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Improve document list display performance

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Reduce number of document list redraws on reload. Force redraw on activating item.

Fix #13479, fix #12632, close #14142
This commit is contained in:
Orden4 2023-09-13 05:28:59 +02:00 committed by Don Ho
parent b068aa9033
commit dca3f682fd
2 changed files with 18 additions and 0 deletions
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17
PowerEditor/src/WinControls/VerticalFileSwitcher/VerticalFileSwitcherListView.cpp
View File

@ -169,12 +169,23 @@ void VerticalFileSwitcherListView::initList()
void VerticalFileSwitcherListView::reload()
{
// Suppress redraws for performance. We target _hParent to prevent scroll bar flickering.
::SendMessage(_hParent, WM_SETREDRAW, false, 0);
removeAll();
initList();
RECT rc{};
::GetClientRect(_hParent, &rc);
resizeColumns(rc.right - rc.left);
::SendMessage(_hParent, WM_SETREDRAW, true, 0);
redrawItems();
}
void VerticalFileSwitcherListView::redrawItems()
{
int nbItem = ListView_GetItemCount(_hSelf);
::SendMessage(_hSelf, WM_PAINT, 0, 0);
ListView_RedrawItems(_hSelf, 0, nbItem - 1);
}
BufferID VerticalFileSwitcherListView::getBufferInfoFromIndex(int index, int & view) const
@ -298,6 +309,9 @@ int VerticalFileSwitcherListView::closeItem(BufferID bufferID, int iView)
void VerticalFileSwitcherListView::activateItem(BufferID bufferID, int iView)
{
// Suppress redraws while we're resetting states
::SendMessage(_hSelf, WM_SETREDRAW, false, 0);
// Clean all selection
int nbItem = ListView_GetItemCount(_hSelf);
for (int i = 0; i < nbItem; ++i)
@ -305,7 +319,10 @@ void VerticalFileSwitcherListView::activateItem(BufferID bufferID, int iView)
_currentIndex = newItem(bufferID, iView);
selectCurrentItem();
// Have to enable redraw to be able to move selection to the current item
::SendMessage(_hSelf, WM_SETREDRAW, true, 0);
ensureVisibleCurrentItem();
redrawItems();
}
int VerticalFileSwitcherListView::add(BufferID bufferID, int iView)

1
PowerEditor/src/WinControls/VerticalFileSwitcher/VerticalFileSwitcherListView.h
View File

@ -63,6 +63,7 @@ public:
std::vector<BufferViewInfo> getSelectedFiles(bool reverse = false) const;
void reload();
void redrawItems();
void ensureVisibleCurrentItem() const {
ListView_EnsureVisible(_hSelf, _currentIndex, false);
};