| PrintBigFigureOperation [message #53366] |
Fri, 10 January 2003 09:16  |
Eclipse User |
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Originally posted by: sven.e-sven.net
Already posted it in another thread. I'd like to get some feedback on
it. I think the translating of the figure and it's childs is not the
best way to do this, but it works.
Sven\ 8)
PS: The Question Window in the run method doesn't belong there. Is there
a way to display the number of pages in the PrintDialog?
------------------
import java.util.List;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.PrintFigureOperation;
import org.eclipse.draw2d.PrinterGraphics;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.printing.Printer;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.PlatformUI;
/**
* Druckt eine IFigure über mehrere Seiten.
* @author Sven Müller
*/
public class PrintBigFigureOperation extends PrintFigureOperation {
private double scale;
public PrintBigFigureOperation(Printer printer, IFigure figure) {
super(printer, figure);
scale = getPrinter().getDPI().x / Display.getDefault().getDPI().x;
}
/**
* @see org.eclipse.draw2d.PrintOperation#printPages()
*/
protected void printPages() {
IFigure figure = getPrintSource();
boolean nextPage = true;
Point offset = figure.getBounds().getLocation().getCopy();
int x =
(int) (figure.getBounds().getSize().width
/ (getPrintRegion().width / scale));
int y =
(int) (figure.getBounds().getSize().height
/ (getPrintRegion().height / scale));
int memX1 = x;
int memX2 = offset.x;
PrinterGraphics g = getFreshPrinterGraphics();
List childs = figure.getChildren();
while (nextPage) {
g.pushState();
getPrinter().startPage();
g.setForegroundColor(figure.getForegroundColor());
g.setBackgroundColor(figure.getBackgroundColor());
g.setFont(figure.getFont());
g.scale(scale);
figure.translate(offset.x, offset.y);
for (int i = 0; i < childs.size(); i++)
((IFigure) childs.get(i)).translate(-offset.x, -offset.y);
g.translate(figure.getBounds().getLocation().getCopy().negat e());
g.clipRect(figure.getBounds());
figure.paint(g);
getPrinter().endPage();
g.restoreState();
if (x > 0) {
x--;
offset.x = (int) (getPrintRegion().width / scale);
} else if (y > 0) {
y--;
x = memX1;
figure.translate(-x * offset.x, 0);
for (int i = 0; i < childs.size(); i++)
((IFigure) childs.get(i)).translate(x * offset.x, 0);
offset.x = memX2;
offset.y = (int) (getPrintRegion().height / scale);
} else {
nextPage = false;
}
}
}
/**
* @see org.eclipse.draw2d.PrintOperation#run(String)
*/
public void run(String jobName) {
if (MessageDialog
.openQuestion(
PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShel l(),
"Question...",
"Really print "
+ getNumofPages()
+ " pages on "
+ getPrinter().getPrinterData().name
+ "?"))
super.run(jobName);
}
private int getNumofPages() {
double x =
getPrintSource().getBounds().getSize().width
/ (getPrintRegion().width / scale);
double y =
getPrintSource().getBounds().getSize().height
/ (getPrintRegion().height / scale);
return (int)
(((x > (int) x) ? (int) x + 1 : (int) x)
* ((y > (int) y) ? (int) y + 1 : (int) y));
}
}
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| Re: PrintBigFigureOperation [message #53499 is a reply to message #53473] |
Fri, 10 January 2003 11:11  |
| Eclipse User |
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Originally posted by: sven.e-sven.net
You are right it's easier and faster to simply translate the PG.
Why move the world beneath your feet if walking is so easy? ;)
Sven\ 8)
Here's a better impl.:
------------
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.PrintFigureOperation;
import org.eclipse.draw2d.PrinterGraphics;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.printing.Printer;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.PlatformUI;
/**
* Druckt eine IFigure über mehrere Seiten.
* @author Sven Müller
*/
public class PrintBigFigureOperation extends PrintFigureOperation {
private double scale;
public PrintBigFigureOperation(Printer printer, IFigure figure) {
super(printer, figure);
scale = getPrinter().getDPI().x / Display.getDefault().getDPI().x;
}
/**
* @see org.eclipse.draw2d.PrintOperation#printPages()
*/
protected void printPages() {
IFigure figure = getPrintSource();
boolean nextPage = true;
Point offset = figure.getBounds().getLocation();
int x =
(int) (getPrintSource().getBounds().getSize().width
/ (getPrintRegion().width / scale));
int y =
(int) (getPrintSource().getBounds().getSize().height
/ (getPrintRegion().height / scale));
PrinterGraphics g = getFreshPrinterGraphics();
g.setForegroundColor(figure.getForegroundColor());
g.setBackgroundColor(figure.getBackgroundColor());
g.setFont(figure.getFont());
for (int i = 0; i < getNumofPages(); i++) {
g.pushState();
getPrinter().startPage();
g.scale(scale);
g.translate(-offset.x, -offset.y);
g.clipRect(figure.getBounds());
figure.paint(g);
getPrinter().endPage();
g.restoreState();
if (x > 0) {
x--;
offset.x += (int) (getPrintRegion().width / scale);
} else if (y > 0) {
y--;
offset.y += (int) (getPrintRegion().height / scale);
offset.x = figure.getBounds().getLocation().x;
x =
(int) (getPrintSource().getBounds().getSize().width
/ (getPrintRegion().width / scale));
}
}
}
/**
* @see org.eclipse.draw2d.PrintOperation#run(String)
*/
public void run(String jobName) {
if (MessageDialog
.openQuestion(
PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShel l(),
"Question...",
"Really print "
+ getNumofPages()
+ " pages on "
+ getPrinter().getPrinterData().name
+ "?"))
super.run(jobName);
}
/**
* Berechnet die Seiten die nötig sind um die {@link IFigure IFigure}
auf dem gewählten {@link Printer Printer} auszugeben
* @return int
*/
private int getNumofPages() {
double x =
getPrintSource().getBounds().getSize().width
/ (getPrintRegion().width / scale);
double y =
getPrintSource().getBounds().getSize().height
/ (getPrintRegion().height / scale);
return ((x > (int) x) ? (int) x + 1 : (int) x)
* ((y > (int) y) ? (int) y + 1 : (int) y);
}
}
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