src/ui/widget/dock.cpp

   1 /**
   2  * \brief A desktop dock pane to dock dialogs.
   3  *
   4  * Author:
   5  *   Gustav Broberg <broberg@kth.se>
   6  *
   7  * Copyright (C) 2007 Authors
   8  *
   9  * Released under GNU GPL.  Read the file 'COPYING' for more information.
  10  */
  11
  12 #include "inkscape.h"
  13 #include "prefs-utils.h"
  14 #include "desktop.h"
  15
  16 #include "dock.h"
  17
  18 #include <gtkmm/adjustment.h>
  19
  20 namespace Inkscape {
  21 namespace UI {
  22 namespace Widget {
  23
  24 namespace {
  25
  26 void hideCallback(GtkObject *object, gpointer dock_ptr)
  27 {
  28     g_return_if_fail( dock_ptr != NULL );
  29
  30     Dock *dock = (Dock *)dock_ptr;
  31     dock->hide();
  32 }
  33
  34 void unhideCallback(GtkObject *object, gpointer dock_ptr)
  35 {
  36     g_return_if_fail( dock_ptr != NULL );
  37
  38     Dock *dock = (Dock *)dock_ptr;
  39     dock->show();
  40 }
  41
  42 }
  43
  44 const int Dock::_default_empty_width = 0;
  45 const int Dock::_default_dock_bar_width = 36;
  46
  47
  48 Dock::Dock(Gtk::Orientation orientation)
  49     : _gdl_dock (GDL_DOCK (gdl_dock_new())),
  50       _gdl_dock_bar (GDL_DOCK_BAR (gdl_dock_bar_new(GDL_DOCK(_gdl_dock)))),
  51       _scrolled_window (Gtk::manage(new Gtk::ScrolledWindow))
  52 {
  53     gdl_dock_bar_set_orientation(_gdl_dock_bar, static_cast<GtkOrientation>(orientation));
  54
  55     switch (orientation) {
  56         case Gtk::ORIENTATION_VERTICAL:
  57             _dock_box = Gtk::manage(new Gtk::HBox());
  58             _paned = Gtk::manage(new Gtk::VPaned());
  59             break;
  60         case Gtk::ORIENTATION_HORIZONTAL:
  61             _dock_box = Gtk::manage(new Gtk::VBox());
  62             _paned = Gtk::manage(new Gtk::HPaned());
  63     }
  64
  65     _scrolled_window->add(*_dock_box);
  66     _scrolled_window->set_policy(Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
  67
  68     _paned->pack1(*Glib::wrap(GTK_WIDGET(_gdl_dock)), false, false);
  69     _paned->pack2(_filler, true, false);
  70
  71     _dock_box->pack_start(*_paned, Gtk::PACK_EXPAND_WIDGET);
  72     _dock_box->pack_end(*Gtk::manage(Glib::wrap(GTK_WIDGET(_gdl_dock_bar))), Gtk::PACK_SHRINK);
  73     _dock_box->get_parent()->set_resize_mode(Gtk::RESIZE_PARENT);
  74
  75     _scrolled_window->set_size_request(0);
  76
  77     GdlSwitcherStyle gdl_switcher_style =
  78         static_cast<GdlSwitcherStyle>(prefs_get_int_attribute_limited("options.dock", "switcherstyle",
  79                                                                       GDL_SWITCHER_STYLE_BOTH, 0, 4));
  80
  81     g_object_set (GDL_DOCK_OBJECT(_gdl_dock)->master,
  82                   "switcher-style", gdl_switcher_style,
  83                   NULL);
  84
  85     GdlDockBarStyle gdl_dock_bar_style =
  86         static_cast<GdlDockBarStyle>(prefs_get_int_attribute_limited("options.dock", "dockbarstyle",
  87                                                                      GDL_DOCK_BAR_BOTH, 0, 3));
  88
  89     gdl_dock_bar_set_style(_gdl_dock_bar, gdl_dock_bar_style);
  90
  91     g_signal_connect(G_OBJECT(INKSCAPE), "dialogs_hide", G_CALLBACK(hideCallback), (void *)this);
  92     g_signal_connect(G_OBJECT(INKSCAPE), "dialogs_unhide", G_CALLBACK(unhideCallback), (void *)this);
  93
  94     signal_layout_changed().connect(sigc::mem_fun(*this, &Inkscape::UI::Widget::Dock::_onLayoutChanged));
  95 }
  96
  97 Dock::~Dock()
  98 {
  99     g_free(_gdl_dock);
 100     g_free(_gdl_dock_bar);
 101 }
 102
 103 void
 104 Dock::addItem(DockItem& item, DockItem::Placement placement)
 105 {
 106     _dock_items.push_back(&item);
 107     gdl_dock_add_item(_gdl_dock, GDL_DOCK_ITEM(item.gobj()), (GdlDockPlacement)placement);
 108
 109     // FIXME: This is a hack to prevent the dock from expanding the main window, this can't be done
 110     // initially as the paned doesn't exist.
