OZ++ Sample: CustomScrolledView |
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*
* Copyright (c) 2017 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
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* CustomScrolledView.cpp
*
*****************************************************************************/
#include <oz++/motif/ApplicationView.h>
#include <oz++/motif/CustomScrolledView.h>
#include <oz++/motif/Color.h>
#include <oz++/motif/DC.h>
#include <oz++/motif/RenderTable.h>
namespace OZ {
class MainView : public ApplicationView {
private:
/////////////////////////////////////////////////////////////////
//Inner class starts.
class InnerView :public CustomScrolledView {
private:
Pixmap pixmap;
int pmWidth;
int pmHeight;
void configureNotify(Event& event)
{
XEvent* xe = event.getXEvent();
XConfigureEvent* cev = (XConfigureEvent*)xe;
printf("configureNotify w=%d, h=%d\n", cev->width, cev->height);
BulletinBoard* workArea = getWorkArea();
uint ww = workArea->width();
uint wh = workArea->height();
printf("workArea w=%d, h=%d\n", ww, wh);
setScrollBarSliderSize(ww, wh);
}
virtual Pixmap getPixmap()
{
return pixmap;
}
virtual Pixmap createPixmap()
{
Args ar;
ar.set(XmNfontName, "Times-a");
ar.set(XmNfontSize, 28);
RenderTable renderTable(this, "", ar);
Display* dsp = getDisplay();
pmWidth = 640;
pmHeight = 480;
Color color(this);
BulletinBoard* workArea = getWorkArea();
Window window = workArea->getWindow();
pixmap = XCreatePixmap(dsp, window, pmWidth, pmHeight,
DefaultDepth(dsp,0));
DC dc(dsp, pixmap);
dc.setForeground(color.color256(0, 40, 40));
dc.fillRectangle(0, 0, pmWidth, pmHeight);
dc.setRenderTable(renderTable.get());
for (int i = 0; i<100; i++) {
dc.setForeground(color.color256(255, 100+i, i));
dc.drawRectangle(40+i, 20+i, 200, 100);
}
dc.setForeground(color.color256(0, 255, 0)); //green
dc.setArcMode(ArcPieSlice);
dc.fillArc(60, 140, 130, 130, 45*360, 120*360);
dc.setForeground(color.color256(0, 0, 255)); //blue
dc.fillArc(260, 140, 130, 130, 45*360, 120*360);
const char* string = "Is Motif dead?\n Could be.\n"
"Don't mind.\nYou have been living\n"
"in the world after death.\n";
//"You can reach any star.\n";
dc.setForeground(color.color256(255, 255, 255)); //white
CompoundString cs(string);
cs.move(50, 50);
cs.draw(&dc);
setHorizScrollBarRange(0, pmWidth);
setVertScrollBarRange(0, pmHeight);
uint ww = workArea->width();
uint wh = workArea->height();
setScrollBarSliderSize(ww, wh);
return pixmap;
}
public:
InnerView(View* parent, const char* name, Args& args)
:CustomScrolledView(parent, name, args)
{
pixmap = None;
}
virtual void display()
{
Position hpos, vpos;
getScrollBarPosition(hpos, vpos);
Pixmap pixmap = getPixmap();
if (pixmap == None) {
pixmap = createPixmap();
}
if (pixmap != None) {
BulletinBoard* dest = getWorkArea();
Dimension width = dest->width();
Dimension height = dest->height();
Pixmap source = pixmap;
DC destDC(dest);
destDC.copyArea(source, 0, 0, width, height, -hpos, -vpos);
//You may need to clear something garbage area.
}
}
};
//Inner class ends.
/////////////////////////////////////////////////////////////////
SmartPtr<InnerView> innerView;
public:
MainView(Application& applet, const char* name, Args& args)
:ApplicationView(applet, name, args)
{
Args ar;
innerView = new InnerView(this, "", ar);
}
~MainView()
{
}
};
}
//
int main(int argc, char** argv)
{
try {
const char* appclass = argv[0];
Application applet(appclass, argc, argv);
Args args;
args.set(XmNwidth, 500);
args.set(XmNheight, 400);
MainView view(applet, argv[0], args);
view.realize();
applet.run();
} catch (Exception& ex) {
caught(ex);
}
return 0;
}