src/frontends/qt2/QMathDialog.C

   1 /**
   2  * \file QMathDialog.C
   3  * Copyright 2001 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 "debug.h"
  13
  14 #include "QMathDialog.h"
  15 #include "QMath.h"
  16
  17 #include "ControlMath.h"
  18 #include "iconpalette.h"
  19
  20 #include <qapplication.h>
  21 #include <qwidgetstack.h>
  22 #include <qcombobox.h>
  23 #include <qlistbox.h>
  24 #include <qpixmap.h>
  25 #include <qscrollview.h>
  26 #include <qlayout.h>
  27
  28 using std::min;
  29 using std::max;
  30 using std::endl;
  31
  32 class QScrollViewSingle : public QScrollView {
  33 public:
  34         QScrollViewSingle(QWidget * p)
  35                 : QScrollView(p) {
  36                 setResizePolicy(Manual);
  37                 setHScrollBarMode(AlwaysOff);
  38                 setVScrollBarMode(AlwaysOn);
  39                 setBackgroundMode(PaletteBackground);
  40                 viewport()->setBackgroundMode(PaletteBackground);
  41         }
  42
  43         void setChild(QWidget * w) {
  44                 w_ = w;
  45                 setMinimumWidth(verticalScrollBar()->width() + w_->width() + 4);
  46                 addChild(w_);
  47         }
  48
  49 protected:
  50         virtual void resizeEvent(QResizeEvent * e) {
  51                 QScrollView::resizeEvent(e);
  52                 if (!w_)
  53                         return;
  54
  55                 w_->resize(viewport()->width(), w_->height());
  56                 // force the resize to get accurate scrollbars
  57                 qApp->processEvents();
  58                 resizeContents(w_->width(), w_->height());
  59         }
  60
  61 private:
  62         QWidget * w_;
  63 };
  64
  65 namespace {
  66         char const ** panels[] = {
  67                 latex_bop, latex_varsz, latex_brel, latex_greek, latex_arrow,
  68                 latex_dots, latex_deco, latex_misc, latex_ams_ops,
  69                 latex_ams_rel, latex_ams_nrel, latex_ams_arrows,
  70                 latex_ams_misc
  71         };
  72         int const nr_panels = sizeof(panels)/sizeof(panels[0]);
  73 }
  74
  75
  76 QMathDialog::QMathDialog(QMath * form)
  77         : QMathDialogBase(0, 0, false, 0),
  78         form_(form)
  79 {
  80         connect(symbolsCO, SIGNAL(activated(int)), symbolsWS, SLOT(raiseWidget(int)));
  81
  82         for (int i = 0; *function_names[i]; ++i) {
  83                 functionsLB->insertItem(function_names[i]);
  84         }
  85
  86         for (int i = 0; i < nr_panels; ++i) {
  87                 addPanel(panels[i]);
  88         }
  89         symbolsWS->raiseWidget(0);
  90         symbolsWS->resize(symbolsWS->sizeHint());
  91 }
  92
  93
  94 IconPalette * QMathDialog::makePanel(QWidget * parent, char const ** entries)
  95 {
  96         IconPalette * p = new IconPalette(parent);
  97         for (int i = 0; *entries[i]; ++i) {
  98                 string xpm_name = LibFileSearch("images/math/", entries[i], "xpm");
  99                 p->add(QPixmap(xpm_name.c_str()), entries[i], string("\\") + entries[i]);
 100         }
 101         connect(p, SIGNAL(button_clicked(string)), this, SLOT(symbol_clicked(string)));
 102
 103         return p;
 104 }
 105
 106
 107 void QMathDialog::addPanel(char const ** entries)
 108 {
 109         static int id = 0;
 110
 111         QScrollViewSingle * view = new QScrollViewSingle(symbolsWS);
 112
 113         IconPalette * p = makePanel(view->viewport(), entries);
 114         view->setChild(p);
 115         symbolsWS->addWidget(view, id++);
 116 }
 117
 118
 119 void QMathDialog::symbol_clicked(string str)
 120 {
 121         form_->insert_symbol(str);
 122 }
 123
 124
 125 void QMathDialog::fracClicked()
 126 {
 127         form_->insert_symbol("frac");
 128 }
 129
 130
 131 void QMathDialog::sqrtClicked()
 132 {
 133         form_->insert_symbol("sqrt");
 134 }
 135
 136
 137 void QMathDialog::delimiterClicked()
 138 {
 139 }
 140
 141
 142 void QMathDialog::expandClicked()
 143 {
 144         int const id = symbolsWS->id(symbolsWS->visibleWidget());
 145         IconPalette * p = makePanel(0, panels[id]);
 146         string s = "LyX: ";
 147         s += symbolsCO->text(id).latin1();
 148         p->setCaption(s.c_str());
 149         p->resize(40 * 5, p->height());
 150         p->show();
 151         p->setMaximumSize(p->width(), p->height());
 152 }
 153
 154
 155 void QMathDialog::functionSelected(const QString & str)
 156 {
 157         form_->insert_symbol(str.latin1());
 158 }
 159
 160
 161 void QMathDialog::matrixClicked()
 162 {
 163 }
 164
 165
 166 void QMathDialog::spaceClicked()
 167 {
 168 }
 169
 170
 171 void QMathDialog::styleClicked()
 172 {
 173 }
 174
 175
 176 void QMathDialog::subscriptClicked()
 177 {
 178         form_->subscript();
 179 }
 180
 181
 182 void QMathDialog::superscriptClicked()
 183 {
 184         form_->superscript();
 185 }