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+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
+
+/* eel-gdk-extensions.h: Graphics routines to augment what's in gdk.
+
+ Copyright (C) 1999, 2000 Eazel, Inc.
+
+ The Mate 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 Mate 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 Mate 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 <[email protected]>,
+ Ramiro Estrugo <[email protected]>
+*/
+
+#ifndef EEL_GDK_EXTENSIONS_H
+#define EEL_GDK_EXTENSIONS_H
+
+#include <gdk/gdk.h>
+
+#define EEL_RGB_COLOR_RED 0xFF0000
+#define EEL_RGB_COLOR_GREEN 0x00FF00
+#define EEL_RGB_COLOR_BLUE 0x0000FF
+#define EEL_RGB_COLOR_WHITE 0xFFFFFF
+#define EEL_RGB_COLOR_BLACK 0x000000
+
+#define EEL_RGBA_COLOR_OPAQUE_RED 0xFFFF0000
+#define EEL_RGBA_COLOR_OPAQUE_GREEN 0xFF00FF00
+#define EEL_RGBA_COLOR_OPAQUE_BLUE 0xFF0000FF
+#define EEL_RGBA_COLOR_OPAQUE_WHITE 0xFFFFFFFF
+#define EEL_RGBA_COLOR_OPAQUE_BLACK 0xFF000000
+
+/* Pack RGBA values into 32 bits */
+#define EEL_RGBA_COLOR_PACK(r, g, b, a) \
+( (((guint32)a) << 24) | \
+ (((guint32)r) << 16) | \
+ (((guint32)g) << 8) | \
+ (((guint32)b) << 0) )
+
+/* Pack opaque RGBA values into 32 bits */
+#define EEL_RGB_COLOR_PACK(r, g, b) \
+EEL_RGBA_COLOR_PACK((r), (g), (b), 0xFF)
+
+/* Access the individual RGBA components */
+#define EEL_RGBA_COLOR_GET_R(color) (((color) >> 16) & 0xff)
+#define EEL_RGBA_COLOR_GET_G(color) (((color) >> 8) & 0xff)
+#define EEL_RGBA_COLOR_GET_B(color) (((color) >> 0) & 0xff)
+#define EEL_RGBA_COLOR_GET_A(color) (((color) >> 24) & 0xff)
+
+/* Bits returned by eel_gdk_parse_geometry */
+typedef enum
+{
+ EEL_GDK_NO_VALUE = 0x00,
+ EEL_GDK_X_VALUE = 0x01,
+ EEL_GDK_Y_VALUE = 0x02,
+ EEL_GDK_WIDTH_VALUE = 0x04,
+ EEL_GDK_HEIGHT_VALUE = 0x08,
+ EEL_GDK_ALL_VALUES = 0x0f,
+ EEL_GDK_X_NEGATIVE = 0x10,
+ EEL_GDK_Y_NEGATIVE = 0x20
+} EelGdkGeometryFlags;
+
+/* 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 * eel_gradient_new (const char *start_color,
+ const char *end_color,
+ gboolean is_horizontal);
+char * eel_gradient_parse_one_color_spec (const char *spec,
+ int *percent,
+ const char **next_spec);
+gboolean eel_gradient_is_gradient (const char *gradient_spec);
+char * eel_gradient_get_start_color_spec (const char *gradient_spec);
+char * eel_gradient_get_end_color_spec (const char *gradient_spec);
+gboolean eel_gradient_is_horizontal (const char *gradient_spec);
+char * eel_gradient_set_left_color_spec (const char *gradient_spec,
+ const char *left_color);
+char * eel_gradient_set_top_color_spec (const char *gradient_spec,
+ const char *top_color);
+char * eel_gradient_set_right_color_spec (const char *gradient_spec,
+ const char *right_color);
+char * eel_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 eel_gdk_color_parse_with_default (const char *color_spec,
+ const GdkColor *default_color,
+ GdkColor *parsed_color);
+void eel_gdk_color_parse_with_white_default (const char *color_spec,
+ GdkColor *parsed_color);
+guint32 eel_parse_rgb_with_default (const char *color_spec,
+ guint32 default_rgb);
+guint32 eel_parse_rgb_with_white_default (const char *color_spec);
+guint32 eel_rgb_shift_color (guint32 color,
+ float shift_by);
+guint32 eel_rgb16_to_rgb (gushort r,
+ gushort g,
+ gushort b);
+guint32 eel_rgb8_to_rgb (guchar r,
+ guchar g,
+ guchar b);
+guint32 eel_gdk_color_to_rgb (const GdkColor *color);
+GdkColor eel_gdk_rgb_to_color (guint32 color);
+char * eel_gdk_rgb_to_color_spec (guint32 color);
+
+gboolean eel_gdk_color_is_dark (GdkColor *color);
+
+/* A routine to get a 50% gray stippled bitmap for use in some types of highlighting. */
+GdkBitmap * eel_stipple_bitmap_for_screen (GdkScreen *screen);
+GdkBitmap * eel_stipple_bitmap (void);
+
+
+/* Misc GdkRectangle helper functions */
+gboolean eel_gdk_rectangle_contains_rectangle (GdkRectangle outer,
+ GdkRectangle inner);
+
+
+/* A basic operation we use for drawing gradients is interpolating two colors.*/
+guint32 eel_interpolate_color (gdouble ratio,
+ guint32 start_rgb,
+ guint32 end_rgb);
+
+/* Misc GdkWindow helper functions */
+void eel_gdk_window_bring_to_front (GdkWindow *window);
+void eel_gdk_window_set_invisible_cursor (GdkWindow *window);
+void eel_gdk_window_focus (GdkWindow *window,
+ guint32 timestamp);
+void eel_gdk_window_set_wm_protocols (GdkWindow *window,
+ GdkAtom *protocols,
+ int nprotocols);
+
+
+void eel_gdk_window_set_wm_hints_input (GdkWindow *w,
+ gboolean status);
+
+/* Wrapper for XParseGeometry */
+EelGdkGeometryFlags eel_gdk_parse_geometry (const char *string,
+ int *x_return,
+ int *y_return,
+ guint *width_return,
+ guint *height_return);
+void eel_gdk_draw_layout_with_drop_shadow (GdkDrawable *drawable,
+ GdkGC *gc,
+ GdkColor *text_color,
+ GdkColor *shadow_color,
+ int x,
+ int y,
+ PangoLayout *layout);
+#endif /* EEL_GDK_EXTENSIONS_H */