From b7b224bd68f7c5a172bb3ee0d5b47c6756eae952 Mon Sep 17 00:00:00 2001
From: kichik <kichik@212acab6-be3b-0410-9dea-997c60f758d6>
Date: Thu, 19 Jul 2007 04:55:53 +0000
Subject: [PATCH] added rtl support

git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@5214 212acab6-be3b-0410-9dea-997c60f758d6
---
 Contrib/nsDialogs/rtl.c | 79 +++++++++++++++++++++++++++++++++++++++++
 Contrib/nsDialogs/rtl.h |  9 +++++
 2 files changed, 88 insertions(+)
 create mode 100644 Contrib/nsDialogs/rtl.c
 create mode 100644 Contrib/nsDialogs/rtl.h

diff --git a/Contrib/nsDialogs/rtl.c b/Contrib/nsDialogs/rtl.c
new file mode 100644
index 00000000..9ca28933
--- /dev/null
+++ b/Contrib/nsDialogs/rtl.c
@@ -0,0 +1,79 @@
+#include <windows.h>
+#include <commctrl.h>
+
+#include "defs.h"
+#include "nsis.h"
+
+extern struct nsDialog g_dialog;
+
+void __declspec(dllexport) SetRTL(HWND hwndParent, int string_size, char *variables, stack_t **stacktop, extra_parameters *extra)
+{
+  g_dialog.rtl = (BOOL) popint();
+}
+
+void NSDFUNC ConvertStyleToRTL(enum nsControlType type, LPDWORD style, LPDWORD exStyle)
+{
+  if (!g_dialog.rtl)
+    return;
+
+  switch (type)
+  {
+  case NSCTL_BUTTON:
+    *style ^= BS_LEFTTEXT | BS_RIGHT | BS_LEFT;
+
+    if ((*style & (BS_LEFT|BS_RIGHT)) == (BS_LEFT|BS_RIGHT))
+    {
+      *style ^= BS_LEFT | BS_RIGHT;
+      if (*style & (BS_RADIOBUTTON | BS_CHECKBOX | BS_USERBUTTON))
+      {
+        *style |= BS_RIGHT;
+      }
+    }
+    break;
+
+  case NSCTL_EDIT:
+    if ((*style & ES_CENTER) == 0)
+    {
+      *style ^= ES_RIGHT;
+    }
+    break;
+
+  case NSCTL_STATIC:
+    if ((*style & SS_TYPEMASK) == SS_LEFT || (*style & SS_TYPEMASK) == SS_LEFTNOWORDWRAP)
+    {
+      *style &= ~SS_TYPEMASK;
+      *style |= SS_RIGHT;
+    }
+    else if ((*style & SS_TYPEMASK) == SS_ICON) {
+      *style |= SS_CENTERIMAGE;
+    }
+    break;
+
+  case NSCTL_RICHEDIT:
+  case NSCTL_RICHEDIT2:
+    if ((*style & ES_CENTER) == 0)
+    {
+      *style ^= ES_RIGHT;
+    }
+    break;
+
+  case NSCTL_TREE:
+    *style |= TVS_RTLREADING;
+    *exStyle |= WS_EX_RIGHT;
+    break;
+
+  default:
+    *exStyle |= WS_EX_RIGHT;
+    break;
+  }
+
+  *exStyle |= WS_EX_RTLREADING | WS_EX_LEFTSCROLLBAR;
+}
+
+void NSDFUNC ConvertPosToRTL(int *x, int width, int dialogWidth)
+{
+  if (!g_dialog.rtl)
+    return;
+
+  *x = dialogWidth - width - *x;
+}
diff --git a/Contrib/nsDialogs/rtl.h b/Contrib/nsDialogs/rtl.h
new file mode 100644
index 00000000..b6e920ca
--- /dev/null
+++ b/Contrib/nsDialogs/rtl.h
@@ -0,0 +1,9 @@
+#ifndef __NS_DIALOGS__RTL_H__
+#define __NS_DIALOGS__RTL_H__
+
+#include "defs.h"
+
+void NSDFUNC ConvertStyleToRTL(enum nsControlType type, LPDWORD style, LPDWORD exStyle);
+void NSDFUNC ConvertPosToRTL(int *x, int width, int dialogWidth);
+
+#endif//__NS_DIALOGS__RTL_H__