src/frontends/xforms/XFormsView.C

   1 /**
   2  * \file XFormsView.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author unknown
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "XFormsView.h"
  14
  15 #include "XFormsMenubar.h"
  16 #include "XMiniBuffer.h"
  17
  18 #include "BufferView.h"
  19 #include "debug.h"
  20 #include "lyxfunc.h"
  21 #include "MenuBackend.h"
  22
  23 #include "frontends/Dialogs.h"
  24 #include "frontends/Toolbars.h"
  25
  26 #include "support/filetools.h"        // OnlyFilename()
  27
  28 #include <boost/bind.hpp>
  29
  30 using boost::shared_ptr;
  31
  32 using std::abs;
  33 using std::endl;
  34 using std::string;
  35
  36 //extern void AutoSave(BufferView *);
  37 extern void QuitLyX();
  38
  39 namespace lyx {
  40
  41 using support::LibFileSearch;
  42
  43 namespace frontend {
  44
  45 extern "C" {
  46
  47 static
  48 int C_XFormsView_atCloseMainFormCB(FL_FORM * form, void * p)
  49 {
  50         return XFormsView::atCloseMainFormCB(form, p);
  51 }
  52
  53 }
  54
  55
  56 void print_metrics(std::ostream & os, std::string const & name, Box const & box)
  57 {
  58         os << name << " metrics:"
  59            << "\tx = " << box.xorigin()
  60            << "\ty = " << box.yorigin()
  61            << "\tw = " << box.width()
  62            << "\th = " << box.height() << '\n';
  63 }
  64
  65
  66 XFormsView::XFormsView(int width, int height)
  67         : LyXView(),
  68           window_(Box(width, height)),
  69           icon_pixmap_(0), icon_mask_(0)
  70 {
  71         int const air = 2;
  72
  73         // Logical layout of the boxes making up the LyX window.
  74         shared_ptr<Box> top = window_.children().push_back(Box(0,0));
  75         shared_ptr<Box> middle = window_.children().push_back(Box(0,0));
  76         middle->set(Box::Horizontal);
  77         shared_ptr<Box> bottom = window_.children().push_back(Box(0,0));
  78
  79         shared_ptr<Box> left = middle->children().push_back(Box(air,0));
  80         shared_ptr<Box> center = middle->children().push_back(Box(0,0));
  81         center->set(Box::Expand);
  82         shared_ptr<Box> right = middle->children().push_back(Box(air,0));
  83
  84         // Define accessors to the various boxes.
  85         box_map_[Top]    = top;
  86         box_map_[Bottom] = bottom;
  87         box_map_[Left]   = left;
  88         box_map_[Center] = center;
  89         box_map_[Right]  = right;
  90
  91         // Define the XForms components making up the window.
  92         // Each uses the layout engine defined above to control its
  93         // dimensions.
  94         form_ = fl_bgn_form(FL_NO_BOX, width, height);
  95         form_->u_vdata = this;
  96         fl_set_form_atclose(form_, C_XFormsView_atCloseMainFormCB, 0);
  97
  98         FL_OBJECT * obj = fl_add_box(FL_FLAT_BOX, 0, 0, width, height, "");
  99         fl_set_object_color(obj, FL_MCOL, FL_MCOL);
 100
 101         menubar_.reset(new XFormsMenubar(this, menubackend));
 102         getToolbars().init();
 103         bufferview_.reset(new BufferView(this, width, height));
 104         minibuffer_.reset(new XMiniBuffer(*this, *controlcommand_));
 105
 106         //  Assign an icon to the main form.
 107         string const iconname = LibFileSearch("images", "lyx", "xpm");
 108         if (!iconname.empty()) {
 109                 unsigned int w, h;
 110                 icon_pixmap_ = fl_read_pixmapfile(fl_root,
 111                                            iconname.c_str(),
 112                                            &w,
 113                                            &h,
 114                                            &icon_mask_,
 115                                            0,
 116                                            0,
 117                                            0);
 118                 fl_set_form_icon(form_, icon_pixmap_, icon_mask_);
 119         }
 120
 121         fl_end_form();
 122
 123         // Update the layout so that all widgets fit.
 124         window_.show();
 125         updateMetrics(true);
 126
 127         view_state_con =
 128                 view_state_changed.connect(boost::bind(&XFormsView::show_view_state, this));
 129         focus_con =
 130                 focus_command_buffer.connect(boost::bind(&XMiniBuffer::focus, minibuffer_.get()));
 131
 132         // Make sure the buttons are disabled if needed.
