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498 lines
12 KiB
C++
498 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 4; 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 <LScrollBar.h>
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#include "CHyperScroller.h"
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#include "UGraphicGizmos.h"
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#include "macgui.h"
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const ResIDT cSizeBoxIconID = 29200;
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//------------------------------------------------------------------------------
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// CHyperScroller
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//------------------------------------------------------------------------------
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#define FOCUSBOXWIDTH 3
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#include "CHTMLView.h"
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CHyperScroller::CHyperScroller(LStream *inStream)
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: LScrollerView(inStream)
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{
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fVerticalBar = NULL;
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fHorizontalBar = NULL;
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mHandleGrowIconManually = false;
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ResetExpansion();
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}
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void CHyperScroller::ResetExpansion(void)
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{
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mExpanded.left = false;
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mExpanded.top = false;
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mExpanded.right = false;
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mExpanded.bottom = false;
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}
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void CHyperScroller::ExpandLeft(void)
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{
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mExpanded.left = true;
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}
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void CHyperScroller::ExpandTop(void)
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{
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mExpanded.top = true;
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}
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void CHyperScroller::ExpandRight(void)
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{
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mExpanded.right = true;
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}
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void CHyperScroller::ExpandBottom(void)
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{
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mExpanded.bottom = true;
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}
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void CHyperScroller::AdjustHyperViewBounds(void)
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{
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Assert_(mScrollingView);
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if (!mScrollingView)
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{
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return;
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}
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CHTMLView* theHyperView = dynamic_cast<CHTMLView*>(mScrollingView);
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SDimension16 theFrameSize;
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GetFrameSize(theFrameSize);
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SDimension16 theHyperSize = theFrameSize;
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if (!mExpanded.top)
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theHyperSize.height--;
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if (!mExpanded.left)
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theHyperSize.width--;
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if (!mExpanded.bottom)
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theHyperSize.height--;
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if (!mExpanded.right)
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theHyperSize.width--;
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if (mVerticalBar != NULL)
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{
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theHyperSize.width -= (ScrollBar_Size - 1);
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if (mExpanded.right)
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theHyperSize.width--;
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}
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if (mHorizontalBar != NULL)
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{
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theHyperSize.height -= (ScrollBar_Size - 1);
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if (mExpanded.bottom)
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theHyperSize.height--;
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}
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Int32 theHorizOffset = 1;
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Int32 theVertOffset = 1;
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if (mExpanded.top)
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theVertOffset--;
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if (mExpanded.left)
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theHorizOffset--;
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mScrollingView->PlaceInSuperFrameAt(theHorizOffset, theVertOffset, false);
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mScrollingView->ResizeFrameTo(theHyperSize.width, theHyperSize.height, false);
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}
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void CHyperScroller::AdjustScrollBars()
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{
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Boolean need_inherited_AdjustScrollbars = true;
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/*
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If there is no scrolling view, then we don't adjust anything (even though
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you might think we should) because there probably is about to be a scrolling
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view, and adjusting now will mess things up...
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*/
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if ( mScrollingView )
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{
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Boolean hasHorizontal = mHorizontalBar != NULL;
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Boolean hasVertical = mVerticalBar != NULL;
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// Unless told otherwise, assume we've got what we need.
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Boolean needHorizontal = hasHorizontal;
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Boolean needVertical = hasVertical;
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CHTMLView* htmlView = dynamic_cast<CHTMLView*>(mScrollingView);
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if ( !htmlView || (htmlView->GetScrollMode()==LO_SCROLL_AUTO) )
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{
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switch ( htmlView->GetScrollMode() )
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{
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case LO_SCROLL_NO:
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needHorizontal = needVertical = false;
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break;
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case LO_SCROLL_YES:
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needHorizontal = needVertical = true;
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break;
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case LO_SCROLL_AUTO:
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{
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/*
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...if there is a scrolling view, and either it's not a |CHTMLView| or
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if it is a |CHTMLView|, it allows scrollbars... then figure out if we
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need scrollbars based on the size of the frame and image
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*/
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SDimension16 frameSize;
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mScrollingView->GetFrameSize(frameSize);
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SDimension32 imageSize;
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mScrollingView->GetImageSize(imageSize);
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needHorizontal = imageSize.width > frameSize.width;
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needVertical = imageSize.height > frameSize.height;
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}
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break;
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}
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}
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if ( (hasHorizontal != needHorizontal) || (hasVertical != needVertical) )
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{
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ShowScrollbars(needHorizontal, needVertical);
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need_inherited_AdjustScrollbars = false; // ...since |ShowScrollbars| calls it.
