src/frontends/qt2/QCommandBuffer.C

   1 /**
   2  * \file QCommandBuffer.C
   3  * Copyright 2002 the LyX Team
   4  * Read the file COPYING
   5  *
   6  * \author John Levon <moz@compsoc.man.ac.uk>
   7  */
   8
   9 #include <config.h>
  10
  11 #include "support/filetools.h"
  12 #include "controllers/ControlCommandBuffer.h"
  13 #include "gettext.h"
  14 #include "debug.h"
  15
  16 #include "QtView.h"
  17 #include "QCommandBuffer.h"
  18 #include "QCommandEdit.h"
  19
  20 #include <qcombobox.h>
  21 #include <qlistbox.h>
  22 #include <qtoolbutton.h>
  23 #include <qpixmap.h>
  24
  25 using std::vector;
  26
  27 namespace {
  28
  29 class QTempListBox : public QListBox {
  30 public:
  31         QTempListBox()
  32                 : QListBox(0, 0,
  33                 WType_Modal | WType_Popup | WDestructiveClose) {
  34                 setHScrollBarMode(AlwaysOff);
  35         }
  36
  37 protected:
  38         void keyPressEvent(QKeyEvent * e) {
  39                 if (e->key() == Key_Escape) {
  40                         hide();
  41                         return;
  42                 }
  43                 QListBox::keyPressEvent(e);
  44         }
  45 };
  46
  47 }
  48
  49 QCommandBuffer::QCommandBuffer(QtView * view, ControlCommandBuffer & control)
  50         : QToolBar(view), view_(view), controller_(control)
  51 {
  52         setHorizontalStretchable(true);
  53
  54         QPixmap qp(LibFileSearch("images", "unknown", "xpm").c_str());
  55
  56         QToolButton * upb = new QToolButton(qp, _("Up"), "", this, SLOT(up()), this);
  57         upb->show();
  58
  59         QToolButton * downb = new QToolButton(qp, _("Down"), "", this, SLOT(down()), this);
  60         downb->show();
  61
  62         edit_ = new QCommandEdit(this);
  63         edit_->setMinimumSize(edit_->sizeHint());
  64         edit_->show();
  65         setStretchableWidget(edit_);
  66
  67         show();
  68
  69         connect(edit_, SIGNAL(escapePressed()), this, SLOT(cancel()));
  70         connect(edit_, SIGNAL(returnPressed()), this, SLOT(dispatch()));
  71         connect(edit_, SIGNAL(rightPressed()), this, SLOT(complete()));
  72         connect(edit_, SIGNAL(upPressed()), this, SLOT(up()));
  73         connect(edit_, SIGNAL(downPressed()), this, SLOT(down()));
  74 }
  75
  76
  77
  78 void QCommandBuffer::focus_command()
  79 {
  80         edit_->setFocus();
  81 }
  82
  83
  84 void QCommandBuffer::cancel()
  85 {
  86         view_->centralWidget()->setFocus();
  87         edit_->setText("");
  88 }
  89
  90
  91 void QCommandBuffer::dispatch()
  92 {
  93         controller_.dispatch(edit_->text().latin1());
  94         view_->centralWidget()->setFocus();
  95         edit_->setText("");
  96 }
  97
  98
  99 void QCommandBuffer::complete()
 100 {
 101         string const input = edit_->text().latin1();
 102         string new_input;
 103         vector<string> comp = controller_.completions(input, new_input);
 104
 105         if (comp.empty() && new_input == input) {
 106         //      show_info_suffix(_("[no match]"), input);
 107                 return;
 108         }
 109
 110         if (comp.empty()) {
 111                 edit_->setText(new_input.c_str());
 112         //      show_info_suffix(("[only completion]"), new_input + " ");
 113                 return;
 114         }
 115
 116         edit_->setText(new_input.c_str());
 117
 118         QTempListBox * list = new QTempListBox();
 119         vector<string>::const_iterator cit = comp.begin();
 120         vector<string>::const_iterator end = comp.end();
 121         for (; cit != end; ++cit) {
 122                 list->insertItem(cit->c_str());
 123         }
 124
 125         // For some reason we get lots of empty entries and the
 126         // scrollbar is wrong as a result. No fix. Qt Sucks.
 127
 128         // width() is not big enough by a few pixels. Qt Sucks.
 129         list->setMinimumWidth(list->sizeHint().width() + 10);
 130
 131         list->resize(list->sizeHint());
 132         QPoint pos(edit_->mapToGlobal(QPoint(0, 0)));
 133         int y = pos.y() - list->height();
 134         if (y < 0)
 135                 y = 0;
 136         list->move(pos.x(), y);
 137
 138         connect(list, SIGNAL(selected(const QString &)),
 139                 this, SLOT(complete_selected(const QString &)));
 140
 141         // Note we *cannot* make a single click popup, because
 142         // events get generated for outside the popup on Qt 2.3.1
 143         // and even gives valid QListBoxItem *'s. We have no way
 144         // to work past this. Qt Sucks.
 145         //connect(list, SIGNAL(clicked(QListBoxItem *)),
 146         //      this, SLOT(complete_selected2(QListBoxItem *)));
 147
 148         list->show();
 149         list->setFocus();
 150 }
 151
 152
 153 void QCommandBuffer::complete_selected(const QString & str)
 154 {
 155         edit_->setText(str + " ");
 156         QWidget const * widget = static_cast<QWidget const *>(sender());
 157         const_cast<QWidget *>(widget)->hide();
 158 }
 159
 160
 161 void QCommandBuffer::up()
 162 {
 163         string const input = edit_->text().latin1();
 164         string const h(controller_.historyUp());
 165
 166         if (h.empty()) {
 167         //      show_info_suffix(_("[Beginning of history]"), input);
 168         } else {
 169                 edit_->setText(h.c_str());
 170         }
 171 }
 172
 173
 174 void QCommandBuffer::down()
 175 {
 176         string const input = edit_->text().latin1();
 177         string const h(controller_.historyDown());
 178
 179         if (h.empty()) {
 180         //      show_info_suffix(_("[End of history]"), input);
 181         } else {
 182                 edit_->setText(h.c_str());
 183         }
 184 }
 185
 186
 187 #if 0
 188 void XMiniBuffer::show_info_suffix(string const & suffix, string const & input)
 189 {
 190         stored_input_ = input;
 191         info_suffix_shown_ = true;
 192         set_input(input + " " + suffix);
 193         suffix_timer_->start();
 194 }
 195
 196
 197 void XMiniBuffer::suffix_timeout()
 198 {
 199         info_suffix_shown_ = false;
 200         set_input(stored_input_);
 201 }
 202
 203 #endif