another UI attempt, I guess.

sorry.

1 files changed, 151 insertions, 0 deletions

diff --git a/src/libui_sdl/libui/windows/events.cpp b/src/libui_sdl/libui/windows/events.cpp
new file mode 100644
index 0000000..45e8d43
--- /dev/null
+++ b/src/libui_sdl/libui/windows/events.cpp
@@ -0,0 +1,151 @@
+// 20 may 2015
+#include "uipriv_windows.hpp"
+
+struct handler {
+	BOOL (*commandHandler)(uiControl *, HWND, WORD, LRESULT *);
+	BOOL (*notifyHandler)(uiControl *, HWND, NMHDR *, LRESULT *);
+	BOOL (*hscrollHandler)(uiControl *, HWND, WORD, LRESULT *);
+	uiControl *c;
+
+	// just to ensure handlers[new HWND] initializes properly
+	// TODO gcc can't handle a struct keyword here? or is that a MSVC extension?
+	handler()
+	{
+		this->commandHandler = NULL;
+		this->notifyHandler = NULL;
+		this->hscrollHandler = NULL;
+		this->c = NULL;
+	}
+};
+
+static std::map<HWND, struct handler> handlers;
+
+void uiWindowsRegisterWM_COMMANDHandler(HWND hwnd, BOOL (*handler)(uiControl *, HWND, WORD, LRESULT *), uiControl *c)
+{
+	if (handlers[hwnd].commandHandler != NULL)
+		implbug("already registered a WM_COMMAND handler to window handle %p", hwnd);
+	handlers[hwnd].commandHandler = handler;
+	handlers[hwnd].c = c;
+}
+
+void uiWindowsRegisterWM_NOTIFYHandler(HWND hwnd, BOOL (*handler)(uiControl *, HWND, NMHDR *, LRESULT *), uiControl *c)
+{
+	if (handlers[hwnd].notifyHandler != NULL)
+		implbug("already registered a WM_NOTIFY handler to window handle %p", hwnd);
+	handlers[hwnd].notifyHandler = handler;
+	handlers[hwnd].c = c;
+}
+
+void uiWindowsRegisterWM_HSCROLLHandler(HWND hwnd, BOOL (*handler)(uiControl *, HWND, WORD, LRESULT *), uiControl *c)
+{
+	if (handlers[hwnd].hscrollHandler != NULL)
+		implbug("already registered a WM_HSCROLL handler to window handle %p", hwnd);
+	handlers[hwnd].hscrollHandler = handler;
+	handlers[hwnd].c = c;
+}
+
+void uiWindowsUnregisterWM_COMMANDHandler(HWND hwnd)
+{
+	if (handlers[hwnd].commandHandler == NULL)
+		implbug("window handle %p not registered to receive WM_COMMAND events", hwnd);
+	handlers[hwnd].commandHandler = NULL;
+}
+
+void uiWindowsUnregisterWM_NOTIFYHandler(HWND hwnd)
+{
+	if (handlers[hwnd].notifyHandler == NULL)
+		implbug("window handle %p not registered to receive WM_NOTIFY events", hwnd);
+	handlers[hwnd].notifyHandler = NULL;
+}
+
+void uiWindowsUnregisterWM_HSCROLLHandler(HWND hwnd)
+{
+	if (handlers[hwnd].hscrollHandler == NULL)
+		implbug("window handle %p not registered to receive WM_HSCROLL events", hwnd);
+	handlers[hwnd].hscrollHandler = NULL;
+}
+
+template<typename T>
+static BOOL shouldRun(HWND hwnd, T method)
+{
+	// not from a window
+	if (hwnd == NULL)
+		return FALSE;
+	// don't bounce back if to the utility window, in which case act as if the message was ignored
+	if (IsChild(utilWindow, hwnd) != 0)
+		return FALSE;
+	// registered?
+	return method != NULL;
+}
+
+BOOL runWM_COMMAND(WPARAM wParam, LPARAM lParam, LRESULT *lResult)
+{
+	HWND hwnd;
+	WORD arg3;
+	BOOL (*handler)(uiControl *, HWND, WORD, LRESULT *);
+	uiControl *c;
+
+	hwnd = (HWND) lParam;
+	arg3 = HIWORD(wParam);
+	handler = handlers[hwnd].commandHandler;
+	c = handlers[hwnd].c;
+	if (shouldRun(hwnd, handler))
+		return (*handler)(c, hwnd, arg3, lResult);
+	return FALSE;
+}
+
+BOOL runWM_NOTIFY(WPARAM wParam, LPARAM lParam, LRESULT *lResult)
+{
+	HWND hwnd;
+	NMHDR *arg3;
+	BOOL (*handler)(uiControl *, HWND, NMHDR *, LRESULT *);
+	uiControl *c;
+
+	arg3 = (NMHDR *) lParam;
+	hwnd = arg3->hwndFrom;
+	handler = handlers[hwnd].notifyHandler;
+	c = handlers[hwnd].c;
+	if (shouldRun(hwnd, handler))
+		return (*handler)(c, hwnd, arg3, lResult);
+	return FALSE;
+}
+
+BOOL runWM_HSCROLL(WPARAM wParam, LPARAM lParam, LRESULT *lResult)
+{
+	HWND hwnd;
+	WORD arg3;
+	BOOL (*handler)(uiControl *, HWND, WORD, LRESULT *);
+	uiControl *c;
+
+	hwnd = (HWND) lParam;
+	arg3 = LOWORD(wParam);
+	handler = handlers[hwnd].hscrollHandler;
+	c = handlers[hwnd].c;
+	if (shouldRun(hwnd, handler))
+		return (*handler)(c, hwnd, arg3, lResult);
+	return FALSE;
+}
+
+static std::map<HWND, bool> wininichanges;
+
+void uiWindowsRegisterReceiveWM_WININICHANGE(HWND hwnd)
+{
+	if (wininichanges[hwnd])
+		implbug("window handle %p already subscribed to receive WM_WINICHANGEs", hwnd);
+	wininichanges[hwnd] = true;
+}
+
+void uiWindowsUnregisterReceiveWM_WININICHANGE(HWND hwnd)
+{
+	if (!wininichanges[hwnd])
+		implbug("window handle %p not registered to receive WM_WININICHANGEs", hwnd);
+	wininichanges[hwnd] = false;
+}
+
+void issueWM_WININICHANGE(WPARAM wParam, LPARAM lParam)
+{
+	struct wininichange *ch;
+
+	for (const auto &iter : wininichanges)
+		SendMessageW(iter.first, WM_WININICHANGE, wParam, lParam);
+}