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Use wxAutoBufferedPaintDC rather than manual double-buffering in BaseGrid, as it's simpler and slightly faster

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Originally committed to SVN as r6389.
This commit is contained in:
Thomas Goyne 2012-01-31 00:42:58 +00:00
parent e5f1719d8f
commit b34d2c547f
2 changed files with 5 additions and 19 deletions
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23
aegisub/src/base_grid.cpp
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@ -42,8 +42,7 @@
#include <iterator> #include <iterator>
#include <numeric> #include <numeric>
#include <wx/dcclient.h> #include <wx/dcbuffer.h>
#include <wx/dcmemory.h>
#include <wx/kbdstate.h> #include <wx/kbdstate.h>
#include <wx/menu.h> #include <wx/menu.h>
#include <wx/sizer.h> #include <wx/sizer.h>
@ -91,7 +90,6 @@ BaseGrid::BaseGrid(wxWindow* parent, agi::Context *context, const wxSize& size,
, lineHeight(1) // non-zero to avoid div by 0 , lineHeight(1) // non-zero to avoid div by 0
, holding(false) , holding(false)
, scrollBar(new wxScrollBar(this, GRID_SCROLLBAR, wxDefaultPosition, wxDefaultSize, wxSB_VERTICAL)) , scrollBar(new wxScrollBar(this, GRID_SCROLLBAR, wxDefaultPosition, wxDefaultSize, wxSB_VERTICAL))
, bmp(0)
, byFrame(false) , byFrame(false)
, extendRow(-1) , extendRow(-1)
, active_line(0) , active_line(0)
@ -110,6 +108,8 @@ BaseGrid::BaseGrid(wxWindow* parent, agi::Context *context, const wxSize& size,
SetSizerAndFit(scrollbarpositioner); SetSizerAndFit(scrollbarpositioner);
SetBackgroundStyle(wxBG_STYLE_PAINT);
UpdateStyle(); UpdateStyle();
OnHighlightVisibleChange(*OPT_GET("Subtitle/Grid/Highlight Subtitles in Frame")); OnHighlightVisibleChange(*OPT_GET("Subtitle/Grid/Highlight Subtitles in Frame"));
@ -140,7 +140,6 @@ BaseGrid::BaseGrid(wxWindow* parent, agi::Context *context, const wxSize& size,
BaseGrid::~BaseGrid() { BaseGrid::~BaseGrid() {
ClearMaps(); ClearMaps();
delete bmp;
delete context_menu; delete context_menu;
} }
@ -445,13 +444,6 @@ void BaseGrid::OnPaint(wxPaintEvent &) {
wxSize cs = GetClientSize(); wxSize cs = GetClientSize();
cs.SetWidth(cs.GetWidth() - scrollBar->GetSize().GetWidth()); cs.SetWidth(cs.GetWidth() - scrollBar->GetSize().GetWidth());
// Prepare bitmap
if (bmp && (bmp->GetWidth() < cs.GetWidth() || bmp->GetHeight() < cs.GetHeight())) {
delete bmp;
bmp = 0;
}
if (!bmp) bmp = new wxBitmap(cs);
// Find which columns need to be repainted // Find which columns need to be repainted
bool paint_columns[11]; bool paint_columns[11];
memset(paint_columns, 0, sizeof paint_columns); memset(paint_columns, 0, sizeof paint_columns);
@ -466,13 +458,8 @@ void BaseGrid::OnPaint(wxPaintEvent &) {
} }
} }
// Draw bitmap wxAutoBufferedPaintDC dc(this);
wxMemoryDC bmpDC; DrawImage(dc, paint_columns);
bmpDC.SelectObject(*bmp);
DrawImage(bmpDC, paint_columns);
wxPaintDC dc(this);
dc.Blit(wxPoint(0, 0), cs, &bmpDC, wxPoint(0, 0));
} }
void BaseGrid::DrawImage(wxDC &dc, bool paint_columns[]) { void BaseGrid::DrawImage(wxDC &dc, bool paint_columns[]) {

1
aegisub/src/base_grid.h
View file

@ -69,7 +69,6 @@ class BaseGrid : public wxWindow, public BaseSelectionController<AssDialogue> {
bool holding; ///< Is a drag selection in process? bool holding; ///< Is a drag selection in process?
wxFont font; ///< Current grid font wxFont font; ///< Current grid font
wxScrollBar *scrollBar; ///< The grid's scrollbar wxScrollBar *scrollBar; ///< The grid's scrollbar
wxBitmap *bmp; ///< Back buffer which the grid is rendered into
bool byFrame; ///< Should times be displayed as frame numbers bool byFrame; ///< Should times be displayed as frame numbers
/// Row from which the selection shrinks/grows from when selecting via the /// Row from which the selection shrinks/grows from when selecting via the