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engines/bagel/spacebar/boflib/gui/scroll_bar.h

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+
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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/>.
+ *
+ */
+
+#ifndef BAGEL_BOFLIB_GUI_SCROLL_BAR_H
+#define BAGEL_BOFLIB_GUI_SCROLL_BAR_H
+
+#include "bagel/spacebar/boflib/gui/window.h"
+#include "bagel/spacebar/boflib/gfx/sprite.h"
+#include "bagel/spacebar/boflib/gfx/text.h"
+
+namespace Bagel {
+namespace SpaceBar {
+
+#define BSB_LEFT 800
+#define BSB_RIGHT 801
+#define BSB_LINE_LEFT 802
+#define BSB_LINE_RIGHT 803
+#define BSB_PAGE_LEFT 804
+#define BSB_PAGE_RIGHT 805
+#define BSB_THUMB_POS 806
+#define BSB_THUMB_TRACK 807
+
+#define MAX_TEXT 128
+
+class CBofScrollBar : public CBofWindow {
+public:
+	CBofScrollBar();
+
+	virtual ~CBofScrollBar();
+
+	// Implementation
+	//
+
+	ErrorCode loadBitmaps(const char *pszBack, const char *pszThumb, const char *pszLeftUp = nullptr, const char *pszRightUp = nullptr, const char *pszLeftDown = nullptr, const char *pszRightDown = nullptr);
+
+	ErrorCode setPos(int nPos, bool bRepaint = true, bool isInitial = false);
+	int getPos() const {
+		return _nPos;
+	}
+
+	ErrorCode lineLeft() {
+		return setPos(_nPos - _nLineDelta);
+	}
+	ErrorCode lineRight() {
+		return setPos(_nPos + _nLineDelta);
+	}
+	ErrorCode pageLeft() {
+		return setPos(_nPos - _nPageDelta);
+	}
+	ErrorCode pageRight() {
+		return setPos(_nPos + _nPageDelta);
+	}
+
+	ErrorCode home() {
+		return setPos(_nMin);
+	}
+	ErrorCode end() {
+		return setPos(_nMax);
+	}
+
+	int getScrollMin() const {
+		return _nMin;
+	}
+	int getScrollMax() const {
+		return _nMax;
+	}
+
+	void setLineDelta(const int nDelta) {
+		_nLineDelta = nDelta;
+	}
+	int getLineDelta() const {
+		return _nLineDelta;
+	}
+
+	void setPageDelta(const int nDelta) {
+		_nPageDelta = nDelta;
+	}
+	int getPageDelta() const {
+		return _nPageDelta;
+	}
+
+	void getScrollRange(int &nMin, int &nMax);
+	void setScrollRange(int nMin, int nMax, bool bRepaint = true);
+
+	ErrorCode setText(const char *pszText, int nFlags = JUSTIFY_CENTER);
+
+	void setRepeatTimer(uint32 nMilliSeconds);
+	ErrorCode paint(CBofRect *pRect = nullptr);
+
+protected:
+	int pointToPos(CBofPoint *pPoint);
+
+	void onPaint(CBofRect *pDirtyRect) override;
+	void onLButtonDown(uint32 nFlags, CBofPoint *pPoint, void * = nullptr) override;
+	void onLButtonUp(uint32 nFlags, CBofPoint *pPoint, void * = nullptr) override;
+	void onMouseMove(uint32 nFlags, CBofPoint *pPoint, void * = nullptr) override;
+	void onTimer(uint32) override;
+
+	//
+	// Data members
+	//
+	CBofBitmap *_pLeftBtnUp;
+	CBofBitmap *_pRightBtnUp;
+	CBofBitmap *_pLeftBtnDn;
+	CBofBitmap *_pRightBtnDn;
+	CBofSprite *_pThumb;
+
+	CBofRect _cLeftBtnRect;
+	CBofRect _cRightBtnRect;
+
+	int _nMin;
+	int _nMax;
+	int _nPos;
+	int _nLineDelta;
+	int _nPageDelta;
+
+	CBofText *_pScrollText;
+	char _szScrollText[MAX_TEXT];
+
+	CBofSize _cThumbSize;
+	CBofSize _cBkSize;
+
+	int _nOffset;
+	int _nScrollWidth;
+	int _nRange;
+	bool _bMouseCaptured;
+	CBofPoint _cCurPoint;
+	CBofPoint _cThumbPos;
+	int _nScrollState;
+	uint32 _nTimerCount;
+};
+
+} // namespace SpaceBar
+} // namespace Bagel
+
+#endif