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Started the logic for proper positioning of the Popover on Windows.

This commit is contained in:
Pietro Gagliardi 2014-10-10 16:56:18 -04:00
parent 63d59e7421
commit f2f743824e
1 changed files with 38 additions and 2 deletions
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40
windowspopover/main.c
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@ -153,6 +153,9 @@ HRGN makePopoverRegion(HDC dc, LONG width, LONG height)
return region;
}
#define msgPopoverPrepareLeftRight (WM_APP+50)
#define msgPopoverPrepareTopBottom (WM_APP+51)
LRESULT CALLBACK popoverproc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
PAINTSTRUCT ps;
@ -235,16 +238,49 @@ LRESULT CALLBACK popoverproc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
FrameRect(dc, &r, GetStockPen(WHITE_BRUSH));
EndPaint(hwnd, &ps);
return 0;
case msgPopoverPrepareLeftRight:
case msgPopoverPrepareTopBottom:
// TODO screen snapping
{
RECT r;
LONG x, y;
LONG width = 200, height = 200;
if (GetWindowRect((HWND) wParam, &r) == 0)
xpanic("error getting window rect of Popover target", GetLastError());
width += 2;
height += 2;
p->arrowLeft = -1;
p->arrowRight = -1;
p->arrowTop = -1;
p->arrowBottom = -1;
if (uMsg == msgPopoverPrepareLeftRight) {
width += ARROWWIDTH;
p->arrowLeft = height / 2 - ARROWHEIGHT;
x = r.right;
y = r.top - ((height - (r.bottom - r.top)) / 2);
} else {
height += ARROWHEIGHT;
p->arrowTop = width / 2 - ARROWWIDTH;
x = r.left - ((width - (r.right - r.left)) / 2);
y = r.bottom;
}
if (MoveWindow(hwnd, x, y, width, height, TRUE) == 0)
xpanic("error repositioning Popover", GetLastError());
}
return 0;
}
return DefWindowProcW(hwnd, uMsg, wParam, lParam);
}
HWND button;
LRESULT CALLBACK wndproc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
switch (uMsg) {
case WM_COMMAND:
if (HIWORD(wParam) == BN_CLICKED && LOWORD(wParam) == 100) {
MoveWindow(popover, 50, 50, 200, 200, TRUE);
SendMessageW(popover, msgPopoverPrepareLeftRight, (WPARAM) button, 0);
ShowWindow(popover, SW_SHOW);
UpdateWindow(popover);
return 0;
@ -260,7 +296,7 @@ LRESULT CALLBACK wndproc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
int main(int argc, char *argv[])
{
WNDCLASSW wc;
HWND mainwin, button;
HWND mainwin;
MSG msg;
ZeroMemory(&wc, sizeof (WNDCLASSW));