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optimalization of wxHtmlWindow painting (used to repaint areas invalidated when scrolling 3+ times)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@12437 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Václav Slavík
2001-11-15 23:54:16 +00:00
parent 88f2a7714a
commit b835e9bf49
1 changed files with 7 additions and 12 deletions
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19
src/html/htmlwin.cpp
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@@ -632,23 +632,18 @@ void wxHtmlWindow::OnCellMouseHover(wxHtmlCell * WXUNUSED(cell),
void wxHtmlWindow::OnDraw(wxDC& dc) void wxHtmlWindow::OnDraw(wxDC& dc)
{ {
int x, y; if (m_tmpCanDrawLocks > 0 || m_Cell == NULL) return;
wxRegionIterator upd(GetUpdateRegion()); // get the update rect list
int v_y, v_h;
if (m_tmpCanDrawLocks > 0) return; int x, y;
wxRect rect = GetUpdateRegion().GetBox();
dc.SetMapMode(wxMM_TEXT); dc.SetMapMode(wxMM_TEXT);
dc.SetBackgroundMode(wxTRANSPARENT); dc.SetBackgroundMode(wxTRANSPARENT);
GetViewStart(&x, &y); GetViewStart(&x, &y);
while (upd) m_Cell->Draw(dc, 0, 0,
{ y * wxHTML_SCROLL_STEP + rect.GetTop(),
v_y = upd.GetY(); y * wxHTML_SCROLL_STEP + rect.GetBottom());
v_h = upd.GetH();
if (m_Cell) m_Cell->Draw(dc, 0, 0, y * wxHTML_SCROLL_STEP + v_y, y * wxHTML_SCROLL_STEP + v_h + v_y);
upd++;
}
} }
@@ -785,4 +780,4 @@ IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
#include "wx/html/forcelnk.h" #include "wx/html/forcelnk.h"
FORCE_WXHTML_MODULES() FORCE_WXHTML_MODULES()
#endif #endif