtk/gtkcellrenderertext.c: Add "scale" property (font scaling factor) (gtk_cell_renderer_text_set_property): remove some bogus g_object_notify * gtk/gtktexttag.c: add "scale" property which is a font scaling factor * gtk/gtktextlayout.c (add_text_attrs): add font scale attribute to layout * gtk/gtktextiter.c (gtk_text_iter_is_start): rename from gtk_text_iter_is_first 2001-05-04 Havoc Pennington <hp@redhat.com> * pixops/pixops.c (pixops_process): merge fix from stable: Patch from hoshem@mel.comcen.com.au to fix nonzero X offsets. Fixes bug #50371. * gdk-pixbuf/pixops/pixops.c (pixops_composite_nearest): merge from stable: Patch from OKADA Mitsuru <m-okada@fjb.co.jp> to fix confusion of using "src" instead of "p". (pixops_composite_color_nearest): Use a more accurate (and correct, to begin with) compositing method. This cures checks showing through on images with no alpha. * gdk-pixbuf.c (gdk_pixbuf_fill): fix bug that left some trailing bytes unfilled. * gdk-pixbuf-io.h: fix UpdatedNotifyFunc to use signed ints * gdk-pixbuf-loader.h (struct _GdkPixbufLoaderClass): Change area_updated signal to use signed ints. Removed animation-related signals. * io-gif.c, io-gif-animation.h, io-gif-animation.c: Massive rewrite action * gdk-pixbuf-animation.c: Add GdkPixbufAnimationIter to abstract all the pesky details. Remove old frame-based API. Make GdkPixbufAnimation an abstract base class, derived by the loaders.
295 lines
11 KiB
C
295 lines
11 KiB
C
/* GdkPixbuf library - Main header file
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*
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* Copyright (C) 1999 The Free Software Foundation
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*
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* Authors: Mark Crichton <crichton@gimp.org>
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* Miguel de Icaza <miguel@gnu.org>
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* Federico Mena-Quintero <federico@gimp.org>
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* Havoc Pennington <hp@redhat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef GDK_PIXBUF_H
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#define GDK_PIXBUF_H
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#include <glib.h>
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#include <gdk-pixbuf/gdk-pixbuf-features.h>
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#include <glib-object.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Alpha compositing mode */
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typedef enum
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{
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GDK_PIXBUF_ALPHA_BILEVEL,
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GDK_PIXBUF_ALPHA_FULL
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} GdkPixbufAlphaMode;
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/* Color spaces; right now only RGB is supported.
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* Note that these values are encoded in inline pixbufs
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* as ints, so don't reorder them
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*/
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typedef enum {
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GDK_COLORSPACE_RGB
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} GdkColorspace;
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/* All of these are opaque structures */
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typedef struct _GdkPixbuf GdkPixbuf;
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typedef struct _GdkPixbufAnimation GdkPixbufAnimation;
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typedef struct _GdkPixbufAnimationIter GdkPixbufAnimationIter;
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typedef struct _GdkPixbufFrame GdkPixbufFrame;
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#define GDK_TYPE_PIXBUF (gdk_pixbuf_get_type ())
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#define GDK_PIXBUF(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_PIXBUF, GdkPixbuf))
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#define GDK_IS_PIXBUF(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_PIXBUF))
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#define GDK_TYPE_PIXBUF_ANIMATION (gdk_pixbuf_animation_get_type ())
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#define GDK_PIXBUF_ANIMATION(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_PIXBUF_ANIMATION, GdkPixbufAnimation))
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#define GDK_IS_PIXBUF_ANIMATION(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_PIXBUF_ANIMATION))
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#define GDK_TYPE_PIXBUF_ANIMATION_ITER (gdk_pixbuf_animation_iter_get_type ())
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#define GDK_PIXBUF_ANIMATION_ITER(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_PIXBUF_ANIMATION_ITER, GdkPixbufAnimationIter))
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#define GDK_IS_PIXBUF_ANIMATION_ITER(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_PIXBUF_ANIMATION_ITER))
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/* Handler that must free the pixel array */
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typedef void (* GdkPixbufDestroyNotify) (guchar *pixels, gpointer data);
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#define GDK_PIXBUF_ERROR gdk_pixbuf_error_quark ()
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typedef enum {
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/* image data hosed */
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GDK_PIXBUF_ERROR_CORRUPT_IMAGE,
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/* no mem to load image */
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GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY,
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/* bad option value passed to save routine */
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GDK_PIXBUF_ERROR_BAD_OPTION_VALUE,
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/* unsupported image type (sort of an ENOSYS) */
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GDK_PIXBUF_ERROR_UNKNOWN_TYPE,
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/* unsupported operation (load, save) for image type */
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GDK_PIXBUF_ERROR_UNSUPPORTED_OPERATION,
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GDK_PIXBUF_ERROR_FAILED
