3bfa549e8b
- using std::string; - using std::wstring; - using std::ostream; - using std::istream; - using std::iostream; - using std::ostrstream; - using std::istrstream; - using std::fstream;
186 lines
4.9 KiB
C++
186 lines
4.9 KiB
C++
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#include "toonz/tcamera.h"
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#include "toonz/stage.h"
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#include "tstream.h"
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#include "texception.h"
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//=============================================================================
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// TCamera
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TCamera::TCamera()
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: m_size(12, 9), m_res(768, 576), m_xPrevalence(true)
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{
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}
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//-------------------------------------------------------------------
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void TCamera::setSize(const TDimensionD &size, bool preserveDpi, bool preserveAR)
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{
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double currAR = getAspectRatio();
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TPointD currDpi = getDpi();
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m_size.lx = size.lx;
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if (preserveAR)
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m_size.ly = m_size.lx / currAR; //WARNING! if also preserveDpi==true, the AR could lose precision...
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else
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m_size.ly = size.ly;
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if (!preserveDpi)
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return;
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m_res.lx = troundp(currDpi.x * m_size.lx);
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m_res.ly = troundp(currDpi.y * m_size.ly);
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m_size.lx = m_res.lx / currDpi.x;
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if (preserveAR) //&& currDpi.x==currDpi.y)
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{
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double aux = m_size.lx / currAR - m_res.ly / currDpi.y;
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m_size.ly = m_size.lx / currAR;
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} else
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m_size.ly = m_res.ly / currDpi.y;
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}
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//-------------------------------------------------------------------
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double TCamera::getAspectRatio() const
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{
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return m_size.lx / m_size.ly;
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}
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//-------------------------------------------------------------------
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void TCamera::setRes(const TDimension &res)
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{
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assert(res.lx > 0);
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assert(res.ly > 0);
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if (m_res != res) {
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m_res = res;
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m_interestRect = TRect();
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}
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}
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//-------------------------------------------------------------------
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TPointD TCamera::getDpi() const
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{
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TPointD dpi;
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if (m_size.lx > 0 && m_size.ly > 0) {
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dpi.x = m_res.lx / m_size.lx;
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dpi.y = m_res.ly / m_size.ly;
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}
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return dpi;
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}
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//-------------------------------------------------------------------
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bool TCamera::isPixelSquared() const
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{
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return areAlmostEqual(m_res.lx * m_size.ly, m_res.ly * m_size.lx);
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}
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//-------------------------------------------------------------------
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TAffine TCamera::getStageToCameraRef() const
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{
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return TAffine(
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m_res.lx / (Stage::inch * m_size.lx), 0, 0.5 * m_res.lx,
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0, m_res.ly / (Stage::inch * m_size.ly), 0.5 * m_res.ly);
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}
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//-------------------------------------------------------------------
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TAffine TCamera::getCameraToStageRef() const
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{
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const double factor = Stage::inch;
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TDimensionD cameraSize = getSize();
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cameraSize.lx *= factor;
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cameraSize.ly *= factor;
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TPointD center(0.5 * cameraSize.lx, 0.5 * cameraSize.ly);
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return TAffine(
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factor * m_size.lx / (double)m_res.lx, 0, -center.x,
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0, factor * m_size.ly / (double)m_res.ly, -center.y);
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}
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//-------------------------------------------------------------------
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TRectD TCamera::getStageRect() const
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{
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TDimensionD cameraSize = getSize();
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const double factor = Stage::inch;
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cameraSize.lx *= factor;
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cameraSize.ly *= factor;
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TRectD rect(cameraSize);
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rect -= 0.5 * (rect.getP00() + rect.getP11());
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return rect;
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}
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//-------------------------------------------------------------------
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void TCamera::setInterestRect(const TRect &rect)
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{
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//Not using the TRect's common intersection. Unfortunately, in case
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//the rect's coordinates have lx or ly < 0, the intersection returns
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//the default (empty) rect. We want to maintain the coordinates instead.
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//m_interestRect = rect * TRect(m_res);
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m_interestRect.x0 = tmax(rect.x0, 0);
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m_interestRect.y0 = tmax(rect.y0, 0);
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m_interestRect.x1 = tmin(rect.x1, m_res.lx - 1);
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m_interestRect.y1 = tmin(rect.y1, m_res.ly - 1);
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}
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//-------------------------------------------------------------------
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TRectD TCamera::getInterestStageRect() const
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{
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return getCameraToStageRef() * TRectD(m_interestRect.x0, m_interestRect.y0, m_interestRect.x1 + 1, m_interestRect.y1 + 1);
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}
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//-------------------------------------------------------------------
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void TCamera::setInterestStageRect(const TRectD &rect)
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{
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TRectD cameraInterestRectD(
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getStageToCameraRef() * rect);
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setInterestRect(TRect(
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tfloor(cameraInterestRectD.x0),
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tfloor(cameraInterestRectD.y0),
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tceil(cameraInterestRectD.x1) - 1,
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tceil(cameraInterestRectD.y1) - 1));
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}
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//-------------------------------------------------------------------
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void TCamera::saveData(TOStream &os) const
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{
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os.child("cameraSize") << m_size.lx << m_size.ly;
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os.child("cameraRes") << m_res.lx << m_res.ly;
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os.child("cameraXPrevalence") << (int)m_xPrevalence;
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os.child("interestRect") << m_interestRect.x0 << m_interestRect.y0 << m_interestRect.x1 << m_interestRect.y1;
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}
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//-------------------------------------------------------------------
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void TCamera::loadData(TIStream &is)
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{
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std::string tagName;
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while (is.matchTag(tagName)) {
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if (tagName == "cameraSize" || tagName == "size")
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is >> m_size.lx >> m_size.ly;
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else if (tagName == "cameraRes" || tagName == "res")
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is >> m_res.lx >> m_res.ly;
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else if (tagName == "cameraXPrevalence") {
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int xPrevalence;
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is >> xPrevalence;
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m_xPrevalence = (bool)xPrevalence;
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} else if (tagName == "interestRect") {
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is >> m_interestRect.x0 >> m_interestRect.y0 >> m_interestRect.x1 >> m_interestRect.y1;
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} else
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throw TException("TCamera::loadData. unexpected tag: " + tagName);
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is.matchEndTag();
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}
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}
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