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}
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}
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if ( need_inherited_AdjustScrollbars )
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Inherited::AdjustScrollBars();
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}
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Boolean CHyperScroller::ScrolledToMaxVerticalExtent()
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{
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if ( mVerticalBar )
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return ( mVerticalBar->GetValue() == mVerticalBar->GetMaxValue() );
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return true;
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}
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Boolean CHyperScroller::ScrolledToMinVerticalExtent()
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{
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if ( mVerticalBar )
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return ( mVerticalBar->GetValue() == 0 );
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return true;
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}
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void CHyperScroller::RefreshSelf()
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/*
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...refresh just the area occupied by me and my scrollers,
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and not by my mScrollingView
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*/
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{
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if ( mHorizontalBar )
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mHorizontalBar->Refresh();
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if ( mVerticalBar )
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mVerticalBar->Refresh();
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// if ( mHorizontalBar && mVerticalBar )
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if ((mHandleGrowIconManually && (mVerticalBar || mHorizontalBar)) || (mVerticalBar && mHorizontalBar))
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{
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Rect R = CalcDummySizeBox();
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LocalToPortPoint(topLeft(R));
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LocalToPortPoint(botRight(R));
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InvalPortRect(&R);
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}
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}
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// <20><> display control
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// Show/hide the controls
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// Adjust the hyperview size
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void CHyperScroller::ShowScrollbars( Boolean horiOn, Boolean vertOn )
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{
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Boolean hasHorizontal = mHorizontalBar != NULL;
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Boolean hasVertical = mVerticalBar != NULL;
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// <20> quick check
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if ((hasHorizontal == horiOn) && (hasVertical == vertOn))
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return;
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SDimension16 theFrameSize;
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GetFrameSize(theFrameSize);
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// <20> vertical scrollbar
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{
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// <20> adjustment for visiblity of horizontal scroller
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// <20> show/hide
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if (mVerticalBar && !vertOn)
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{
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mVerticalBar->Hide();
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fVerticalBar = mVerticalBar;
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mVerticalBar = NULL;
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}
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else if (!mVerticalBar && vertOn)
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{
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mVerticalBar = fVerticalBar;
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fVerticalBar = NULL;
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if (mVerticalBar)
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mVerticalBar->Show();
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}
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Int32 theVerticalSize = theFrameSize.height;
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// if (hasHorizontal || horiOn)
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if (mHandleGrowIconManually || hasHorizontal || horiOn)
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theVerticalSize -= (ScrollBar_Size - 1);
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LScrollBar* theBar = (mVerticalBar != NULL) ? mVerticalBar : fVerticalBar;
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StFocusAndClipIfHidden theControlClip(theBar);
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theBar->PlaceInSuperFrameAt((theFrameSize.width - ScrollBar_Size), 0, false);
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theBar->ResizeFrameTo(ScrollBar_Size, theVerticalSize, false);
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if (mVerticalBar != NULL)
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mVerticalBar->Refresh();
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}
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// <20><>horizontal scrollbar
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{
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if (mHorizontalBar && !horiOn)
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{
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mHorizontalBar->Hide();
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fHorizontalBar = mHorizontalBar;
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mHorizontalBar = NULL;
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}
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else if (!mHorizontalBar && horiOn)
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{
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mHorizontalBar = fHorizontalBar;
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fHorizontalBar = NULL;
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if (mHorizontalBar)
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mHorizontalBar->Show();
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}
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Int32 theHorizontalSize = theFrameSize.width;
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// if (hasVertical || vertOn)
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if (mHandleGrowIconManually || hasVertical || vertOn)
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theHorizontalSize -= (ScrollBar_Size - 1);
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LPane* theBar = (mHorizontalBar != NULL) ? mHorizontalBar : fHorizontalBar;
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if ( theBar )
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{
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StFocusAndClipIfHidden theControlClip(theBar);
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theBar->PlaceInSuperFrameAt(0, (theFrameSize.height - ScrollBar_Size), false);
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theBar->ResizeFrameTo(theHorizontalSize, ScrollBar_Size, false);
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}
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if (mHorizontalBar != NULL)
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mHorizontalBar->Refresh();
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}
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if ( mScrollingView )
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AdjustHyperViewBounds();
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Inherited::AdjustScrollBars(); // call inherited AdjustScrollBars(), as mine could call _this_ routine back
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// <20> only refresh the little box. Refreshing the whole view causes flashes
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// if (HasScrollbars())
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if ((mHandleGrowIconManually && (mVerticalBar || mHorizontalBar)) || (mVerticalBar && mHorizontalBar))
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{
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Rect sizeBox = CalcDummySizeBox();
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sizeBox.top += mFrameLocation.v;
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sizeBox.bottom += mFrameLocation.v;
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sizeBox.left += mFrameLocation.h;
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sizeBox.right += mFrameLocation.h;
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InvalPortRect( &sizeBox );
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}
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}
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// Calculates the position of the dummy size box
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Rect CHyperScroller::CalcDummySizeBox()
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{
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Rect r;
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r.bottom = mFrameSize.height;
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r.right = mFrameSize.width;
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r.top = r.bottom - 16;
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r.left = r.right - 16;
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return r;
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}
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// This is the little box between the scrollers.