 133         updateToolbars();
 134         redraw_con =
 135                 getDialogs().redrawGUI().connect(boost::bind(&XFormsView::redraw, this));
 136 }
 137
 138
 139 XFormsView::~XFormsView()
 140 {
 141         if (icon_pixmap_)
 142                 XFreePixmap(fl_get_display(), icon_pixmap_);
 143
 144         minibuffer_->freeze();
 145         fl_hide_form(form_);
 146         fl_free_form(form_);
 147 }
 148
 149
 150 shared_ptr<Box> XFormsView::getBox(Position pos) const
 151 {
 152         BoxMap::const_iterator it = box_map_.find(pos);
 153         BOOST_ASSERT(it != box_map_.end());
 154         return it->second;
 155 }
 156
 157
 158 /// Redraw the main form.
 159 void XFormsView::redraw()
 160 {
 161         lyxerr[Debug::INFO] << "XFormsView::redraw()" << endl;
 162         fl_redraw_form(getForm());
 163         minibuffer_->redraw();
 164 }
 165
 166
 167 FL_FORM * XFormsView::getForm() const
 168 {
 169         return form_;
 170 }
 171
 172
 173 // Callback for close main form from window manager
 174 int XFormsView::atCloseMainFormCB(FL_FORM *, void *)
 175 {
 176         QuitLyX();
 177         return FL_IGNORE;
 178 }
 179
 180
 181 void XFormsView::show(int x, int y, string const & title)
 182 {
 183         FL_FORM * form = getForm();
 184
 185         fl_set_form_minsize(form, form->w, form->h);
 186
 187         int placement = FL_PLACE_CENTER | FL_FREE_SIZE;
 188
 189         // Did we get a valid geometry position ?
 190         if (x >= 0 && y >= 0) {
 191                 fl_set_form_position(form, x, y);
 192                 placement = FL_PLACE_POSITION;
 193         }
 194
 195         fl_show_form(form, placement, FL_FULLBORDER, title.c_str());
 196
 197         show_view_state();
 198 }
 199
 200
 201 void XFormsView::updateMetrics(bool resize_form)
 202 {
 203         FL_FORM * form = getForm();
 204
 205         // We don't want the window to be downsized.
 206         if (!resize_form)
 207                 window_.setMinimumDimensions(form->w, form->h);
 208
 209         window_.updateMetrics();
 210
 211         fl_freeze_form(form);
 212
 213         if (resize_form)
 214                 fl_set_form_size(form, window_.width(), window_.height());
 215
 216         // Emit a signal so that all daughter widgets are layed-out
 217         // correctly.
 218         metricsUpdated();
 219         fl_unfreeze_form(form);
 220 }
 221
 222
 223 bool XFormsView::hasFocus() const
 224 {
 225         // No real implementation needed for now
 226         return true;
 227 }
 228
 229
 230 void XFormsView::setWindowTitle(string const & title, string const & icon_title)
 231 {
 232         fl_set_form_title(getForm(), title.c_str());
 233         fl_winicontitle(form_->window, icon_title.c_str());
 234 }
 235
 236
 237 void XFormsView::message(string const & str)
 238 {
 239         minibuffer_->message(str);
 240 }
 241
 242
 243 void XFormsView::clearMessage()
 244 {
 245         message(getLyXFunc().viewStatusMessage());
 246 }
 247
 248
 249 void XFormsView::show_view_state()
 250 {
 251         message(getLyXFunc().viewStatusMessage());
 252 }
 253
 254
 255 void XFormsView::busy(bool yes) const
 256 {
 257         if (yes) {
 258                 view()->hideCursor();
 259
 260                 static Cursor cursor;
 261                 static bool cursor_undefined = true;
 262
 263                 if (cursor_undefined) {
 264                         cursor = XCreateFontCursor(fl_get_display(), XC_watch);
 265                         XFlush(fl_get_display());
 266                         cursor_undefined = false;
 267                 }
 268
 269                 /// set the cursor to the watch for all forms and the canvas
 270                 XDefineCursor(fl_get_display(), getForm()->window, cursor);
 271
 272                 XFlush(fl_get_display());
 273
 274                 /// we only need to deactivate to prevent resetting the cursor
 275                 /// to I-beam over the workarea
 276                 fl_deactivate_all_forms();
 277         } else {
 278                 /// reset the cursor from the watch for all forms and the canvas
 279
 280                 XUndefineCursor(fl_get_display(), getForm()->window);
 281
 282                 XFlush(fl_get_display());
 283                 fl_activate_all_forms();
 284         }
 285 }
 286
 287 } // namespace frontend
 288 } // namespace lyx