mdw@git.distorted.org.uk Git - disorder/blob - disobedience/misc.c

   1 /*
   2  * This file is part of DisOrder
   3  * Copyright (C) 2006-2008, 2010 Richard Kettlewell
   4  *
   5  * This program is free software: you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation, either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18 /** @file disobedience/misc.c
  19  * @brief Miscellaneous GTK+ interfacing stuff
  20  */
  21
  22 #include "disobedience.h"
  23 #include "table.h"
  24
  25 /** @brief Embedded image */
  26 struct image {
  27   /** @brief Image name */
  28   const char *name;
  29   /** @brief Image data in GDK pixbuf inline format */
  30   const guint8 *data;
  31 };
  32
  33 #include "../images/images.h"
  34
  35 /* Miscellaneous GTK+ stuff ------------------------------------------------ */
  36
  37 /* Functions */
  38
  39 /** @brief Put scrollbars around a widget
  40  * @param child Widget to surround
  41  * @return Scroll widget
  42  */
  43 GtkWidget *scroll_widget(GtkWidget *child) {
  44   GtkWidget *scroller = gtk_scrolled_window_new(0, 0);
  45   GtkAdjustment *adj;
  46
  47   gtk_widget_set_style(scroller, tool_style);
  48   D(("scroll_widget"));
  49   /* Why isn't _AUTOMATIC the default? */
  50   gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroller),
  51                                  GTK_POLICY_AUTOMATIC,
  52                                  GTK_POLICY_AUTOMATIC);
  53   if(GTK_IS_LAYOUT(child)
  54      || GTK_IS_TREE_VIEW(child)) {
  55     /* Child widget has native scroll support */
  56     gtk_container_add(GTK_CONTAINER(scroller), child);
  57     /* Fix up the step increments if they are 0 (seems like an odd default?) */
  58     if(GTK_IS_LAYOUT(child)) {
  59       adj = gtk_layout_get_hadjustment(GTK_LAYOUT(child));
  60       if(!adj->step_increment) adj->step_increment = 16;
  61       adj = gtk_layout_get_vadjustment(GTK_LAYOUT(child));
  62       if(!adj->step_increment) adj->step_increment = 16;
  63     }
  64   } else {
  65     /* Child widget requires a viewport */
  66     gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(scroller),
  67                                           child);
  68     gtk_widget_set_style(gtk_bin_get_child(GTK_BIN(scroller)), tool_style);
  69   }
  70   gtk_widget_set_style(GTK_SCROLLED_WINDOW(scroller)->hscrollbar, tool_style);
  71   gtk_widget_set_style(GTK_SCROLLED_WINDOW(scroller)->vscrollbar, tool_style);
  72   return scroller;
  73 }
  74
  75 /** @brief Put a frame round a widget
  76  * @param w Widget
  77  * @param label Label or NULL
  78  * @return Frame widget
  79  */
  80 GtkWidget *frame_widget(GtkWidget *w, const char *label) {
  81   GtkWidget *const frame = gtk_frame_new(label);
  82   GtkWidget *const hbox = gtk_hbox_new(FALSE, 0);
  83   GtkWidget *const vbox = gtk_vbox_new(FALSE, 0);
  84   /* We want 4 pixels outside the frame boundary... */
  85   gtk_container_set_border_width(GTK_CONTAINER(frame), 4);
  86   /* ...and 4 pixels inside */
  87   gtk_box_pack_start(GTK_BOX(hbox), w, TRUE/*expand*/, TRUE/*fill*/, 4);
  88   gtk_box_pack_start(GTK_BOX(vbox), hbox, TRUE/*expand*/, TRUE/*fill*/, 4);
  89   gtk_container_add(GTK_CONTAINER(frame), vbox);
  90   return frame;
  91 }
  92
  93 /** @brief Find an image
  94  * @param name Relative path to image
  95  * @return pixbuf containing image
  96  *
  97  * Images are cached so it's perfectly sensible to call this lots of times even
  98  * for the same image.
  99  *
 100  * Images are searched for in @c pkgdatadir/static.
