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Diffstat (limited to 'khtml/rendering/render_image.cpp')
| -rw-r--r-- | khtml/rendering/render_image.cpp | 604 |
1 files changed, 0 insertions, 604 deletions
diff --git a/khtml/rendering/render_image.cpp b/khtml/rendering/render_image.cpp deleted file mode 100644 index f931e9ca5..000000000 --- a/khtml/rendering/render_image.cpp +++ /dev/null @@ -1,604 +0,0 @@ -/** - * This file is part of the DOM implementation for KDE. - * - * Copyright (C) 1999-2003 Lars Knoll (knoll@kde.org) - * (C) 1999 Antti Koivisto (koivisto@kde.org) - * (C) 2000-2003 Dirk Mueller (mueller@kde.org) - * (C) 2003 Apple Computer, Inc. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public License - * along with this library; see the file COPYING.LIB. If not, write to - * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, - * Boston, MA 02110-1301, USA. - * - */ -//#define DEBUG_LAYOUT - -#include "render_image.h" -#include "render_canvas.h" - -#include <tqdrawutil.h> -#include <tqpainter.h> - -#include <kapplication.h> -#include <kdebug.h> -#include <kglobalsettings.h> - -#include "css/csshelper.h" -#include "misc/helper.h" -#include "misc/htmlattrs.h" -#include "misc/loader.h" -#include "misc/htmltags.h" -#include "html/html_formimpl.h" -#include "html/html_imageimpl.h" -#include "html/dtd.h" -#include "xml/dom2_eventsimpl.h" -#include "html/html_documentimpl.h" -#include "html/html_objectimpl.h" -#include "khtmlview.h" -#include "khtml_part.h" -#include <math.h> - -#include "loading_icon.cpp" - -using namespace DOM; -using namespace khtml; - -// ------------------------------------------------------------------------- - -RenderImage::RenderImage(NodeImpl *_element) - : RenderReplaced(_element) -{ - m_oldImage = m_cachedImage = 0; - - m_selectionState = SelectionNone; - berrorPic = false; - - const KHTMLSettings *settings = _element->getDocument()->view()->part()->settings(); - bUnfinishedImageFrame = settings->unfinishedImageFrame(); - - setIntrinsicWidth( 0 ); - setIntrinsicHeight( 0 ); -} - -RenderImage::~RenderImage() -{ - if(m_cachedImage) m_cachedImage->deref( this ); - if(m_oldImage) m_oldImage->deref( this ); -} - -TQPixmap RenderImage::pixmap() const -{ - return m_cachedImage ? m_cachedImage->pixmap() : TQPixmap(); -} - -void RenderImage::setStyle(RenderStyle* _style) -{ - RenderReplaced::setStyle(_style); - // init RenderObject attributes - //setOverhangingContents(style()->height().isPercent()); - setShouldPaintBackgroundOrBorder(true); -} - -void RenderImage::setContentObject(CachedObject* co ) -{ - if (co && m_cachedImage != co) - updateImage( static_cast<CachedImage*>( co ) ); -} - -void RenderImage::setPixmap( const TQPixmap &p, const TQRect& r, CachedImage *o) -{ - if ( o == m_oldImage ) - return; - - if(o != m_cachedImage) { - RenderReplaced::setPixmap(p, r, o); - return; - } - - bool iwchanged = false; - - if(o->isErrorImage()) { - int iw = p.width() + 8; - int ih = p.height() + 8; - - // we have an alt and the user meant it (its not a text we invented) - if ( element() && !alt.isEmpty() && !element()->getAttribute( ATTR_ALT ).isNull()) { - const TQFontMetrics &fm = style()->fontMetrics(); - TQRect br = fm.boundingRect ( 0, 0, 1024, 256, TQt::AlignAuto|TQt::WordBreak, alt.string() ); - if ( br.width() > iw ) - iw = br.width(); - if ( br.height() > ih ) - ih = br.height(); - } - - if ( iw != intrinsicWidth() ) { - setIntrinsicWidth( iw ); - iwchanged = true; - } - if ( ih != intrinsicHeight() ) { - setIntrinsicHeight( ih ); - iwchanged = true; - } - if ( element() && element()->id() == ID_OBJECT ) { - static_cast<HTMLObjectElementImpl*>( element() )->renderAlternative(); - return; - } - } - berrorPic = o->isErrorImage(); - - bool needlayout = false; - - // Image dimensions have been changed, see what needs to be done - if( o->pixmap_size().width() != intrinsicWidth() || - o->pixmap_size().height() != intrinsicHeight() || iwchanged ) - { -// tqDebug("image dimensions have been changed, old: %d/%d new: %d/%d", -// intrinsicWidth(), intrinsicHeight(), -// o->pixmap_size().width(), o->pixmap_size().height()); - - if(!o->isErrorImage()) { - setIntrinsicWidth( o->pixmap_size().width() ); - setIntrinsicHeight( o->pixmap_size().height() ); - } - - // lets see if we need to relayout at all.. - int oldwidth = m_width; - int oldheight = m_height; - int oldminwidth = m_minWidth; - m_minWidth = 0; - - if ( parent() ) { - calcWidth(); - calcHeight(); - } - - if(iwchanged || m_width != oldwidth || m_height != oldheight) - needlayout = true; - - m_minWidth = oldminwidth; - m_width = oldwidth; - m_height = oldheight; - } - - // we're not fully integrated in the tree yet.. we'll come back. - if ( !parent() ) - return; - - if(needlayout) - { - if (!selfNeedsLayout()) - setNeedsLayout(true); - if (minMaxKnown()) - setMinMaxKnown(false); - } - else - { - bool completeRepaint = !resizeCache.isNull(); - int cHeight = contentHeight(); - int scaledHeight = intrinsicHeight() ? ((o->valid_rect().height()*cHeight)/intrinsicHeight()) : 0; - - // don't bog down X server doing xforms - if(completeRepaint && cHeight >= 5 && o->valid_rect().height() < intrinsicHeight() && - (scaledHeight / (cHeight/5) == resizeCache.height() / (cHeight/5))) - return; - - resizeCache = TQPixmap(); // for resized animations - - if(completeRepaint) - repaintRectangle(borderLeft()+paddingLeft(), borderTop()+paddingTop(), contentWidth(), contentHeight()); - else - { - repaintRectangle(r.x() + borderLeft() + paddingLeft(), r.y() + borderTop() + paddingTop(), - r.width(), r.height()); - } - } -} - -void RenderImage::paint(PaintInfo& paintInfo, int _tx, int _ty) -{ - if (paintInfo.phase == PaintActionOutline && style()->outlineWidth() && style()->visibility() == VISIBLE) - paintOutline(paintInfo.p, _tx + m_x, _ty + m_y, width(), height(), style()); - - if (paintInfo.phase != PaintActionForeground && paintInfo.phase != PaintActionSelection) - return; - - // not visible or not even once layouted? - if (style()->visibility() != VISIBLE || m_y <= -500000) return; - - _tx += m_x; - _ty += m_y; - - if((_ty > paintInfo.r.bottom()) || (_ty + m_height <= paintInfo.r.top())) return; - - if(shouldPaintBackgroundOrBorder()) - paintBoxDecorations(paintInfo, _tx, _ty); - - int cWidth = contentWidth(); - int cHeight = contentHeight(); - int leftBorder = borderLeft(); - int topBorder = borderTop(); - int leftPad = paddingLeft(); - int topPad = paddingTop(); - - if (!canvas()->printImages()) - return; - - CachedImage* i = m_oldImage && m_oldImage->valid_rect().size() == m_oldImage->pixmap_size() && - m_oldImage->pixmap_size().width() == intrinsicWidth() && - m_oldImage->pixmap_size().height() == intrinsicHeight() - ? m_oldImage : m_cachedImage; - - // paint frame around image as long as it is not completely loaded from web. - if (bUnfinishedImageFrame && paintInfo.phase == PaintActionForeground && cWidth > 2 && cHeight > 2 && !complete()) { - static TQPixmap *loadingIcon; - TQColor bg = khtml::retrieveBackgroundColor(this); - TQColor fg = khtml::hasSufficientContrast(Qt::gray, bg) ? Qt::gray : - (hasSufficientContrast(Qt::white, bg) ? Qt::white : Qt::black); - paintInfo.p->setPen(TQPen(fg, 1)); - paintInfo.p->setBrush( Qt::NoBrush ); - paintInfo.p->drawRect(_tx, _ty, m_width, m_height); - if (!