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GUI: prepare for drag selection to move

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This commit is contained in:
tildearrow 2022-06-18 03:52:03 -05:00
parent af8c6313df
commit ea082b255c
5 changed files with 98 additions and 11 deletions
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26
src/gui/editing.cpp
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@ -918,6 +918,32 @@ void FurnaceGUI::doExpand(int multiplier) {
makeUndo(GUI_UNDO_PATTERN_EXPAND);
}
// 1. COPY
// 2. CLEAR
// 3. PASTE
void FurnaceGUI::doDrag() {
int iCoarse=selStart.xCoarse;
int iFine=selStart.xFine;
for (; iCoarse<=selEnd.xCoarse; iCoarse++) {
if (!e->curSubSong->chanShow[iCoarse]) continue;
DivPattern* pat=e->curPat[iCoarse].getPattern(e->curOrders->ord[iCoarse][curOrder],true);
for (; iFine<3+e->curPat[iCoarse].effectCols*2 && (iCoarse<selEnd.xCoarse || iFine<=selEnd.xFine); iFine++) {
for (int j=selStart.y; j<=selEnd.y; j++) {
if (iFine==0) {
pat->data[j][iFine]=0;
if (selStart.y==selEnd.y) pat->data[j][2]=-1;
}
pat->data[j][iFine+1]=(iFine<1)?0:-1;
if (selStart.y==selEnd.y && iFine>2 && iFine&1 && settings.effectDeletionAltersValue) {
pat->data[j][iFine+2]=-1;
}
}
}
iFine=0;
}
}
void FurnaceGUI::doUndo() {
if (undoHist.empty()) return;
UndoStep& us=undoHist.back();