1 files changed, 246 insertions, 0 deletions
diff --git a/engines/titanic/pet_control/pet_slider.cpp b/engines/titanic/pet_control/pet_slider.cpp
new file mode 100644
index 0000000000..eb07012f43
--- /dev/null
+++ b/engines/titanic/pet_control/pet_slider.cpp
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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 2
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "titanic/pet_control/pet_slider.h"
+#include "titanic/pet_control/pet_control.h"
+
+namespace Titanic {
+
+CPetSlider::CPetSlider() {
+	_orientation = 0;
+	_thumbWidth = 0;
+	_thumbHeight = 0;
+	_sliderOffset = 0;
+	_thumbFocused = false;
+}
+
+Rect CPetSlider::clearDirtyArea() {
+	Rect result = _dirtyArea;
+	_dirtyArea.clear();
+	return result;
+}
+
+bool CPetSlider::checkThumb(const Point &pt) {
+	_thumbFocused = thumbContains(pt);
+	if (_thumbFocused)
+		return true;
+	else
+		return containsPt(pt);
+}
+
+bool CPetSlider::resetThumbFocus() {
+	bool result = _thumbFocused;
+	_thumbFocused = false;
+	return result;
+}
+
+bool CPetSlider::MouseDragMoveMsg(const Point &pt) {
+	int newOffset = calcSliderOffset(pt);
+	setOffsetPixels(newOffset);
+	return true;
+}
+
+bool CPetSlider::MouseButtonUpMsg(const Point &pt) {
+	if (thumbContains(pt))
+		return true;
+	if (!containsPt(pt))
+		return false;
+
+	int newOffset = calcSliderOffset(pt);
+	setOffsetPixels(newOffset);
+	return true;
+}
+
+bool CPetSlider::contains(const Point &pt) const {
+	return thumbContains(pt) || containsPt(pt);
+}
+
+double CPetSlider::getOffsetPixels() const {
+	int maxVal = 0, minVal = 0;
+	if (_orientation & ORIENTATION_HORIZONTAL) {
+		maxVal = _slidingRect.right;
+		minVal = _slidingRect.left;
+	}
+
+	if (_orientation & ORIENTATION_VERTICAL) {
+		maxVal = _slidingRect.bottom;
+		minVal = _slidingRect.top;
+	}
+
+	if (minVal == maxVal)
+		return 0.0;
+
+	return _sliderOffset / (maxVal - minVal);
+}
+
+void CPetSlider::setSliderOffset(double offset) {
+	if (_orientation & ORIENTATION_HORIZONTAL)
+		_sliderOffset = (int)(offset * (_slidingRect.right - _slidingRect.left));
+
+	if (_orientation & ORIENTATION_VERTICAL)
+		_sliderOffset = (int)(offset * (_slidingRect.bottom - _slidingRect.top));
+}
+
+void CPetSlider::setOffsetPixels(int offset) {
+	// Add the slider's old position to the dirty area
+	Rect tempRect = getThumbRect();
+	_dirtyArea.combine(tempRect);
+
+	// Set the new offset
+	_sliderOffset = offset;
+
+	// Add the thumb's new location to the dirty area
+	tempRect = getThumbRect();
+	_dirtyArea.combine(tempRect);
+}
+
+Point CPetSlider::getBackgroundDrawPos() {
+	return Point(_bounds.left, _bounds.top);
+}
+
+Point CPetSlider::getThumbDrawPos() {
+	Point thumbPos = getThumbCentroidPos();
+	thumbPos -= Point(_thumbWidth / 2, _thumbHeight / 2);
+	return thumbPos;
+}
+
+Point CPetSlider::getThumbCentroidPos() const {
+	Point pt;
+
+	if (_orientation & ORIENTATION_HORIZONTAL) {
+		pt = Point(_slidingRect.left + _sliderOffset,
+			_slidingRect.top + _slidingRect.height() / 2);
+	}
+
+	if (_orientation & ORIENTATION_VERTICAL) {
+		pt = Point(_slidingRect.left + _slidingRect.width() / 2,
+			_slidingRect.top + _sliderOffset);
+	}
+
+	return pt;
+}
+
+bool CPetSlider::thumbContains(const Point &pt) const {
+	return getThumbRect().contains(pt);
+}
+
+Rect CPetSlider::getThumbRect() const {
+	Rect thumbRect(0, 0, _thumbWidth, _thumbHeight);
+	Point centroid = getThumbCentroidPos();
+	thumbRect.moveTo(centroid.x - _thumbWidth / 2, centroid.y - _thumbHeight / 2);
+
+	return thumbRect;
+}
+
+int CPetSlider::calcSliderOffset(const Point &pt) const {
+	int result = 0;
+
+	if (_orientation & ORIENTATION_HORIZONTAL) {
+		result = CLIP(pt.x, _slidingRect.left, _slidingRect.right) - _slidingRect.left;
+	}
+
+	if (_orientation & ORIENTATION_VERTICAL) {
+		result = CLIP(pt.y, _slidingRect.top, _slidingRect.bottom) - _slidingRect.top;
+	}
+
+	return result;
+}
+
+void CPetSlider::setOrientation(SliderOrientation orientation) {
+	_orientation |= orientation;
+}
+
+void CPetSlider::stepPosition(int direction) {
+	double val = getOffsetPixels();
+
+	if (direction == -1) {
+		val = MAX<double>(val - 0.1, 0.0);
+	} else if (direction == 1) {
+		val = MIN<double>(val + 0.1, 1.0);
+	}
+
+	setSliderOffset(val);
+}
+
+/*------------------------------------------------------------------------*/
+
+void CPetSoundSlider::setupBackground(const CString &name, CPetControl *petControl) {
+	if (petControl) {
+		_background = petControl->getHiddenObject(name);
+	}
+}
+
+void CPetSoundSlider::setupThumb(const CString &name, CPetControl *petControl) {
+	if (petControl) {
+		_thumb = petControl->getHiddenObject(name);
+	}
+}
+
+void CPetSoundSlider::setupBackground2(const CString &name, CPetControl *petControl) {
+	if (petControl) {
+		CString numStr = "3";
+		int mode = petControl->getPassengerClass();
+		if (mode <= 3) {
+			numStr = CString(mode);
+		} else if (mode == 4) {
+			mode = petControl->getPriorClass();
+			if (mode == 1) {
+				numStr = CString(mode);
+			}
+		}
+
+		CString fullName = numStr + name;
+		setupBackground(fullName, petControl);
+	}
+}
+
+void CPetSoundSlider::setupThumb2(const CString &name, CPetControl *petControl) {
+	if (petControl) {
+		CString numStr = "3";
+		int mode = petControl->getPassengerClass();
+		if (mode <= 3) {
+			numStr = CString(mode);
+		} else if (mode == 4) {
+			mode = petControl->getPriorClass();
+			if (mode == 1) {
+				numStr = CString(mode);
+			}
+		}
+
+		CString fullName = numStr + name;
+		setupThumb(fullName, petControl);
+	}
+}
+
+void CPetSoundSlider::draw(CScreenManager *screenManager) {
+	if (_background) {
+		Point pt = getBackgroundDrawPos();
+		_background->draw(screenManager, pt);
+	}
+
+	if (_thumb) {
+		Point pt = getThumbDrawPos();
+		_thumb->draw(screenManager, pt);
+	}
+}
+
+} // End of namespace Titanic