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Fixed bug 2137 - SDL Message Boxes don't cope with fixed width fonts (in windows at least)

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Pegasus Epsilon

With the system dialog font set to Arial or Tahoma or another variable-width font, everything works just as expected. When using a fixed-width font, like Courier or DejaVu Sans Mono, the text gets cut off. Example screenshots attached.
This commit is contained in:
Sam Lantinga 2017-08-14 23:45:06 -07:00
parent fb14cb7425
commit e83764a5e0
1 changed files with 12 additions and 2 deletions
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14
src/video/windows/SDL_windowsmessagebox.c
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@ -411,14 +411,24 @@ WIN_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid)
{
/* Get the metrics to try and figure our DLU conversion. */
GetTextMetrics(FontDC, &TM);
s_BaseUnitsX = TM.tmAveCharWidth + 1;
/* Calculation from the following documentation:
* https://support.microsoft.com/en-gb/help/125681/how-to-calculate-dialog-base-units-with-non-system-based-font
* This fixes bug 2137, dialog box calculation with a fixed-width system font
*/
{
SIZE extent;
GetTextExtentPoint32A(FontDC, "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 52, &extent);
s_BaseUnitsX = (extent.cx / 26 + 1) / 2;
}
/*s_BaseUnitsX = TM.tmAveCharWidth + 1;*/
s_BaseUnitsY = TM.tmHeight;
}
/* Measure the *pixel* size of the string. */
wmessage = WIN_UTF8ToString(messageboxdata->message);
SDL_zero(TextSize);
Size.cx = DrawText(FontDC, wmessage, -1, &TextSize, DT_CALCRECT);
DrawText(FontDC, wmessage, -1, &TextSize, DT_CALCRECT);
/* Add some padding for hangs, etc. */
TextSize.right += 2;