Move all files under src/

1 files changed, 59 insertions, 0 deletions

diff --git a/src/ui/ScrollBar.cpp b/src/ui/ScrollBar.cpp
new file mode 100644
index 00000000..37218a13
--- /dev/null
+++ b/src/ui/ScrollBar.cpp
@@ -0,0 +1,59 @@
+/*
+ * nheko Copyright (C) 2017  Konstantinos Sideris <siderisk@auth.gr>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "ScrollBar.h"
+
+ScrollBar::ScrollBar(QScrollArea *area, QWidget *parent)
+  : QScrollBar(parent)
+  , area_{area}
+{}
+
+void
+ScrollBar::paintEvent(QPaintEvent *)
+{
+        if (!width() && !height()) {
+                hide();
+                return;
+        }
+
+        QPainter p(this);
+        p.setRenderHint(QPainter::TextAntialiasing);
+        p.setRenderHint(QPainter::Antialiasing);
+        p.setRenderHint(QPainter::SmoothPixmapTransform);
+
+        p.setPen(Qt::NoPen);
+
+        p.setBrush(backgroundColor());
+        QRect backgroundArea(Padding, 0, handleWidth_, height());
+        p.drawRoundedRect(backgroundArea, roundRadius_, roundRadius_);
+
+        int areaHeight   = area_->height();
+        int widgetHeight = area_->widget()->height();
+
+        double visiblePercentage = (double)areaHeight / (double)widgetHeight;
+        int handleHeight = std::max(visiblePercentage * areaHeight, (double)minHandleHeight_);
+
+        if (maximum() == 0) {
+                return;
+        }
+
+        int handle_y = (value() * (areaHeight - handleHeight - roundRadius_ / 2)) / maximum();
+
+        p.setBrush(handleColor());
+        QRect handleArea(Padding, handle_y, handleWidth_, handleHeight);
+        p.drawRoundedRect(handleArea, roundRadius_, roundRadius_);
+}