2 * Copyright (C) 2004 John Ellis
3 * Copyright (C) 2008 - 2016 The Geeqie Team
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
25 #include <gdk-pixbuf/gdk-pixbuf.h>
28 #include <pango/pango.h>
32 gboolean pixbuf_to_file_as_png (GdkPixbuf *pixbuf, const gchar *filename);
34 void pixbuf_inline_register_stock_icons();
35 gboolean register_theme_icon_as_stock(const gchar *key, const gchar *icon);
37 GdkPixbuf *pixbuf_inline(const gchar *key);
38 GdkPixbuf *pixbuf_fallback(FileData *fd, gint requested_width, gint requested_height);
40 gboolean pixbuf_scale_aspect(gint req_w, gint req_h, gint old_w, gint old_h, gint *new_w, gint *new_h);
42 #define PIXBUF_INLINE_ARCHIVE "gq-icon-archive-file"
43 #define PIXBUF_INLINE_BROKEN "gq-icon-broken"
44 #define PIXBUF_INLINE_COLLECTION "gq-icon-collection"
45 #define PIXBUF_INLINE_ICON_180 "gq-icon-rotate-180"
46 #define PIXBUF_INLINE_ICON_BOOK "gq-icon-book"
47 #define PIXBUF_INLINE_ICON_CONFIG "gq-icon-config"
48 #define PIXBUF_INLINE_ICON_DRAW_RECTANGLE "gq-icon-draw-rectangle"
49 #define PIXBUF_INLINE_ICON_EXIF "gq-icon-exif"
50 #define PIXBUF_INLINE_ICON_EXPOSURE "gq-icon-exposure"
51 #define PIXBUF_INLINE_ICON_FLOAT "gq-icon-float"
52 #define PIXBUF_INLINE_ICON "gqview-icon"
53 #define PIXBUF_INLINE_ICON_GRAYSCALE "gq-icon-grayscale"
54 #define PIXBUF_INLINE_ICON_HEIF "gq-icon-heic"
55 #define PIXBUF_INLINE_ICON_HIDETOOLS "gq-icon-hidetools"
56 #define PIXBUF_INLINE_ICON_MAINTENANCE "gq-icon-maintenance"
57 #define PIXBUF_INLINE_ICON_MARKS "gq-icon-marks"
58 #define PIXBUF_INLINE_ICON_MOVE "gq-icon-move"
59 #define PIXBUF_INLINE_ICON_ORIGINAL "gq-icon-original"
60 #define PIXBUF_INLINE_ICON_PANORAMA "gq-icon-panorama"
61 #define PIXBUF_INLINE_ICON_PDF "gq-icon-pdf"
62 #define PIXBUF_INLINE_ICON_PROPERTIES "gq-icon-properties"
63 #define PIXBUF_INLINE_ICON_RENAME "gq-icon-rename"
64 #define PIXBUF_INLINE_ICON_SELECT_ALL "gq-icon-select-all"
65 #define PIXBUF_INLINE_ICON_SELECT_INVERT "gq-icon-select-invert"
66 #define PIXBUF_INLINE_ICON_SELECT_NONE "gq-icon-select-none"
67 #define PIXBUF_INLINE_ICON_SELECT_RECTANGLE "gq-icon-select-rectangle"
68 #define PIXBUF_INLINE_ICON_SORT "gq-icon-sort"
69 #define PIXBUF_INLINE_ICON_THUMB "gq-icon-thumb"
70 #define PIXBUF_INLINE_ICON_TOOLS "gq-icon-tools"
71 #define PIXBUF_INLINE_ICON_VIEW "gq-icon-view"
72 #define PIXBUF_INLINE_ICON_ZOOMFILLHOR "gq-icon-zoomfillhor"
73 #define PIXBUF_INLINE_ICON_ZOOMFILLVERT "gq-icon-zoomfillvert"
74 #define PIXBUF_INLINE_LOGO "geeqie-logo"
75 #define PIXBUF_INLINE_METADATA "gq-icon-metadata"
76 #define PIXBUF_INLINE_SCROLLER "gq-scroller"
77 #define PIXBUF_INLINE_SPLIT_PANE_SYNC "gq-icon-split-pane-sync"
78 #define PIXBUF_INLINE_UNKNOWN "gq-icon-unknown"
79 #define PIXBUF_INLINE_VIDEO "gq-icon-video"
81 GdkPixbuf *pixbuf_copy_rotate_90(GdkPixbuf *src, gboolean counter_clockwise);
82 GdkPixbuf *pixbuf_copy_mirror(GdkPixbuf *src, gboolean mirror, gboolean flip);
83 GdkPixbuf* pixbuf_apply_orientation(GdkPixbuf *pixbuf, gint orientation);
86 * @brief Composites the fill color with the existing contents of the pixbuf,
87 * within the specified region, with a proportion set by the alpha (`a`)
89 * @param pb The `GdkPixbuf` to paint into.
