comparison: pidgin/pidgincellrendererexpander.c
pidgin/pidgincellrendererexpander.c
- changeset 40580
- fdf04534e7d1
- parent 40197
- 75ffd76260fc
equal
deleted
inserted
replaced
| 40579:882884b9bc97 | 40580:fdf04534e7d1 |
|---|---|
| 1 /* | |
| 2 * Pidgin - Internet Messenger | |
| 3 * Copyright (C) Pidgin Developers <devel@pidgin.im> | |
| 4 * | |
| 5 * Pidgin is the legal property of its developers, whose names are too numerous | |
| 6 * to list here. Please refer to the COPYRIGHT file distributed with this | |
| 7 * source distribution. | |
| 8 * | |
| 9 * This program is free software; you can redistribute it and/or modify | |
| 10 * it under the terms of the GNU General Public License as published by | |
| 11 * the Free Software Foundation; either version 2 of the License, or | |
| 12 * (at your option) any later version. | |
| 13 * | |
| 14 * This program is distributed in the hope that it will be useful, | |
| 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 * GNU General Public License for more details. | |
| 18 * | |
| 19 * You should have received a copy of the GNU General Public License | |
| 20 * along with this program; if not, see <https://www.gnu.org/licenses/>. | |
| 21 */ | |
| 22 | |
| 23 #include "pidgin/pidgincellrendererexpander.h" | |
| 24 | |
| 25 struct _PidginCellRendererExpander { | |
| 26 GtkCellRenderer parent; | |
| 27 }; | |
| 28 | |
| 29 G_DEFINE_TYPE(PidginCellRendererExpander, pidgin_cell_renderer_expander, | |
| 30 GTK_TYPE_CELL_RENDERER) | |
| 31 | |
| 32 /****************************************************************************** | |
| 33 * GtkCellRenderer Implementation | |
| 34 *****************************************************************************/ | |
| 35 static void | |
| 36 pidgin_cell_renderer_expander_get_size(GtkCellRenderer *renderer, | |
| 37 GtkWidget *widget, | |
| 38 const GdkRectangle *cell_area, | |
| 39 gint *x_offset, gint *y_offset, | |
| 40 gint *width, gint *height) | |
| 41 { | |
| 42 gint calc_width = 0, calc_height = 0; | |
| 43 gint xpad = 0, ypad = 0; | |
| 44 gint expander_size = 0; | |
| 45 | |
| 46 gtk_widget_style_get(widget, "expander-size", &expander_size, NULL); | |
| 47 | |
| 48 gtk_cell_renderer_get_padding(renderer, &xpad, &ypad); | |
| 49 calc_width = (xpad * 2) + expander_size; | |
| 50 calc_height = (ypad * 2) + expander_size; | |
| 51 | |
| 52 if(width) { | |
| 53 *width = calc_width; | |
| 54 } | |
| 55 | |
| 56 if(height) { | |
| 57 *height = calc_height; | |
| 58 } | |
| 59 | |
| 60 if(cell_area) { | |
| 61 gfloat xalign = 0.0f, yalign = 0.0f; | |
| 62 | |
| 63 gtk_cell_renderer_get_alignment(renderer, &xalign, &yalign); | |
| 64 | |
| 65 if(x_offset) { | |
| 66 *x_offset = (gint)(xalign * (cell_area->width - calc_width)); | |
| 67 *x_offset = MAX (*x_offset, 0); | |
| 68 } | |
| 69 | |
| 70 if(y_offset) { | |
| 71 *y_offset = (gint)(yalign * (cell_area->height - calc_height)); | |
| 72 *y_offset = MAX (*y_offset, 0); | |
| 73 } | |
| 74 } | |
| 75 } | |
| 76 | |
| 77 static void | |
| 78 pidgin_cell_renderer_expander_render(GtkCellRenderer *renderer, cairo_t *cr, | |
| 79 GtkWidget *widget, | |
| 80 const GdkRectangle *background_area, | |
| 81 const GdkRectangle *cell_area, | |
| 82 GtkCellRendererState flags) | |
| 83 { | |
| 84 GtkStateFlags state; | |
| 85 GtkStyleContext *context = NULL; | |
| 86 gboolean is_expanded = FALSE, is_expander = FALSE; | |
| 87 gint xpad = 0, ypad = 0; | |
| 88 gint width = cell_area->width, height = cell_area->height; | |
| 89 | |
| 90 /* if the row doesn't have children, bail out. */ | |
| 91 g_object_get(G_OBJECT(renderer), "is-expander", &is_expander, NULL); | |
