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569 lines
14 KiB
C++
569 lines
14 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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* Additional copyright for this file:
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* Copyright (C) 1995-1997 Presto Studios, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "common/macresman.h"
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#include "common/stream.h"
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#include "pegasus/elements.h"
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#include "pegasus/graphics.h"
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#include "pegasus/surface.h"
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namespace Pegasus {
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DisplayElement::DisplayElement(const DisplayElementID id) : IDObject(id) {
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_elementIsDisplaying = false;
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_elementIsVisible = false;
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_elementOrder = 0;
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_triggeredElement = this;
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_nextElement = 0;
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}
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DisplayElement::~DisplayElement() {
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if (isDisplaying())
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((PegasusEngine *)g_engine)->_gfx->removeDisplayElement(this);
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}
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void DisplayElement::setDisplayOrder(const DisplayOrder order) {
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if (_elementOrder != order) {
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_elementOrder = order;
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if (isDisplaying()) {
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((PegasusEngine *)g_engine)->_gfx->removeDisplayElement(this);
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((PegasusEngine *)g_engine)->_gfx->addDisplayElement(this);
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triggerRedraw();
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}
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}
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}
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void DisplayElement::startDisplaying() {
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if (!isDisplaying()) {
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((PegasusEngine *)g_engine)->_gfx->addDisplayElement(this);
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triggerRedraw();
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}
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}
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void DisplayElement::stopDisplaying() {
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if (isDisplaying()) {
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triggerRedraw();
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((PegasusEngine *)g_engine)->_gfx->removeDisplayElement(this);
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}
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}
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void DisplayElement::setBounds(const CoordType left, const CoordType top, const CoordType right, const CoordType bottom) {
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setBounds(Common::Rect(left, top, right, bottom));
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}
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void DisplayElement::getBounds(Common::Rect &r) const {
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r = _bounds;
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}
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void DisplayElement::sizeElement(const CoordType h, const CoordType v) {
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Common::Rect newBounds = _bounds;
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newBounds.right = _bounds.left + h;
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newBounds.bottom = _bounds.top + v;
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setBounds(newBounds);
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}
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void DisplayElement::moveElementTo(const CoordType h, const CoordType v) {
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Common::Rect newBounds = _bounds;
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newBounds.moveTo(h, v);
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setBounds(newBounds);
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}
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void DisplayElement::moveElement(const CoordType dh, const CoordType dv) {
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Common::Rect newBounds = _bounds;
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newBounds.translate(dh, dv);
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setBounds(newBounds);
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}
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void DisplayElement::getLocation(CoordType &h, CoordType &v) const {
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h = _bounds.left;
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v = _bounds.top;
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}
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void DisplayElement::centerElementAt(const CoordType h, const CoordType v) {
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Common::Rect newBounds = _bounds;
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newBounds.moveTo(h - (_bounds.width() / 2), v - (_bounds.height() / 2));
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setBounds(newBounds);
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}
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void DisplayElement::getCenter(CoordType &h, CoordType &v) const {
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h = (_bounds.left + _bounds.right) / 2;
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v = (_bounds.top + _bounds.bottom) / 2;
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}
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void DisplayElement::setBounds(const Common::Rect &r) {
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if (r != _bounds) {
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triggerRedraw();
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_bounds = r;
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triggerRedraw();
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}
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}
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void DisplayElement::hide() {
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if (_elementIsVisible) {
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triggerRedraw();
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_elementIsVisible = false;
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}
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}
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void DisplayElement::show() {
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if (!_elementIsVisible) {
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_elementIsVisible = true;
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triggerRedraw();
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}
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}
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// Only invalidates this element's bounding rectangle if all these conditions are true:
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// -- The triggered element is this element.
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// -- The element is displaying on the display list.
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// -- The element is visible.
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// -- The element is part of the active layer OR is one of the reserved items.
