1 files changed, 123 insertions, 0 deletions
diff --git a/new/windows/checkbox.c b/new/windows/checkbox.c
new file mode 100644
index 0000000..951eee9
--- /dev/null
+++ b/new/windows/checkbox.c
@@ -0,0 +1,123 @@
+// 7 april 2015
+#include "uipriv_windows.h"
+
+struct checkbox {
+	void (*onToggled)(uiControl *, void *);
+	void *onToggledData;
+};
+
+static BOOL onWM_COMMAND(uiControl *c, WORD code, LRESULT *lResult)
+{
+	struct checkbox *cc = (struct checkbox *) (c->data);
+	HWND hwnd;
+	WPARAM check;
+
+	if (code != BN_CLICKED)
+		return FALSE;
+
+	// we didn't use BS_AUTOCHECKBOX (see controls_windows.go) so we have to manage the check state ourselves
+	hwnd = uiControlHWND(c);
+	check = BST_CHECKED;
+	if (SendMessage(hwnd, BM_GETCHECK, 0, 0) == BST_CHECKED)
+		check = BST_UNCHECKED;
+	SendMessage(hwnd, BM_SETCHECK, check, 0);
+
+	(*(cc->onToggled))(c, cc->onToggledData);
+	*lResult = 0;
+	return TRUE;
+}
+
+static BOOL onWM_NOTIFY(uiControl *c, NMHDR *nm, LRESULT *lResult)
+{
+	return FALSE;
+}
+
+static void onWM_DESTROY(uiControl *c)
+{
+	struct checkbox *cc = (struct checkbox *) (c->data);
+
+	uiFree(cc);
+}
+
+// from http://msdn.microsoft.com/en-us/library/windows/desktop/dn742486.aspx#sizingandspacing
+#define checkboxHeight 10
+// from http://msdn.microsoft.com/en-us/library/windows/desktop/bb226818%28v=vs.85%29.aspx
+#define checkboxXFromLeftOfBoxToLeftOfLabel 12
+
+static void preferredSize(uiControl *c, uiSizing *d, intmax_t *width, intmax_t *height)
+{
+	*width = uiDlgUnitsToX(checkboxXFromLeftOfBoxToLeftOfLabel, d->sys->baseX) + uiWindowsWindowTextWidth(uiControlHWND(c));
+	*height = uiDlgUnitsToY(checkboxHeight, d->sys->baseY);
+}
+
+static void defaultOnToggled(uiControl *c, void *data)
+{
+	// do nothing
+}
+
+uiControl *uiNewCheckbox(const char *text)
+{
+	uiControl *c;
+	struct checkbox *cc;
+	uiWindowsNewControlParams p;
+	WCHAR *wtext;
+
+	p.dwExStyle = 0;
+	p.lpClassName = L"button";
+	wtext = toUTF16(text);
+	p.lpWindowName = wtext;
+	p.dwStyle = BS_CHECKBOX | WS_TABSTOP;
+	p.hInstance = hInstance;
+	p.useStandardControlFont = TRUE;
+	p.onWM_COMMAND = onWM_COMMAND;
+	p.onWM_NOTIFY = onWM_NOTIFY;
+	p.onWM_DESTROY = onWM_DESTROY;
+	c = uiWindowsNewControl(&p);
+	uiFree(wtext);
+
+	c->preferredSize = preferredSize;
+
+	cc = uiNew(struct checkbox);
+	cc->onToggled = defaultOnToggled;
+	c->data = cc;
+
+	return c;
+}
+
+char *uiCheckboxText(uiControl *c)
+{
+	return uiWindowsControlText(c);
+}
+
+void uiCheckboxSetText(uiControl *c, const char *text)
+{
+	uiWindowsControlSetText(c, text);
+}
+
+void uiCheckboxOnToggled(uiControl *c, void (*f)(uiControl *, void *), void *data)
+{
+	struct checkbox *cc = (struct checkbox *) (c->data);
+
+	cc->onToggled = f;
+	cc->onToggledData = data;
+}
+
+int uiCheckboxChecked(uiControl *c)
+{
+	HWND hwnd;
+
+	hwnd = uiControlHWND(c);
+	return SendMessage(hwnd, BM_GETCHECK, 0, 0) == BST_CHECKED;
+}
+
+void uiCheckboxSetChecked(uiControl *c, int checked)
+{
+	HWND hwnd;
+	WPARAM check;
+
+	hwnd = uiControlHWND(c);
+	check = BST_CHECKED;
+	if (!checked)
+		check = BST_UNCHECKED;
+	SendMessage(hwnd, BM_SETCHECK, check, 0);
+}