src/frontends/qt4/panelstack.C

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