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#include <iostream.h>
#include <math.h>
#include <qwidget.h>
#include <qpainter.h>
#include <qprinter.h>
#include <qpaintdevicemetrics.h>
#include <qpointarray.h>
#include <qrect.h>
#include <qpixmap.h>
#include "paintable.h"
#include "render2d.h"
#include "chemdata.h"
#include "defs.h"
void Render2D::PrintSetup() {
printer = new QPrinter;
// the following statement is needed for Qt 3.0 or higher
#if QT_VERSION >= 300
printer->setResolution(100); // for convenient calculation of line length
#endif
printer->setFullPage(true);
printer->setPageSize(QPrinter::Letter);
printer->setOrientation(QPrinter::Portrait);
printer->setColorMode(QPrinter::GrayScale);
}
void Render2D::UpdatePageGeometry() {
if (page_orientation == PAGE_PORTRAIT) {
printer->setOrientation(QPrinter::Portrait);
switch (page_size) {
case PAGE_LETTER:
printer->setPageSize(QPrinter::Letter);
renderHeight = 1000;
renderWidth = 750;
break;
case PAGE_LEGAL:
printer->setPageSize(QPrinter::Legal);
renderHeight = 1300;
renderWidth = 750;
break;
case PAGE_A4:
printer->setPageSize(QPrinter::A4);
renderHeight = 1070;
renderWidth = 776;
break;
case PAGE_640:
renderWidth = 640;
renderWidth = 480;
break;
case PAGE_800:
renderWidth = 800;
renderWidth = 600;
break;
case PAGE_1024:
renderWidth = 1024;
renderWidth = 768;
break;
default:
break;
}
} else { // page_orientation == PAGE_LANDSCAPE
printer->setOrientation(QPrinter::Landscape);
switch (page_size) {
case PAGE_LETTER:
printer->setPageSize(QPrinter::Letter);
renderHeight = 750;
renderWidth = 1000;
break;
case PAGE_LEGAL:
printer->setPageSize(QPrinter::Legal);
renderHeight = 750;
renderWidth = 1300;
break;
case PAGE_A4:
printer->setPageSize(QPrinter::A4);
renderHeight = 776;
renderWidth = 1070;
break;
case PAGE_640:
renderWidth = 640;
renderWidth = 480;
break;
case PAGE_800:
renderWidth = 800;
renderWidth = 600;
break;
case PAGE_1024:
renderWidth = 1024;
renderWidth = 768;
break;
default:
break;
}
}
resize(renderWidth, renderHeight);
}
void Render2D::Print() {
if (!printer->setup(this)) {
emit SignalSetStatusBar( QString("Printing canceled.") );
return;
}
//QPaintDeviceMetrics pm(printer);
c->DeselectAll();
// set output device
outputDevice = OUTPUT_PRINTER;
// render all objects
paintqueue.clear();
repaint();
QPainter p(printer);
Paintable *tmp_paint;
for (tmp_paint = paintqueue.first(); tmp_paint != NULL;
tmp_paint = paintqueue.next()) {
QPoint a = tmp_paint->a;
QPoint b = tmp_paint->b;
QColor c1 = tmp_paint->c;
if (tmp_paint->op == OP_LINE) {
if (tmp_paint->s == 0)
p.setPen(tmp_paint->c);
if (tmp_paint->s == 1) // dashed line
p.setPen(QPen(tmp_paint->c,0,DotLine));
p.drawLine(tmp_paint->a, tmp_paint->b);
}
if (tmp_paint->op == OP_FILLBOX) {
p.setPen(c1);
p.fillRect(QRect(a, b), c1);
}
if (tmp_paint->op == OP_DASH_LINE) {
p.setPen(QPen(tmp_paint->c,0,DotLine));
p.drawLine(tmp_paint->a, tmp_paint->b);
}
if (tmp_paint->op == OP_TEXT) {
p.setPen(tmp_paint->c);
p.setFont(tmp_paint->f);
p.drawText(tmp_paint->a, tmp_paint->ch);
}
if (tmp_paint->op == OP_CURVE_CW180) {
// calculate curve
p.setPen(tmp_paint->c);
QPoint ce = Midpoint(tmp_paint->a, tmp_paint->b);
