diff options
Diffstat (limited to 'wx+/dc.h')
| -rwxr-xr-x[-rw-r--r--] | wx+/dc.h | 274 |
1 files changed, 137 insertions, 137 deletions
@@ -1,137 +1,137 @@ -// ***************************************************************************** -// * This file is part of the FreeFileSync project. It is distributed under * -// * GNU General Public License: http://www.gnu.org/licenses/gpl-3.0 * -// * Copyright (C) Zenju (zenju AT freefilesync DOT org) - All Rights Reserved * -// ***************************************************************************** - -#ifndef DC_H_4987123956832143243214 -#define DC_H_4987123956832143243214 - -#include <unordered_map> -#include <zen/optional.h> -#include <wx/dcbuffer.h> //for macro: wxALWAYS_NATIVE_DOUBLE_BUFFER - -namespace zen -{ -/* -1. wxDCClipper does *not* stack: another fix for yet another poor wxWidgets implementation - -class RecursiveDcClipper -{ - RecursiveDcClipper(wxDC& dc, const wxRect& r) : dc_(dc) -}; - ------------------------------------------------------------------------------------------------- - -2. wxAutoBufferedPaintDC skips one pixel on left side when RTL layout is active: a fix for a poor wxWidgets implementation -class BufferedPaintDC -{ - BufferedPaintDC(wxWindow& wnd, std::unique_ptr<wxBitmap>& buffer); -}; -*/ - - - - - - - - - - - -//---------------------- implementation ------------------------ -class RecursiveDcClipper -{ -public: - RecursiveDcClipper(wxDC& dc, const wxRect& r) : dc_(dc) - { - auto it = refDcToAreaMap().find(&dc); - if (it != refDcToAreaMap().end()) - { - oldRect = it->second; - - wxRect tmp = r; - tmp.Intersect(*oldRect); //better safe than sorry - dc_.SetClippingRegion(tmp); // - it->second = tmp; - } - else - { - dc_.SetClippingRegion(r); - refDcToAreaMap().emplace(&dc_, r); - } - } - - ~RecursiveDcClipper() - { - dc_.DestroyClippingRegion(); - if (oldRect) - { - dc_.SetClippingRegion(*oldRect); - refDcToAreaMap()[&dc_] = *oldRect; - } - else - refDcToAreaMap().erase(&dc_); - } - -private: - //associate "active" clipping area with each DC - static std::unordered_map<wxDC*, wxRect>& refDcToAreaMap() { static std::unordered_map<wxDC*, wxRect> clippingAreas; return clippingAreas; } - - Opt<wxRect> oldRect; - wxDC& dc_; -}; - - -#ifndef wxALWAYS_NATIVE_DOUBLE_BUFFER - #error we need this one! -#endif - -#if wxALWAYS_NATIVE_DOUBLE_BUFFER -struct BufferedPaintDC : public wxPaintDC { BufferedPaintDC(wxWindow& wnd, Opt<wxBitmap>& buffer) : wxPaintDC(&wnd) {} }; - -#else -class BufferedPaintDC : public wxMemoryDC -{ -public: - BufferedPaintDC(wxWindow& wnd, Opt<wxBitmap>& buffer) : buffer_(buffer), paintDc(&wnd) - { - const wxSize clientSize = wnd.GetClientSize(); - if (clientSize.GetWidth() > 0 && clientSize.GetHeight() > 0) //wxBitmap asserts this!! width may be 0; test case "Grid::CornerWin": compare both sides, then change config - { - if (!buffer_ || clientSize != wxSize(buffer->GetWidth(), buffer->GetHeight())) - buffer = wxBitmap(clientSize.GetWidth(), clientSize.GetHeight()); - - SelectObject(*buffer); - - if (paintDc.IsOk() && paintDc.GetLayoutDirection() == wxLayout_RightToLeft) - SetLayoutDirection(wxLayout_RightToLeft); - } - else - buffer = NoValue(); - } - - ~BufferedPaintDC() - { - if (buffer_) - { - if (GetLayoutDirection() == wxLayout_RightToLeft) - { - paintDc.SetLayoutDirection(wxLayout_LeftToRight); //workaround bug in wxDC::Blit() - SetLayoutDirection(wxLayout_LeftToRight); // - } - - const wxPoint origin = GetDeviceOrigin(); - paintDc.Blit(0, 0, buffer_->GetWidth(), buffer_->GetHeight(), this, -origin.x, -origin.y); - } - } - -private: - Opt<wxBitmap>& buffer_; - wxPaintDC paintDc; -}; -#endif -} - -#endif //DC_H_4987123956832143243214 +// *****************************************************************************