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void DisplayElement::triggerRedraw() {
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GraphicsManager *gfx = ((PegasusEngine *)g_engine)->_gfx;
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if (_triggeredElement == this) {
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if (validToDraw(gfx->getBackOfActiveLayer(), gfx->getFrontOfActiveLayer()))
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gfx->invalRect(_bounds);
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} else {
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_triggeredElement->triggerRedraw();
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}
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}
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void DisplayElement::setTriggeredElement(DisplayElement *element) {
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if (element)
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_triggeredElement = element;
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else
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_triggeredElement = this;
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}
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bool DisplayElement::validToDraw(DisplayOrder backLayer, DisplayOrder frontLayer) {
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return isDisplaying() && _elementIsVisible &&
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(getObjectID() <= kHighestReservedElementID ||
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(getDisplayOrder() >= backLayer &&
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getDisplayOrder() <= frontLayer));
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}
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DropHighlight::DropHighlight(const DisplayElementID id) : DisplayElement(id) {
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_highlightColor = 0;
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_thickness = 2;
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_cornerDiameter = 0;
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}
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void DropHighlight::draw(const Common::Rect &) {
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Graphics::Surface *screen = ((PegasusEngine *)g_engine)->_gfx->getWorkArea();
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// Since this is only used in two different ways, I'm only
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// going to implement it in those two ways. Deal with it.
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Common::Rect rect = _bounds;
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rect.grow(-_thickness);
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screen->frameRect(rect, _highlightColor);
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rect.grow(1);
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screen->frameRect(rect, _highlightColor);
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if (_cornerDiameter == 8 && _thickness == 4) {
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rect.grow(1);
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screen->frameRect(rect, _highlightColor);
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screen->hLine(rect.left + 1, rect.top - 1, rect.right - 2, _highlightColor);
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screen->hLine(rect.left + 1, rect.bottom, rect.right - 2, _highlightColor);
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screen->vLine(rect.left - 1, rect.top + 1, rect.bottom - 2, _highlightColor);
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screen->vLine(rect.right, rect.top + 1, rect.bottom - 2, _highlightColor);
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}
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}
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IdlerAnimation::IdlerAnimation(const DisplayElementID id) : Animation(id) {
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_lastTime = 0xffffffff;
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}
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void IdlerAnimation::startDisplaying() {
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if (!isDisplaying()) {
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Animation::startDisplaying();
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startIdling();
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}
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}
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void IdlerAnimation::stopDisplaying() {
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if (isDisplaying()) {
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Animation::stopDisplaying();
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stopIdling();
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}
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}
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void IdlerAnimation::useIdleTime() {
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uint32 currentTime = getTime();
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if (currentTime != _lastTime) {
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_lastTime = currentTime;
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timeChanged(_lastTime);
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}
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}
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void IdlerAnimation::timeChanged(const TimeValue) {
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triggerRedraw();
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}
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FrameSequence::FrameSequence(const DisplayElementID id) : IdlerAnimation(id) {
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_duration = 0;
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_currentFrameNum = 0;
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_resFork = new Common::MacResManager();
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_numFrames = 0;
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}
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FrameSequence::~FrameSequence() {
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delete _resFork;
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}
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void FrameSequence::useFileName(const Common::String &fileName) {
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_resFork->open(fileName);
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}
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void FrameSequence::openFrameSequence() {
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if (!_resFork->hasResFork())
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return;
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Common::SeekableReadStream *res = _resFork->getResource(MKTAG('P', 'F', 'r', 'm'), 0x80);
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if (!res)
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return;
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uint32 scale = res->readUint32BE();
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_bounds.top = res->readUint16BE();
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_bounds.left = res->readUint16BE();
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_bounds.bottom = res->readUint16BE();
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_bounds.right = res->readUint16BE();
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_numFrames = res->readUint16BE();
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_duration = 0;
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_frameTimes.clear();
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for (uint32 i = 0; i < _numFrames; i++) {
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TimeValue time = res->readUint32BE();
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_duration += time;
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_frameTimes.push_back(_duration);
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}
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setScale(scale);
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setSegment(0, _duration);
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setTime(0);
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_currentFrameNum = 0;
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newFrame(_currentFrameNum);
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triggerRedraw();
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delete res;
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}
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void FrameSequence::closeFrameSequence() {
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stop();
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_resFork->close();
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_duration = 0;
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_numFrames = 0;
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_frameTimes.clear();
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}
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void FrameSequence::timeChanged(const TimeValue time) {
