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 "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
  30 using std::endl;
  31 using std::cout;
  32
  33 namespace lyx {
  34 namespace frontend {
  35
  36
  37 PanelStack::PanelStack(QWidget * parent)
  38         : QWidget(parent)
  39 {
  40         list_ = new QTreeWidget(this);
  41         stack_ = new QStackedWidget(this);
  42
  43         list_->setColumnCount(1);
  44         list_->setRootIsDecorated(false);
  45         // Hide the pointless list header
  46         list_->header()->hide();
  47 //      QStringList HeaderLabels;
  48 //      HeaderLabels << QString("Category");
  49 //      list_->setHeaderLabels(HeaderLabels);
  50
  51         connect(list_, SIGNAL(currentItemChanged (QTreeWidgetItem*, QTreeWidgetItem*)),
  52                 this, SLOT(switchPanel(QTreeWidgetItem *, QTreeWidgetItem*)));
  53
  54         QHBoxLayout * layout = new QHBoxLayout(this);
  55         layout->addWidget(list_, 0);
  56         layout->addWidget(stack_, 1);
  57 }
  58
  59
  60 void PanelStack::addCategory(docstring const & n, docstring const & parent)
  61 {
  62         QTreeWidgetItem * item = 0;
  63         QString const name = toqstr(n);
  64
  65         LYXERR(Debug::GUI) << "addCategory n= " << to_utf8(n) << "   parent= " << endl;
  66
  67         int depth = 1;
  68
  69         if (parent.empty()) {
  70                 item = new QTreeWidgetItem(list_);
  71                 item->setText(0, name);
  72         }
  73         else {
  74                 PanelMap::iterator it = panel_map_.find(parent);
  75                 //BOOST_ASSERT(it != panel_map_.end());
  76                 if (it == panel_map_.end()) {
  77                         addCategory(parent);
  78                         it = panel_map_.find(parent);
  79                 }
  80                 BOOST_ASSERT(it != panel_map_.end());
  81
  82                 item = new QTreeWidgetItem(it->second);
  83                 item->setText(0, name);
  84                 depth = 2;
  85         }
  86
  87         panel_map_[n] = item;
  88
  89         QFontMetrics fm(list_->font());
  90         // calculate the real size the current item needs in the listview
  91         int itemsize = fm.width(name) + 10
  92                 + list_->indentation() * depth;
  93         // adjust the listview width to the max. itemsize
  94         if (itemsize > list_->minimumWidth())
  95                 list_->setMinimumWidth(itemsize);
  96 }
  97
  98
  99 void PanelStack::addPanel(QWidget * panel, docstring const & name, docstring const & parent)
 100 {
 101         addCategory(name, parent);
 102         QTreeWidgetItem * item = panel_map_.find(name)->second;
 103
 104         widget_map_[item] = panel;
 105         stack_->addWidget(panel);
 106         stack_->setMinimumSize(panel->minimumSize());
 107 }
 108
 109
 110 void PanelStack::setCurrentPanel(docstring const & name)
 111 {
 112         PanelMap::const_iterator cit = panel_map_.find(name);
 113         BOOST_ASSERT(cit != panel_map_.end());
 114
 115         // force on first set
 116         if (list_->currentItem() ==  cit->second)
 117                 switchPanel(cit->second);
 118
 119         list_->setCurrentItem(cit->second);
 120 }
 121
 122
 123 void PanelStack::switchPanel(QTreeWidgetItem * item,
 124                              QTreeWidgetItem * /*previous*/)
 125 {
 126         WidgetMap::const_iterator cit = widget_map_.find(item);
 127         if (cit == widget_map_.end())
 128                 return;
 129
 130         stack_->setCurrentWidget(cit->second);
 131 }
 132
 133
 134 QSize PanelStack::sizeHint() const
 135 {
 136         return QSize(list_->width() + stack_->width(),
 137                 qMax(list_->height(), stack_->height()));
 138 }
 139
 140 } // namespace frontend
 141 } // namespace lyx
 142
 143 #include "PanelStack_moc.cpp"