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 <qwidgetstack.h>
  21 #include <qcombobox.h>
  22 #include <qlistbox.h>
  23 #include <qpixmap.h>
  24 #include <qscrollview.h>
  25 #include <qlayout.h>
  26
  27 using std::min;
  28 using std::max;
  29 using std::endl;
  30
  31 class QScrollViewSingle : public QScrollView {
  32 public:
  33         QScrollViewSingle(QWidget * p)
  34                 : QScrollView(p) {
  35                 setResizePolicy(Manual);
  36                 setHScrollBarMode(AlwaysOff);
  37                 setVScrollBarMode(AlwaysOn);
  38                 setMinimumHeight(200);
  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                 resizeContents(w_->width(), w_->height());
  57                 setMinimumHeight(200);
  58         }
  59
  60 private:
  61         QWidget * w_;
  62 };
  63
  64 namespace {
  65         char const ** panels[] = {
  66                 latex_bop, latex_varsz, latex_brel, latex_greek, latex_arrow,
  67                 latex_dots, latex_deco, latex_misc, latex_ams_ops,
  68                 latex_ams_rel, latex_ams_nrel, latex_ams_arrows,
  69                 latex_ams_misc
  70         };
  71         int const nr_panels = sizeof(panels)/sizeof(panels[0]);
  72 }
  73
  74
  75 QMathDialog::QMathDialog(QMath * form)
  76         : QMathDialogBase(0, 0, false, 0),
  77         form_(form)
  78 {
  79         connect(symbolsCO, SIGNAL(activated(int)), symbolsWS, SLOT(raiseWidget(int)));
  80
  81         for (int i = 0; *function_names[i]; ++i) {
  82                 functionsLB->insertItem(function_names[i]);
  83         }
  84
  85         for (int i = 0; i < nr_panels; ++i) {
  86                 addPanel(panels[i]);
  87         }
  88         symbolsWS->raiseWidget(0);
  89         symbolsWS->resize(symbolsWS->sizeHint());
  90 }
  91
  92
  93 IconPalette * QMathDialog::makePanel(QWidget * parent, char const ** entries)
  94 {
  95         IconPalette * p = new IconPalette(parent);
  96         for (int i = 0; *entries[i]; ++i) {
  97                 string xpm_name = LibFileSearch("images/math/", entries[i], "xpm");
  98                 p->add(QPixmap(xpm_name.c_str()), entries[i], string("\\") + entries[i]);
  99         }
 100         connect(p, SIGNAL(button_clicked(string)), this, SLOT(symbol_clicked(string)));
 101         return p;
 102 }
 103
 104
 105 void QMathDialog::addPanel(char const ** entries)
 106 {
 107         static int id = 0;
 108
 109         QScrollViewSingle * view = new QScrollViewSingle(symbolsWS);
 110         IconPalette * p = makePanel(view->viewport(), entries);
 111         view->setChild(p);
 112         symbolsWS->addWidget(view, id++);
 113 }
 114
 115
 116 void QMathDialog::symbol_clicked(string str)
 117 {
 118         form_->insert_symbol(str);
 119 }
 120
 121
 122 void QMathDialog::fracClicked()
 123 {
 124         form_->insert_symbol("frac");
 125 }
 126
 127
 128 void QMathDialog::sqrtClicked()
 129 {
 130         form_->insert_symbol("sqrt");
 131 }
 132
 133
 134 void QMathDialog::delimiterClicked()
 135 {
 136 }
 137
 138
 139 void QMathDialog::expandClicked()
 140 {
 141         int const id = symbolsWS->id(symbolsWS->visibleWidget());
 142         IconPalette * p = makePanel(0, panels[id]);
 143         p->show();
 144 }
 145
 146
 147 void QMathDialog::functionSelected(const QString & str)
 148 {
 149         form_->insert_symbol(str.latin1());
 150 }
 151
 152
 153 void QMathDialog::matrixClicked()
 154 {
 155 }
 156
 157
 158 void QMathDialog::spaceClicked()
 159 {
 160 }
 161
 162
 163 void QMathDialog::styleClicked()
 164 {
 165 }
 166
 167
 168 void QMathDialog::subscriptClicked()
 169 {
 170         form_->subscript();
 171 }
 172
 173
 174 void QMathDialog::superscriptClicked()
 175 {
 176         form_->superscript();
 177 }