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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* nautilus-gdk-extensions.h: Graphics routines to augment what's in gdk.
Copyright (C) 1999, 2000 Eazel, Inc.
The Gnome Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The Gnome Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the Gnome Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
Authors: Darin Adler <darin@eazel.com>,
Ramiro Estrugo <ramiro@eazel.com>
*/
#ifndef NAUTILUS_GDK_EXTENSIONS_H
#define NAUTILUS_GDK_EXTENSIONS_H
#include <gdk/gdktypes.h>
#define NAUTILUS_RGB_COLOR_RED 0xFF0000
#define NAUTILUS_RGB_COLOR_GREEN 0x00FF00
#define NAUTILUS_RGB_COLOR_BLUE 0x0000FF
#define NAUTILUS_RGB_COLOR_WHITE 0xFFFFFF
#define NAUTILUS_RGB_COLOR_BLACK 0x000000
/* Pack RGBA values into a 32 bits */
#define NAUTILUS_RGBA_COLOR_PACK(_r, _g, _b, _a) \
( ((_a) << 24) | \
((_r) << 16) | \
((_g) << 8) | \
((_b) << 0) )
/* Access the individual RGBA components */
#define NAUTILUS_RGBA_COLOR_GET_R(_color) (((_color) >> 16) & 0xff)
#define NAUTILUS_RGBA_COLOR_GET_G(_color) (((_color) >> 8) & 0xff)
#define NAUTILUS_RGBA_COLOR_GET_B(_color) (((_color) >> 0) & 0xff)
#define NAUTILUS_RGBA_COLOR_GET_A(_color) (((_color) >> 24) & 0xff)
/* A gradient spec. is a string that contains a specifier for either a
color or a gradient. If the string has a "-" in it, then it's a gradient.
The gradient is vertical by default and the spec. can end with ":v" to indicate that.
If the gradient ends with ":h", the gradient is horizontal.
*/
char * nautilus_gradient_new (const char *start_color,
const char *end_color,
gboolean is_horizontal);
gboolean nautilus_gradient_is_gradient (const char *gradient_spec);
char * nautilus_gradient_get_start_color_spec (const char *gradient_spec);
char * nautilus_gradient_get_end_color_spec (const char *gradient_spec);
gboolean nautilus_gradient_is_horizontal (const char *gradient_spec);
char * nautilus_gradient_set_left_color_spec (const char *gradient_spec,
const char *left_color);
char * nautilus_gradient_set_top_color_spec (const char *gradient_spec,
const char *top_color);
char * nautilus_gradient_set_right_color_spec (const char *gradient_spec,
const char *right_color);
char * nautilus_gradient_set_bottom_color_spec (const char *gradient_spec,
const char *bottom_color);
/* A version of parse_color that substitutes a default color instead of returning
a boolean to indicate it cannot be parsed.
*/
void nautilus_gdk_coolor_parse_with_default (const char *color_spec,
const GdkColor *default_color,
GdkColor *parsed_color);
void nautilus_gdk_color_parse_with_white_default (const char *color_spec,
GdkColor *parsed_color);
guint32 nautilus_parse_rgb_with_default (const char *color_spec,
guint32 default_rgb);
guint32 nautilus_parse_rgb_with_white_default (const char *color_spec);
guint32 nautilus_rgb_shift_color (guint32 color,
float shift_by);
guint32 nautilus_gdk_color_to_rgb (const GdkColor *color);
/* Fill routines that take GdkRectangle parameters instead of four integers. */
void nautilus_fill_rectangle (GdkDrawable *drawable,
GdkGC *gc,
const GdkRectangle *rectangle);
void nautilus_fill_rectangle_with_color (GdkDrawable *drawable,
GdkGC *gc,
const GdkRectangle *rectangle,
guint32 rgb);
void nautilus_fill_rectangle_with_gradient (GdkDrawable *drawable,
GdkGC *gc,
const GdkRectangle *rectangle,
guint32 start_rgb,
guint32 end_rgb,
gboolean horizontal_gradient);
/* A routine to get a 50% gray stippled bitmap for use in some types of highlighting. */
GdkBitmap *nautilus_stipple_bitmap (void);
/* Misc GdkRectangle helper functions */
gboolean nautilus_rectangle_contains (const GdkRectangle *rectangle,
int x,
int y);
void nautilus_rectangle_inset (GdkRectangle *rectangle,
int x,
int y);
/* A basic operation we use for drawing gradients is interpolating two colors.*/
guint32 nautilus_interpolate_color (gdouble ratio,
guint32 start_rgb,
guint32 end_rgb);
/* Misc GdkFont helper functions */
gboolean nautilus_gdk_font_equal (GdkFont *font_a_null_allowed,
GdkFont *font_b_null_allowed);
GdkFont * nautilus_get_largest_fitting_font (const char *text_to_format,
int width,
const char *font_format);
GdkFont * nautilus_gdk_font_get_bold (const GdkFont *plain);
/* Misc GdkWindow helper functions */
void nautilus_gdk_window_bring_to_front (GdkWindow *window);
/* In GNOME 2.0 this function will be in the libraries */
void nautilus_set_mini_icon (GdkWindow *window,
GdkPixmap *pixmap,
GdkBitmap *mask);
GdkGC * nautilus_gdk_create_copy_area_gc (GdkWindow *window);
#endif /* NAUTILUS_GDK_EXTENSIONS_H */
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