Fix blurriness of svg icons (#1108)

.gitignore

@@ -4,6 +4,7 @@ cscope*
 .clang_complete
 *wintoastlib*
 /.ccls-cache
+/.cache
 /.exrc
 .gdb_history
 .hunter

resources/qml/ImageButton.qml

@@ -28,6 +28,8 @@ AbstractButton {
         // Workaround, can't get icon.source working for now...
         anchors.fill: parent
         source: image != "" ? ("image://colorimage/" + image + "?" + ((button.hovered && changeColorOnHover) ? highlightColor : buttonTextColor)) : ""
+        sourceSize.height: button.height
+        sourceSize.width: button.width
         fillMode: Image.PreserveAspectFit
     }
 

src/ColorImageProvider.cpp

@@ -5,10 +5,11 @@
 
 #include "ColorImageProvider.h"
 
+#include <QIcon>
 #include <QPainter>
 
 QPixmap
-ColorImageProvider::requestPixmap(const QString &id, QSize *size, const QSize &)
+ColorImageProvider::requestPixmap(const QString &id, QSize *size, const QSize &req)
 {
     auto args = id.split('?');
 
@@ -17,6 +18,8 @@ ColorImageProvider::requestPixmap(const QString &id, QSize *size, const QSize &)
     if (size)
         *size = QSize(source.width(), source.height());
 
+    if (req.width() > 0 && req.height() > 0)
+        source = QIcon(args[0]).pixmap(req);
     if (args.size() < 2)
         return source;