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https://github.com/ultimatepp/ultimatepp.git
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86 lines
1.8 KiB
C++
86 lines
1.8 KiB
C++
#include "CtrlMover.h"
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void CtrlMover::CalcOffset(const Ctrl& c, const Ctrl& q, Point& p)
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{
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if(&c == &q) return;
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Rect r = c.GetRect();
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p += r.TopLeft();
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Ctrl* pc = c.GetParent();
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if(!pc) { return; }
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if(c.InView())
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{
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Rect rv = pc->GetView();
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p += rv.TopLeft();
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}
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CalcOffset(*pc, q, p);
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}
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//calculate topleft offset of c w.r. up to par recursively
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Point CtrlMover::GetOffset(const Ctrl& c, const Ctrl& q)
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{
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Point p; p.Clear();
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CalcOffset(c, q, p);
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return p;
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}
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void CtrlMover::OnCtrlLeft(Ctrl& c, Point p, dword keyflags)
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{
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if(c.InFrame()) return; //may not move frames
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rc.Remove();
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if(&c == &rc) return;
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if(&c == ~pctrl) return; //mat not move base
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Add(rc.SizePos());
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//if c is frame: rect in parents window,
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//if is in view, then rect in view area, which itself is subarea of parent
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Rect r = c.GetRect();
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if(c.InView())
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r.Offset(c.GetParent()->GetView().TopLeft());
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r.Offset(GetOffset(*c.GetParent(), *pctrl));
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rc.SetData(r);
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Action();
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}
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void CtrlMover::OnRectChange()
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{
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if(!pctrl || !ctrl) { rc.Remove(); return; }
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Rect r = rc.GetData();
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r.Offset(-GetOffset(*ctrl->GetParent(), *pctrl));
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if(ctrl->InView())
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r.Offset(-ctrl->GetParent()->GetView().TopLeft());
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ctrl->SetRect(r);
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Action();
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}
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void CtrlMover::OnMissed(Point p, dword keyflags)
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{
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CtrlFinder::LeftDown(p, keyflags);
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}
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void CtrlMover::Updated()
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{
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if(!pctrl || !ctrl) { rc.Remove(); return; }
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rc.SetData(ctrl->GetRect());
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}
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void CtrlMover::State(int reason)
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{
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if(reason != ENABLE) return;
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if(!IsEnabled()) rc.Remove();
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}
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CtrlMover::CtrlMover()
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{
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WhenLeftDown = THISBACK(OnCtrlLeft);
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rcst = RectCtrl::StyleDefault();
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rcst.rectcol = Null;
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rc.SetStyle(rcst);
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rc <<= THISBACK(OnRectChange);
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rc.WhenMissed = THISBACK(OnMissed);
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}
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