Split all OS backends into their own folders.

1 files changed, 55 insertions, 0 deletions

diff --git a/new/windows/text.c b/new/windows/text.c
new file mode 100644
index 0000000..8d6d0b0
--- /dev/null
+++ b/new/windows/text.c
@@ -0,0 +1,55 @@
+// 9 april 2015
+#include "uipriv_windows.h"
+
+// see http://stackoverflow.com/a/29556509/3408572
+
+#define MBTWC(str, wstr, bufsiz) MultiByteToWideChar(CP_UTF8, 0, str, -1, wstr, bufsiz)
+
+WCHAR *toUTF16(const char *str)
+{
+	WCHAR *wstr;
+	int n;
+
+	n = MBTWC(str, NULL, 0);
+	if (n == 0)
+		logLastError("error figuring out number of characters to convert to in toUTF16()");
+	wstr = (WCHAR *) uiAlloc(n * sizeof (WCHAR), "WCHAR[]");
+	if (MBTWC(str, wstr, n) != n)
+		logLastError("error converting from UTF-8 to UTF-16 in toUTF16()");
+	return wstr;
+}
+
+#define WCTMB(wstr, str, bufsiz) WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, bufsiz, NULL, NULL)
+
+char *toUTF8(const WCHAR *wstr)
+{
+	char *str;
+	int n;
+
+	n = WCTMB(wstr, NULL, 0);
+	if (n == 0)
+		logLastError("error figuring out number of characters to convert to in toUTF8()");
+	str = (char *) uiAlloc(n * sizeof (char), "char[]");
+	if (WCTMB(wstr, str, n) != n)
+		logLastError("error converting from UTF-16 to UTF-8 in toUTFF8()");
+	return str;
+}
+
+WCHAR *windowText(HWND hwnd)
+{
+	LRESULT n;
+	WCHAR *text;
+
+	n = SendMessageW(hwnd, WM_GETTEXTLENGTH, 0, 0);
+	// WM_GETTEXTLENGTH does not include the null terminator
+	text = (WCHAR *) uiAlloc((n + 1) * sizeof (WCHAR), "WCHAR[]");
+	// note the comparison: the size includes the null terminator, but the return does not
+	if (GetWindowTextW(hwnd, text, n + 1) != n)
+		logLastError("error getting window text in windowText()");
+	return text;
+}
+
+void uiFreeText(char *text)
+{
+	uiFree(text);
+}