| 92 if(!is_expander) { | |
| 93 return; | |
| 94 } | |
| 95 | |
| 96 /* Figure out the state of the renderer. */ | |
| 97 if(!gtk_widget_get_sensitive(widget)) { | |
| 98 state = GTK_STATE_FLAG_INSENSITIVE; | |
| 99 } else if(flags & GTK_CELL_RENDERER_PRELIT) { | |
| 100 state = GTK_STATE_FLAG_PRELIGHT; | |
| 101 } else if(gtk_widget_has_focus(widget) && flags & GTK_CELL_RENDERER_SELECTED) { | |
| 102 state = GTK_STATE_FLAG_ACTIVE; | |
| 103 } else { | |
| 104 state = GTK_STATE_FLAG_NORMAL; | |
| 105 } | |
| 106 | |
| 107 g_object_get(G_OBJECT(renderer), "is-expanded", &is_expanded, NULL); | |
| 108 if(is_expanded) { | |
| 109 state |= GTK_STATE_FLAG_CHECKED; | |
| 110 } else { | |
| 111 state &= ~GTK_STATE_FLAG_CHECKED; | |
| 112 } | |
| 113 | |
| 114 /* Build our style context */ | |
| 115 context = gtk_widget_get_style_context(widget); | |
| 116 gtk_style_context_add_class(context, GTK_STYLE_CLASS_VIEW); | |
| 117 gtk_style_context_add_class(context, GTK_STYLE_CLASS_EXPANDER); | |
| 118 gtk_style_context_set_state(context, state); | |
| 119 | |
| 120 /* Adjust the width and height according to the padding. */ | |
| 121 gtk_cell_renderer_get_padding(renderer, &xpad, &ypad); | |
| 122 width -= xpad * 2; | |
| 123 height -= ypad * 2; | |
| 124 | |
| 125 /* Render the arrow. */ | |
| 126 gtk_render_expander(context, cr, | |
| 127 cell_area->x + xpad, cell_area->y + ypad, | |
| 128 width, height); | |
| 129 } | |
| 130 | |
| 131 static gboolean | |
| 132 pidgin_cell_renderer_expander_activate(GtkCellRenderer *r, GdkEvent *event, | |
| 133 GtkWidget *widget, const gchar *p, | |
| 134 const GdkRectangle *bg, | |
| 135 const GdkRectangle *cell, | |
| 136 GtkCellRendererState flags) | |
| 137 { | |
| 138 GtkTreePath *path = gtk_tree_path_new_from_string(p); | |
| 139 | |
| 140 if(gtk_tree_view_row_expanded(GTK_TREE_VIEW(widget), path)) { | |
| 141 gtk_tree_view_collapse_row(GTK_TREE_VIEW(widget), path); | |
| 142 } else { | |
| 143 gtk_tree_view_expand_row(GTK_TREE_VIEW(widget),path,FALSE); | |
| 144 } | |
| 145 | |
| 146 gtk_tree_path_free(path); | |
| 147 | |
| 148 return FALSE; | |
| 149 } | |
| 150 | |
| 151 /****************************************************************************** | |
| 152 * GObject Implementation | |
| 153 *****************************************************************************/ | |
| 154 static void | |
| 155 pidgin_cell_renderer_expander_init (PidginCellRendererExpander *renderer) { | |
| 156 /* there's no accessor for setting the mode, so we have to set the property | |
| 157 * explicitly. | |
| 158 */ | |
| 159 g_object_set(G_OBJECT(renderer), "mode", | |
| 160 GTK_CELL_RENDERER_MODE_ACTIVATABLE, NULL); | |
| 161 | |
| 162 gtk_cell_renderer_set_padding(GTK_CELL_RENDERER(renderer), 0, 2); | |
| 163 } | |
| 164 | |
| 165 static void | |
| 166 pidgin_cell_renderer_expander_class_init(PidginCellRendererExpanderClass *klass) | |
| 167 { | |
| 168 GtkCellRendererClass *renderer_class = GTK_CELL_RENDERER_CLASS(klass); | |
| 169 | |
| 170 renderer_class->get_size = pidgin_cell_renderer_expander_get_size; | |
| 171 renderer_class->render = pidgin_cell_renderer_expander_render; | |
| 172 renderer_class->activate = pidgin_cell_renderer_expander_activate; | |
| 173 } | |
| 174 | |
| 175 /****************************************************************************** | |
| 176 * Public API | |
| 177 *****************************************************************************/ | |
| 178 GtkCellRenderer * | |
| 179 pidgin_cell_renderer_expander_new(void) { | |
| 180 return g_object_new(PIDGIN_TYPE_CELL_RENDERER_EXPANDER, NULL); | |
| 181 } |
