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 mouseReleaseEvent(QMouseEvent * e) {
  39                 if (e->x() < 0 || e->y() < 0
  40                         || e->x() > width() || e->y() > height()) {
  41                         hide();
  42                 } else {
  43                         emit selected(currentText());
  44                 }
  45         }
  46
  47         void keyPressEvent(QKeyEvent * e) {
  48                 if (e->key() == Key_Escape) {
  49                         hide();
  50                         return;
  51                 }
  52                 QListBox::keyPressEvent(e);
  53         }
  54 };
  55
  56 }
  57
  58 QCommandBuffer::QCommandBuffer(QtView * view, ControlCommandBuffer & control)
  59         : QToolBar(view), view_(view), controller_(control)
  60 {
  61         setHorizontalStretchable(true);
  62
  63         QPixmap qp(LibFileSearch("images", "unknown", "xpm").c_str());
  64
  65         QToolButton * upb = new QToolButton(qp, _("Up"), "", this, SLOT(up()), this);
  66         upb->show();
  67
  68         QToolButton * downb = new QToolButton(qp, _("Down"), "", this, SLOT(down()), this);
  69         downb->show();
  70
  71         edit_ = new QCommandEdit(this);
  72         edit_->setMinimumSize(edit_->sizeHint());
  73         edit_->show();
  74         setStretchableWidget(edit_);
  75
  76         show();
  77
  78         connect(edit_, SIGNAL(escapePressed()), this, SLOT(cancel()));
  79         connect(edit_, SIGNAL(returnPressed()), this, SLOT(dispatch()));
  80         connect(edit_, SIGNAL(rightPressed()), this, SLOT(complete()));
  81         connect(edit_, SIGNAL(upPressed()), this, SLOT(up()));
  82         connect(edit_, SIGNAL(downPressed()), this, SLOT(down()));
  83 }
  84
  85
  86
  87 void QCommandBuffer::focus_command()
  88 {
  89         edit_->setFocus();
  90 }
  91
  92
  93 void QCommandBuffer::cancel()
  94 {
  95         view_->centralWidget()->setFocus();
  96         edit_->setText("");
  97 }
  98
  99
 100 void QCommandBuffer::dispatch()
 101 {
 102         controller_.dispatch(edit_->text().latin1());
 103         view_->centralWidget()->setFocus();
 104         edit_->setText("");
 105 }
 106
 107
 108 void QCommandBuffer::complete()
 109 {
 110         string const input = edit_->text().latin1();
 111         string new_input;
 112         vector<string> comp = controller_.completions(input, new_input);
 113
 114         if (comp.empty() && new_input == input) {
 115         //      show_info_suffix(_("[no match]"), input);
 116                 return;
 117         }
 118
 119         if (comp.empty()) {
 120                 edit_->setText(new_input.c_str());
 121         //      show_info_suffix(("[only completion]"), new_input + " ");
 122                 return;
 123         }
 124
 125         edit_->setText(new_input.c_str());
 126
 127         QTempListBox * list = new QTempListBox();
 128
 129         // For some reason the scrollview's contents are larger
 130         // than the number of actual items...
 131         vector<string>::const_iterator cit = comp.begin();
 132         vector<string>::const_iterator end = comp.end();
 133         for (; cit != end; ++cit) {
 134                 list->insertItem(cit->c_str());
 135         }
 136
 137         // width() is not big enough by a few pixels. Qt Sucks.
 138         list->setMinimumWidth(list->sizeHint().width() + 10);
 139
 140         list->resize(list->sizeHint());
 141         QPoint pos(edit_->mapToGlobal(QPoint(0, 0)));
 142         int y = pos.y() - list->height();
 143         if (y < 0)
 144                 y = 0;
 145         list->move(pos.x(), y);
 146
 147         connect(list, SIGNAL(selected(const QString &)),
 148                 this, SLOT(complete_selected(const QString &)));
 149
 150         list->show();
 151         list->setFocus();
 152 }
 153
 154
 155 void QCommandBuffer::complete_selected(const QString & str)
 156 {
 157         edit_->setText(str + " ");
 158         QWidget const * widget = static_cast<QWidget const *>(sender());
 159         const_cast<QWidget *>(widget)->hide();
 160 }
 161
 162
 163 void QCommandBuffer::up()
 164 {
 165         string const input = edit_->text().latin1();
 166         string const h(controller_.historyUp());
 167
 168         if (h.empty()) {
 169         //      show_info_suffix(_("[Beginning of history]"), input);
 170         } else {
 171                 edit_->setText(h.c_str());
 172         }
 173 }
 174
 175
 176 void QCommandBuffer::down()
 177 {
 178         string const input = edit_->text().latin1();
 179         string const h(controller_.historyDown());
 180
 181         if (h.empty()) {
 182         //      show_info_suffix(_("[End of history]"), input);
 183         } else {
 184                 edit_->setText(h.c_str());
 185         }
 186 }
 187
 188
 189 #if 0
 190 void XMiniBuffer::show_info_suffix(string const & suffix, string const & input)
 191 {
 192         stored_input_ = input;
 193         info_suffix_shown_ = true;
 194         set_input(input + " " + suffix);
 195         suffix_timer_->start();
 196 }
 197
 198
 199 void XMiniBuffer::suffix_timeout()
 200 {
 201         info_suffix_shown_ = false;
 202         set_input(stored_input_);
 203 }
 204
 205 #endif