Improved dark part colour gradients. Added gGradientFromQColor() in widgets/utils.cpp

 called from PartCanvas draw.

2 files changed, 25 insertions, 0 deletions

diff --git a/muse2/muse/widgets/utils.cpp b/muse2/muse/widgets/utils.cpp
index 1bf4ca64..693f3c36 100644
--- a/muse2/muse/widgets/utils.cpp
+++ b/muse2/muse/widgets/utils.cpp
@@ -11,6 +11,10 @@
 #include <sys/time.h>
 
 #include <QFrame>
+#include <QColor>
+#include <QGradient>
+#include <QLinearGradient>
+#include <QPointF>
 
 #include "utils.h"
 
@@ -354,3 +358,19 @@ bool autoAdjustFontSize(QFrame* w, const QString& s, bool ignoreWidth, bool igno
   
   return true;  
 }
+
+QGradient gGradientFromQColor(const QColor& c, const QPointF& start, const QPointF& finalStop)
+{
+  int h = c.hsvHue(), s = c.hsvSaturation(), a = c.alpha();
+  int cv = c.value();
+  int v0 = cv + (255 - cv)/2;
+  int v1 = cv - cv/2;
+  QColor c0 = QColor::fromHsv(h, s, v0, a); 
+  QColor c1 = QColor::fromHsv(h, s, v1, a); 
+  
+  QLinearGradient gradient(start, finalStop);
+  gradient.setColorAt(0, c0);
+  gradient.setColorAt(1, c1);
+  
+  return gradient;
+}
\ No newline at end of file
diff --git a/muse2/muse/widgets/utils.h b/muse2/muse/widgets/utils.h
index 654a7834..b6997023 100644
--- a/muse2/muse/widgets/utils.h
+++ b/muse2/muse/widgets/utils.h
@@ -11,6 +11,10 @@
 class QFrame;
 class QString;
 class QWidget;
+class QGradient;
+class QCanvas;
+class QPointF;
+class QColor;
 
 
 extern QString bitmap2String(int bm);
@@ -18,6 +22,7 @@ extern int string2bitmap(const QString& str);
 extern QString u32bitmap2String(unsigned int bm);
 extern unsigned int string2u32bitmap(const QString& str);
 extern bool autoAdjustFontSize(QFrame* w, const QString& s, bool ignoreWidth = false, bool ignoreHeight = false, int max = 10, int min = 4);
+extern QGradient gGradientFromQColor(const QColor& c, const QPointF& start, const QPointF& finalStop);
 
 extern int num2cols(int min, int max);
 extern QFrame* hLine(QWidget* parent);