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 #ifdef __GNUG__
  14 #pragma implementation
  15 #endif
  16
  17 #include "support/filetools.h"
  18 #include "controllers/ControlCommandBuffer.h"
  19 #include "gettext.h"
  20 #include "debug.h"
  21
  22 #include "QtView.h"
  23 #include "QCommandBuffer.h"
  24 #include "QCommandEdit.h"
  25
  26 #include <qcombobox.h>
  27 #include <qlistbox.h>
  28 #include <qtoolbutton.h>
  29 #include <qpixmap.h>
  30
  31 #include "LString.h"
  32
  33 using std::vector;
  34
  35 namespace {
  36
  37 class QTempListBox : public QListBox {
  38 public:
  39         QTempListBox()
  40                 : QListBox(0, 0,
  41                 WType_Modal | WType_Popup | WDestructiveClose) {
  42                 setHScrollBarMode(AlwaysOff);
  43         }
  44
  45 protected:
  46         void mouseReleaseEvent(QMouseEvent * e) {
  47                 if (e->x() < 0 || e->y() < 0
  48                         || e->x() > width() || e->y() > height()) {
  49                         hide();
  50                 } else {
  51                         emit selected(currentText());
  52                 }
  53         }
  54
  55         void keyPressEvent(QKeyEvent * e) {
  56                 if (e->key() == Key_Escape) {
  57                         hide();
  58                         return;
  59                 }
  60                 QListBox::keyPressEvent(e);
  61         }
  62 };
  63
  64 }
  65
  66 QCommandBuffer::QCommandBuffer(QtView * view, ControlCommandBuffer & control)
  67         : QToolBar(view), view_(view), controller_(control)
  68 {
  69         setHorizontalStretchable(true);
  70
  71         QPixmap qp(LibFileSearch("images", "unknown", "xpm").c_str());
  72
  73         QToolButton * upb = new QToolButton(qp, _("Up"), "", this, SLOT(up()), this);
  74         upb->show();
  75
  76         QToolButton * downb = new QToolButton(qp, _("Down"), "", this, SLOT(down()), this);
  77         downb->show();
  78
  79         edit_ = new QCommandEdit(this);
  80         edit_->setMinimumSize(edit_->sizeHint());
  81         edit_->show();
  82         setStretchableWidget(edit_);
  83
  84         show();
  85
  86         connect(edit_, SIGNAL(escapePressed()), this, SLOT(cancel()));
  87         connect(edit_, SIGNAL(returnPressed()), this, SLOT(dispatch()));
  88         connect(edit_, SIGNAL(rightPressed()), this, SLOT(complete()));
  89         connect(edit_, SIGNAL(upPressed()), this, SLOT(up()));
  90         connect(edit_, SIGNAL(downPressed()), this, SLOT(down()));
  91 }
  92
  93
  94
  95 void QCommandBuffer::focus_command()
  96 {
  97         edit_->setFocus();
  98 }
  99
 100
 101 void QCommandBuffer::cancel()
 102 {
 103         view_->centralWidget()->setFocus();
 104         edit_->setText("");
 105 }
 106
 107
 108 void QCommandBuffer::dispatch()
 109 {
 110         controller_.dispatch(edit_->text().latin1());
 111         view_->centralWidget()->setFocus();
 112         edit_->setText("");
 113 }
 114
 115
 116 void QCommandBuffer::complete()
 117 {
 118         string const input = edit_->text().latin1();
 119         string new_input;
 120         vector<string> comp = controller_.completions(input, new_input);
 121
 122         if (comp.empty() && new_input == input) {
 123         //      show_info_suffix(_("[no match]"), input);
 124                 return;
 125         }
 126
 127         if (comp.empty()) {
 128                 edit_->setText(new_input.c_str());
 129         //      show_info_suffix(("[only completion]"), new_input + " ");
 130                 return;
 131         }
 132
 133         edit_->setText(new_input.c_str());
 134
 135         QTempListBox * list = new QTempListBox();
 136
 137         // For some reason the scrollview's contents are larger
 138         // than the number of actual items...
 139         vector<string>::const_iterator cit = comp.begin();
 140         vector<string>::const_iterator end = comp.end();
 141         for (; cit != end; ++cit) {
 142                 list->insertItem(cit->c_str());
 143         }
 144
 145         // width() is not big enough by a few pixels. Qt Sucks.
 146         list->setMinimumWidth(list->sizeHint().width() + 10);
 147
 148         list->resize(list->sizeHint());
 149         QPoint pos(edit_->mapToGlobal(QPoint(0, 0)));
 150         int y = pos.y() - list->height();
 151         if (y < 0)
 152                 y = 0;
 153         list->move(pos.x(), y);
 154
 155         connect(list, SIGNAL(selected(const QString &)),
 156                 this, SLOT(complete_selected(const QString &)));
 157
 158         list->show();
 159         list->setFocus();
 160 }
 161
 162
 163 void QCommandBuffer::complete_selected(const QString & str)
 164 {
 165         edit_->setText(str + " ");
 166         QWidget const * widget = static_cast<QWidget const *>(sender());
 167         const_cast<QWidget *>(widget)->hide();
 168 }
 169
 170
 171 void QCommandBuffer::up()
 172 {
 173         string const input = edit_->text().latin1();
 174         string const h(controller_.historyUp());
 175
 176         if (h.empty()) {
 177         //      show_info_suffix(_("[Beginning of history]"), input);
 178         } else {
 179                 edit_->setText(h.c_str());
 180         }
 181 }
 182
 183
 184 void QCommandBuffer::down()
 185 {
 186         string const input = edit_->text().latin1();
 187         string const h(controller_.historyDown());
 188
 189         if (h.empty()) {
 190         //      show_info_suffix(_("[End of history]"), input);
 191         } else {
 192                 edit_->setText(h.c_str());
 193         }
 194 }
 195
 196
 197 #if 0
 198 void XMiniBuffer::show_info_suffix(string const & suffix, string const & input)
 199 {
 200         stored_input_ = input;
 201         info_suffix_shown_ = true;
 202         set_input(input + " " + suffix);
 203         suffix_timer_->start();
 204 }
 205
 206
 207 void XMiniBuffer::suffix_timeout()
 208 {
 209         info_suffix_shown_ = false;
 210         set_input(stored_input_);
 211 }
 212
 213 #endif