Bug fixes from Ugras Baran:

when iconpalette detached from the math dialog, the iconpalette widget
width may become too large to fit to the screen.

when detached resized to a too small size, icons overlap.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@15966 a592a061-630c-0410-9148-cb99ea01b6c8

src/frontends/qt4/QMathDialog.C

@@ -224,12 +224,15 @@ void QMathDialog::expandClicked()
 {
 	int const id = symbolsCO->currentIndex();
 	IconPalette * p = makePanel(0, panels[id]);
+	p->setFixedWidth(40 * 15 + 20);
 	string s = "LyX: ";
 	s += fromqstr(symbolsCO->currentText());
 	p->setWindowTitle(toqstr(s));
 	p->resize(40 * 5, p->height());
-	p->show();
+ 	p->show();
-	p->setMaximumSize(p->width(), p->height());
+	p->resize(40 * 5 + 20, 40 * p->numRows() + 20);
+	p->setMinimumSize(40 * 5 + 20, 40 * 1 + 20);
+	p->setMaximumWidth (40 * p->numButtons() + 20);
 }
 
 

src/frontends/qt4/iconpalette.C

@@ -89,7 +89,7 @@ void IconPalette::resizeEvent(QResizeEvent * e)
 
 	int cols = max(width() / button_size, 1);
 	int rows = max(int(buttons_.size() / cols), 1);
-	if (buttons_.size() % cols)
+	if (buttons_.size() % cols )
 		++rows;
 
 	lyxerr[Debug::GUI] << "Laying out " << buttons_.size() << " widgets in a "
@@ -121,7 +121,13 @@ void IconPalette::resizeEvent(QResizeEvent * e)
 
 out:
 
-	resize(cols * button_size, rows * button_size);
+	int maxrow_ = int(buttons_.size() / cols);
+	if (!maxrow_ || buttons_.size() % cols )
+		++maxrow_;
+	if(!parent())
+		setMinimumHeight(button_size * maxrow_ + 20); //prevents the detached panel becomes unreadable
+	else 
+		resize(cols * button_size, rows * button_size);
 
 	maxcol_ = cols;
 
@@ -129,6 +135,18 @@ out:
 	update();
 }
 
+int IconPalette::numRows() 
+{
+	return maxrow_;
+}
+
+
+int IconPalette::numButtons() 
+{
+	return buttons_.size();
+}
+
+
 
 } // namespace lyx
 

src/frontends/qt4/iconpalette.h

@@ -36,6 +36,11 @@ public:
 
 	/// add a button
 	void add(QPixmap const & pixmap, std::string name, std::string tooltip);
+	/// get required number of rows.
+	int numRows();
+	/// get number of Buttons
+	int numButtons();
+
 Q_SIGNALS:
 	void button_clicked(const std::string &);
 protected:
@@ -45,6 +50,8 @@ protected Q_SLOTS:
 private:
 	int maxcol_;
 
+	int maxrow_;
+
 	QGridLayout * layout_;
 
 	typedef std::pair<QPushButton *, std::string> Button;