 101  */
 102 GdkPixbuf *find_image(const char *name) {
 103   static const struct cache_type image_cache_type = { INT_MAX };
 104
 105   GdkPixbuf *pb;
 106   char *path;
 107   GError *err = 0;
 108   int n;
 109
 110   if(!(pb = (GdkPixbuf *)cache_get(&image_cache_type, name))) {
 111     if((n = TABLE_FIND(images, name, name)) >= 0) {
 112       /* Use the built-in copy */
 113       if(!(pb = gdk_pixbuf_new_from_inline(-1, images[n].data, FALSE, &err))) {
 114         disorder_error(0, "%s", err->message);
 115         return 0;
 116       }
 117     } else {
 118       /* See if there's a copy on disk */
 119       byte_xasprintf(&path, "%s/static/%s", pkgdatadir, name);
 120       if(!(pb = gdk_pixbuf_new_from_file(path, &err))) {
 121         disorder_error(0, "%s", err->message);
 122         return 0;
 123       }
 124     }
 125     cache_put(&image_cache_type, name,  pb);
 126   }
 127   return pb;
 128 }
 129
 130 /** @brief Pop up a message */
 131 void popup_msg(GtkMessageType mt, const char *msg) {
 132   popup_submsg(toplevel, mt, msg);
 133 }
 134
 135 void popup_submsg(GtkWidget *parent, GtkMessageType mt, const char *msg) {
 136   GtkWidget *w;
 137
 138   w = gtk_message_dialog_new(GTK_WINDOW(parent),
 139                              GTK_DIALOG_MODAL|GTK_DIALOG_DESTROY_WITH_PARENT,
 140                              mt,
 141                              GTK_BUTTONS_CLOSE,
 142                              "%s", msg);
 143   gtk_widget_set_style(w, tool_style);
 144   gtk_dialog_run(GTK_DIALOG(w));
 145   gtk_widget_destroy(w);
 146 }
 147
 148 /** @brief Pop up an error message */
 149 void fpopup_msg(GtkMessageType mt, const char *fmt, ...) {
 150   va_list ap;
 151   char *msg;
 152
 153   va_start(ap, fmt);
 154   byte_xvasprintf(&msg, fmt, ap);
 155   va_end(ap);
 156   popup_msg(mt, msg);
 157 }
 158
 159 /** @brief Create a button with an icon in it
 160  * @param path (relative) path to image
 161  * @param tip Tooltip or NULL to not set one
 162  * @return Button
 163  */
 164 GtkWidget *iconbutton(const char *path, const char *tip) {
 165   GtkWidget *button, *content;
 166   GdkPixbuf *pb;
 167
 168   button = gtk_button_new();
 169   if((pb = find_image(path))) {
 170     content = gtk_image_new_from_pixbuf(pb);
 171   } else {
 172     content = gtk_label_new(path);
 173   }
 174   gtk_widget_set_style(button, tool_style);
 175   gtk_widget_set_style(content, tool_style);
 176   gtk_container_add(GTK_CONTAINER(button), content);
 177   if(tip)
 178     gtk_widget_set_tooltip_text(button, tip);
 179   return button;
 180 }
 181
 182 /** @brief Create buttons and pack them into a box, which is returned */
 183 GtkWidget *create_buttons_box(struct button *buttons,
 184                               size_t nbuttons,
 185                               GtkWidget *box) {
 186   size_t n;
 187
 188   for(n = 0; n < nbuttons; ++n) {
 189     buttons[n].widget = gtk_button_new_from_stock(buttons[n].stock);
 190     gtk_widget_set_style(buttons[n].widget, tool_style);
 191     g_signal_connect(G_OBJECT(buttons[n].widget), "clicked",
 192                      G_CALLBACK(buttons[n].clicked), 0);
 193     void (*pack)(GtkBox *box,
 194                  GtkWidget *child,
 195                  gboolean expand,
 196                  gboolean fill,
 197                  guint padding);
 198     if(!(pack = buttons[n].pack))
 199       pack = gtk_box_pack_start;
 200     pack(GTK_BOX(box), buttons[n].widget, FALSE, FALSE, 1);
 201     gtk_widget_set_tooltip_text(buttons[n].widget, buttons[n].tip);
 202   }
 203   return box;
 204 }
 205
 206 /** @brief Create buttons and pack them into an hbox */
 207 GtkWidget *create_buttons(struct button *buttons,
 208                           size_t nbuttons) {
 209   return create_buttons_box(buttons, nbuttons,
 210                             gtk_hbox_new(FALSE, 1));
 211 }
 212
 213
 214
 215 /*
 216 Local Variables:
 217 c-basic-offset:2
 218 comment-column:40
 219 fill-column:79
 220 indent-tabs-mode:nil
 221 End:
 222 */