int d = RoundOff(DistanceBetween(tmp_paint->a, ce));
double sa = getAngle(ce, tmp_paint->a);
QPointArray pa;
pa.makeArc(ce.x() - d, ce.y() - d, 2*d, 2*d, -sa*16, -2880);
p.drawPolyline(pa);
// calculate arrowhead
// if curve too small, don't draw arrowhead
if (pa.count() == 0) return;
QPoint realb(pa.at(pa.count() - 1));
sa = getAngle(tmp_paint->b, tmp_paint->a);
double newang1 = sa + 60.0;
double newang2 = sa + 120.0;
QPoint a1(realb.x() + (cos(newang1/MOL_ARAD) * 10.0),
realb.y() + (sin(newang1/MOL_ARAD) * 10.0));
QPoint a2(realb.x() + (cos(newang2/MOL_ARAD) * 10.0),
realb.y() + (sin(newang2/MOL_ARAD) * 10.0));
p.drawLine(realb, a1);
p.drawLine(realb, a2);
}
if (tmp_paint->op == OP_CURVE_CCW180) {
// calculate curve
p.setPen(tmp_paint->c);
QPoint ce = Midpoint(tmp_paint->a, tmp_paint->b);
int d = RoundOff(DistanceBetween(tmp_paint->a, ce));
double sa = getAngle(ce, tmp_paint->a);
QPointArray pa;
pa.makeArc(ce.x() - d, ce.y() - d, 2*d, 2*d, -sa*16, 2880);
p.drawPolyline(pa);
// calculate arrowhead
// if curve too small, don't draw arrowhead
if (pa.count() == 0) return;
QPoint realb(pa.at(pa.count() - 1));
sa = getAngle(tmp_paint->b, tmp_paint->a);
double newang1 = sa + 60.0;
double newang2 = sa + 120.0;
QPoint a1(realb.x() + (cos(newang1/MOL_ARAD) * 10.0),
realb.y() + (sin(newang1/MOL_ARAD) * 10.0));
QPoint a2(realb.x() + (cos(newang2/MOL_ARAD) * 10.0),
realb.y() + (sin(newang2/MOL_ARAD) * 10.0));
p.drawLine(realb, a1);
p.drawLine(realb, a2);
}
if (tmp_paint->op == OP_PIXMAP) {
p.drawPixmap(tmp_paint->a, tmp_paint->p);
}
if (tmp_paint->op == OP_CURVE_CW90) {
// first, figure out where middle of circle is
double d1 = DistanceBetween(a, b);
double ia = getAngle(a, b);
d1 = d1 / 1.4142136;
ia = 45.0;
double dx1 = ( (double)b.x() - (double)a.x() ) / 1.4142136;
double dy1 = ( (double)b.y() - (double)a.y() ) / 1.4142136;
// rotate vector (dx1, dy1) 45 degrees clockwise
double ia_rad = ia * M_PI / 180.0;
double dx2 = dx1*cos(ia_rad) - dy1*sin(ia_rad);
double dy2 = dx1*sin(ia_rad) + dy1*cos(ia_rad);
QPoint ce(a.x() + RoundOff(dx2), a.y() + RoundOff(dy2));
double sa = getAngle(ce, a);
QPointArray pa;
int d = RoundOff(d1);
pa.makeArc(ce.x() - d, ce.y() - d, 2*d, 2*d, -sa*16, -1440);
drawPolyline(pa, c1);
// calculate arrowhead
// if curve too small, don't draw arrowhead
if (pa.count() == 0) return;
QPoint realb(pa.at(pa.count() - 1));
sa = getAngle(b, a);
double newang1 = sa + 15.0;
double newang2 = sa + 75.0;
QPoint a1(realb.x() + (cos(newang1/MOL_ARAD) * 10.0),
realb.y() + (sin(newang1/MOL_ARAD) * 10.0));
QPoint a2(realb.x() + (cos(newang2/MOL_ARAD) * 10.0),
realb.y() + (sin(newang2/MOL_ARAD) * 10.0));
drawLine(realb, a1, 1, c1);
drawLine(realb, a2, 1, c1);
}
if (tmp_paint->op == OP_CURVE_CCW90) {
// first, figure out where middle of circle is
double d1 = DistanceBetween(a, b);
double ia = getAngle(a, b);
d1 = d1 / 1.4142136;
ia = -45.0;
double dx1 = ( (double)b.x() - (double)a.x() ) / 1.4142136;
double dy1 = ( (double)b.y() - (double)a.y() ) / 1.4142136;
// rotate vector (dx1, dy1) 45 degrees clockwise
double ia_rad = ia * M_PI / 180.0;
double dx2 = dx1*cos(ia_rad) - dy1*sin(ia_rad);
