1 files changed, 227 insertions, 0 deletions
diff --git a/prev/popover/main_windows.c b/prev/popover/main_windows.c
new file mode 100644
index 0000000..24c941a
--- /dev/null
+++ b/prev/popover/main_windows.c
@@ -0,0 +1,227 @@
+// 9 october 2014
+#include "../wininclude_windows.h"
+#include "popover.h"
+
+// #qo LIBS: user32 kernel32 gdi32
+
+// TODO
+// - should the parent window appear deactivated?
+
+HWND popoverWindow;
+
+void xpanic(char *msg, DWORD err)
+{
+	printf("%d | %s\n", err, msg);
+	abort();
+}
+
+popover *p;
+
+HRGN makePopoverRegion(HDC dc, LONG width, LONG height)
+{
+	popoverPoint ppt[20];
+	POINT pt[20];
+	int i, n;
+	HRGN region;
+
+	n = popoverMakeFramePoints(p, (intptr_t) width, (intptr_t) height, ppt);
+	for (i = 0; i < n; i++) {
+		pt[i].x = (LONG) (ppt[i].x);
+		pt[i].y = (LONG) (ppt[i].y);
+	}
+
+	if (BeginPath(dc) == 0)
+		xpanic("error beginning path for Popover shape", GetLastError());
+	if (Polyline(dc, pt, n) == 0)
+		xpanic("error drawing lines in Popover shape", GetLastError());
+	if (EndPath(dc) == 0)
+		xpanic("error ending path for Popover shape", GetLastError());
+	region = PathToRegion(dc);
+	if (region == NULL)
+		xpanic("error converting Popover shape path to region", GetLastError());
+	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;
+	HDC dc;
+	HRGN region;
+	RECT r;
+	LONG width;
+	LONG height;
+	WINDOWPOS *wp;
+	HBRUSH brush;
+
+	switch (uMsg) {
+	case WM_NCPAINT:
+		if (GetWindowRect(hwnd, &r) == 0)
+			xpanic("error getting Popover window rect for shape redraw", GetLastError());
+		width = r.right - r.left;
+		height = r.bottom - r.top;
+		dc = GetWindowDC(hwnd);
+		if (dc == NULL)
+			xpanic("error getting Popover window DC for drawing border", GetLastError());
+		region = makePopoverRegion(dc, width, height);
+		// don't call FillRgn(); WM_ERASEBKGND seems to do this to the non-client area for us already :S (TODO confirm)
+		// TODO arrow is black in wine
+		brush = (HBRUSH) GetStockObject(BLACK_BRUSH);
+		if (brush == NULL)
+			xpanic("error getting Popover border brush", GetLastError());
+		if (FrameRgn(dc, region, brush, 1, 1) == 0)
+			xpanic("error drawing Popover border", GetLastError());
+		if (DeleteObject(region) == 0)
+			xpanic("error deleting Popover shape region", GetLastError());
+		if (ReleaseDC(hwnd, dc) == 0)
+			xpanic("error releasing Popover window DC for shape drawing", GetLastError());
+		return 0;
+	case WM_WINDOWPOSCHANGED:
+		// this must be here; if it's in WM_NCPAINT weird things happen (see http://stackoverflow.com/questions/26288303/why-is-my-client-rectangle-drawing-behaving-bizarrely-pictures-provided-if-i-t)
+		wp = (WINDOWPOS *) lParam;
+		if ((wp->flags & SWP_NOSIZE) == 0) {
+			dc = GetWindowDC(hwnd);
+			if (dc == NULL)
+				xpanic("error getting Popover window DC for reshaping", GetLastError());
+			region = makePopoverRegion(dc, wp->cx, wp->cy);
+			if (SetWindowRgn(hwnd, region, TRUE) == 0)
+				xpanic("error setting Popover shape", GetLastError());
+			// don't delete the region; the window manager owns it now
+			if (ReleaseDC(hwnd, dc) == 0)
+				xpanic("error releasing Popover window DC for reshaping", GetLastError());
+		}
+		break;		// defer to DefWindowProc()
+	case WM_NCCALCSIZE:
+		{
