NEW: added JKQTBasePlotterStyle::plotLabelTopBorder and made plot labels BOLD

doc/dox/whatsnew.dox

@@ -91,6 +91,7 @@ Changes, compared to  \ref page_whatsnew_V4_0_0 "v4.0.0" include:
     <li>NEW: Using Q_SIGNALS/Q_SLOTS instead of signals/slots MOC-keywords ... this allows for interoperability with other signals/slots frameworks, thanks to <a href="https://github.com/nickmontini">user:nickmontini</a> for the proposal</li>
     <li>NEW: you can use any (preferably stepped/categorial) JKQTPMathImageColorPalette as default graph colors list in a style.ini file, by setting <tt>auto_styles/use_color_from_palette=PALETTE_NAME</tt></li>
     <li>NEW: added entry for JKQTBasePlotterStyle::plotLabelColor to set the plot label color</li>
+    <li>NEW: added JKQTBasePlotterStyle::plotLabelTopBorder to set the  spacing between top and plot label</li>
     <li>NEW: Due to addition of JKQTMathText::setFontOptions() and the matchign extension of JKQTMathText::setFontSpecial() (see below) you can now add modifiers like <tt>+BOLD+ITALIC</tt> to any font-name provided to JKQTPlotter and in style INI-files</li>
   </ul></li>
   

lib/jkqtplotter/jkqtpbaseplotter.cpp

@@ -821,7 +821,7 @@ void JKQTBasePlotter::calcPlotScaling(JKQTPEnhancedPainter& painter){
 
     if (!plotLabel.isEmpty()) {
         QSizeF s=getTextSizeSize(plotterStyle.plotLabelFontName, plotterStyle.plotLabelFontSize*fontSizeMultiplier, plotLabel, painter);
-        internalTitleHeight=s.height()+2.0*pt2px(painter, plotterStyle.plotLabelOffset);
+        internalTitleHeight=s.height()+pt2px(painter, plotterStyle.plotLabelOffset)+pt2px(painter, plotterStyle.plotLabelTopBorder);
         internalPlotBorderTop+=internalTitleHeight;
 
     }
@@ -1378,7 +1378,7 @@ void JKQTBasePlotter::drawPlot(JKQTPEnhancedPainter& painter) {
         double a=0,d=0,so=0,w=0;
         getTextSizeDetail(plotterStyle.plotLabelFontName,plotterStyle.plotLabelFontSize*fontSizeMultiplier,plotLabel, painter, w, a, d, so);
         QSizeF s=QSizeF(w, a+d);
-        mathText.draw(painter, internalPlotBorderLeft+(internalPlotWidth-s.width())/2.0,plotterStyle.plotBorderTop+a+pt2px(painter, plotterStyle.plotLabelOffset), plotterStyle.debugShowTextBoxes);
+        mathText.draw(painter, internalPlotBorderLeft+(internalPlotWidth-s.width())/2.0,plotterStyle.plotBorderTop+a+pt2px(painter, plotterStyle.plotLabelTopBorder), plotterStyle.debugShowTextBoxes);
         if (plotterStyle.debugShowRegionBoxes) {
             painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
             QPen p("blue");
@@ -3011,6 +3011,20 @@ double JKQTBasePlotter::getPlotLabelOffset() const
 {
     return this->plotterStyle.plotLabelOffset;
 }
+
+void JKQTBasePlotter::setPlotLabelTopBorder(double __value)
+{
+    if (jkqtp_approximatelyUnequal(this->plotterStyle.plotLabelTopBorder , __value)) {
+        this->plotterStyle.plotLabelTopBorder = __value;
+        redrawPlot();
+    }
+}
+
+double JKQTBasePlotter::getPlotLabelTopBorder() const
+{
+    return this->plotterStyle.plotLabelTopBorder;
+}
+
 void JKQTBasePlotter::setPlotLabelColor(QColor __value)
 {
     if (this->plotterStyle.plotLabelColor != __value) {

lib/jkqtplotter/jkqtpbaseplotter.h

@@ -1139,6 +1139,8 @@ class JKQTPLOTTER_LIB_EXPORT JKQTBasePlotter: public QObject {
         double getPlotLabelFontSize() const;
         /** \copydoc JKQTBasePlotterStyle::plotLabelOffset */
         double getPlotLabelOffset() const;
+        /** \copydoc JKQTBasePlotterStyle::plotLabelTopBorder */
+        double getPlotLabelTopBorder() const;
         /** \copydoc JKQTBasePlotterStyle::plotLabelFontName */
         QString getplotLabelFontName() const;
         /** \copydoc JKQTBasePlotterStyle::plotLabelColor */
@@ -2017,6 +2019,8 @@ class JKQTPLOTTER_LIB_EXPORT JKQTBasePlotter: public QObject {
         void setPlotLabelFontSize(double __value);
         /** \copydoc JKQTBasePlotterStyle::plotLabelOffset */
         void setPlotLabelOffset(double __value);
+        /** \copydoc JKQTBasePlotterStyle::plotLabelTopBorder */
+        void setPlotLabelTopBorder(double __value);
         /** \copydoc JKQTBasePlotterStyle::plotLabelFontName */
         void setplotLabelFontName(const QString & __value);
         /** \copydoc JKQTBasePlotterStyle::plotLabelColor */