90 * @param x,y Coordinates of the top-left corner of the first region.
91 * @param w,h Extent of the first region.
92 * @param r,g,b Fill color.
93 * @param a The alpha to use for compositing. a=255 is solid (fully the new
94 * color). a=0 is tranparent (fully the original contents).
96 void pixbuf_draw_rect_fill(GdkPixbuf *pb,
97 gint x, gint y, gint w, gint h,
98 gint r, gint g, gint b, gint a);
101 * @brief Fills the specified region of the pixbuf with the specified color.
102 * @param pb The `GdkPixbuf` to paint into.
103 * @param x,y Coordinates of the top-left corner of the first region.
104 * @param w,h Extent of the first region.
105 * @param r,g,b,a Fill color and alpha.
107 void pixbuf_set_rect_fill(GdkPixbuf *pb,
108 gint x, gint y, gint w, gint h,
109 gint r, gint g, gint b, gint a);
112 * @brief Draws a rectangular stroke of the specified stroke width and color
113 * around the specified region of the pixbuf.
114 * @param pb The `GdkPixbuf` to paint into.
115 * @param x,y Coordinates of the top-left corner of the region.
116 * @param w,h Extent of the region.
117 * @param r,g,b,a Line color and alpha.
118 * @param left_width Stroke width of the left edge of the rectangle.
119 * @param right_width Stroke width of the right edge of the rectangle.
120 * @param top_width Stroke width of the top edge of the rectangle.
121 * @param bottom_width Stroke width of the bottom edge of the rectangle.
123 void pixbuf_set_rect(GdkPixbuf *pb,
124 gint x, gint y, gint w, gint h,
125 gint r, gint g, gint b, gint a,
126 gint left_width, gint right_width, gint top_width, gint bottom_width);
129 * @brief Sets the specified pixel of the pixbuf to the specified color.
130 * @param pb The `GdkPixbuf` to paint into.
131 * @param x,y Coordinates of the pixel to set.
132 * @param r,g,b,a Color and alpha.
134 void pixbuf_pixel_set(GdkPixbuf *pb, gint x, gint y, gint r, gint g, gint b, gint a);
137 void pixbuf_draw_layout(GdkPixbuf *pixbuf, PangoLayout *layout, GtkWidget *widget,
139 guint8 r, guint8 g, guint8 b, guint8 a);
143 * @brief Draws a filled triangle of the specified color into the pixbuf, constrained
144 * to the specified clip region.
145 * @param pb The `GdkPixbuf` to paint into.
146 * @param x1,y1 Coordinates of the first corner of the triangle.
147 * @param x2,y2 Coordinates of the second corner of the triangle.
148 * @param x3,y3 Coordinates of the third corner of the triangle.
149 * @param clip_x,clip_y Coordinates of the top-left corner of the clipping region.
150 * @param clip_w,clip_h Extent of the clipping region.
151 * @param r,g,b,a Color and alpha.
153 void pixbuf_draw_triangle(GdkPixbuf *pb,
154 gint clip_x, gint clip_y, gint clip_w, gint clip_h,
155 gint x1, gint y1, gint x2, gint y2, gint x3, gint y3,
156 guint8 r, guint8 g, guint8 b, guint8 a);
159 * @brief Draws the sub-segment of the specified line segment that lies within the
160 * clip region into the pixbuf.
161 * @param pb The `GdkPixbuf` to paint into.
162 * @param clip_x,clip_y Coordinates of the top-left corner of the clipping region.
163 * @param clip_w,clip_h Extent of the clipping region.
164 * @param x1,y1 Coordinates of the first point of the line segment.