+			RECT *r = (RECT *) lParam;
+			NCCALCSIZE_PARAMS *np = (NCCALCSIZE_PARAMS *) lParam;
+			popoverRect pr;
+
+			if (wParam != FALSE)
+				r = &np->rgrc[0];
+			pr.left = (intptr_t) (r->left);
+			pr.top = (intptr_t) (r->top);
+			pr.right = (intptr_t) (r->right);
+			pr.bottom = (intptr_t) (r->bottom);
+			popoverWindowSizeToClientSize(p, &pr);
+			r->left = (LONG) (pr.left);
+			r->top = (LONG) (pr.top);
+			r->right = (LONG) (pr.right);
+			r->bottom = (LONG) (pr.bottom);
+			return 0;
+		}
+	case WM_PAINT:
+		dc = BeginPaint(hwnd, &ps);
+		GetClientRect(hwnd, &r);
+		FillRect(dc, &r, GetSysColorBrush(COLOR_ACTIVECAPTION));
+		FrameRect(dc, &r, GetStockPen(WHITE_BRUSH));
+		EndPaint(hwnd, &ps);
+		return 0;
+	case msgPopoverPrepareLeftRight:
+	case msgPopoverPrepareTopBottom:
+		// TODO window edge detection
+		{
+			RECT r;
+			LONG width = 200, height = 200;
+			popoverRect control;
+			uintptr_t side;
+			popoverRect out;
+
+			if (GetWindowRect((HWND) wParam, &r) == 0)
+				xpanic("error getting window rect of Popover target", GetLastError());
+			control.left = (intptr_t) (r.left);
+			control.top = (intptr_t) (r.top);
+			control.right = (intptr_t) (r.right);
+			control.bottom = (intptr_t) (r.bottom);
+			switch (uMsg) {
+			case msgPopoverPrepareLeftRight:
+				side = popoverPointLeft;
+				break;
+			case msgPopoverPrepareTopBottom:
+				side = popoverPointTop;
+				break;
+			}
+			out = popoverPointAt(p, control, (intptr_t) width, (intptr_t) height, side);
+			if (MoveWindow(hwnd, out.left, out.top, out.right - out.left, out.bottom - out.top, 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) {
+			SendMessageW(popoverWindow, msgPopoverPrepareLeftRight, (WPARAM) button, 0);
+			ShowWindow(popoverWindow, SW_SHOW);
+			UpdateWindow(popoverWindow);
+			return 0;
+		}
+		break;
+	case WM_CLOSE:
+		PostQuitMessage(0);
+		return 0;
+	}
+	return DefWindowProcW(hwnd, uMsg, wParam, lParam);
+}
+
+int main(int argc, char *argv[])
+{
+	WNDCLASSW wc;
+	HWND mainwin;
+	MSG msg;
+
+	p = popoverDataNew(NULL);
+	// TODO null check
+
+	ZeroMemory(&wc, sizeof (WNDCLASSW));
+	wc.lpszClassName = L"popover";
+	wc.lpfnWndProc = popoverproc;
+	wc.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1);
+	wc.style = CS_DROPSHADOW | CS_NOCLOSE;
+	if (RegisterClassW(&wc) == 0)
+		abort();
+	popoverWindow = CreateWindowExW(WS_EX_TOPMOST,
+		L"popover", L"",
+		WS_POPUP,
+		0, 0, 150, 100,
+		NULL, NULL, NULL, NULL);
+	if (popoverWindow == NULL)
+		abort();
+
+	ZeroMemory(&wc, sizeof (WNDCLASSW));
+	wc.lpszClassName = L"mainwin";
+	wc.lpfnWndProc = wndproc;
+	wc.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1);
+	if (RegisterClassW(&wc) == 0)
+		abort();
+	mainwin = CreateWindowExW(0,
+		L"mainwin", L"Main Window",
+		WS_OVERLAPPEDWINDOW,
+		0, 0, 150, 100,
+		NULL, NULL, NULL, NULL);
+	if (mainwin == NULL)
+		abort();
+	button = CreateWindowExW(0,
+		L"button", L"Click Me",
+		BS_PUSHBUTTON | WS_CHILD | WS_VISIBLE,
+		20, 20, 100, 40,
+		mainwin, (HMENU) 100, NULL, NULL);
+	if (button == NULL)
+		abort();
+	ShowWindow(mainwin, SW_SHOWDEFAULT);
+	if (UpdateWindow(mainwin) == 0)
+		abort();
+	while (GetMessageW(&msg, NULL, 0, 0) > 0) {
+		TranslateMessage(&msg);
+		DispatchMessageW(&msg);
+	}
+	return 0;
+}