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Diffstat (limited to 'eel/eel-gdk-extensions.h')
| -rw-r--r-- | eel/eel-gdk-extensions.h | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/eel/eel-gdk-extensions.h b/eel/eel-gdk-extensions.h new file mode 100644 index 00000000..d5e041c5 --- /dev/null +++ b/eel/eel-gdk-extensions.h @@ -0,0 +1,164 @@ +/* -*- 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 */ |