comparison: pidgin/gtkdnd-hints.c
pidgin/gtkdnd-hints.c
- changeset 16238
- 33bf2fd32108
- parent 10871
- c0282a4f2250
- parent 15946
- d40e8847e825
equal
deleted
inserted
replaced
| 13071:b98e72d4089a | 16238:33bf2fd32108 |
|---|---|
| 1 /* | |
| 2 * @file gtkdnd-hints.c GTK+ Drag-and-Drop arrow hints | |
| 3 * @ingroup gtkui | |
| 4 * | |
| 5 * pidgin | |
| 6 * | |
| 7 * Pidgin is the legal property of its developers, whose names are too numerous | |
| 8 * to list here. Please refer to the COPYRIGHT file distributed with this | |
| 9 * source distribution. | |
| 10 * | |
| 11 * This program is free software; you can redistribute it and/or modify | |
| 12 * it under the terms of the GNU General Public License as published by | |
| 13 * the Free Software Foundation; either version 2, or(at your option) | |
| 14 * any later version. | |
| 15 * | |
| 16 * This program is distributed in the hope that it will be useful, | |
| 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 19 * GNU General Public License for more details. | |
| 20 * | |
| 21 * You should have received a copy of the GNU General Public License | |
| 22 * along with this program; if not, write to the Free Software | |
| 23 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
| 24 */ | |
| 25 | |
| 26 #include "gtkdnd-hints.h" | |
| 27 | |
| 28 #include <gtk/gtk.h> | |
| 29 #include <gdk/gdk.h> | |
| 30 #include <gdk-pixbuf/gdk-pixbuf.h> | |
| 31 | |
| 32 #ifdef _WIN32 | |
| 33 #include "win32dep.h" | |
| 34 #endif | |
| 35 | |
| 36 typedef struct | |
| 37 { | |
| 38 GtkWidget *widget; | |
| 39 gchar *filename; | |
| 40 gint ox; | |
| 41 gint oy; | |
| 42 | |
| 43 } HintWindowInfo; | |
| 44 | |
| 45 /** | |
| 46 * Info about each hint widget. See DndHintWindowId enum. | |
| 47 */ | |
| 48 static HintWindowInfo hint_windows[] = { | |
| 49 { NULL, "tb_drag_arrow_up.xpm", -13/2, 0 }, | |
| 50 { NULL, "tb_drag_arrow_down.xpm", -13/2, -16 }, | |
| 51 { NULL, "tb_drag_arrow_left.xpm", 0, -13/2 }, | |
| 52 { NULL, "tb_drag_arrow_right.xpm", -16, -13/2 }, | |
| 53 { NULL, NULL, 0, 0 } | |
| 54 }; | |
| 55 | |
| 56 static GtkWidget * | |
| 57 dnd_hints_init_window(const gchar *fname) | |
| 58 { | |
| 59 GdkPixbuf *pixbuf; | |
| 60 GdkPixmap *pixmap; | |
| 61 GdkBitmap *bitmap; | |
| 62 GtkWidget *pix; | |
| 63 GtkWidget *win; | |
| 64 | |
| 65 pixbuf = gdk_pixbuf_new_from_file(fname, NULL); | |
| 66 g_return_val_if_fail(pixbuf, NULL); | |
| 67 | |
| 68 gdk_pixbuf_render_pixmap_and_mask(pixbuf, &pixmap, &bitmap, 128); | |
| 69 g_object_unref(G_OBJECT(pixbuf)); | |
| 70 | |
| 71 gtk_widget_push_colormap(gdk_rgb_get_colormap()); | |
| 72 win = gtk_window_new(GTK_WINDOW_POPUP); | |
| 73 pix = gtk_image_new_from_pixmap(pixmap, bitmap); | |
| 74 gtk_container_add(GTK_CONTAINER(win), pix); | |
| 75 gtk_widget_shape_combine_mask(win, bitmap, 0, 0); | |
| 76 gtk_widget_pop_colormap(); | |
| 77 | |
| 78 g_object_unref(G_OBJECT(pixmap)); | |
| 79 g_object_unref(G_OBJECT(bitmap)); | |
| 80 | |
| 81 gtk_widget_show_all(pix); | |
| 82 | |
| 83 return win; | |
| 84 } | |
| 85 | |
| 86 static void | |
| 87 get_widget_coords(GtkWidget *w, gint *x1, gint *y1, gint *x2, gint *y2) | |
