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