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} GdkPixbufError;
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GQuark gdk_pixbuf_error_quark () G_GNUC_CONST;
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GType gdk_pixbuf_get_type (void) G_GNUC_CONST;
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/* Reference counting */
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GdkPixbuf *gdk_pixbuf_ref (GdkPixbuf *pixbuf);
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void gdk_pixbuf_unref (GdkPixbuf *pixbuf);
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/* GdkPixbuf accessors */
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GdkColorspace gdk_pixbuf_get_colorspace (const GdkPixbuf *pixbuf);
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int gdk_pixbuf_get_n_channels (const GdkPixbuf *pixbuf);
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gboolean gdk_pixbuf_get_has_alpha (const GdkPixbuf *pixbuf);
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int gdk_pixbuf_get_bits_per_sample (const GdkPixbuf *pixbuf);
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guchar *gdk_pixbuf_get_pixels (const GdkPixbuf *pixbuf);
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int gdk_pixbuf_get_width (const GdkPixbuf *pixbuf);
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int gdk_pixbuf_get_height (const GdkPixbuf *pixbuf);
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int gdk_pixbuf_get_rowstride (const GdkPixbuf *pixbuf);
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/* Create a blank pixbuf with an optimal rowstride and a new buffer */
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GdkPixbuf *gdk_pixbuf_new (GdkColorspace colorspace, gboolean has_alpha, int bits_per_sample,
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int width, int height);
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/* Copy a pixbuf */
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GdkPixbuf *gdk_pixbuf_copy (const GdkPixbuf *pixbuf);
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/* Create a pixbuf which points to the pixels of another pixbuf */
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GdkPixbuf *gdk_pixbuf_new_subpixbuf (GdkPixbuf *src_pixbuf,
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int src_x,
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int src_y,
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int width,
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int height);
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/* Simple loading */
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GdkPixbuf *gdk_pixbuf_new_from_file (const char *filename,
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GError **error);
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GdkPixbuf *gdk_pixbuf_new_from_data (const guchar *data,
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GdkColorspace colorspace,
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gboolean has_alpha,
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int bits_per_sample,
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int width, int height,
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int rowstride,
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GdkPixbufDestroyNotify destroy_fn,
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gpointer destroy_fn_data);
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GdkPixbuf *gdk_pixbuf_new_from_xpm_data (const char **data);
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/* Read an inline pixbuf */
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GdkPixbuf *gdk_pixbuf_new_from_inline (const guchar *inline_pixbuf,
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gboolean copy_pixels,
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int length,
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GError **error);
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/* Mutations */
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void gdk_pixbuf_fill (GdkPixbuf *pixbuf,
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guint32 pixel);
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/* Saving */
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gboolean gdk_pixbuf_save (GdkPixbuf *pixbuf,
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const char *filename,
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const char *type,
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GError **error,
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...);
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gboolean gdk_pixbuf_savev (GdkPixbuf *pixbuf,
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const char *filename,
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const char *type,
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char **option_keys,
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char **option_values,
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GError **error);
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/* Adding an alpha channel */
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GdkPixbuf *gdk_pixbuf_add_alpha (const GdkPixbuf *pixbuf, gboolean substitute_color,
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guchar r, guchar g, guchar b);
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/* Copy an area of a pixbuf onto another one */
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void gdk_pixbuf_copy_area (const GdkPixbuf *src_pixbuf,
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int src_x, int src_y,
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int width, int height,
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GdkPixbuf *dest_pixbuf,
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int dest_x, int dest_y);
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/* Brighten/darken and optionally make it pixelated-looking */
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void gdk_pixbuf_saturate_and_pixelate (const GdkPixbuf *src,
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GdkPixbuf *dest,
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gfloat saturation,
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gboolean pixelate);
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/* Rendering to a drawable */
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/* Scaling */
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/* Interpolation modes */
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typedef enum {
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GDK_INTERP_NEAREST,
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GDK_INTERP_TILES,
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GDK_INTERP_BILINEAR,
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GDK_INTERP_HYPER
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} GdkInterpType;
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void gdk_pixbuf_scale (const GdkPixbuf *src,
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GdkPixbuf *dest,
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int dest_x,
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int dest_y,
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int dest_width,
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int dest_height,
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double offset_x,
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double offset_y,
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double scale_x,
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double scale_y,
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GdkInterpType interp_type);
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void gdk_pixbuf_composite (const GdkPixbuf *src,
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GdkPixbuf *dest,
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int dest_x,
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int dest_y,
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int dest_width,
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int dest_height,
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double offset_x,
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double offset_y,
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double scale_x,
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double scale_y,
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GdkInterpType interp_type,
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int overall_alpha);
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void gdk_pixbuf_composite_color (const GdkPixbuf *src,
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GdkPixbuf *dest,
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int dest_x,
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int dest_y,
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int dest_width,
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int dest_height,
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double offset_x,
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double offset_y,
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double scale_x,
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double scale_y,
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GdkInterpType interp_type,
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int overall_alpha,
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int check_x,
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int check_y,
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int check_size,
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guint32 color1,
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guint32 color2);
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GdkPixbuf *gdk_pixbuf_scale_simple (const GdkPixbuf *src,
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int dest_width,
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int dest_height,
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GdkInterpType interp_type);
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GdkPixbuf *gdk_pixbuf_composite_color_simple (const GdkPixbuf *src,
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int dest_width,
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int dest_height,
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GdkInterpType interp_type,
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int overall_alpha,
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int check_size,
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guint32 color1,
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guint32 color2);
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/* Animation support */
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GType gdk_pixbuf_animation_get_type (void) G_GNUC_CONST;
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GdkPixbufAnimation *gdk_pixbuf_animation_new_from_file (const char *filename,
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GError **error);
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GdkPixbufAnimation *gdk_pixbuf_animation_ref (GdkPixbufAnimation *animation);
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void gdk_pixbuf_animation_unref (GdkPixbufAnimation *animation);
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int gdk_pixbuf_animation_get_width (GdkPixbufAnimation *animation);
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int gdk_pixbuf_animation_get_height (GdkPixbufAnimation *animation);
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gboolean gdk_pixbuf_animation_is_static_image (GdkPixbufAnimation *animation);
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GdkPixbuf *gdk_pixbuf_animation_get_static_image (GdkPixbufAnimation *animation);
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GdkPixbufAnimationIter *gdk_pixbuf_animation_get_iter (GdkPixbufAnimation *animation,
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const GTimeVal *start_time);
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GType gdk_pixbuf_animation_iter_get_type (void) G_GNUC_CONST;
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int gdk_pixbuf_animation_iter_get_delay_time (GdkPixbufAnimationIter *iter);
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GdkPixbuf *gdk_pixbuf_animation_iter_get_pixbuf (GdkPixbufAnimationIter *iter);
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gboolean gdk_pixbuf_animation_iter_on_currently_loading_frame (GdkPixbufAnimationIter *iter);
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gboolean gdk_pixbuf_animation_iter_advance (GdkPixbufAnimationIter *iter,
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const GTimeVal *current_time);
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#include <gdk-pixbuf/gdk-pixbuf-loader.h>
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#ifdef __cplusplus
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}
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#endif
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#endif
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