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/*
nanogui/vscrollpanel.h -- Adds a vertical scrollbar around a widget
that is too big to fit into a certain area
NanoGUI was developed by Wenzel Jakob <wenzel.jakob@epfl.ch>.
The widget drawing code is based on the NanoVG demo application
by Mikko Mononen.
All rights reserved. Use of this source code is governed by a
BSD-style license that can be found in the LICENSE.txt file.
*/
#pragma once
#include <nanogui/widget.h>
NAMESPACE_BEGIN(nanogui)
class NANOGUI_EXPORT VScrollPanel : public Widget {
public:
VScrollPanel(Widget *parent);
float scroll() const { return mScroll; }
void setScroll(float scroll) { mScroll = scroll; }
virtual void performLayout(NVGcontext *ctx) override;
virtual Vector2i preferredSize(NVGcontext *ctx) const override;
virtual bool mouseDragEvent(const Vector2i &p, const Vector2i &rel, int button, int modifiers) override;
virtual bool scrollEvent(const Vector2i &p, const Vector2f &rel) override;
virtual void draw(NVGcontext *ctx) override;
virtual void save(Serializer &s) const override;
virtual bool load(Serializer &s) override;
protected:
int mChildPreferredHeight;
float mScroll;
bool mUpdateLayout;
public:
EIGEN_MAKE_ALIGNED_OPERATOR_NEW
};
NAMESPACE_END(nanogui)