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 "lyx_main.h"
  21 #include "session.h"
  22 #include "lyxfunc.h"
  23 #include "MenuBackend.h"
  24 #include "funcrequest.h"
  25
  26 #include "frontends/Dialogs.h"
  27 #include "frontends/Toolbars.h"
  28
  29 #include "support/filetools.h"        // OnlyFilename()
  30 #include "support/convert.h"
  31
  32 #include <boost/bind.hpp>
  33
  34 using boost::shared_ptr;
  35
  36 using std::abs;
  37 using std::endl;
  38 using std::string;
  39
  40 //extern void AutoSave(BufferView *);
  41 extern void QuitLyX(bool);
  42
  43 namespace lyx {
  44
  45 using support::libFileSearch;
  46
  47 namespace frontend {
  48
  49 extern "C" {
  50
  51 static
  52 int C_XFormsView_atCloseMainFormCB(FL_FORM * /*form*/, void * arg)
  53 {
  54         // For some reason u_vdata does not contain the pointer
  55         // to the XFormsView that we need. We get it through arg instead.
  56         //XFormsView * view = static_cast<XFormsView*>(form->u_vdata);
  57         XFormsView * view = static_cast<XFormsView*>(arg);
  58         return view->atCloseMainFormCB();
  59 }
  60
  61 }
  62
  63
  64 void print_metrics(std::ostream & os, std::string const & name, Box const & box)
  65 {
  66         os << name << " metrics:"
  67            << "\tx = " << box.xorigin()
  68            << "\ty = " << box.yorigin()
  69            << "\tw = " << box.width()
  70            << "\th = " << box.height() << '\n';
  71 }
  72
  73
  74 XFormsView::XFormsView(int width, int height)
  75         : LyXView(),
  76           window_(Box(width, height)),
  77           icon_pixmap_(0), icon_mask_(0)
  78 {
  79         int const air = 2;
  80
  81         // Logical layout of the boxes making up the LyX window.
  82         shared_ptr<Box> top = window_.children().push_back(Box(0,0));
  83         shared_ptr<Box> middle = window_.children().push_back(Box(0,0));
  84         middle->set(Box::Horizontal);
  85         shared_ptr<Box> bottom = window_.children().push_back(Box(0,0));
  86
  87         shared_ptr<Box> left = middle->children().push_back(Box(air,0));
  88         shared_ptr<Box> center = middle->children().push_back(Box(0,0));
  89         center->set(Box::Expand);
  90         shared_ptr<Box> right = middle->children().push_back(Box(air,0));
  91
  92         // Define accessors to the various boxes.
  93         box_map_[Top]    = top;
  94         box_map_[Bottom] = bottom;
  95         box_map_[Left]   = left;
  96         box_map_[Center] = center;
  97         box_map_[Right]  = right;
  98
  99         // Define the XForms components making up the window.
 100         // Each uses the layout engine defined above to control its
 101         // dimensions.
 102         form_ = fl_bgn_form(FL_NO_BOX, width, height);
 103         form_->u_vdata = this;
 104         fl_set_form_atclose(form_, C_XFormsView_atCloseMainFormCB, this);
 105
 106         FL_OBJECT * obj = fl_add_box(FL_FLAT_BOX, 0, 0, width, height, "");
 107         fl_set_object_color(obj, FL_MCOL, FL_MCOL);
 108
 109         menubar_.reset(new XFormsMenubar(this, menubackend));
 110         getToolbars().init();
 111         bufferview_.reset(new BufferView(this, width, height));
 112         minibuffer_.reset(new XMiniBuffer(*this, *controlcommand_));
 113
 114         //  Assign an icon to the main form.
 115         string const iconname = libFileSearch("images", "lyx", "xpm");
 116         if (!iconname.empty()) {
 117                 unsigned int w, h;
 118                 icon_pixmap_ = fl_read_pixmapfile(fl_root,
 119                                            iconname.c_str(),
 120                                            &w,
 121                                            &h,
 122                                            &icon_mask_,
 123                                            0,
 124                                            0,
 125                                            0);
 126                 fl_set_form_icon(form_, icon_pixmap_, icon_mask_);
 127         }
 128
 129         fl_end_form();
 130
 131         // Update the layout so that all widgets fit.
 132         window_.show();
 133         updateMetrics(true);
 134
 135         view_state_con =
 136                 view_state_changed.connect(boost::bind(&XFormsView::show_view_state, this));
 137         focus_con =
 138                 focus_command_buffer.connect(boost::bind(&XMiniBuffer::focus, minibuffer_.get()));
 139
 140         // Make sure the buttons are disabled if needed.