lib/jkqtplotter/jkqtpbaseplotterstyle.cpp

@@ -21,9 +21,10 @@ JKQTBasePlotterStyle::JKQTBasePlotterStyle():
     plotFrameWidth(1),
     plotFrameRounding(0),
     plotFrameVisible(false),
-    plotLabelFontName("GUI"),
-    plotLabelFontSize(qCeil(QApplication::font().pointSizeF()*1.2)),
+    plotLabelFontName("GUI+BOLD"),
+    plotLabelFontSize(qCeil(QApplication::font().pointSizeF()*1.5)),
     plotLabelOffset(qCeil(QApplication::font().pointSizeF()*0.4)),
+    plotLabelTopBorder(qCeil(QApplication::font().pointSizeF()*0.25)),
     useAntiAliasingForSystem(true),
     useAntiAliasingForText(true),
     defaultTextColor(QColor("black")),
@@ -54,6 +55,7 @@ void JKQTBasePlotterStyle::loadSettings(const QSettings &settings, const QString
     plotLabelFontName=settings.value(group+"plot_label_font_name", defaultStyle.plotLabelFontName).toString();
     plotLabelFontSize=settings.value(group+"plot_label_font_size", defaultStyle.plotLabelFontSize).toDouble();
     plotLabelOffset=settings.value(group+"plot_label_offset", defaultStyle.plotLabelOffset).toDouble();
+    plotLabelTopBorder=settings.value(group+"plot_label_top_border", defaultStyle.plotLabelTopBorder).toDouble();
     plotLabelColor=jkqtp_String2QColor(settings.value(group+"plot_label_color", jkqtp_QColor2String(defaultStyle.plotLabelColor)).toString());
     widgetBackgroundBrush=QBrush(jkqtp_String2QColor(settings.value(group+"widget_background_color", jkqtp_QColor2String(defaultStyle.widgetBackgroundBrush.color())).toString()));
     exportBackgroundBrush=QBrush(jkqtp_String2QColor(settings.value(group+"widget_background_color_for_export", jkqtp_QColor2String(defaultStyle.exportBackgroundBrush.color())).toString()));
@@ -103,6 +105,7 @@ void JKQTBasePlotterStyle::saveSettings(QSettings &settings, const QString &grou
     settings.setValue(group+"plot_label_font_name", plotLabelFontName);
     settings.setValue(group+"plot_label_font_size", plotLabelFontSize);
     settings.setValue(group+"plot_label_offset", plotLabelOffset);
+    settings.setValue(group+"plot_label_top_border", plotLabelTopBorder);
     settings.setValue(group+"plot_label_color", jkqtp_QColor2String(plotLabelColor));
     settings.setValue(group+"plot_frame_visible", plotFrameVisible);
     settings.setValue(group+"plot_frame_color", jkqtp_QColor2String(plotFrameColor));

lib/jkqtplotter/jkqtpbaseplotterstyle.h

@@ -141,8 +141,10 @@ class JKQTPLOTTER_LIB_EXPORT JKQTBasePlotterStyle {
         double plotLabelFontSize;
         /** \brief the plot label color */
         QColor plotLabelColor;
-        /** \brief offset of the plot label from the next element [pt]. This offset is added below AND above the plot label! */
+        /** \brief offset of the plot label from the next element of the graph, i.e. below the label [pt]. \see plotLabelTopBorder for spacing above */
         double plotLabelOffset;
+        /** \brief offset of the plot label from the top [pt]. \see plotLabelOffset for spacing between label and graph */
+        double plotLabelTopBorder;
         /** \brief specifies whether to use antialiasing for plotting the coordinate system */
         bool useAntiAliasingForSystem;
         /** \brief specifies whether to use antialiasing when drawing any text

lib/jkqtplotter/resources/styles/default.ini

@@ -56,8 +56,10 @@ plot_border_bottom=5
 text_default_color=black
 text_default_size=9
 text_default_font_name=GUI
-plot_label_font_name=GUI
-plot_label_font_size=11
+plot_label_font_name=GUI+BOLD
+plot_label_font_size=14
+plot_label_offset=4
+plot_label_top_border=3
 plot_label_color=black
 plot_frame_visible=false
 plot_frame_color=black