86 lines
2.5 KiB
C++
86 lines
2.5 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef AGS_SHARED_GUI_GUI_SLIDER_H
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#define AGS_SHARED_GUI_GUI_SLIDER_H
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#include "common/std/vector.h"
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#include "ags/shared/gui/gui_object.h"
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namespace AGS3 {
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namespace AGS {
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namespace Shared {
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class GUISlider : public GUIObject {
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public:
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GUISlider();
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// Tells if the slider is horizontal (otherwise - vertical)
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bool IsHorizontal() const;
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bool IsOverControl(int x, int y, int leeway) const override;
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// Compatibility: sliders are not clipped as of 3.6.0
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bool IsContentClipped() const override { return false; }
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bool HasAlphaChannel() const override;
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// Operations
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Rect CalcGraphicRect(bool clipped) override;
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void Draw(Bitmap *ds, int x = 0, int y = 0) override;
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// Events
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bool OnMouseDown() override;
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void OnMouseMove(int xp, int yp) override;
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void OnMouseUp() override;
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// Serialization
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void ReadFromFile(Stream *in, GuiVersion gui_version) override;
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void WriteToFile(Stream *out) const override;
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void ReadFromSavegame(Stream *in, GuiSvgVersion svg_ver) override;
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void WriteToSavegame(Stream *out) const override;
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// TODO: these members are currently public; hide them later
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public:
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int32_t MinValue;
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int32_t MaxValue;
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int32_t Value;
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int32_t BgImage;
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int32_t HandleImage;
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int32_t HandleOffset;
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bool IsMousePressed;
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private:
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// Updates dynamic metrics and positions of elements
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void UpdateMetrics();
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// Cached coordinates of slider bar; in relative coords
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Rect _cachedBar;
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// Cached coordinates of slider handle; in relative coords
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Rect _cachedHandle;
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// The length of the handle movement range, in pixels
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int _handleRange;
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};
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} // namespace Shared
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} // namespace AGS
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} // namespace AGS3
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#endif
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