src/frontends/qt2/QCommandBuffer.C

   1 /**
   2  * \file QCommandBuffer.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
  14 #include "support/filetools.h"
  15 #include "controllers/ControlCommandBuffer.h"
  16 #include "qt_helpers.h"
  17 #include "debug.h"
  18
  19 #include "QtView.h"
  20 #include "QCommandBuffer.h"
  21 #include "QCommandEdit.h"
  22
  23 #include <qcombobox.h>
  24 #include <qlistbox.h>
  25 #include <qtoolbutton.h>
  26 #include <qpixmap.h>
  27
  28 #include "LString.h"
  29
  30 using std::vector;
  31
  32 namespace {
  33
  34 class QTempListBox : public QListBox {
  35 public:
  36         QTempListBox()
  37                 : QListBox(0, 0,
  38                            WType_Modal | WType_Popup | WDestructiveClose) {
  39                 setHScrollBarMode(AlwaysOff);
  40         }
  41 protected:
  42         void mouseReleaseEvent(QMouseEvent * e) {
  43                 if (e->x() < 0 || e->y() < 0
  44                     || e->x() > width() || e->y() > height()) {
  45                         hide();
  46                 } else {
  47                         emit selected(currentText());
  48                 }
  49         }
  50
  51         void keyPressEvent(QKeyEvent * e) {
  52                 if (e->key() == Key_Escape) {
  53                         hide();
  54                         return;
  55                 }
  56                 QListBox::keyPressEvent(e);
  57         }
  58 };
  59
  60 } // end of anon
  61
  62
  63 QCommandBuffer::QCommandBuffer(QtView * view, ControlCommandBuffer & control)
  64         : QToolBar(view), view_(view), controller_(control)
  65 {
  66         setHorizontalStretchable(true);
  67
  68         QPixmap qpup(toqstr(LibFileSearch("images", "up", "xpm")));
  69         QPixmap qpdown(toqstr(LibFileSearch("images", "down", "xpm")));
  70
  71         (new QToolButton(qpup, qt_("Previous command"), "", this, SLOT(up()), this))->show();
  72         (new QToolButton(qpdown, qt_("Next command"), "", this, SLOT(down()), this))->show();
  73
  74         edit_ = new QCommandEdit(this);
  75         edit_->setMinimumSize(edit_->sizeHint());
  76         edit_->show();
  77         setStretchableWidget(edit_);
  78
  79         show();
  80
  81         connect(edit_, SIGNAL(escapePressed()), this, SLOT(cancel()));
  82         connect(edit_, SIGNAL(returnPressed()), this, SLOT(dispatch()));
  83         connect(edit_, SIGNAL(rightPressed()), this, SLOT(complete()));
  84         connect(edit_, SIGNAL(upPressed()), this, SLOT(up()));
  85         connect(edit_, SIGNAL(downPressed()), this, SLOT(down()));
  86 }
  87
  88
  89
  90 void QCommandBuffer::focus_command()
  91 {
  92         edit_->setFocus();
  93 }
  94
  95
  96 void QCommandBuffer::cancel()
  97 {
  98         view_->centralWidget()->setFocus();
  99         edit_->setText("");
 100 }
 101
 102
 103 void QCommandBuffer::dispatch()
 104 {
 105         controller_.dispatch(fromqstr(edit_->text()));
 106         view_->centralWidget()->setFocus();
 107         edit_->setText("");
 108 }
 109
 110
 111 void QCommandBuffer::complete()
 112 {
 113         string const input = fromqstr(edit_->text());
 114         string new_input;
 115         vector<string> comp = controller_.completions(input, new_input);
 116
 117         if (comp.empty() && new_input == input) {
 118         //      show_info_suffix(qt_("[no match]"), input);
 119                 return;
 120         }
 121
 122         if (comp.empty()) {
 123                 edit_->setText(toqstr(new_input));
 124         //      show_info_suffix(("[only completion]"), new_input + ' ');
 125                 return;
 126         }
 127
 128         edit_->setText(toqstr(new_input));
 129
 130         QTempListBox * list = new QTempListBox;
 131
 132         // For some reason the scrollview's contents are larger
 133         // than the number of actual items...
 134         vector<string>::const_iterator cit = comp.begin();
 135         vector<string>::const_iterator end = comp.end();
 136         for (; cit != end; ++cit) {
 137                 list->insertItem(toqstr(*cit));
 138         }
 139
 140         // width() is not big enough by a few pixels. Qt Sucks.
 141         list->setMinimumWidth(list->sizeHint().width() + 10);
 142
 143         list->resize(list->sizeHint());
 144         QPoint pos(edit_->mapToGlobal(QPoint(0, 0)));
 145
 146         int y = std::max(0, pos.y() - list->height());
 147
 148         list->move(pos.x(), y);
 149
 150         connect(list, SIGNAL(selected(const QString &)),
 151                 this, SLOT(complete_selected(const QString &)));
 152
 153         list->show();
 154         list->setFocus();
 155 }
 156
 157
 158 void QCommandBuffer::complete_selected(QString const & str)
 159 {
 160         edit_->setText(str + ' ');
 161         QWidget const * widget = static_cast<QWidget const *>(sender());
 162         const_cast<QWidget *>(widget)->hide();
 163 }
 164
 165
 166 void QCommandBuffer::up()
 167 {
 168         string const input(fromqstr(edit_->text()));
 169         string const h(controller_.historyUp());
 170
 171         if (h.empty()) {
 172         //      show_info_suffix(qt_("[Beginning of history]"), input);
 173         } else {
 174                 edit_->setText(toqstr(h));
 175         }
 176 }
 177
 178
 179 void QCommandBuffer::down()
 180 {
 181         string const input(fromqstr(edit_->text()));
 182         string const h(controller_.historyDown());
 183
 184         if (h.empty()) {
 185         //      show_info_suffix(qt_("[End of history]"), input);
 186         } else {
 187                 edit_->setText(toqstr(h));
 188         }
 189 }
 190
 191
 192 #if 0
 193 void XMiniBuffer::show_info_suffix(string const & suffix, string const & input)
 194 {
 195         stored_input_ = input;
 196         info_suffix_shown_ = true;
 197         set_input(input + ' ' + suffix);
 198         suffix_timer_->start();
 199 }
 200
 201
 202 void XMiniBuffer::suffix_timeout()
 203 {
 204         info_suffix_shown_ = false;
 205         set_input(stored_input_);
 206 }
 207
 208 #endif