1 files changed, 108 insertions, 0 deletions
diff --git a/new/windows/button.c b/new/windows/button.c
new file mode 100644
index 0000000..f89a197
--- /dev/null
+++ b/new/windows/button.c
@@ -0,0 +1,108 @@
+// 7 april 2015
+#include "uipriv_windows.h"
+
+struct button {
+	void (*onClicked)(uiControl *, void *);
+	void *onClickedData;
+};
+
+static BOOL onWM_COMMAND(uiControl *c, WORD code, LRESULT *lResult)
+{
+	struct button *b = (struct button *) (c->data);
+
+	if (code != BN_CLICKED)
+		return FALSE;
+	(*(b->onClicked))(c, b->onClickedData);
+	*lResult = 0;
+	return TRUE;
+}
+
+static BOOL onWM_NOTIFY(uiControl *c, NMHDR *nm, LRESULT *lResult)
+{
+	return FALSE;
+}
+
+static void onWM_DESTROY(uiControl *c)
+{
+	struct button *b = (struct button *) (c->data);
+
+	uiFree(b);
+}
+
+// from http://msdn.microsoft.com/en-us/library/windows/desktop/dn742486.aspx#sizingandspacing
+#define buttonHeight 14
+
+static void preferredSize(uiControl *c, uiSizing *d, intmax_t *width, intmax_t *height)
+{
+	HWND hwnd;
+	SIZE size;
+
+	hwnd = uiControlHWND(c);
+
+	// try the comctl32 version 6 way
+	size.cx = 0;		// explicitly ask for ideal size
+	size.cy = 0;
+	if (SendMessageW(hwnd, BCM_GETIDEALSIZE, 0, (LPARAM) (&size)) != FALSE) {
+		*width = size.cx;
+		*height = size.cy;
+		return;
+	}
+
+	// that didn't work; fall back to using Microsoft's metrics
+	// Microsoft says to use a fixed width for all buttons; this isn't good enough
+	// use the text width instead, with some edge padding
+	*width = uiWindowsWindowTextWidth(hwnd) + (2 * GetSystemMetrics(SM_CXEDGE));
+	*height = uiDlgUnitsToY(buttonHeight, d->sys->baseY);
+}
+
+static void defaultOnClicked(uiControl *c, void *data)
+{
+	// do nothing
+}
+
+uiControl *uiNewButton(const char *text)
+{
+	uiControl *c;
+	struct button *b;
+	uiWindowsNewControlParams p;
+	WCHAR *wtext;
+
+	p.dwExStyle = 0;
+	p.lpClassName = L"button";
+	wtext = toUTF16(text);
+	p.lpWindowName = wtext;
+	p.dwStyle = BS_PUSHBUTTON | 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;
+
+	b = uiNew(struct button);
+	b->onClicked = defaultOnClicked;
+	c->data = b;
+
+	return c;
+}
+
+char *uiButtonText(uiControl *c)
+{
+	return uiWindowsControlText(c);
+}
+
+void uiButtonSetText(uiControl *c, const char *text)
+{
+	uiWindowsControlSetText(c, text);
+}
+
+void uiButtonOnClicked(uiControl *c, void (*f)(uiControl *, void *), void *data)
+{
+	struct button *b = (struct button *) (c->data);
+
+	b->onClicked = f;
+	b->onClickedData = data;
+}