+// * This file is part of the FreeFileSync project. It is distributed under *
+// * GNU General Public License: http://www.gnu.org/licenses/gpl-3.0 *
+// * Copyright (C) Zenju (zenju AT freefilesync DOT org) - All Rights Reserved *
+// *****************************************************************************
+
+#ifndef DC_H_4987123956832143243214
+#define DC_H_4987123956832143243214
+
+#include <unordered_map>
+#include <zen/optional.h>
+#include <wx/dcbuffer.h> //for macro: wxALWAYS_NATIVE_DOUBLE_BUFFER
+
+namespace zen
+{
+/*
+1. wxDCClipper does *not* stack: another fix for yet another poor wxWidgets implementation
+
+class RecursiveDcClipper
+{
+ RecursiveDcClipper(wxDC& dc, const wxRect& r) : dc_(dc)
+};
+
+------------------------------------------------------------------------------------------------
+
+2. wxAutoBufferedPaintDC skips one pixel on left side when RTL layout is active: a fix for a poor wxWidgets implementation
+class BufferedPaintDC
+{
+ BufferedPaintDC(wxWindow& wnd, std::unique_ptr<wxBitmap>& buffer);
+};
+*/
+
+
+
+
+
+
+
+
+
+
+
+//---------------------- implementation ------------------------
+class RecursiveDcClipper
+{
+public:
+ RecursiveDcClipper(wxDC& dc, const wxRect& r) : dc_(dc)
+ {
+ auto it = refDcToAreaMap().find(&dc);
+ if (it != refDcToAreaMap().end())
+ {
+ oldRect = it->second;
+
+ wxRect tmp = r;
+ tmp.Intersect(*oldRect); //better safe than sorry
+ dc_.SetClippingRegion(tmp); //
+ it->second = tmp;
+ }
+ else
+ {
+ dc_.SetClippingRegion(r);
+ refDcToAreaMap().emplace(&dc_, r);
+ }
+ }
+
+ ~RecursiveDcClipper()
+ {
+ dc_.DestroyClippingRegion();
+ if (oldRect)
+ {
+ dc_.SetClippingRegion(*oldRect);
+ refDcToAreaMap()[&dc_] = *oldRect;
+ }
+ else
+ refDcToAreaMap().erase(&dc_);
+ }
+
+private:
+ //associate "active" clipping area with each DC
+ static std::unordered_map<wxDC*, wxRect>& refDcToAreaMap() { static std::unordered_map<wxDC*, wxRect> clippingAreas; return clippingAreas; }
+
+ Opt<wxRect> oldRect;
+ wxDC& dc_;
+};
+
+
+#ifndef wxALWAYS_NATIVE_DOUBLE_BUFFER
+ #error we need this one!
+#endif
+
+#if wxALWAYS_NATIVE_DOUBLE_BUFFER
+struct BufferedPaintDC : public wxPaintDC { BufferedPaintDC(wxWindow& wnd, Opt<wxBitmap>& buffer) : wxPaintDC(&wnd) {} };
+
+#else
+class BufferedPaintDC : public wxMemoryDC
+{
+public:
+ BufferedPaintDC(wxWindow& wnd, Opt<wxBitmap>& buffer) : buffer_(buffer), paintDc(&wnd)
+ {
+ const wxSize clientSize = wnd.GetClientSize();
+ if (clientSize.GetWidth() > 0 && clientSize.GetHeight() > 0) //wxBitmap asserts this!! width may be 0; test case "Grid::CornerWin": compare both sides, then change config
+ {
+ if (!buffer_ || clientSize != wxSize(buffer->GetWidth(), buffer->GetHeight()))
+ buffer = wxBitmap(clientSize.GetWidth(), clientSize.GetHeight());
+
+ SelectObject(*buffer);
+
+ if (paintDc.IsOk() && paintDc.GetLayoutDirection() == wxLayout_RightToLeft)
+ SetLayoutDirection(wxLayout_RightToLeft);
+ }
+ else
+ buffer = NoValue();
+ }
+
+ ~BufferedPaintDC()
+ {
+ if (buffer_)
+ {
+ if (GetLayoutDirection() == wxLayout_RightToLeft)
+ {
+ paintDc.SetLayoutDirection(wxLayout_LeftToRight); //workaround bug in wxDC::Blit()
+ SetLayoutDirection(wxLayout_LeftToRight); //
+ }
+
+ const wxPoint origin = GetDeviceOrigin();
+ paintDc.Blit(0, 0, buffer_->GetWidth(), buffer_->GetHeight(), this, -origin.x, -origin.y);
+ }
+ }
+
+private:
+ Opt<wxBitmap>& buffer_;
+ wxPaintDC paintDc;
+};
+#endif
+}
+
+#endif //DC_H_4987123956832143243214
|