 111     if (Gtk::Paned *paned = getParentPaned())
 112         paned->set_resize_mode(Gtk::RESIZE_QUEUE);
 113 }
 114
 115 Gtk::Widget&
 116 Dock::getWidget()
 117 {
 118      return *_scrolled_window;
 119 }
 120
 121 Gtk::Paned *
 122 Dock::getParentPaned()
 123 {
 124     g_return_val_if_fail(_dock_box, 0);
 125     Gtk::Container *parent = getWidget().get_parent();
 126     return (parent != 0 ? dynamic_cast<Gtk::Paned *>(parent) : 0);
 127 }
 128
 129
 130 Gtk::Paned *
 131 Dock::getPaned()
 132 {
 133     return _paned;
 134 }
 135
 136 GtkWidget *
 137 Dock::getGdlWidget()
 138 {
 139     return GTK_WIDGET(_gdl_dock);
 140 }
 141
 142 bool
 143 Dock::isEmpty() const
 144 {
 145     std::list<const DockItem *>::const_iterator
 146         i = _dock_items.begin(),
 147         e = _dock_items.end();
 148
 149     for (; i != e; ++i)
 150         if ((*i)->getState() == DockItem::DOCKED_STATE)
 151             return false;
 152
 153     return true;
 154 }
 155
 156 bool
 157 Dock::hasIconifiedItems() const
 158 {
 159     std::list<const DockItem *>::const_iterator
 160         i = _dock_items.begin(),
 161         e = _dock_items.end();
 162
 163     for (; i != e; ++i)
 164         if ((*i)->isIconified())
 165             return true;
 166
 167     return false;
 168 }
 169
 170 void
 171 Dock::hide()
 172 {
 173     getWidget().hide();
 174 }
 175
 176 void
 177 Dock::show()
 178 {
 179     getWidget().show();
 180 }
 181
 182 void
 183 Dock::toggleDockable(int width, int height)
 184 {
 185     static int prev_horizontal_position, prev_vertical_position;
 186
 187     Gtk::Paned *parent_paned = getParentPaned();
 188
 189     if (width > 0 && height > 0) {
 190         prev_horizontal_position = parent_paned->get_position();
 191         prev_vertical_position = _paned->get_position();
 192
 193         if (getWidget().get_width() < width)
 194             parent_paned->set_position(parent_paned->get_width() - width);
 195
 196         if (_paned->get_position() < height)
 197             _paned->set_position(height);
 198
 199     } else {
 200         parent_paned->set_position(prev_horizontal_position);
 201         _paned->set_position(prev_vertical_position);
 202     }
 203
 204 }
 205
 206 void
 207 Dock::scrollToItem(DockItem& item)
 208 {
 209     int item_x, item_y;
 210     item.getWidget().translate_coordinates(getWidget(), 0, 0, item_x, item_y);
 211
 212     int dock_height = getWidget().get_height(), item_height = item.getWidget().get_height();
 213     double vadjustment = _scrolled_window->get_vadjustment()->get_value();
 214
 215     if (item_y < 0)
 216         _scrolled_window->get_vadjustment()->set_value(vadjustment + item_y);
 217     else if (item_y + item_height > dock_height)
 218         _scrolled_window->get_vadjustment()->set_value(
 219             vadjustment + ((item_y + item_height) - dock_height));
 220 }
 221
 222 Glib::SignalProxy0<void>
 223 Dock::signal_layout_changed()
 224 {
 225     return Glib::SignalProxy0<void>(Glib::wrap(GTK_WIDGET(_gdl_dock)),
 226                                     &_signal_layout_changed_proxy);
 227 }
 228
 229 void
 230 Dock::_onLayoutChanged()
 231 {
 232     if (isEmpty()) {
 233
 234         if (hasIconifiedItems())
 235             _scrolled_window->set_size_request(_default_dock_bar_width);
 236         else
 237             _scrolled_window->set_size_request(_default_empty_width);
 238
 239         getParentPaned()->set_position(INT_MAX);
 240     } else {
 241         _scrolled_window->set_size_request(-1);
 242     }
 243 }
 244
 245
 246 const Glib::SignalProxyInfo
 247 Dock::_signal_layout_changed_proxy =
 248 {
 249     "layout-changed",
 250     (GCallback) &Glib::SignalProxyNormal::slot0_void_callback,
 251     (GCallback) &Glib::SignalProxyNormal::slot0_void_callback
 252 };
 253
 254
 255 } // namespace Widget
 256 } // namespace UI
 257 } // namespace Inkscape
 258
 259
 260 /*
 261   Local Variables:
 262   mode:c++
 263   c-file-style:"stroustrup"
 264   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 265   indent-tabs-mode:nil
 266   fill-column:99
 267   End:
 268 */
 269 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99