(m_width <= 5 || m_height <= 5)) { - if (!loadingIcon) { - loadingIcon = new TQPixmap(); - loadingIcon->loadFromData(loading_icon_data, loading_icon_len); - } - paintInfo.p->drawPixmap(_tx + 4, _ty + 4, *loadingIcon, 0, 0, m_width - 5, m_height - 5); - } - - } - - //kdDebug( 6040 ) << " contents (" << contentWidth << "/" << contentHeight << ") border=" << borderLeft() << " padding=" << paddingLeft() << endl; - if ( !i || berrorPic) - { - if(cWidth > 2 && cHeight > 2) - { - if ( !berrorPic ) { - //tqDebug("qDrawShadePanel %d/%d/%d/%d", _tx + leftBorder, _ty + topBorder, cWidth, cHeight); - qDrawShadePanel( paintInfo.p, _tx + leftBorder + leftPad, _ty + topBorder + topPad, cWidth, cHeight, - TDEApplication::palette().inactive(), true, 1 ); - } - TQPixmap const* pix = i ? &i->pixmap() : 0; - if(berrorPic && pix && (cWidth >= pix->width()+4) && (cHeight >= pix->height()+4) ) - { - TQRect r(pix->rect()); - r = r.intersect(TQRect(0, 0, cWidth-4, cHeight-4)); - paintInfo.p->drawPixmap( TQPoint( _tx + leftBorder + leftPad+2, _ty + topBorder + topPad+2), *pix, r ); - } - if(!alt.isEmpty()) { - TQString text = alt.string(); - paintInfo.p->setFont(style()->font()); - paintInfo.p->setPen( style()->color() ); - int ax = _tx + leftBorder + leftPad + 2; - int ay = _ty + topBorder + topPad + 2; - const TQFontMetrics &fm = style()->fontMetrics(); - if (cWidth>5 && cHeight>=fm.height()) - paintInfo.p->drawText(ax, ay+1, cWidth - 4, cHeight - 4, TQt::WordBreak, text ); - } - } - } - else if (i && !i->isTransparent()) - { - paintInfo.p->setPen( Qt::black ); // used for bitmaps - const TQPixmap& pix = i->pixmap(); - if ( (cWidth != intrinsicWidth() || cHeight != intrinsicHeight()) && - pix.width() > 0 && pix.height() > 0 && i->valid_rect().isValid()) - { - if (resizeCache.isNull() && cWidth && cHeight && intrinsicWidth() && intrinsicHeight()) - { - TQRect scaledrect(i->valid_rect()); -// kdDebug(6040) << "time elapsed: " << dt->elapsed() << endl; -// kdDebug( 6040 ) << "have to scale: " << endl; -// tqDebug("cw=%d ch=%d pw=%d ph=%d rcw=%d, rch=%d", -// cWidth, cHeight, intrinsicWidth(), intrinsicHeight(), resizeCache.width(), resizeCache.height()); - TQWMatrix matrix; - matrix.scale( (float)(cWidth)/intrinsicWidth(), - (float)(cHeight)/intrinsicHeight() ); - resizeCache = pix.xForm( matrix ); - scaledrect.setWidth( ( cWidth*scaledrect.width() ) / intrinsicWidth() ); - scaledrect.setHeight( ( cHeight*scaledrect.height() ) / intrinsicHeight() ); -// tqDebug("resizeCache size: %d/%d", resizeCache.width(), resizeCache.height()); -// tqDebug("valid: %d/%d, scaled: %d/%d", -// i->valid_rect().width(), i->valid_rect().height(), -// scaledrect.width(), scaledrect.height()); - - // sometimes scaledrect.width/height are off by one because - // of rounding errors. if the i is fully loaded, we - // make sure that we don't do unnecessary resizes during painting - TQSize s(scaledrect.size()); - if(i->valid_rect().size() == TQSize( intrinsicWidth(), intrinsicHeight() )) // fully loaded - s = TQSize(cWidth, cHeight); - if(kAbs(s.width() - cWidth) < 2) // rounding errors - s.setWidth(cWidth); - if(resizeCache.size() != s) - resizeCache.resize(s); - - paintInfo.p->drawPixmap( TQPoint( _tx + leftBorder + leftPad, _ty + topBorder + topPad), - resizeCache, scaledrect ); - } - else - paintInfo.p->drawPixmap( TQPoint( _tx + leftBorder + leftPad, _ty + topBorder + topPad), resizeCache ); - } - else - { - // we might be just about switching images - TQRect rect(i->valid_rect().isValid() ? i->valid_rect() - : TQRect(0, 0, intrinsicWidth(), intrinsicHeight())); - - TQPoint offs( _tx + leftBorder + leftPad, _ty + topBorder + topPad); -// tqDebug("normal paint rect %d/%d/%d/%d", rect.x(), rect.y(), rect.width(), rect.height()); -// rect = rect & TQRect( 0 , y - offs.y() - 10, w, 10 + y + h - offs.y()); - -// tqDebug("normal