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// HyperView and windows draw it
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void CHyperScroller::DrawDummySizeBox()
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{
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// We need to erase that little rect above the grow box
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// if ( mHorizontalBar && mVerticalBar )
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if ((mHandleGrowIconManually && (mVerticalBar || mHorizontalBar)) || (mVerticalBar && mHorizontalBar))
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{
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if ( !FocusDraw() )
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return;
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Rect theDummyFrame = CalcDummySizeBox();
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if ( IsActive() )
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{
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if (!mHandleGrowIconManually)
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{
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SBevelColorDesc theTraits;
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UGraphicGizmos::LoadBevelTraits(1000, theTraits);
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::PmForeColor(theTraits.fillColor);
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::PaintRect(&theDummyFrame);
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::PmForeColor(eStdGrayBlack);
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::FrameRect(&theDummyFrame);
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::InsetRect(&theDummyFrame, 1, 1);
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UGraphicGizmos::BevelRect(theDummyFrame, 1, theTraits.topBevelColor, theTraits.bottomBevelColor);
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}
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else
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{
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::PlotIconID(&theDummyFrame, atAbsoluteCenter, ttNone, cSizeBoxIconID);
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}
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}
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else
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{
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::PmForeColor(eStdGrayWhite);
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theDummyFrame.top += 1;
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theDummyFrame.left += 1;
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::EraseRect(&theDummyFrame);
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}
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}
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}
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void CHyperScroller::DrawEmptyScroller( LScrollBar* scrollBar )
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{
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Rect frame;
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scrollBar->CalcPortFrameRect( frame );
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PortToLocalPoint( topLeft( frame ) );
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PortToLocalPoint( botRight( frame ) );
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::FrameRect( &frame );
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::InsetRect( &frame, 1, 1 );
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::EraseRect( &frame );
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}
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// Empty scrollbar drawing copied from LScroller
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// Also draws the frame if needed
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void CHyperScroller::DrawSelf(void)
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{
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StColorPenState::Normalize();
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Rect theFrame;
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CalcLocalFrameRect(theFrame);
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CHTMLView* theHyperView = dynamic_cast<CHTMLView*>(mScrollingView);
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Boolean bIsBorderless = theHyperView->IsBorderless();
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if ((!mExpanded.top) && (!bIsBorderless))
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{
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::MoveTo(theFrame.left, theFrame.top);
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::LineTo(theFrame.right, theFrame.top);
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}
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if ((!mExpanded.left) && (!bIsBorderless))
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{
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::MoveTo(theFrame.left, theFrame.top);
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::LineTo(theFrame.left, theFrame.bottom);
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}
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if ((!mExpanded.bottom) && (!bIsBorderless))
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{
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::MoveTo(theFrame.left, theFrame.bottom - 1);
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::LineTo(theFrame.right, theFrame.bottom - 1);
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}
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if ((!mExpanded.right) && (!bIsBorderless))
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{
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::MoveTo(theFrame.right - 1, theFrame.top);
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::LineTo(theFrame.right - 1, theFrame.bottom - 1);
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}
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if (!IsActive())
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{
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UGraphics::SetFore(CPrefs::Black);
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UGraphics::SetBack(CPrefs::WindowBkgnd);
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if (mVerticalBar)
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DrawEmptyScroller(mVerticalBar);
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if (mHorizontalBar)
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DrawEmptyScroller(mHorizontalBar);
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}
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// if (mVerticalBar && mHorizontalBar)
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if ((mHandleGrowIconManually && (mVerticalBar || mHorizontalBar)) || (mVerticalBar && mHorizontalBar))
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DrawDummySizeBox();
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}
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// Adjust the position of the scrollbars by 1 pixel, so that they fix well.
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// This cannot be done inside the constructor, because -1 offset means that there are no scrollers
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void CHyperScroller::FinishCreateSelf()
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{
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Inherited::FinishCreateSelf();
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// FIX ME!!! put back in
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// if (((CHTMLView*)mScrollingView)->GetScrollable() != LO_SCROLL_YES)
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// ShowScrollbars( FALSE, FALSE );
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// Initially there is no content, so we don't need scroll bars
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ShowScrollbars(false, false);
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}
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// 97-05-06 pkc -- override ActivateSelf so that we call draw dummy size box in active state.
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void CHyperScroller::ActivateSelf()
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{
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Inherited::ActivateSelf();
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// 97-06-06 pkc -- also check to see if we're visible
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// if ((mVisible == triState_On) && mVerticalBar && mHorizontalBar)
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if ((mVisible == triState_On) && ((mHandleGrowIconManually && (mVerticalBar || mHorizontalBar)) || (mVerticalBar && mHorizontalBar)))
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DrawDummySizeBox();
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}
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// 97-05-12 pkc -- override ClickSelf so that we can handle grow icon manually
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void CHyperScroller::ClickSelf(const SMouseDownEvent &inMouseDown)
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{
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if(mHandleGrowIconManually)
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{
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Rect theDummyFrame = CalcDummySizeBox();
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if (::PtInRect(inMouseDown.whereLocal, &theDummyFrame))
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{
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// Find our LWindow superview and call ClickInGrow
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LView* superView = this;
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LWindow* window;
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do {
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superView = superView->GetSuperView();
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window = dynamic_cast<LWindow*>(superView);
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} while (!window && superView);
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if (window)
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window->ClickInGrow(inMouseDown.macEvent);
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}
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}
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else
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LView::ClickSelf(inMouseDown);
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}
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