First Checked In.

git-svn-id: svn://10.0.0.236/trunk@42405 18797224-902f-48f8-a5cc-f745e15eee43
1999-08-06 05:13:07 +00:00
parent 6a1d462764
commit 36f4cf1552
24 changed files with 4159 additions and 0 deletions
--- a/mozilla/layout/html/forms/src/nsNativeCheckboxControlFram.cpp
+++ b/mozilla/layout/html/forms/src/nsNativeCheckboxControlFram.cpp
@@ -0,0 +1,157 @@
+/* -*- 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 "nsNativeCheckboxControlFram.h"
+#include "nsICheckButton.h"
+#include "nsHTMLAtoms.h"
+#include "nsHTMLParts.h"
+#include "nsFormFrame.h"
+#include "nsIFormControl.h"
+#include "nsIContent.h"
+#include "nsILookAndFeel.h"
+#include "nsWidgetsCID.h"
+#include "nsIComponentManager.h"
+
+
+#define NS_DEFAULT_CHECKBOX_SIZE 12
+
+static NS_DEFINE_IID(kICheckButtonIID, NS_ICHECKBUTTON_IID);
+static NS_DEFINE_IID(kLookAndFeelCID,  NS_LOOKANDFEEL_CID);
+static NS_DEFINE_IID(kILookAndFeelIID, NS_ILOOKANDFEEL_IID);
+
+
+nsresult
+NS_NewNativeCheckboxControlFrame(nsIFrame** aNewFrame)
+{
+  NS_PRECONDITION(aNewFrame, "null OUT ptr");
+  if (nsnull == aNewFrame) {
+    return NS_ERROR_NULL_POINTER;
+  }
+  nsNativeCheckboxControlFrame* it = new nsNativeCheckboxControlFrame;
+  if (!it) {
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+  *aNewFrame = it;
+  return NS_OK;
+}
+
+
+nscoord 
+nsNativeCheckboxControlFrame::GetCheckboxSize(float aPixToTwip) const
+{
+  nsILookAndFeel * lookAndFeel;
+  PRInt32 checkboxSize = 0;
+  if (NS_OK == nsComponentManager::CreateInstance(kLookAndFeelCID, nsnull, kILookAndFeelIID, (void**)&lookAndFeel)) {
+   lookAndFeel->GetMetric(nsILookAndFeel::eMetric_CheckboxSize,  checkboxSize);
+   NS_RELEASE(lookAndFeel);
+  }
+ if (checkboxSize == 0)
+   checkboxSize = NS_DEFAULT_CHECKBOX_SIZE;
+  return NSIntPixelsToTwips(checkboxSize, aPixToTwip);
+}
+
+void
+nsNativeCheckboxControlFrame::GetDesiredSize(nsIPresContext*          aPresContext,
+                                       const nsHTMLReflowState& aReflowState,
+                                       nsHTMLReflowMetrics&     aDesiredLayoutSize,
+                                       nsSize&                  aDesiredWidgetSize)
+{
+  float p2t;
+  aPresContext->GetScaledPixelsToTwips(&p2t);
+
+  aDesiredWidgetSize.width  = GetCheckboxSize(p2t);
+  aDesiredWidgetSize.height = aDesiredWidgetSize.width;
+  aDesiredLayoutSize.width  = aDesiredWidgetSize.width;
+  aDesiredLayoutSize.height = aDesiredWidgetSize.height;
+  aDesiredLayoutSize.ascent = aDesiredLayoutSize.height;
+  aDesiredLayoutSize.descent = 0;
+  if (aDesiredLayoutSize.maxElementSize) {
+    aDesiredLayoutSize.maxElementSize->width  = aDesiredLayoutSize.width;
+    aDesiredLayoutSize.maxElementSize->height = aDesiredLayoutSize.height;
+  }
+}
+
+
+void 
+nsNativeCheckboxControlFrame::PostCreateWidget(nsIPresContext* aPresContext, nscoord& aWidth, nscoord& aHeight)
+{
+	Inherited::PostCreateWidget(aPresContext, aWidth, aHeight);
+
+  if (mWidget != nsnull) {
+    SetColors(*aPresContext);
+    mWidget->Enable(!nsFormFrame::GetDisabled(this));
+  }              
+}
+
+NS_IMETHODIMP
+nsNativeCheckboxControlFrame::AttributeChanged(nsIPresContext* aPresContext,
+                                         nsIContent*     aChild,
+                                         nsIAtom*        aAttribute,
+                                         PRInt32         aHint)
+{
+  nsresult result = NS_OK;
+  if (mWidget) {
+    if (nsHTMLAtoms::checked == aAttribute) {
+      nsICheckButton* button = nsnull;
+      result = mWidget->QueryInterface(GetIID(), (void**)&button);
+      if ((NS_SUCCEEDED(result)) && (nsnull != button)) {
+        PRBool checkedAttr;
+        GetCurrentCheckState(&checkedAttr);
+        PRBool checkedPrevState;
+        button->GetState(checkedPrevState);
+        if (checkedAttr != checkedPrevState) {
+          button->SetState(checkedAttr);
+        }
+        NS_RELEASE(button);
+      }
+    }
+    // Allow the base class to handle common attributes supported
+    // by all form elements... 
+    else {
+      result = Inherited::AttributeChanged(aPresContext, aChild, aAttribute, aHint);
+    }
+  }
+  return result;
+}
+
+PRBool nsNativeCheckboxControlFrame::GetCheckboxState()
+{
+	PRBool state = PR_FALSE;
+
+  nsICheckButton* checkBox = nsnull;
+  if (nsnull != mWidget) {
+     // native-widget
+      if (NS_SUCCEEDED(mWidget->QueryInterface(kICheckButtonIID,(void**)&checkBox))) {
+        checkBox->GetState(state);
+       NS_RELEASE(checkBox);
+      }
+  }
+  return state;
+}
+
+
+void nsNativeCheckboxControlFrame::SetCheckboxState(PRBool aValue)
+{
+  if (nsnull != mWidget) {
+    nsICheckButton* checkBox = nsnull;
+    if (NS_OK == mWidget->QueryInterface(kICheckButtonIID,(void**)&checkBox)) {
+      checkBox->SetState(aValue);
+      NS_RELEASE(checkBox);
+    }
+  }
+}