зеркало из https://github.com/mozilla/gecko-dev.git
395 строки
11 KiB
C++
395 строки
11 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
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#include "nsButtonFrameRenderer.h"
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#include "nsIRenderingContext.h"
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#include "nsCSSRendering.h"
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#include "nsIPresContext.h"
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#include "nsGenericHTMLElement.h"
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#include "nsIView.h"
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#include "nsIViewManager.h"
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#include "nsHTMLAtoms.h"
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#define ACTIVE "active"
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#define HOVER "hover"
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#define FOCUS "focus"
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MOZ_DECL_CTOR_COUNTER(nsButtonFrameRenderer);
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nsButtonFrameRenderer::nsButtonFrameRenderer()
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{
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MOZ_COUNT_CTOR(nsButtonFrameRenderer);
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mNameSpace = kNameSpaceID_HTML;
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}
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nsButtonFrameRenderer::~nsButtonFrameRenderer()
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{
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MOZ_COUNT_DTOR(nsButtonFrameRenderer);
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}
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void
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nsButtonFrameRenderer::SetNameSpace(PRInt32 aNameSpace)
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{
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mNameSpace = aNameSpace;
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}
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void
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nsButtonFrameRenderer::SetFrame(nsFrame* aFrame, nsIPresContext* aPresContext)
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{
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mFrame = aFrame;
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ReResolveStyles(aPresContext);
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}
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nsIFrame*
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nsButtonFrameRenderer::GetFrame()
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{
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return mFrame;
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}
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PRInt32
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nsButtonFrameRenderer::GetNameSpace()
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{
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return mNameSpace;
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}
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void
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nsButtonFrameRenderer::SetDisabled(PRBool aDisabled, PRBool notify)
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{
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// get the content
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nsCOMPtr<nsIContent> content;
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mFrame->GetContent(getter_AddRefs(content));
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if (aDisabled)
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content->SetAttribute(mNameSpace, nsHTMLAtoms::disabled, nsAutoString(), notify);
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else
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content->UnsetAttribute(mNameSpace, nsHTMLAtoms::disabled, notify);
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}
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PRBool
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nsButtonFrameRenderer::isDisabled()
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{
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// get the content
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nsCOMPtr<nsIContent> content;
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mFrame->GetContent(getter_AddRefs(content));
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nsAutoString value;
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if (NS_CONTENT_ATTR_HAS_VALUE == content->GetAttribute(mNameSpace, nsHTMLAtoms::disabled, value))
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return PR_TRUE;
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return PR_FALSE;
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}
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void
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nsButtonFrameRenderer::Redraw(nsIPresContext* aPresContext)
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{
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nsRect rect;
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mFrame->GetRect(rect);
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rect.x = 0;
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rect.y = 0;
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mFrame->Invalidate(aPresContext, rect, PR_FALSE);
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}
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void
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nsButtonFrameRenderer::PaintButton (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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const nsRect& aRect)
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{
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//printf("painted width='%d' height='%d'\n",aRect.width, aRect.height);
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// draw the border and background inside the focus and outline borders
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PaintBorderAndBackground(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer, aRect);
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// draw the focus and outline borders
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PaintOutlineAndFocusBorders(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer, aRect);
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}
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void
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nsButtonFrameRenderer::PaintOutlineAndFocusBorders(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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const nsRect& aRect)
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{
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// once we have all that let draw the focus if we have it. We will need to draw 2 focuses.
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// the inner and the outer. This is so we can do any kind of look and feel some buttons have
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// focus on the outside like mac and motif. While others like windows have it inside (dotted line).
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// Usually only one will be specifed. But I guess you could have both if you wanted to.
