Member data containing clipping box have to be updated not only when the clipping region is explicitly changed by SetClippingRegion()/DestroyClippingRegion() but also when existing HDC is associated with wxDC using SetHDC() or when wxDC coordinates are transformed with SetDeviceOrigin(), SetLogicalOrigin(), SetUserScale(), SetLogicalScale(), SetTransformMatrix() or ResetTransformMatrix().
When any of these functions is called then clipping box data are marked as invalid and updated using GetClipBox() Win API at nearest call to GetClippingBox().
See #17646.
When complex transformation (including e.g. rotation) is applied to DC then coordinates of the clip box return by GetClipBox() API can be inaccurate due to the rounding errors.
To compensate these errors we need to fill rectangle which is slightly larger then just retrieved clip box.
Closes#17636.
Current implementation suffers for two issues:
1. Because wxClientDC and wxWindowDC are not distinguished in wxMSWDCImpl::Clear and in both cases DC coordinates are obtained with GetClientRect() Win API what leads to this that for wxWindowDC the entire area is not cleared.
2. Translations like moving logical origin or scaling are not taken into account in wxMemoryDC coordinates calculations (only device origin is included) so for transformed DC calculated coordinates are invalid and finally the entire area is not cleared.
To fix these issues we can use GetClipBox() Win API to obtain actual logical coordinates of the clipping box (with all translations and scaling already included) and this way we can avoid using separate methods of retrieving coordinates for wxClientDC, wxWindowDC and wxMemoryDC.
Because CreateRectRgn() Win API requires that (x1,y1) parameters represent the top-left corner of the clipping box so if a box with negative values of the width or height is passed to wxMSWDCImpl::DoSetClippingRegion() (what means that (x,y) doesn't represent top-left corner) we need to recalculate passed parameters to get the box with (x,y) at top-left corner.
This function is not present in older MinGW import libraries, up to at least
MinGW 4.8.1, so we can't use it directly as it was done in
22f0801378 and we need to load it dynamically.
This was already done in wxDC code, so just reuse the same wrapper function
after extracting it (and a few others, for consistency) into a new header.
This reverts commit d04e256993 because it
results in crashes due to writing out of bounds of the bitmap: nothing
guarantees that the entire (x, y, dstWidth, dstHeight) rectangle fits in the
destination bitmap and so the code of this commit could merrily overflow it
and did it as could be seen e.g. in the HTML test sample after scrolling
around a little.
See #16766.
Don't erase alpha channel of the entire destination image after drawing on it
using AlphaBlend(), we only need to do it for the area corresponding to the
bitmap drawn on it. This speeds things up when drawing small bitmaps with
alpha on a big bitmap without alpha selected into wxMemoryDC which is a common
case.
See #16766.
Reset pointers to functions loaded from msimg32.dll when the library is
uninitialized as they may change if it's re-initialized again and msimg32.dll
is reloaded at a different address.
Also do the same thing for the function pointers from gdi32.dll for
consistency, even though it doesn't seem to be actually required in this case.
Closes#17167.
Windows CE doesn't seem to be supported by Microsoft any longer. Last CE
release was in early 2013 and the PocketPC and Smartphone targets supported by
wxWidgets are long gone.
The build files where already removed in an earlier cleanup this commit
removes all files, every #ifdef and all documentation regarding the Windows CE
support.
Closes https://github.com/wxWidgets/wxWidgets/pull/81
Don't mix signed/unsigned integers in arithmetic operations when normalizing
wxDC scale factors: variable holding GCD value should be of the same type as
variables holding devExt and logExt to avoid wrong results of /= operation
when dividend is a negative value.
Closes#16908.
Add helper wxApp::MSWGetDefaultLayout() static method and use it instead of
wxTheApp->GetLayoutDirection() in wxMSW code.
This serves two purposes: first, wxMessageDialog doesn't crash when it's shown
before wxTheApp is created (or after it's destroyed) any more. And second, we
use the correct layout direction if the main application has enabled it by
calling SetProcessDefaultLayout() or using two U+200E characters in the
beginning of its "FileDescription" resource field by default now.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@78236 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This reverts r78040 (see #16512) as it broke the appearance of the disabled
buttons in MSW toolbars as can be seen in the sample.
The change itself might still be correct and could have just uncovered some
other bug elsewhere, but for now still revert it just to make the toolbars
usable again.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@78054 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This partially reverts the changes of r77029 and r77039: now functions such as
Set/GetLayout(), AlphaBlend() and GradientFill() are still called (almost)
directly when using MSVC but pass by dynamic loading with the other compilers,
which don't have #pragma comment(lib) and, in MinGW case, also lack some of
these functions in their libraries even if we do link with them.
Closes#16411.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@77068 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Implicitly link msimg32.lib in when using MSVC and add it to MinGW (and
Borland) makefiles.
This should have been part of r77029.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@77039 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
All of these functions (AlphaBlend(), SetLayout(), SetWorldTransform(), ...)
are available in XP which is the minimally required version.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@77029 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Extend the correct edge of the rectangle (always the physical right, not the
logical right) to fix off by one errors in RTL mode, affecting notably wxGrid.
See #16250.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@77028 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This compiler is not being developed since several years and almost certainly
can't be used to build the current wxWidgets sources anyhow, so remove all
support for it, including a lot of extremely ugly workarounds for its bugs
with template functions.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76546 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
No real changes, just simplify the code by using RAII classes.
Also avoid unnecessary indentation by returning after checking for the special
cases.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75751 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Avoid passing source HDC to MaskBlt() for these ROPs which only use the
destination HDC as they produce garbage instead of just ignoring the source in
if it's non-NULL.
Closes#2047.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75738 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Make DrawIcon() work when printing: it previously didn't, as we used
::DrawIconEx() Windows function which wasn't supported when printing.
Work around this by using DrawBitmap() if necessary.
Closes#379.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75736 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Explicitly reset wxBitmap alpha flag after clearing its alpha channel to
ensure that we don't treat it as having alpha after going to all the trouble
of ensuring that it doesn't/
See #14403.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75588 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Previously, the area of the bitmap outside of the rectangle covered by the
bitmap being drawn became completely transparent, "losing" the original bitmap
contents. This was due to some pixels of the bitmap having non-0 alpha value
after AlphaBlend() call, as it updates both the colours and alpha of the
destination. As there doesn't seem to be any way to prevent it from doing
this, just reset alpha back to 0 after calling it to avoid the problem.
Closes#14403.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75566 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This keyword is not expanded by Git which means it's not replaced with the
correct revision value in the releases made using git-based scripts and it's
confusing to have lines with unexpanded "$Id$" in the released files. As
expanding them with Git is not that simple (it could be done with git archive
and export-subst attribute) and there are not many benefits in having them in
the first place, just remove all these lines.
If nothing else, this will make an eventual transition to Git simpler.
Closes#14487.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74602 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Use wxMSW::GetLayout() wrapper to avoid directly binding to a function not
present in old Windows versions and also to fix linking errors with MinGW
after the changes of r73484.
See #3995.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73488 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
The mask must be mirrored in the same way as the main bitmap itself (currently
it's not mirrored at all but this could change in the future), so create the
temporary memory HDC with the same layout as is used by the main HDC.
Closes#3995.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73484 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
