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#include "qpdf_pdftopdf.h"
#include <assert.h>
#include <stdexcept>
PageRect getBoxAsRect(QPDFObjectHandle box) // {{{
{
PageRect ret;
ret.left=box.getArrayItem(0).getNumericValue();
ret.bottom=box.getArrayItem(1).getNumericValue();
ret.right=box.getArrayItem(2).getNumericValue();
ret.top=box.getArrayItem(3).getNumericValue();
ret.width=ret.right-ret.left;
ret.height=ret.top-ret.bottom;
return ret;
}
// }}}
Rotation getRotate(QPDFObjectHandle page) // {{{
{
if (!page.hasKey("/Rotate")) {
return ROT_0;
}
double rot=page.getKey("/Rotate").getNumericValue();
if (rot==90.0) { // CW
return ROT_270; // CCW
} else if (rot==180.0) {
return ROT_180;
} else if (rot==270.0) {
return ROT_90;
} else {
assert(rot==0.0);
}
return ROT_0;
}
// }}}
double getUserUnit(QPDFObjectHandle page) // {{{
{
if (!page.hasKey("/UserUnit")) {
return 1.0;
}
return page.getKey("/UserUnit").getNumericValue();
}
// }}}
QPDFObjectHandle makeRotate(Rotation rot) // {{{
{
switch (rot) {
case ROT_0:
return QPDFObjectHandle::newNull();
case ROT_90: // CCW
return QPDFObjectHandle::newInteger(270); // CW
case ROT_180:
return QPDFObjectHandle::newInteger(180);
case ROT_270:
return QPDFObjectHandle::newInteger(90);
default:
throw std::invalid_argument("Bad rotation");
}
}
// }}}
#include "qpdf_tools.h"
QPDFObjectHandle getRectAsBox(const PageRect &rect) // {{{
{
return makeBox(rect.left,rect.bottom,rect.right,rect.top);
}
// }}}
#include <qpdf/QUtil.hh>
Matrix::Matrix() // {{{
: ctm{1,0,0,1,0,0}
{
}
// }}}
Matrix::Matrix(QPDFObjectHandle ar) // {{{
{
if (ar.getArrayNItems()!=6) {
throw std::runtime_error("Not a ctm matrix");
}
for (int iA=0;iA<6;iA++) {
ctm[iA]=ar.getArrayItem(iA).getNumericValue();
}
}
// }}}
Matrix &Matrix::rotate(Rotation rot) // {{{
{
switch (rot) {
case ROT_0:
break;
case ROT_90:
std::swap(ctm[0],ctm[2]);
std::swap(ctm[1],ctm[3]);
ctm[2]=-ctm[2];
ctm[3]=-ctm[3];
break;
case ROT_180:
ctm[0]=-ctm[0];
ctm[3]=-ctm[3];
break;
case ROT_270:
std::swap(ctm[0],ctm[2]);
std::swap(ctm[1],ctm[3]);
ctm[0]=-ctm[0];
ctm[1]=-ctm[1];
break;
default:
assert(0);
}
return *this;
}
// }}}
// TODO: test
Matrix &Matrix::rotate_move(Rotation rot,double width,double height) // {{{
{
rotate(rot);
switch (rot) {
case ROT_0:
break;
case ROT_90:
translate(width,0);
break;
case ROT_180:
translate(width,height);
break;
case ROT_270:
translate(0,height);
break;
}
return *this;
}
// }}}
Matrix &Matrix::rotate(double rad) // {{{
{
Matrix tmp;
tmp.ctm[0]=cos(rad);
tmp.ctm[1]=sin(rad);
tmp.ctm[2]=-sin(rad);
tmp.ctm[3]=cos(rad);
return (*this*=tmp);
}
// }}}
Matrix &Matrix::translate(double tx,double ty) // {{{
{
ctm[4]+=ctm[0]*tx+ctm[2]*ty;
ctm[5]+=ctm[1]*tx+ctm[3]*ty;
return *this;
}
// }}}
Matrix &Matrix::scale(double sx,double sy) // {{{
{
ctm[0]*=sx;
ctm[1]*=sx;
ctm[2]*=sy;
ctm[3]*=sy;
return *this;
}
// }}}
Matrix &Matrix::operator*=(const Matrix &rhs) // {{{
{
double tmp[6];
std::copy(ctm,ctm+6,tmp);
ctm[0] = tmp[0]*rhs.ctm[0] + tmp[2]*rhs.ctm[1];
ctm[1] = tmp[1]*rhs.ctm[0] + tmp[3]*rhs.ctm[1];
ctm[2] = tmp[0]*rhs.ctm[2] + tmp[2]*rhs.ctm[3];
ctm[3] = tmp[1]*rhs.ctm[2] + tmp[3]*rhs.ctm[3];
ctm[4] = tmp[0]*rhs.ctm[4] + tmp[2]*rhs.ctm[5] + tmp[4];
ctm[5] = tmp[1]*rhs.ctm[4] + tmp[3]*rhs.ctm[5] + tmp[5];
return *this;
}
// }}}
QPDFObjectHandle Matrix::get() const // {{{
{
QPDFObjectHandle ret=QPDFObjectHandle::newArray();
ret.appendItem(QPDFObjectHandle::newReal(ctm[0]));
ret.appendItem(QPDFObjectHandle::newReal(ctm[1]));
ret.appendItem(QPDFObjectHandle::newReal(ctm[2]));
ret.appendItem(QPDFObjectHandle::newReal(ctm[3]));
ret.appendItem(QPDFObjectHandle::newReal(ctm[4]));
ret.appendItem(QPDFObjectHandle::newReal(ctm[5]));
return ret;
}
// }}}
std::string Matrix::get_string() const // {{{
{
std::string ret;
ret.append(QUtil::double_to_string(ctm[0]));
ret.append(" ");
ret.append(QUtil::double_to_string(ctm[1]));
ret.append(" ");
ret.append(QUtil::double_to_string(ctm[2]));
ret.append(" ");
ret.append(QUtil::double_to_string(ctm[3]));
ret.append(" ");
ret.append(QUtil::double_to_string(ctm[4]));
ret.append(" ");
ret.append(QUtil::double_to_string(ctm[5]));
return ret;
}
// }}}
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