From ffc14a60cfd1ad93dc54fab586ee20ca14b548b9 Mon Sep 17 00:00:00 2001
From: george82 <george82@3789f03b-4d11-0410-bbf8-ca57d06f2519>
Date: Tue, 5 Sep 2006 06:51:41 +0000
Subject: [PATCH] Added the autoScaling mode implementation to the vncviewer.

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@645 3789f03b-4d11-0410-bbf8-ca57d06f2519
---
 win/vncviewer/CConn.cxx         |  9 +++++++--
 win/vncviewer/DesktopWindow.cxx | 23 ++++++++++++++++-------
 win/vncviewer/DesktopWindow.h   |  6 ++++++
 3 files changed, 29 insertions(+), 9 deletions(-)

diff --git a/win/vncviewer/CConn.cxx b/win/vncviewer/CConn.cxx
index 9f597ed0..2fb8d2d3 100644
--- a/win/vncviewer/CConn.cxx
+++ b/win/vncviewer/CConn.cxx
@@ -150,7 +150,12 @@ CConn::applyOptions(CConnOptions& opt) {
     window->setMenuKey(options.menuKey);
     window->setDisableWinKeys(options.disableWinKeys);
     window->setShowToolbar(options.showToolbar);
-    window->setDesktopScale(options.scale);
+    if (options.autoScaling) {
+      window->setAutoScaling(true);
+    } else {
+      window->setAutoScaling(false);
+      window->setDesktopScale(options.scale);
+    }
     if (!options.useLocalCursor)
       window->setCursor(0, 0, Point(), 0, 0);
   }
@@ -611,9 +616,9 @@ void CConn::serverInit() {
 
   // Show the window
   window = new DesktopWindow(this);
-  applyOptions(options);
   window->setName(cp.name());
   window->setSize(cp.width, cp.height);
+  applyOptions(options);
 
   // Save the server's current format
   serverDefaultPF = cp.pf();
diff --git a/win/vncviewer/DesktopWindow.cxx b/win/vncviewer/DesktopWindow.cxx
index babcd45b..00f4c10f 100644
--- a/win/vncviewer/DesktopWindow.cxx
+++ b/win/vncviewer/DesktopWindow.cxx
@@ -181,7 +181,7 @@ FrameClass frameClass;
 
 DesktopWindow::DesktopWindow(Callback* cb) 
   : buffer(0),
-    showToolbar(false),
+    showToolbar(false), autoScaling(false),
     client_size(0, 0, 16, 16), window_size(0, 0, 32, 32),
     cursorVisible(false), cursorAvailable(false), cursorInBuffer(false),
     systemCursorVisible(true), trackingMouseLeave(false),
@@ -406,7 +406,7 @@ DesktopWindow::processMessage(UINT msg, WPARAM wParam, LPARAM lParam) {
   case WM_WINDOWPOSCHANGING:
     {
       WINDOWPOS* wpos = (WINDOWPOS*)lParam;
-      if (wpos->flags & SWP_NOSIZE)
+      if ((wpos->flags & SWP_NOSIZE) || isAutoScaling())
         break;
 
       // Work out how big the window should ideally be
@@ -469,11 +469,16 @@ DesktopWindow::processMessage(UINT msg, WPARAM wParam, LPARAM lParam) {
       GetClientRect(frameHandle, &r);
       client_size = Rect(r.left, r.top, r.right, r.bottom);
 
-      // Determine whether scrollbars are required
-      calculateScrollBars();
+      // Perform the AutoScaling operation
+      if (isAutoScaling()) {
+        fitBufferToWindow(false);
+      } else {
+        // Determine whether scrollbars are required
+        calculateScrollBars();
+      }
 
       // Redraw if required
-      if ((!old_offset.equals(desktopToClient(Point(0, 0)))))
+      if ((!old_offset.equals(desktopToClient(Point(0, 0)))) || isAutoScaling())
         InvalidateRect(frameHandle, 0, TRUE);
     }
     break;
@@ -791,8 +796,8 @@ DesktopWindow::processFrameMessage(UINT msg, WPARAM wParam, LPARAM lParam) {
         // Send a pointer event to the server
         oldpos = p;
         if (buffer->isScaling()) {
-          p.x /= double(buffer->getScale()) / 100.0;
-          p.y /= double(buffer->getScale()) / 100.0;
+          p.x /= buffer->getScaleRatio();
+          p.y /= buffer->getScaleRatio();
         }
         ptr.pointerEvent(callback, p, mask);
 #ifdef WM_MOUSEWHEEL
@@ -917,6 +922,10 @@ DesktopWindow::setSize(int w, int h) {
   // Resize the backing buffer
   buffer->setSize(w, h);
 
+  // Calculate the pixel buffer aspect correlation. It's used
+  // for the autoScaling operation.
+  aspect_corr = (double)w / h;
+
   // If the window is not maximised or full-screen then resize it
   if (!(GetWindowLong(handle, GWL_STYLE) & WS_MAXIMIZE) && !fullscreenActive) {
     // Resize the window to the required size
diff --git a/win/vncviewer/DesktopWindow.h b/win/vncviewer/DesktopWindow.h
index f0db4275..c24b0ced 100644
--- a/win/vncviewer/DesktopWindow.h
+++ b/win/vncviewer/DesktopWindow.h
@@ -82,6 +82,11 @@ namespace rfb {
       PixelFormat getPF() const { return buffer->getPF(); }
       void setSize(int w, int h);
       void setColour(int i, int r, int g, int b) {buffer->setColour(i, r, g, b);}
+      void setAutoScaling(bool as) { 
+        autoScaling = as;
+        if (as) fitBufferToWindow();
+      }
+      bool isAutoScaling() const { return autoScaling; }
       void setDesktopScale(int scale);
       void fitBufferToWindow(bool repaint = true);
 
@@ -239,6 +244,7 @@ namespace rfb {
       win32::ScaledDIBSectionBuffer* buffer;
       double aspect_corr;
       bool has_focus;
+      bool autoScaling;
       Rect window_size;
       Rect client_size;
       Point scrolloffset;
-- 
2.39.5