#include <TridPOV.h>
Inheritance diagram for TridPOVUndoable:
Public Member Functions | |
| void | PushIfChanged () |
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Definition at line 7 of file TridPOV.cxx. Referenced by TridGLFrame::HandleButton(), TridGLFrame::HandleKey(), TridGLFrame::HandleMotion(), and TridFlatGLFrame::HandleMotion(). 00008 {
00009 // Don't push unless more than one thing has changed.
00010 // Otherwise, just replace the current copy.
00011
00012 // Push if there hasn't been an update.
00013 if(fStack.size()<2) Push();
00014
00015 // Push if we're in the undo history.
00016 if(fIndex!=0) Push();
00017
00018 // Count the number of things that changed as nchanged.
00019 // If anything changed this time but didn't change last time, push it anyway.
00020
00021 int nchanged = 0;
00022 if(fx != fStack[0].fx) { nchanged++; if(fStack[0].fx == fStack[1].fx ) { Push(); return; } };
00023 if(fy != fStack[0].fy) { nchanged++; if(fStack[0].fy == fStack[1].fy ) { Push(); return; } };
00024 if(fz != fStack[0].fz) { nchanged++; if(fStack[0].fz == fStack[1].fz ) { Push(); return; } };
00025 if(fDist != fStack[0].fDist) { nchanged++; if(fStack[0].fDist == fStack[1].fDist ) { Push(); return; } };
00026 if(fTheta != fStack[0].fTheta){ nchanged++; if(fStack[0].fTheta == fStack[1].fTheta ) { Push(); return; } };
00027 if(fPhi != fStack[0].fPhi) { nchanged++; if(fStack[0].fPhi == fStack[1].fPhi ) { Push(); return; } };
00028
00029 // If more than one thing changed, push it (even if those things changed last time, too)
00030
00031 if(nchanged > 1) {
00032 Push();
00033 return;
00034 }
00035
00036 Change();
00037 }
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1.3.9.1