src/frontends/qt4/PanelStack.cpp

   1 /**
   2  * \file PanelStack.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author John Levon
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "PanelStack.h"
  14
  15 #include "qt_helpers.h"
  16
  17 #include "support/debug.h"
  18
  19 #include <QFontMetrics>
  20 #include <QStackedWidget>
  21 #include <QTreeWidget>
  22 #include <QHBoxLayout>
  23 #include <QHeaderView>
  24
  25 #include <boost/assert.hpp>
  26
  27 #include <iostream>
  28
  29 using namespace std;
  30
  31 namespace lyx {
  32 namespace frontend {
  33
  34
  35 PanelStack::PanelStack(QWidget * parent)
  36         : QWidget(parent)
  37 {
  38         list_ = new QTreeWidget(this);
  39         stack_ = new QStackedWidget(this);
  40
  41         list_->setColumnCount(1);
  42         list_->setRootIsDecorated(false);
  43         // Hide the pointless list header
  44         list_->header()->hide();
  45 //      QStringList HeaderLabels;
  46 //      HeaderLabels << QString("Category");
  47 //      list_->setHeaderLabels(HeaderLabels);
  48
  49         connect(list_, SIGNAL(currentItemChanged (QTreeWidgetItem*, QTreeWidgetItem*)),
  50                 this, SLOT(switchPanel(QTreeWidgetItem *, QTreeWidgetItem*)));
  51
  52         QHBoxLayout * layout = new QHBoxLayout(this);
  53         layout->addWidget(list_, 0);
  54         layout->addWidget(stack_, 1);
  55 }
  56
  57
  58 void PanelStack::addCategory(docstring const & n, docstring const & parent)
  59 {
  60         QTreeWidgetItem * item = 0;
  61         QString const name = toqstr(n);
  62
  63         LYXERR(Debug::GUI, "addCategory n= " << to_utf8(n) << "   parent= ");
  64
  65         int depth = 1;
  66
  67         if (parent.empty()) {
  68                 item = new QTreeWidgetItem(list_);
  69                 item->setText(0, name);
  70         }
  71         else {
  72                 PanelMap::iterator it = panel_map_.find(parent);
  73                 //BOOST_ASSERT(it != panel_map_.end());
  74                 if (it == panel_map_.end()) {
  75                         addCategory(parent);
  76                         it = panel_map_.find(parent);
  77                 }
  78                 BOOST_ASSERT(it != panel_map_.end());
  79
  80                 item = new QTreeWidgetItem(it->second);
  81                 item->setText(0, name);
  82                 depth = 2;
  83         }
  84
  85         panel_map_[n] = item;
  86
  87         QFontMetrics fm(list_->font());
  88         // calculate the real size the current item needs in the listview
  89         int itemsize = fm.width(name) + 10
  90                 + list_->indentation() * depth;
  91         // adjust the listview width to the max. itemsize
  92         if (itemsize > list_->minimumWidth())
  93                 list_->setMinimumWidth(itemsize);
  94 }
  95
  96
  97 void PanelStack::addPanel(QWidget * panel, docstring const & name, docstring const & parent)
  98 {
  99         addCategory(name, parent);
 100         QTreeWidgetItem * item = panel_map_.find(name)->second;
 101
 102         widget_map_[item] = panel;
 103         stack_->addWidget(panel);
 104         stack_->setMinimumSize(panel->minimumSize());
 105 }
 106
 107
 108 void PanelStack::setCurrentPanel(docstring const & name)
 109 {
 110         PanelMap::const_iterator cit = panel_map_.find(name);
 111         BOOST_ASSERT(cit != panel_map_.end());
 112
 113         // force on first set
 114         if (list_->currentItem() ==  cit->second)
 115                 switchPanel(cit->second);
 116
 117         list_->setCurrentItem(cit->second);
 118 }
 119
 120
 121 void PanelStack::switchPanel(QTreeWidgetItem * item,
 122                              QTreeWidgetItem * /*previous*/)
 123 {
 124         WidgetMap::const_iterator cit = widget_map_.find(item);
 125         if (cit == widget_map_.end())
 126                 return;
 127
 128         stack_->setCurrentWidget(cit->second);
 129 }
 130
 131
 132 QSize PanelStack::sizeHint() const
 133 {
 134         return QSize(list_->width() + stack_->width(),
 135                 qMax(list_->height(), stack_->height()));
 136 }
 137
 138 } // namespace frontend
 139 } // namespace lyx
 140
 141 #include "PanelStack_moc.cpp"