paint rect after %d/%d/%d/%d", rect.x(), rect.y(), rect.width(), rect.height()); -// tqDebug("normal paint: offs.y(): %d, y: %d, diff: %d", offs.y(), y, y - offs.y()); -// tqDebug(""); - -// p->setClipRect(TQRect(x,y,w,h)); - - -// p->drawPixmap( offs.x(), y, pix, rect.x(), rect.y(), rect.width(), rect.height() ); - paintInfo.p->drawPixmap(offs, pix, rect); - - } - } - if (m_selectionState != SelectionNone) { -// kdDebug(6040) << "_tx " << _tx << " _ty " << _ty << " _x " << _x << " _y " << _y << endl; - // Draw in any case if inside selection. For selection borders, the - // offset will decide whether to draw selection or not - bool draw = true; - if (m_selectionState != SelectionInside) { - int startPos, endPos; - selectionStartEnd(startPos, endPos); - if(selectionState() == SelectionStart) - endPos = 1; - else if(selectionState() == SelectionEnd) - startPos = 0; - draw = endPos - startPos > 0; - } - if (draw) { - // setting the brush origin is important for compatibility, - // don't touch it unless you know what you're doing - paintInfo.p->setBrushOrigin(_tx, _ty - paintInfo.r.y()); - paintInfo.p->fillRect(_tx, _ty, width(), height(), - TQBrush(style()->palette().active().highlight(), - Qt::Dense4Pattern)); - } - } -} - -void RenderImage::layout() -{ - KHTMLAssert( needsLayout()); - KHTMLAssert( minMaxKnown() ); - - short oldwidth = m_width; - int oldheight = m_height; - - // minimum height - m_height = m_cachedImage && m_cachedImage->isErrorImage() ? intrinsicHeight() : 0; - - calcWidth(); - calcHeight(); - - // if they are variable width and we calculate a huge height or width, we assume they - // actually wanted the intrinsic width. - if ( m_width > 4096 && !style()->width().isFixed() ) - m_width = intrinsicWidth() + paddingLeft() + paddingRight() + borderLeft() + borderRight(); - if ( m_height > 2048 && !style()->height().isFixed() ) - m_height = intrinsicHeight() + paddingTop() + paddingBottom() + borderTop() + borderBottom(); - - // limit total size to not run out of memory when doing the xform call. - if ( ( m_width * m_height > 4096*2048 ) && - ( contentWidth() > intrinsicWidth() || contentHeight() > intrinsicHeight() ) ) { - float scale = sqrt( m_width*m_height / ( 4096.*2048. ) ); - m_width = (int) (m_width/scale); - m_height = (int) (m_height/scale); - } - - if ( m_width != oldwidth || m_height != oldheight ) - resizeCache = TQPixmap(); - - setNeedsLayout(false); -} - -void RenderImage::notifyFinished(CachedObject *finishedObj) -{ - if ( ( m_cachedImage == finishedObj || m_oldImage == finishedObj ) && m_oldImage ) { - m_oldImage->deref( this ); - m_oldImage = 0; - repaint(); - } - - RenderReplaced::notifyFinished(finishedObj); -} - -bool RenderImage::nodeAtPoint(NodeInfo& info, int _x, int _y, int _tx, int _ty, HitTestAction hitTestAction, bool inside) -{ - inside |= RenderReplaced::nodeAtPoint(info, _x, _y, _tx, _ty, hitTestAction, inside); - - if (inside && element()) { - int tx = _tx + m_x; - int ty = _ty + m_y; - if (isRelPositioned()) - relativePositionOffset(tx, ty); - - HTMLImageElementImpl* i = element()->id() == ID_IMG ? static_cast<HTMLImageElementImpl*>(element()) : 0; - HTMLMapElementImpl* map; - if (i && i->getDocument()->isHTMLDocument() && - (map = static_cast<HTMLDocumentImpl*>(i->getDocument())->getMap(i->imageMap()))) { - // we're a client side image map - inside = map->mapMouseEvent(_x - tx, _y - ty, contentWidth(), contentHeight(), info); - info.setInnerNonSharedNode(element()); - } - } - - return inside; -} - -void RenderImage::updateImage(CachedImage* new_image) -{ - CachedImage* tempimage = m_oldImage; - m_oldImage = m_cachedImage; - m_cachedImage = new_image; - assert( m_cachedImage != m_oldImage ); - - if ( m_cachedImage ) - m_cachedImage->ref(this); - - if ( tempimage ) - tempimage->deref(this); - - // if the loading finishes we might get an error and then the image is deleted - if ( m_cachedImage ) - berrorPic = m_cachedImage->isErrorImage(); - else - berrorPic = true; -} - -void RenderImage::updateFromElement() -{ - if (element()->id() == ID_INPUT) - alt = static_cast<HTMLInputElementImpl*>(element())->altText(); - else if (element()->id() == ID_IMG) - alt = static_cast<HTMLImageElementImpl*>(element())->altText(); - - DOMString u = element()->id() == ID_OBJECT ? - element()->getAttribute(ATTR_DATA) : element()->getAttribute(ATTR_SRC); - - if (!u.isEmpty() && - ( !m_cachedImage || m_cachedImage->url() != u ) ) { - CachedImage *new_image = element()->getDocument()->docLoader()-> - requestImage(khtml::parseURL(u)); - - if(new_image && new_image != m_cachedImage) - updateImage( new_image ); - } -} - -bool RenderImage::complete() const -{ - // "complete" means that the image has been loaded - // but also that its width/height (contentWidth(),contentHeight()) have been calculated. - return m_cachedImage && m_cachedImage->valid_rect().size() == m_cachedImage->pixmap_size() && !needsLayout(); -} - -bool RenderImage::isWidthSpecified() const -{ - switch (style()->width().type()) { - case Fixed: - case Percent: - return true; - default: - return false; - } - assert(false); - return false; -} - -bool RenderImage::isHeightSpecified() const -{ - switch (style()->height().type()) { - case Fixed: - case Percent: - return true; - default: - return false; - } - assert(false); - return false; -} - -short RenderImage::calcAspectRatioWidth() const -{ - if (intrinsicHeight() == 0) - return 0; - if (!m_cachedImage || m_cachedImage->isErrorImage()) - return intrinsicWidth(); // Don't bother scaling. - return RenderReplaced::calcReplacedHeight() * intrinsicWidth() / intrinsicHeight(); -} - -int RenderImage::calcAspectRatioHeight() const -{ - if (intrinsicWidth() == 0) - return 0; - if (!m_cachedImage || m_cachedImage->isErrorImage()) - return intrinsicHeight(); // Don't bother scaling. - return RenderReplaced::calcReplacedWidth() * intrinsicHeight() / intrinsicWidth(); -} - -short RenderImage::calcReplacedWidth() const -{ - int width; - if (isWidthSpecified()) - width = calcReplacedWidthUsing(Width); - else - width = calcAspectRatioWidth(); - int minW = calcReplacedWidthUsing(MinWidth); - int maxW = style()->maxWidth().value() == UNDEFINED ? width : calcReplacedWidthUsing(MaxWidth); - - if (width > maxW) - width = maxW; - - if (width < minW) - width = minW; - - return width; -} - -int RenderImage::calcReplacedHeight() const -{ - int height; - if (isHeightSpecified()) - height = calcReplacedHeightUsing(Height); - else - height = calcAspectRatioHeight(); - - int minH = calcReplacedHeightUsing(MinHeight); - int maxH = style()->maxHeight().value() == UNDEFINED ? height : calcReplacedHeightUsing(MaxHeight); - - if (height > maxH) - height = maxH; - - if (height < minH) - height = minH; - - return height; -} - -#if 0 -void RenderImage::caretPos(int offset, int flags, int &_x, int &_y, int &width, int &height) -{ - RenderReplaced::caretPos(offset, flags, _x, _y, width, height); - -#if 0 // doesn't work reliably - height = intrinsicHeight(); - width = override && offset == 0 ? intrinsicWidth() : 0; - _x = xPos(); - _y = yPos(); - if (offset > 0) _x += intrinsicWidth(); - - RenderObject *cb = containingBlock(); - - int absx, absy; - if (cb && cb != this && cb->absolutePosition(absx,absy)) - { - _x += absx; - _y += absy; - } else { - // we don't know our absolute position, and there is no point returning - // just a relative one - _x = _y = -1; - } -#endif -} -#endif |