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nsRect rect;
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if (NS_FRAME_PAINT_LAYER_BACKGROUND == aWhichLayer)
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{
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if (mOuterFocusStyle) {
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// ---------- paint the outer focus border -------------
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GetButtonOuterFocusRect(aRect, rect);
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const nsStyleSpacing* spacing = (const nsStyleSpacing*)mOuterFocusStyle ->GetStyleData(eStyleStruct_Spacing);
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nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, mFrame,
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aDirtyRect, rect, *spacing, mOuterFocusStyle, 0);
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}
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// ---------- paint the inner focus border -------------
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if (mInnerFocusStyle) {
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GetButtonInnerFocusRect(aRect, rect);
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const nsStyleSpacing* spacing = (const nsStyleSpacing*)mInnerFocusStyle ->GetStyleData(eStyleStruct_Spacing);
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nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, mFrame,
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aDirtyRect, rect, *spacing, mInnerFocusStyle, 0);
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}
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}
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}
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void
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nsButtonFrameRenderer::PaintBorderAndBackground(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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const nsRect& aRect)
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{
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if (NS_FRAME_PAINT_LAYER_BACKGROUND != aWhichLayer)
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return;
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// get the button rect this is inside the focus and outline rects
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nsRect buttonRect;
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GetButtonRect(aRect, buttonRect);
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nsCOMPtr<nsIStyleContext> context;
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mFrame->GetStyleContext(getter_AddRefs(context));
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// get the styles
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const nsStyleSpacing* spacing =
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(const nsStyleSpacing*)context->GetStyleData(eStyleStruct_Spacing);
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const nsStyleColor* color =
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(const nsStyleColor*)context->GetStyleData(eStyleStruct_Color);
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// paint the border and background
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nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, mFrame,
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aDirtyRect, buttonRect, *color, *spacing, 0, 0);
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nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, mFrame,
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aDirtyRect, buttonRect, *spacing, context, 0);
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}
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void
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nsButtonFrameRenderer::GetButtonOutlineRect(const nsRect& aRect, nsRect& outlineRect)
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{
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outlineRect = aRect;
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outlineRect.Inflate(GetButtonOutlineBorderAndPadding());
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}
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void
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nsButtonFrameRenderer::GetButtonOuterFocusRect(const nsRect& aRect, nsRect& focusRect)
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{
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focusRect = aRect;
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}
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void
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nsButtonFrameRenderer::GetButtonRect(const nsRect& aRect, nsRect& r)
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{
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r = aRect;
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r.Deflate(GetButtonOuterFocusBorderAndPadding());
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}
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void
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nsButtonFrameRenderer::GetButtonInnerFocusRect(const nsRect& aRect, nsRect& focusRect)
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{
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GetButtonRect(aRect, focusRect);
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focusRect.Deflate(GetButtonBorderAndPadding());
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focusRect.Deflate(GetButtonInnerFocusMargin());
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}
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void
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nsButtonFrameRenderer::GetButtonContentRect(const nsRect& aRect, nsRect& r)
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{
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GetButtonInnerFocusRect(aRect, r);
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r.Deflate(GetButtonInnerFocusBorderAndPadding());
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}
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nsMargin
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nsButtonFrameRenderer::GetButtonOuterFocusBorderAndPadding()
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{
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nsMargin focusBorderAndPadding(0,0,0,0);
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if (mOuterFocusStyle) {
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// get the outer focus border and padding
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const nsStyleSpacing* spacing = (const nsStyleSpacing*)mOuterFocusStyle ->GetStyleData(eStyleStruct_Spacing);
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if (!spacing->GetBorderPadding(focusBorderAndPadding)) {
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NS_NOTYETIMPLEMENTED("percentage border");
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}
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}
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return focusBorderAndPadding;
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}
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nsMargin
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nsButtonFrameRenderer::GetButtonBorderAndPadding()
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{
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nsCOMPtr<nsIStyleContext> context;
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mFrame->GetStyleContext(getter_AddRefs(context));
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nsMargin borderAndPadding(0,0,0,0);
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const nsStyleSpacing* spacing = (const nsStyleSpacing*)context ->GetStyleData(eStyleStruct_Spacing);
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if (!spacing->GetBorderPadding(borderAndPadding)) {
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NS_NOTYETIMPLEMENTED("percentage border");
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}
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return borderAndPadding;
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}
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/**
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* Gets the size of the buttons border this is the union of the normal and disabled borders.
