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This commit is contained in:
Don HO 2020-01-06 13:27:56 +01:00
parent 9387dcdaef
commit 563530379f
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1 changed files with 9 additions and 7 deletions
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16
PowerEditor/src/ScitillaComponent/ScintillaEditView.cpp
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@ -1811,12 +1811,12 @@ void ScintillaEditView::saveCurrentPos()
buf->setPosition(pos, this); buf->setPosition(pos, this);
} }
// restore current position is executed in two steps.
// The detection wrap state done in the pre step function:
// if wrap is enabled, then _positionRestoreNeeded is activated
// so post step function will be cakked in the next SCN_PAINTED message
void ScintillaEditView::restoreCurrentPosPreStep() void ScintillaEditView::restoreCurrentPosPreStep()
{ {
// restore current position is executed in two steps:
// - pre step : restoreCurrentPosPreStep (this function)
// - post step : function restoreCurrentPosPreStep that will be executed after scintilla
Buffer * buf = MainFileManager.getBufferByID(_currentBufferID); Buffer * buf = MainFileManager.getBufferByID(_currentBufferID);
Position & pos = buf->getPosition(this); Position & pos = buf->getPosition(this);
@ -1842,17 +1842,19 @@ void ScintillaEditView::restoreCurrentPosPreStep()
} }
// If wrap is enabled, the post step function will be called in the next SCN_PAINTED message
// to scroll several lines to set the first visible line to the correct wrapped line.
void ScintillaEditView::restoreCurrentPosPostStep() void ScintillaEditView::restoreCurrentPosPostStep()
{ {
// scintilla can send several SCN_PAINTED notifications before the buffer is ready to be displayed.
// this post step function is therefore iterated several times in a maximum of 8 iterations.
// 8 is an arbitrary number. 2 is a minimum. Maximum value is unknown.
static int32_t restoreDone = 0; static int32_t restoreDone = 0;
Buffer * buf = MainFileManager.getBufferByID(_currentBufferID); Buffer * buf = MainFileManager.getBufferByID(_currentBufferID);
Position & pos = buf->getPosition(this); Position & pos = buf->getPosition(this);
++_restorePositionRetryCount; ++_restorePositionRetryCount;
// Scintilla can send several SCN_PAINTED notifications before the buffer is ready to be displayed.
// this post step function is therefore iterated several times in a maximum of 8 iterations.
// 8 is an arbitrary number. 2 is a minimum. Maximum value is unknown.
if (_restorePositionRetryCount > 8) if (_restorePositionRetryCount > 8)
{ {
// Abort the position restoring process. Buffer topology may have changed // Abort the position restoring process. Buffer topology may have changed