165 * @param x2,y2 Coordinates of the second point of the line segment.
166 * @param r,g,b,a Color and alpha.
168 void pixbuf_draw_line(GdkPixbuf *pb,
169 gint clip_x, gint clip_y, gint clip_w, gint clip_h,
170 gint x1, gint y1, gint x2, gint y2,
171 guint8 r, guint8 g, guint8 b, guint8 a);
174 * @brief Composites a "shaded" region of the specified color and with the
175 * specified size and border gradient width into the clip region of the
177 * @param pb The `GdkPixbuf` to paint into.
178 * @param clip_x,clip_y Coordinates of the top-left corner of the clipping region.
179 * @param clip_w,clip_h Extent of the clipping region.
180 * @param x,y Coordinates of the top-left corner of the shaded region.
181 * @param w,h Extent of the shaded region.
182 * @param border The thickness, in pixels, of the gradient border around the
183 * fully-shaded region.
184 * @param r,g,b Shadow base color.
185 * @param a The max shadow composition fraction. Note that any alpha value of the
186 * original pixel will remain untouched.
188 void pixbuf_draw_shadow(GdkPixbuf *pb,
189 gint clip_x, gint clip_y, gint clip_w, gint clip_h,
190 gint x, gint y, gint w, gint h, gint border,
191 guint8 r, guint8 g, guint8 b, guint8 a);
194 * @brief Sets the r, g, and b values for each pixel within the specified region
195 * of the pixbuf the average of the original values for that pixel.
196 * @param pb The `GdkPixbuf` to paint into.
197 * @param x,y Coordinates of the top-left corner of the region.
198 * @param w,h Extent of the region.
200 void pixbuf_desaturate_rect(GdkPixbuf *pb,
201 gint x, gint y, gint w, gint h);
203 * @brief Sets each full-black `(0, 0, 0)` or full-white `(255, 255, 255)` pixel in the
204 * specified pixbuf region to full-red `(255, 0, 0)`. Does not change alpha.
205 * @param pb The `GdkPixbuf` to paint into.
206 * @param x,y Coordinates of the top-left corner of the first region.
207 * @param w,h Extent of the first region.
209 void pixbuf_highlight_overunderexposed(GdkPixbuf *pb,
210 gint x, gint y, gint w, gint h);
212 * @brief Sets the alpha channel to 255 (fully opaque) for every pixel in the specified
214 * @param pb The `GdkPixbuf` to paint into.
215 * @param x,y Coordinates of the top-left corner of the first region.
216 * @param w,h Extent of the first region.
218 void pixbuf_ignore_alpha_rect(GdkPixbuf *pb,
219 gint x, gint y, gint w, gint h);
223 // TODO(xsdg): Rename this function to util_intersect_regions.
225 * @brief Performs an intersection of the two specified regions.
226 * @param[in] x,y Coordinates of the top-left corner of the first region.
227 * @param[in] w,h Extent of the first region.
228 * @param[in] clip_x,clip_y Coordinates of the top-left corner of the second region.
229 * @param[in] clip_w,clip_h Extent of the second region.
230 * @param[out] rx,ry Computed coordinates of the top-left corner of the intersection.
231 * @param[out] rw,rh Computed extent of the intersection.
232 * @retval FALSE The specified regions are non-overlapping.
233 * @retval TRUE The intersection operation was performed, and the output params were set.
235 gboolean util_clip_region(gint x, gint y, gint w, gint h,
236 gint clip_x, gint clip_y, gint clip_w, gint clip_h,
237 gint *rx, gint *ry, gint *rw, gint *rh);
239 // TODO(xsdg): Rename this function to util_triangle_bounding_box.
241 * @brief Computes the bounding box for the specified triangle.
242 * @param[in] x1,y1 Coordinates of the first corner of the triangle.
243 * @param[in] x2,y2 Coordinates of the second corner of the triangle.
244 * @param[in] x3,y3 Coordinates of the third corner of the triangle.
245 * @param[out] rx,ry Computed coordinates of the top-left corner of the bounding box.
246 * @param[out] rw,rh Computed extent of the bounding box.
248 void util_clip_triangle(gint x1, gint y1, gint x2, gint y2, gint x3, gint y3,
249 gint &rx, gint &ry, gint &rw, gint &rh);
253 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */