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Implemented capture on drag on Windows.

This commit is contained in:
Pietro Gagliardi 2015-09-11 21:36:28 -04:00
parent d570440a9b
commit 2f0a022ff3
1 changed files with 20 additions and 0 deletions
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20
winarea/area.c
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@ -12,6 +12,7 @@ struct uiArea {
int hwheelCarry;
int vwheelCarry;
clickCounter cc;
BOOL capturing;
};
static void doPaint(uiArea *a, HDC dc, RECT *client, RECT *clip)
@ -314,6 +315,19 @@ static void areaMouseEvent(uiArea *a, uintmax_t down, uintmax_t up, WPARAM wPar
if (button != 5 && (wParam & MK_XBUTTON2) != 0)
me.Held1To64 |= 1 << 4;
// on Windows, we have to capture on drag ourselves
if (me.Down != 0 && !a->capturing) {
SetCapture(a->hwnd);
a->capturing = TRUE;
}
// only release capture when all buttons released
if (me.Up != 0 && a->capturing && me.Held1To64 == 0) {
// unset flag first as ReleaseCapture() sends WM_CAPTURECHANGED
a->capturing = FALSE;
if (ReleaseCapture() == 0)
logLastError("error releasing capture on drag in areaMouseEvent()");
}
(*(a->ah->MouseEvent))(a->ah, a, &me);
}
@ -408,6 +422,12 @@ static LRESULT CALLBACK areaWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM
0, GET_XBUTTON_WPARAM(wParam) + 3,
GET_KEYSTATE_WPARAM(wParam), lParam);
return TRUE; // XBUTTON messages are different!
case WM_CAPTURECHANGED:
if (a->capturing) {
a->capturing = FALSE;
// TODO raise DragBroken()
}
return 0;
}
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}