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*/
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nsMargin
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nsButtonFrameRenderer::GetButtonInnerFocusMargin()
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{
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nsMargin innerFocusMargin(0,0,0,0);
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if (mInnerFocusStyle) {
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// get the outer focus border and padding
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const nsStyleSpacing* spacing = (const nsStyleSpacing*)mInnerFocusStyle ->GetStyleData(eStyleStruct_Spacing);
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spacing->GetMargin(innerFocusMargin);
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}
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return innerFocusMargin;
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}
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nsMargin
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nsButtonFrameRenderer::GetButtonInnerFocusBorderAndPadding()
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{
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nsMargin innerFocusBorderAndPadding(0,0,0,0);
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if (mInnerFocusStyle) {
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// get the outer focus border and padding
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const nsStyleSpacing* spacing = (const nsStyleSpacing*)mInnerFocusStyle ->GetStyleData(eStyleStruct_Spacing);
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if (!spacing->GetBorderPadding(innerFocusBorderAndPadding)) {
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NS_NOTYETIMPLEMENTED("percentage border");
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}
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}
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return innerFocusBorderAndPadding;
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}
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nsMargin
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nsButtonFrameRenderer::GetButtonOutlineBorderAndPadding()
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{
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nsMargin borderAndPadding(0,0,0,0);
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return borderAndPadding;
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}
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// gets the full size of our border with all the focus borders
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nsMargin
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nsButtonFrameRenderer::GetFullButtonBorderAndPadding()
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{
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return GetAddedButtonBorderAndPadding() + GetButtonBorderAndPadding();
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}
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// gets all the focus borders and padding that will be added to the regular border
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nsMargin
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nsButtonFrameRenderer::GetAddedButtonBorderAndPadding()
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{
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return GetButtonOuterFocusBorderAndPadding() + GetButtonInnerFocusMargin() + GetButtonInnerFocusBorderAndPadding();
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}
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/**
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* Call this when styles change
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*/
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void
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nsButtonFrameRenderer::ReResolveStyles(nsIPresContext* aPresContext)
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{
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// get all the styles
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nsCOMPtr<nsIContent> content;
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mFrame->GetContent(getter_AddRefs(content));
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nsCOMPtr<nsIStyleContext> context;
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mFrame->GetStyleContext(getter_AddRefs(context));
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// style for the inner such as a dotted line (Windows)
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aPresContext->ProbePseudoStyleContextFor(content, nsHTMLAtoms::mozFocusInnerPseudo, context,
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PR_FALSE,
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getter_AddRefs(mInnerFocusStyle));
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// style for outer focus like a ridged border (MAC).
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aPresContext->ProbePseudoStyleContextFor(content, nsHTMLAtoms::mozFocusOuterPseudo, context,
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PR_FALSE,
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getter_AddRefs(mOuterFocusStyle));
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}
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nsresult
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nsButtonFrameRenderer::GetStyleContext(PRInt32 aIndex, nsIStyleContext** aStyleContext) const
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{
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NS_PRECONDITION(nsnull != aStyleContext, "null OUT parameter pointer");
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if (aIndex < 0) {
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return NS_ERROR_INVALID_ARG;
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}
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*aStyleContext = nsnull;
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switch (aIndex) {
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case NS_BUTTON_RENDERER_FOCUS_INNER_CONTEXT_INDEX:
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*aStyleContext = mInnerFocusStyle;
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NS_IF_ADDREF(*aStyleContext);
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break;
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case NS_BUTTON_RENDERER_FOCUS_OUTER_CONTEXT_INDEX:
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*aStyleContext = mOuterFocusStyle;
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NS_IF_ADDREF(*aStyleContext);
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break;
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default:
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return NS_ERROR_INVALID_ARG;
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}
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return NS_OK;
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}
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nsresult
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nsButtonFrameRenderer::SetStyleContext(PRInt32 aIndex, nsIStyleContext* aStyleContext)
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{
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if (aIndex < 0) {
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return NS_ERROR_INVALID_ARG;
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}
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switch (aIndex) {
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case NS_BUTTON_RENDERER_FOCUS_INNER_CONTEXT_INDEX:
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mInnerFocusStyle = aStyleContext;
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break;
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case NS_BUTTON_RENDERER_FOCUS_OUTER_CONTEXT_INDEX:
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mOuterFocusStyle = aStyleContext;
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break;
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}
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return NS_OK;
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}
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