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int16 frameNum = 0;
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for (int16 i = _numFrames - 1; i >= 0; i--) {
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if (_frameTimes[i] < time) {
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frameNum = i;
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break;
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}
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}
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if (frameNum != _currentFrameNum) {
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_currentFrameNum = frameNum;
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newFrame(_currentFrameNum);
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triggerRedraw();
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}
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}
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void FrameSequence::setFrameNum(const int16 frameNum) {
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int16 f = CLIP<int>(frameNum, 0, _numFrames);
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if (_currentFrameNum != f) {
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_currentFrameNum = f;
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setTime(_frameTimes[f]);
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newFrame(f);
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triggerRedraw();
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}
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}
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bool FrameSequence::isSequenceOpen() const {
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return _numFrames != 0;
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}
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Sprite::Sprite(const DisplayElementID id) : DisplayElement(id) {
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_numFrames = 0;
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_currentFrameNum = 0xffffffff;
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_currentFrame = 0;
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}
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Sprite::~Sprite() {
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discardFrames();
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}
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void Sprite::discardFrames() {
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if (!_frameArray.empty()) {
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for (uint32 i = 0; i < _numFrames; i++) {
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SpriteFrame *frame = _frameArray[i].frame;
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frame->_referenceCount--;
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if (frame->_referenceCount == 0)
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delete frame;
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}
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_frameArray.clear();
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_numFrames = 0;
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_currentFrame = 0;
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_currentFrameNum = 0xffffffff;
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setBounds(0, 0, 0, 0);
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}
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}
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void Sprite::addPICTResourceFrame(const ResIDType pictID, bool transparent, const CoordType left, const CoordType top) {
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SpriteFrame *frame = new SpriteFrame();
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frame->initFromPICTResource(((PegasusEngine *)g_engine)->_resFork, pictID, transparent);
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addFrame(frame, left, top);
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}
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uint32 Sprite::addFrame(SpriteFrame *frame, const CoordType left, const CoordType top) {
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SpriteFrameRec frameRecord;
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frameRecord.frame = frame;
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frameRecord.frameLeft = left;
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frameRecord.frameTop = top;
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_frameArray.push_back(frameRecord);
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_numFrames++;
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frame->_referenceCount++;
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Common::Rect frameBounds;
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frame->getSurfaceBounds(frameBounds);
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// 9/3/96
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// BB Should this be + left or - left?
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frameBounds.moveTo(_bounds.left + left, _bounds.top + top);
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frameBounds.extend(_bounds);
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if (_bounds != frameBounds)
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setBounds(frameBounds);
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return _numFrames - 1;
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}
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void Sprite::removeFrame(const uint32 frameNum) {
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_frameArray[frameNum].frame->_referenceCount--;
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if (_frameArray[frameNum].frame->_referenceCount == 0)
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delete _frameArray[frameNum].frame;
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// Calculate the new bounds
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Common::Rect frameBounds;
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for (uint32 i = 0; i < _numFrames; i++) {
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if (i == frameNum)
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continue;
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Common::Rect r;
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_frameArray[i].frame->getSurfaceBounds(r);
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r.translate(_frameArray[i].frameLeft, _frameArray[i].frameTop);
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frameBounds.extend(r);
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}
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_frameArray.remove_at(frameNum);
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frameBounds.moveTo(_bounds.left, _bounds.top);
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setBounds(frameBounds);
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if (_currentFrameNum == frameNum)
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triggerRedraw();
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else if (_currentFrameNum != 0xffffffff && _currentFrameNum > frameNum)
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--_currentFrameNum;
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}
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void Sprite::setCurrentFrameIndex(const int32 frameNum) {
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if (frameNum < 0) {
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if (_currentFrameNum != 0xffffffff) {
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_currentFrameNum = 0xffffffff;
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_currentFrame = 0;
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triggerRedraw();
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}
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} else if (_numFrames > 0) {
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uint32 f = frameNum % _numFrames;
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if (f != _currentFrameNum) {
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_currentFrameNum = f;
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_currentFrame = &_frameArray[f];
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triggerRedraw();
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}
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}
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}
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SpriteFrame *Sprite::getFrame(const int32 index) {
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if (index < 0 || (uint32)index >= _numFrames)
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return 0;
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return _frameArray[index].frame;
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}
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void Sprite::draw(const Common::Rect &r) {
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if (_currentFrame) {
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Common::Rect frameBounds;
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_currentFrame->frame->getSurfaceBounds(frameBounds);
