OZ++ Sample: ResizableCanvasWithColorPositioner |
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* ResizableCanvasWithColorPositioner.cpp
*
*****************************************************************************/
#include <oz++/motif/ApplicationView.h>
#include <oz++/motif/MainWindow.h>
#include <oz++/motif/Form.h>
#include <oz++/motif/Color.h>
#include <oz++/motif/MenuBar.h>
#include <oz++/motif/Canvas.h>
#include <oz++/motif/ColorPositioner.h>
#include <oz++/motif/CascadeButton.h>
#include <oz++/motif/PulldownMenu.h>
namespace OZ {
class MainView :public ApplicationView {
private:
enum {NEW, OPEN, SAVE, EXIT,
CUT, COPY, PASTE,FIND, REPLACE };
SmartPtr<MainWindow> mainw;
SmartPtr<Form> form;
SmartPtr<Canvas> canvas;
SmartPtr<ColorPositioner> positioner;
SmartPtr<MenuBar> menubar;
SmartPtr<CascadeButton> file;
SmartPtr<CascadeButton> edit;
SmartPtr<PulldownMenu> pulldownm;
SmartPtr<PulldownMenu> epulldownm;
void fileMenu(Action& action)
{
int menuId = action.getClientIntData();
printf("fileMenu %d\n", menuId);
if(menuId == EXIT) {
confirm(action);
}
}
void editMenu(Action& action)
{
int menuId = action.getClientIntData();
printf("editMenu %d\n", menuId);
}
void expose(Event& event)
{
DC dc(canvas);
Color color(canvas);
int r, g, b;
positioner->getPosition(r, g, b);
Pixel pixel = color.color256(r, g, b);
dc.setForeground(pixel);
Dimension w, h;
canvas->get(XmNwidth, (XtArgVal)&w);
canvas->get(XmNheight, (XtArgVal)&h);
dc.fillEllipse(2, 2, w/2-4, h/2-4);
}
virtual void structureNotify(Event& event)
{
XEvent* xe = event.getXEvent();
if (xe->type == ConfigureNotify) {
configureNotify(event);
} else {
//Add here your own nofity event handlers.
}
sendExposeEvent();
}
//Your own resize handler.
virtual void configureNotify(Event& event)
{
Dimension width, height;
get(XmNwidth, (XtArgVal)&width);
get(XmNheight, (XtArgVal)&height);
if (positioner && canvas) {
int w = width-positioner->getPositionerWidth()-4;
canvas->set(XmNwidth, w);
canvas->set(XmNheight, height-4);
}
}
public:
MainView(Application& applet, const char* name, Args& args)
:ApplicationView(applet, name, args)
{
static MenuItem items[] = {
{PUSHBUTTON, "new", "New", NEW, ZERO},
{PUSHBUTTON, "open", "Open", OPEN, ZERO},
{PUSHBUTTON, "save", "Save", SAVE, ZERO},
{PUSHBUTTON, "exit", "Exit", EXIT, ZERO}
};
static MenuItem eitems[] = {
{PUSHBUTTON, "cut", "Cut", CUT, ZERO},
{PUSHBUTTON, "copy", "Copy", COPY, ZERO},
{PUSHBUTTON, "paste", "Paste", PASTE, ZERO},
{PUSHBUTTON, "find", "Find", FIND, ZERO},
{PUSHBUTTON, "replace", "Replace", REPLACE, ZERO}
};
Args ar;
mainw = new MainWindow(this, "mainw", ar);
ar.reset();
form = new Form(mainw, "form", ar);
Color color(this);
ar.reset();
ar.set(XmNx, 2);
ar.set(XmNy, 2);
ar.set(XmNtopAttachment, XmATTACH_FORM);
ar.set(XmNleftAttachment, XmATTACH_FORM);
ar.set(XmNbottomAttachment, XmATTACH_FORM);
ar.set(XmNbackground, color.whitePixel());
canvas = new Canvas(form, "canvas", ar);
ar.reset();
ar.set(XmNtopAttachment, XmATTACH_FORM);
ar.set(XmNrightAttachment, XmATTACH_FORM);
ar.set(XmNleftAttachment, XmATTACH_WIDGET);
ar.set(XmNbottomAttachment, XmATTACH_FORM);
ar.set(XmNleftWidget, canvas->getWidget());
positioner = new ColorPositioner(form, "positioner", ar);
positioner->setPosition(80, 0, 128);
positioner->setExposeEventListener(this);
ar.reset();
menubar = new MenuBar(mainw, "menubar", ar);
CompoundString cs("File");
ar.reset();
ar.set(XmNlabelString, cs);
file = new CascadeButton(menubar, "File", ar);
ar.reset();
ar.set(XmNtearOffModel, XmTEAR_OFF_ENABLED);
pulldownm = new PulldownMenu(menubar, "pulldownm", ar);
pulldownm -> addItem(items, XtNumber(items),
this, (Callback)&MainView::fileMenu);
file -> set(XmNsubMenuId, pulldownm);
CompoundString ecs("Edit");
ar.reset();
ar.set(XmNlabelString, ecs);
edit = new CascadeButton(menubar, "Edit", ar);
ar.reset();
ar.set(XmNtearOffModel, XmTEAR_OFF_ENABLED);
epulldownm = new PulldownMenu(menubar, "epulldownm", ar);
epulldownm -> addItem(eitems, XtNumber(eitems),
this, (Callback)&MainView::editMenu);
edit -> set(XmNsubMenuId, epulldownm);
this -> addEventHandler(StructureNotifyMask, this,
(Handler)&MainView::structureNotify, NULL);
this -> addEventHandler(ExposureMask, this,
(Handler)&MainView::expose, NULL);
}
~MainView()
{
}
};
}
//
int main(int argc, char** argv)
{
try {
const char* appclass = argv[0];
Application applet(appclass, argc, argv);
Args args;
args.set(XmNgeometry, "600x370");
MainView view(applet, argv[0], args);
view.realize();
applet.run();
} catch (Exception& ex) {
caught(ex);
}
return 0;
}