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LCL, Darwin (MacOSX): fix DPI values on LCL-level. Keep WidgetSet-DPI value original. Issue #31037

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git-svn-id: trunk@54453 -
This commit is contained in:
ondrej 2017-03-21 19:29:26 +00:00
parent 431b58c609
commit 20a9ecf1d5
3 changed files with 14 additions and 6 deletions
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8
lcl/include/application.inc
View File

@ -437,6 +437,14 @@ begin
raise Exception.Create(rsNoWidgetSet);
end;
WidgetSet.AppInit(ScreenInfo);
{$IFDEF DARWIN}
// Mac OSX (all WS) return 72 PPI for 100% scaling.
// The LCL needs 96 PPI for correct
// a) font size scaling (Height/Size ratio)
// b) High-DPI scaling (Application.Scaled)
ScreenInfo.PixelsPerInchX := MulDiv(ScreenInfo.PixelsPerInchX, 96, 72);
ScreenInfo.PixelsPerInchY := MulDiv(ScreenInfo.PixelsPerInchY, 96, 72);
{$ENDIF}
ScreenInfo.Initialized := True;
Screen.UpdateScreen;
// set that we are initialized => all exceptions will be handled by our HandleException

4
lcl/interfaces/carbon/carbonwinapi.inc
View File

@ -1455,8 +1455,8 @@ begin
case Index of
LOGPIXELSX,
LOGPIXELSY:
// logical is always 96 dpi (to correspond with 100% scaling on Windows), although physical can differ
Result := 96;
// logical is allways 72 dpi, although physical can differ
Result := 72; // TODO: test scaling and magnification
BITSPIXEL: Result := CGDisplayBitsPerPixel(CGMainDisplayID);
else
DebugLn('TCarbonWidgetSet.GetDeviceCaps TODO Index: ' + DbgS(Index));

8
lcl/interfaces/cocoa/cocoawinapi.inc
View File

@ -1875,9 +1875,9 @@ begin
// todo: change implementation for printers
case Index of
HORZSIZE:
Result := Round(NSScreen.mainScreen.frame.size.width / 96 * 25.4);
Result := Round(NSScreen.mainScreen.frame.size.width / 72 * 25.4);
VERTSIZE:
Result := Round(NSScreen.mainScreen.frame.size.height / 96 * 25.4);
Result := Round(NSScreen.mainScreen.frame.size.height / 72 * 25.4);
HORZRES:
Result := Round(NSScreen.mainScreen.frame.size.width);
BITSPIXEL:
@ -1887,9 +1887,9 @@ begin
SIZEPALETTE:
Result := 0;
LOGPIXELSX:
Result := 96;
Result := 72;
LOGPIXELSY:
Result := 96;
Result := 72;
VERTRES:
Result := Round(NSScreen.mainScreen.frame.size.height);
NUMRESERVED: