First Checked In.

layout/html/forms/src/nsGfxCheckboxControlFrame.cpp

@@ -0,0 +1,151 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+#include "nsGfxCheckboxControlFrame.h"
+#include "nsICheckButton.h"
+#include "nsHTMLAtoms.h"
+#include "nsHTMLParts.h"
+#include "nsFormFrame.h"
+#include "nsIFormControl.h"
+#include "nsIContent.h"
+#include "nsWidgetsCID.h"
+#include "nsIComponentManager.h"
+
+
+
+nsresult
+NS_NewGfxCheckboxControlFrame(nsIFrame** aNewFrame)
+{
+  NS_PRECONDITION(aNewFrame, "null OUT ptr");
+  if (nsnull == aNewFrame) {
+    return NS_ERROR_NULL_POINTER;
+  }
+  nsGfxCheckboxControlFrame* it = new nsGfxCheckboxControlFrame;
+  if (!it) {
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+  *aNewFrame = it;
+  return NS_OK;
+}
+
+nsGfxCheckboxControlFrame::nsGfxCheckboxControlFrame()
+{
+   // Initialize GFX-rendered state
+  mMouseDownOnCheckbox = PR_FALSE;
+  mChecked = PR_FALSE;
+}
+
+void 
+nsGfxCheckboxControlFrame::MouseClicked(nsIPresContext* aPresContext) 
+{
+  mMouseDownOnCheckbox = PR_FALSE;
+  Inherited::MouseClicked(aPresContext);
+}
+
+void
+nsGfxCheckboxControlFrame::PaintCheckBox(nsIPresContext& aPresContext,
+                  nsIRenderingContext& aRenderingContext,
+                  const nsRect& aDirtyRect,
+                  nsFramePaintLayer aWhichLayer)
+{
+  aRenderingContext.PushState();
+
+  float p2t;
+  aPresContext.GetScaledPixelsToTwips(&p2t);
+
+  PRBool checked = PR_FALSE;
+
+    // Get current checked state through content model.
+    // XXX: This is very inefficient, but it is necessary in the case of printing.
+    // During printing the Paint is called but the actual state of the checkbox
+    // is in a frame in presentation shell 0.
+  /*XXXnsresult result = */GetCurrentCheckState(&checked);
+  if (PR_TRUE == checked) {
+      // Draw check mark
+    const nsStyleColor* color = (const nsStyleColor*)
+      mStyleContext->GetStyleData(eStyleStruct_Color);
+    aRenderingContext.SetColor(color->mColor);
+    nsFormControlHelper::PaintCheckMark(aRenderingContext,
+                         p2t, mRect.width, mRect.height);
+   
+  }
+  PRBool clip;
+  aRenderingContext.PopState(clip);
+}
+
+
+NS_METHOD 
+nsGfxCheckboxControlFrame::Paint(nsIPresContext& aPresContext,
+                              nsIRenderingContext& aRenderingContext,
+                              const nsRect& aDirtyRect,
+                              nsFramePaintLayer aWhichLayer)
+{
+
+  const nsStyleDisplay* disp = (const nsStyleDisplay*)
+	mStyleContext->GetStyleData(eStyleStruct_Display);
+	if (!disp->mVisible)
+		return NS_OK;
+
+    // Paint the background
+  Inherited::Paint(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer);
+  if (NS_FRAME_PAINT_LAYER_FOREGROUND == aWhichLayer) {
+      // Paint the checkmark 
+    PaintCheckBox(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer);
+  }
+  return NS_OK;
+}
+
+NS_METHOD nsGfxCheckboxControlFrame::HandleEvent(nsIPresContext& aPresContext, 
+                                              nsGUIEvent* aEvent,
+                                              nsEventStatus& aEventStatus)
+{
+  if (nsEventStatus_eConsumeNoDefault == aEventStatus) {
+    return NS_OK;
+  }
+
+    // Handle GFX rendered widget Mouse Down event
+  PRInt32 type;
+  GetType(&type);
+  switch (aEvent->message) {
+    case NS_MOUSE_LEFT_BUTTON_DOWN:
+      mMouseDownOnCheckbox = PR_TRUE;
+  //XXX: TODO render gray rectangle on mouse down  
+    break;
+
+    case NS_MOUSE_EXIT:
+      mMouseDownOnCheckbox = PR_FALSE;
+  //XXX: TO DO clear gray rectangle on mouse up 
+    break;
+
+    }
+
+  return(Inherited::HandleEvent(aPresContext, aEvent, aEventStatus));
+}
+
+
+PRBool nsGfxCheckboxControlFrame::GetCheckboxState()
+{
+  return mChecked;
+}
+
+void nsGfxCheckboxControlFrame::SetCheckboxState(PRBool aValue)
+{
+  mChecked = aValue;
+	nsFormControlHelper::ForceDrawFrame(this);
+}
+