Printing: scale fonts when printing

This seem to work better, but it misses a couple of items at times (for
example the highest label on some of the axis).

Needs lots more testing.

See #590

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

qt-ui/printlayout.cpp

@@ -136,6 +136,7 @@ void PrintLayout::printProfileDives(int divesPerRow, int divesPerColumn)
 	const int profileFrameStyle = profile->frameStyle();
 	profile->setFrameStyle(QFrame::NoFrame);
 	profile->setPrintMode(true, !printOptions->color_selected);
+	profile->setFontPrintScale(0.4); // does a single scale work for all layouts???
 	QSize originalSize = profile->size();
 	// swap rows/col for landscape
 	if (printer->orientation() == QPrinter::Landscape) {

qt-ui/profile/divecartesianaxis.cpp

@@ -5,6 +5,7 @@
 #include "preferences.h"
 #include "diveplotdatamodel.h"
 #include "animationfunctions.h"
+#include "mainwindow.h"
 #include <QPen>
 #include <QGraphicsScene>
 #include <QDebug>
@@ -132,7 +133,7 @@ void emptyList(QList<T *> &list, double steps)
 
 void DiveCartesianAxis::updateTicks(color_indice_t color)
 {
-	if (!scene() || !changed)
+	if (!scene() || (!changed && !MainWindow::instance()->graphics()->getPrintMode()))
 		return;
 	QLineF m = line();
 	// unused so far:

qt-ui/profile/divetextitem.cpp

@@ -1,5 +1,6 @@
 #include "divetextitem.h"
 #include "animationfunctions.h"
+#include "mainwindow.h"
 
 #include <QPropertyAnimation>
 #include <QApplication>
@@ -61,11 +62,11 @@ void DiveTextItem::updateText()
 	QFont fnt(qApp->font());
 	if ((size = fnt.pixelSize()) > 0) {
 		// set in pixels - so the scale factor may not make a difference if it's too close to 1
-		size *= scale;
+		size *= scale * MainWindow::instance()->graphics()->getFontPrintScale();
 		fnt.setPixelSize(size);
 	} else {
 		size = fnt.pointSizeF();
-		size *= scale;
+		size *= scale * MainWindow::instance()->graphics()->getFontPrintScale();;
 		fnt.setPointSizeF(size);
 	}
 	QFontMetrics fm(fnt);

qt-ui/profile/profilewidget2.cpp

@@ -90,7 +90,8 @@ ProfileWidget2::ProfileWidget2(QWidget *parent) : QGraphicsView(parent),
 	isGrayscale(false),
 	printMode(false),
 	shouldCalculateMaxTime(true),
-	shouldCalculateMaxDepth(true)
+	shouldCalculateMaxDepth(true),
+	fontPrintScale(1.0)
 {
 	memset(&plotInfo, 0, sizeof(plotInfo));
 
@@ -1054,12 +1055,30 @@ void ProfileWidget2::changeGas()
 	replot();
 }
 
+bool ProfileWidget2::getPrintMode()
+{
+	return printMode;
+}
+
 void ProfileWidget2::setPrintMode(bool mode, bool grayscale)
 {
 	printMode = mode;
 	isGrayscale = mode ? grayscale : false;
 }
 
+void ProfileWidget2::setFontPrintScale(double scale)
+{
+	fontPrintScale = scale;
+}
+
+double ProfileWidget2::getFontPrintScale()
+{
+	if (printMode)
+		return fontPrintScale;
+	else
+		return 1.0;
+}
+
 void ProfileWidget2::editName()
 {
 	QAction *action = qobject_cast<QAction *>(sender());

qt-ui/profile/profilewidget2.h

@@ -71,9 +71,12 @@ public:
 	virtual bool eventFilter(QObject *, QEvent *);
 	void setupItem(AbstractProfilePolygonItem *item, DiveCartesianAxis *hAxis, DiveCartesianAxis *vAxis, DivePlotDataModel *model, int vData, int hData, int zValue);
 	void setPrintMode(bool mode, bool grayscale = false);
+	bool getPrintMode();
 	bool isPointOutOfBoundaries(const QPointF &point) const;
 	bool isPlanner();
 	bool isAddOrPlanner();
+	double getFontPrintScale();
+	void setFontPrintScale(double scale);
 	State currentState;
 
 public
@@ -174,6 +177,7 @@ private:
 	bool shouldCalculateMaxDepth;
 	int maxtime;
 	int maxdepth;
+	double fontPrintScale;
 };
 
 #endif // PROFILEWIDGET2_H