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frameBounds.translate(_bounds.left + _currentFrame->frameLeft, _bounds.top + _currentFrame->frameTop);
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Common::Rect r1 = frameBounds.findIntersectingRect(r);
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Common::Rect r2 = frameBounds;
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r2.translate(-_bounds.left - _currentFrame->frameLeft, -_bounds.top - _currentFrame->frameTop);
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_currentFrame->frame->drawImage(r2, r1);
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}
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}
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SpriteSequence::SpriteSequence(const DisplayElementID id, const DisplayElementID spriteID) :
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FrameSequence(id), _sprite(spriteID), _transparent(false) {
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}
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void SpriteSequence::openFrameSequence() {
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if (!isSequenceOpen()) {
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FrameSequence::openFrameSequence();
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if (isSequenceOpen()) {
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uint32 numFrames = getNumFrames();
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for (uint32 i = 0; i < numFrames; ++i) {
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SpriteFrame *frame = new SpriteFrame();
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frame->initFromPICTResource(_resFork, i + 0x80, _transparent);
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_sprite.addFrame(frame, 0, 0);
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}
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_sprite.setBounds(_bounds);
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}
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}
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}
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void SpriteSequence::closeFrameSequence() {
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if (isSequenceOpen()) {
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FrameSequence::closeFrameSequence();
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_sprite.discardFrames();
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}
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}
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void SpriteSequence::setBounds(const Common::Rect &bounds) {
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FrameSequence::setBounds(bounds);
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_sprite.setBounds(_bounds);
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}
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void SpriteSequence::draw(const Common::Rect &r) {
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_sprite.draw(r);
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}
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void SpriteSequence::newFrame(const uint16 frame) {
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_sprite.setCurrentFrameIndex(frame);
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}
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#define DRAW_PIXEL() \
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if (bytesPerPixel == 2) \
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*((uint16 *)dst) = black; \
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else \
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*((uint32 *)dst) = black; \
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dst += bytesPerPixel
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#define SKIP_PIXEL() \
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dst += bytesPerPixel
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void ScreenDimmer::draw(const Common::Rect &r) {
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// We're going to emulate QuickDraw's srcOr+gray mode here
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// In this mode, every other y column is all black (odd-columns).
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// Basically, every row does three black and then one transparent
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// repeatedly.
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// The output is identical to the original
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uint32 black = g_system->getScreenFormat().RGBToColor(0, 0, 0);
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Graphics::Surface *screen = ((PegasusEngine *)g_engine)->_gfx->getWorkArea();
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byte bytesPerPixel = g_system->getScreenFormat().bytesPerPixel;
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// We're currently doing it to the whole screen to simplify the code
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for (int y = 0; y < 480; y++) {
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byte *dst = (byte *)screen->getBasePtr(0, y);
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for (int x = 0; x < 640; x += 4) {
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if (y & 1) {
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DRAW_PIXEL();
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DRAW_PIXEL();
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SKIP_PIXEL();
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DRAW_PIXEL();
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} else {
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SKIP_PIXEL();
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DRAW_PIXEL();
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DRAW_PIXEL();
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DRAW_PIXEL();
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}
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}
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}
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}
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#undef DRAW_PIXEL
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#undef SKIP_PIXEL
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SoundLevel::SoundLevel(const DisplayElementID id) : DisplayElement(id) {
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_soundLevel = 0;
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}
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|
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void SoundLevel::incrementLevel() {
|
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if (_soundLevel < 12) {
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_soundLevel++;
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triggerRedraw();
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}
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}
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|
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void SoundLevel::decrementLevel() {
|
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if (_soundLevel > 0) {
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_soundLevel--;
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triggerRedraw();
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}
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}
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|
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uint16 SoundLevel::getSoundLevel() {
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return CLIP<int>(_soundLevel * 22, 0, 256);
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}
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|
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void SoundLevel::setSoundLevel(uint16 level) {
|
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uint16 newLevel = (level + 21) / 22;
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|
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if (newLevel != _soundLevel) {
|
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_soundLevel = newLevel;
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triggerRedraw();
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}
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}
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void SoundLevel::draw(const Common::Rect &r) {
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Common::Rect levelRect(_bounds.right + (8 * (_soundLevel - 12)), _bounds.top, _bounds.right, _bounds.bottom);
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levelRect = r.findIntersectingRect(levelRect);
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if (!levelRect.isEmpty()) {
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Graphics::Surface *screen = ((PegasusEngine *)g_engine)->_gfx->getWorkArea();
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screen->fillRect(levelRect, g_system->getScreenFormat().RGBToColor(0, 0, 0));
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}
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}
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} // End of namespace Pegasus
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