double dy2 = dx1*sin(ia_rad) + dy1*cos(ia_rad);
QPoint ce(a.x() + RoundOff(dx2), a.y() + RoundOff(dy2));
double sa = getAngle(ce, a);
QPointArray pa;
int d = RoundOff(d1);
pa.makeArc(ce.x() - d, ce.y() - d, 2*d, 2*d, -sa*16, 1440);
drawPolyline(pa, c1);
// calculate arrowhead
// if curve too small, don't draw arrowhead
if (pa.count() == 0) return;
QPoint realb(pa.at(pa.count() - 1));
sa = getAngle(b, a);
double newang1 = sa - 15.0;
double newang2 = sa - 75.0;
QPoint a1(realb.x() + (cos(newang1/MOL_ARAD) * 10.0),
realb.y() + (sin(newang1/MOL_ARAD) * 10.0));
QPoint a2(realb.x() + (cos(newang2/MOL_ARAD) * 10.0),
realb.y() + (sin(newang2/MOL_ARAD) * 10.0));
drawLine(realb, a1, 1, c1);
drawLine(realb, a2, 1, c1);
}
if (tmp_paint->op == OP_CURVE_CW270) {
// first, figure out where middle of circle is
double d1 = DistanceBetween(a, b);
double ia = getAngle(a, b);
d1 = d1 / 1.4142136;
ia = -45.0;
double dx1 = ( (double)b.x() - (double)a.x() ) / 1.4142136;
double dy1 = ( (double)b.y() - (double)a.y() ) / 1.4142136;
// rotate vector (dx1, dy1) 45 degrees clockwise
double ia_rad = ia * M_PI / 180.0;
double dx2 = dx1*cos(ia_rad) - dy1*sin(ia_rad);
double dy2 = dx1*sin(ia_rad) + dy1*cos(ia_rad);
QPoint ce(a.x() + RoundOff(dx2), a.y() + RoundOff(dy2));
double sa = getAngle(ce, a);
QPointArray pa;
int d = RoundOff(d1);
pa.makeArc(ce.x() - d, ce.y() - d, 2*d, 2*d, -sa*16, -4320);
drawPolyline(pa, c1);
// calculate arrowhead
// if curve too small, don't draw arrowhead
if (pa.count() == 0) return;
QPoint realb(pa.at(pa.count() - 1));
sa = getAngle(b, a);
double newang1 = sa + 165.0;
double newang2 = sa + 105.0;
QPoint a1(realb.x() + (cos(newang1/MOL_ARAD) * 10.0),
realb.y() + (sin(newang1/MOL_ARAD) * 10.0));
QPoint a2(realb.x() + (cos(newang2/MOL_ARAD) * 10.0),
realb.y() + (sin(newang2/MOL_ARAD) * 10.0));
drawLine(realb, a1, 1, c1);
drawLine(realb, a2, 1, c1);
}
if (tmp_paint->op == OP_CURVE_CCW270) {
// first, figure out where middle of circle is
double d1 = DistanceBetween(a, b);
double ia = getAngle(a, b);
d1 = d1 / 1.4142136;
ia = 45.0;
double dx1 = ( (double)b.x() - (double)a.x() ) / 1.4142136;
double dy1 = ( (double)b.y() - (double)a.y() ) / 1.4142136;
// rotate vector (dx1, dy1) 45 degrees clockwise
double ia_rad = ia * M_PI / 180.0;
double dx2 = dx1*cos(ia_rad) - dy1*sin(ia_rad);
double dy2 = dx1*sin(ia_rad) + dy1*cos(ia_rad);
QPoint ce(a.x() + RoundOff(dx2), a.y() + RoundOff(dy2));
double sa = getAngle(ce, a);
QPointArray pa;
int d = RoundOff(d1);
pa.makeArc(ce.x() - d, ce.y() - d, 2*d, 2*d, -sa*16, 4320);
drawPolyline(pa, c1);
// calculate arrowhead
// if curve too small, don't draw arrowhead
if (pa.count() == 0) return;
QPoint realb(pa.at(pa.count() - 1));
sa = getAngle(b, a);
double newang1 = sa - 165.0;
double newang2 = sa - 105.0;
QPoint a1(realb.x() + (cos(newang1/MOL_ARAD) * 10.0),
realb.y() + (sin(newang1/MOL_ARAD) * 10.0));
QPoint a2(realb.x() + (cos(newang2/MOL_ARAD) * 10.0),
realb.y() + (sin(newang2/MOL_ARAD) * 10.0));
drawLine(realb, a1, 1, c1);
drawLine(realb, a2, 1, c1);
}
}
// set output to screen
outputDevice = OUTPUT_SCREEN;
repaint();
}
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