Scribble
Simple drawing application
Scribble.cpp
#include <CtrlLib/CtrlLib.h>
using namespace Upp;
#define LAYOUTFILE <Scribble/Scribble.lay>
#include <CtrlCore/lay.h>
class Scribble : public TopWindow {
public:
virtual void Paint(Draw& w);
virtual void MouseMove(Point p, dword keyflags);
virtual void LeftDown(Point p, dword keyflags);
virtual void Layout();
protected:
Vector< Vector<Point> > image;
Size imagesize;
MenuBar menu;
ScrollBars scroll;
void Scroll();
void SetupSize();
void Exit();
void About();
void FileBar(Bar& bar);
void EditBar(Bar& bar);
void AboutBar(Bar& bar);
void MainBar(Bar& bar);
public:
typedef Scribble CLASSNAME;
Scribble();
};
void Scribble::Paint(Draw& w)
{
Size sz = GetSize();
Point pos = scroll;
w.Clip(0, 0, imagesize.cx, imagesize.cy);
w.DrawRect(0, 0, imagesize.cx, imagesize.cy, White);
for(int i = 0; i < image.GetCount(); i++) {
const Vector<Point>& stroke = image[i];
Point p1 = stroke[0] - pos;
for(int j = 1; j < stroke.GetCount(); j++) {
Point p2 = stroke[j] - pos;
w.DrawLine(p1, p2);
p1 = p2;
}
w.DrawRect(p1.x, p1.y, 1, 1, Black);
}
w.End();
w.DrawRect(imagesize.cx - pos.x, 0, sz.cx - pos.x, sz.cy, SLtGray);
w.DrawRect(0, imagesize.cy - pos.y, imagesize.cx - pos.x, sz.cy - pos.y, SLtGray);
w.DrawRect(-pos.x, -pos.y + imagesize.cy, imagesize.cx, 1, SBlack);
w.DrawRect(-pos.x + imagesize.cx, -pos.y, 1, imagesize.cy, SBlack);
}
void Scribble::MouseMove(Point p, dword keyflags)
{
if(HasCapture()) {
image.Top().Add() = scroll + p;
Refresh();
}
}
void Scribble::LeftDown(Point p, dword keyflags)
{
image.Add().Add() = scroll + p;
SetCapture();
Refresh();
}
void Scribble::SetupSize()
{
WithSizeLayout<TopWindow> dlg;
CtrlLayoutOKCancel(dlg, "Drawing size");
dlg.cx.Min(1);
dlg.cy.Min(1);
dlg.cx <<= imagesize.cx;
dlg.cy <<= imagesize.cy;
if(dlg.Run() != IDOK) return;
imagesize = Size(~dlg.cx, ~dlg.cy);
scroll.SetTotal(imagesize);
Refresh();
}
void Scribble::Layout()
{
scroll.SetPage(GetSize());
scroll.SetTotal(imagesize);
}
void Scribble::Scroll()
{
SetFocus();
Refresh();
}
void Scribble::Exit()
{
if(PromptOKCancel("Exit Scribble ?"))
Close();
}
void Scribble::About()
{
PromptOK("[6R/ Scribble3]&ULTIMATE`+`+ tutorial sample");
}
void Scribble::FileBar(Bar& bar)
{
bar.Add("Exit", THISBACK(Exit));
}
void Scribble::EditBar(Bar& bar)
{
bar.Add("Drawing size..", THISBACK(SetupSize));
}
void Scribble::AboutBar(Bar& bar)
{
bar.Add("About..", THISBACK(About));
}
void Scribble::MainBar(Bar& bar)
{
bar.Add("File", THISBACK(FileBar));
bar.Add("Edit", THISBACK(EditBar));
bar.Add("Help", THISBACK(AboutBar));
}
Scribble::Scribble()
{
imagesize = Size(600, 400);
Title("Scribble").Zoomable().Sizeable();
AddFrame(menu);
AddFrame(InsetFrame());
AddFrame(scroll);
menu.Set(THISBACK(MainBar));
scroll.WhenScroll = THISBACK(Scroll);
WhenClose = THISBACK(Exit);
BackPaint();
}
GUI_APP_MAIN
{
Scribble().Run();
}
Scribble.lay
LAYOUT(SizeLayout, 132, 88)
ITEM(Label, dv___0, SetLabel(t_("Width")).LeftPosZ(8, 52).TopPosZ(8, 19))
ITEM(EditIntSpin, cx, LeftPosZ(68, 55).TopPosZ(8, 19))
ITEM(Label, dv___2, SetLabel(t_("Height")).LeftPosZ(8, 52).TopPosZ(28, 19))
ITEM(EditIntSpin, cy, LeftPosZ(68, 55).TopPosZ(28, 19))
ITEM(Button, ok, SetLabel(t_("OK")).LeftPosZ(8, 56).TopPosZ(56, 24))
ITEM(Button, cancel, SetLabel(t_("Cancel")).LeftPosZ(68, 56).TopPosZ(56, 24))
END_LAYOUT
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