 141         updateToolbars();
 142         redraw_con =
 143                 getDialogs().redrawGUI().connect(boost::bind(&XFormsView::redraw, this));
 144 }
 145
 146
 147 XFormsView::~XFormsView()
 148 {
 149         if (icon_pixmap_)
 150                 XFreePixmap(fl_get_display(), icon_pixmap_);
 151
 152         minibuffer_->freeze();
 153         fl_hide_form(form_);
 154         fl_free_form(form_);
 155 }
 156
 157
 158 shared_ptr<Box> XFormsView::getBox(Position pos) const
 159 {
 160         BoxMap::const_iterator it = box_map_.find(pos);
 161         BOOST_ASSERT(it != box_map_.end());
 162         return it->second;
 163 }
 164
 165
 166 /// Redraw the main form.
 167 void XFormsView::redraw()
 168 {
 169         lyxerr[Debug::INFO] << "XFormsView::redraw()" << endl;
 170         fl_redraw_form(getForm());
 171         minibuffer_->redraw();
 172 }
 173
 174
 175 FL_FORM * XFormsView::getForm() const
 176 {
 177         return form_;
 178 }
 179
 180
 181 // Callback for close main form from window manager
 182 int XFormsView::atCloseMainFormCB()
 183 {
 184         // save windows size
 185         LyX::ref().session().saveSessionInfo("WindowWidth", convert<string>(form_->w));
 186         LyX::ref().session().saveSessionInfo("WindowHeight", convert<string>(form_->h));
 187         // trigger LFUN_QUIT instead of quit directly
 188         // since LFUN_QUIT may have more cleanup stuff
 189         //
 190         getLyXFunc().dispatch(FuncRequest(LFUN_QUIT));
 191         return FL_IGNORE;
 192 }
 193
 194
 195 void XFormsView::show(int x, int y, string const & title)
 196 {
 197         FL_FORM * form = getForm();
 198
 199         fl_set_form_minsize(form, form->w, form->h);
 200
 201         int placement = FL_PLACE_CENTER | FL_FREE_SIZE;
 202
 203         // Did we get a valid geometry position ?
 204         if (x >= 0 && y >= 0) {
 205                 fl_set_form_position(form, x, y);
 206                 placement = FL_PLACE_POSITION;
 207         }
 208
 209         fl_show_form(form, placement, FL_FULLBORDER, title.c_str());
 210
 211         show_view_state();
 212 }
 213
 214
 215 void XFormsView::updateMetrics(bool resize_form)
 216 {
 217         FL_FORM * form = getForm();
 218
 219         // We don't want the window to be downsized.
 220         if (!resize_form)
 221                 window_.setMinimumDimensions(form->w, form->h);
 222
 223         window_.updateMetrics();
 224
 225         fl_freeze_form(form);
 226
 227         if (resize_form)
 228                 fl_set_form_size(form, window_.width(), window_.height());
 229
 230         // Emit a signal so that all daughter widgets are layed-out
 231         // correctly.
 232         metricsUpdated();
 233         fl_unfreeze_form(form);
 234 }
 235
 236
 237 bool XFormsView::hasFocus() const
 238 {
 239         // No real implementation needed for now
 240         return true;
 241 }
 242
 243
 244 void XFormsView::setWindowTitle(string const & title, string const & icon_title)
 245 {
 246         fl_set_form_title(getForm(), title.c_str());
 247         fl_winicontitle(form_->window, icon_title.c_str());
 248 }
 249
 250
 251 void XFormsView::message(string const & str)
 252 {
 253         minibuffer_->message(str);
 254 }
 255
 256
 257 void XFormsView::clearMessage()
 258 {
 259         message(getLyXFunc().viewStatusMessage());
 260 }
 261
 262
 263 void XFormsView::show_view_state()
 264 {
 265         message(getLyXFunc().viewStatusMessage());
 266 }
 267
 268
 269 void XFormsView::busy(bool yes) const
 270 {
 271         if (yes) {
 272                 view()->hideCursor();
 273
 274                 static Cursor cursor;
 275                 static bool cursor_undefined = true;
 276
 277                 if (cursor_undefined) {
 278                         cursor = XCreateFontCursor(fl_get_display(), XC_watch);
 279                         XFlush(fl_get_display());
 280                         cursor_undefined = false;
 281                 }
 282
 283                 /// set the cursor to the watch for all forms and the canvas
 284                 XDefineCursor(fl_get_display(), getForm()->window, cursor);
 285
 286                 XFlush(fl_get_display());
 287
 288                 /// we only need to deactivate to prevent resetting the cursor
 289                 /// to I-beam over the workarea
 290                 fl_deactivate_all_forms();
 291         } else {
 292                 /// reset the cursor from the watch for all forms and the canvas
 293
 294                 XUndefineCursor(fl_get_display(), getForm()->window);
 295
 296                 XFlush(fl_get_display());
 297                 fl_activate_all_forms();
 298         }
 299 }
 300
 301 } // namespace frontend
 302 } // namespace lyx