| 88 { | |
| 89 gint ox, oy, width, height; | |
| 90 | |
| 91 if (w->parent && w->parent->window == w->window) | |
| 92 { | |
| 93 get_widget_coords(w->parent, &ox, &oy, NULL, NULL); | |
| 94 ox += w->allocation.x; | |
| 95 oy += w->allocation.y; | |
| 96 height = w->allocation.height; | |
| 97 width = w->allocation.width; | |
| 98 } | |
| 99 else | |
| 100 { | |
| 101 gdk_window_get_origin(w->window, &ox, &oy); | |
| 102 gdk_drawable_get_size(w->window, &width, &height); | |
| 103 } | |
| 104 | |
| 105 if (x1) *x1 = ox; | |
| 106 if (y1) *y1 = oy; | |
| 107 if (x2) *x2 = ox + width; | |
| 108 if (y2) *y2 = oy + height; | |
| 109 } | |
| 110 | |
| 111 static void | |
| 112 dnd_hints_init(void) | |
| 113 { | |
| 114 static gboolean done = FALSE; | |
| 115 gint i; | |
| 116 | |
| 117 if (done) | |
| 118 return; | |
| 119 | |
| 120 done = TRUE; | |
| 121 | |
| 122 for (i = 0; hint_windows[i].filename != NULL; i++) { | |
| 123 gchar *fname; | |
| 124 | |
| 125 fname = g_build_filename(DATADIR, "pixmaps", "pidgin", | |
| 126 hint_windows[i].filename, NULL); | |
| 127 | |
| 128 hint_windows[i].widget = dnd_hints_init_window(fname); | |
| 129 | |
| 130 g_free(fname); | |
| 131 } | |
| 132 } | |
| 133 | |
| 134 void | |
| 135 dnd_hints_hide_all(void) | |
| 136 { | |
| 137 gint i; | |
| 138 | |
| 139 for (i = 0; hint_windows[i].filename != NULL; i++) | |
| 140 dnd_hints_hide(i); | |
| 141 } | |
| 142 | |
| 143 void | |
| 144 dnd_hints_hide(DndHintWindowId i) | |
| 145 { | |
| 146 GtkWidget *w = hint_windows[i].widget; | |
| 147 | |
| 148 if (w && GTK_IS_WIDGET(w)) | |
| 149 gtk_widget_hide(w); | |
| 150 } | |
| 151 | |
| 152 void | |
| 153 dnd_hints_show(DndHintWindowId id, gint x, gint y) | |
| 154 { | |
| 155 GtkWidget *w; | |
| 156 | |
| 157 dnd_hints_init(); | |
| 158 | |
| 159 w = hint_windows[id].widget; | |
| 160 | |
| 161 if (w && GTK_IS_WIDGET(w)) | |
| 162 { | |
| 163 gtk_window_move(GTK_WINDOW(w), hint_windows[id].ox + x, | |
| 164 hint_windows[id].oy + y); | |
| 165 gtk_widget_show(w); | |
| 166 } | |
| 167 } | |
| 168 | |
| 169 void | |
| 170 dnd_hints_show_relative(DndHintWindowId id, GtkWidget *widget, | |
| 171 DndHintPosition horiz, DndHintPosition vert) | |
| 172 { | |
| 173 gint x1, x2, y1, y2; | |
| 174 gint x = 0, y = 0; | |
| 175 | |
| 176 get_widget_coords(widget, &x1, &y1, &x2, &y2); | |
| 177 | |
| 178 switch (horiz) | |
| 179 { | |
| 180 case HINT_POSITION_RIGHT: x = x2; break; | |
| 181 case HINT_POSITION_LEFT: x = x1; break; | |
| 182 case HINT_POSITION_CENTER: x = (x1 + x2) / 2; break; | |
| 183 default: | |
| 184 /* should not happen */ | |
| 185 g_warning("Invalid parameter to dnd_hints_show_relative"); | |
| 186 break; | |
| 187 } | |
| 188 | |
| 189 switch (vert) | |
| 190 { | |
| 191 case HINT_POSITION_TOP: y = y1; break; | |
| 192 case HINT_POSITION_BOTTOM: y = y2; break; | |
| 193 case HINT_POSITION_CENTER: y = (y1 + y2) / 2; break; | |
| 194 default: | |
| 195 /* should not happen */ | |
| 196 g_warning("Invalid parameter to dnd_hints_show_relative"); | |
| 197 break; | |
| 198 } | |
| 199 | |
| 200 dnd_hints_show(id, x, y); | |
| 201 } | |
| 202 |
