void WebViewHost::paintInvalidatedRegion()
{
#if ENABLE(REQUEST_ANIMATION_FRAME)
webWidget()->animate(0.0);
#endif
webWidget()->layout();
WebSize widgetSize = webWidget()->size();
WebRect clientRect(0, 0, widgetSize.width, widgetSize.height);
// Paint the canvas if necessary. Allow painting to generate extra rects
// for the first two calls. This is necessary because some WebCore rendering
// objects update their layout only when painted.
// Store the total area painted in total_paint. Then tell the gdk window
// to update that area after we're done painting it.
for (int i = 0; i < 3; ++i) {
// rect = intersect(proxy()->paintRect() , clientRect)
WebRect damageRect = proxy()->paintRect();
int left = max(damageRect.x, clientRect.x);
int top = max(damageRect.y, clientRect.y);
int right = min(damageRect.x + damageRect.width, clientRect.x + clientRect.width);
int bottom = min(damageRect.y + damageRect.height, clientRect.y + clientRect.height);
WebRect rect;
if (left < right && top < bottom)
rect = WebRect(left, top, right - left, bottom - top);
proxy()->setPaintRect(WebRect());
if (rect.isEmpty())
continue;
paintRect(rect);
}
ASSERT(proxy()->paintRect().isEmpty());
}
void DisplayElement::GetBounds (WebRect *rect)
{
if (mFlags & DISPLAY_FLAG_BOUNDS_VALID)
{
*rect = mBounds;
return;
}
*rect = mRect;
WebRect childRect;
DisplayElement *pChild = mpFirstChild;
while (pChild)
{
if (!(pChild->mFlags & DISPLAY_FLAG_FIXED_POS))
{
pChild->GetBounds(&childRect);
childRect.Shift(mRect.left, mRect.top);
rect->Or(&childRect);
}
pChild = pChild->mpNext;
}
SetFlag(DISPLAY_FLAG_BOUNDS_VALID);
mBounds = *rect;
}
/*---------------------------------------------------------------------------*/
void HTMLBodyDisplay::Draw (DISPLAY_INT x, DISPLAY_INT y, WebRect *pViewport, WebGraphics *pGC)
{
FormatIfNecessary();
#if (WEBC_SUPPORT_FRAMES)
if (mpFrameSet)
{
mpFrameSet->Draw(x, y, pViewport, pGC);
}
else
#endif // WEBC_SUPPORT_FRAMES
{
if (!(mpHtmlElement->mFlags & HBODY_FLAG_NOBACKGROUND))
{
WebRect screenRect;
screenRect.Set(x, y, pViewport->right, pViewport->bottom);
DrawBackground(&screenRect, pViewport, pGC);
}
// Draw all children
DisplayElement *pChild = mpFirstChild;
while (pChild)
{
if (pChild->mFlags & DISPLAY_FLAG_FIXED_POS)
{
pChild->Draw(pViewport->left + pChild->mRect.left, pViewport->top + pChild->mRect.top, pViewport, pGC);
}
else
{
pChild->Draw(x + pChild->mRect.left, y + pChild->mRect.top, pViewport, pGC);
}
pChild = pChild->mpNext;
}
}
}
int HTMLString::GetDocumentDisplayRect (WebRect *rect, int n)
{
WebRect displayRect;
HTMLStringDisplay *display = mpFirstDisplay;
while (display && n > 0)
{
if (display->GetStringIndex() + display->GetStringLength() >= miLength)
{
display = 0;
break;
}
n--;
display = display->GetNextSubString();
}
if (display)
{
displayRect.Set(&display->mRect);
if (display->mpParent)
{
DISPLAY_INT x, y;
display->mpParent->GetDisplayPosition(display, &x, &y);
displayRect.MoveTo(x,y);
}
rect->Set(&displayRect);
return (0);
}
return (-1);
}
void DisplayManager::CorrectViewportPosition (void)
{
if (mRoot.Get())
{
WebRect bounds;
PresetWebRect rect(&mViewRect);
GetRootBounds(&bounds);
rect.MoveTo(0,0);
bounds.Or(&rect);
if (mViewRect.left < bounds.left)
{
mViewRect.Shift(bounds.left - mViewRect.left, 0);
}
if (mViewRect.right > bounds.right)
{
mViewRect.Shift(bounds.right - mViewRect.right, 0);
}
if (mViewRect.top < bounds.top)
{
mViewRect.Shift(0, bounds.top - mViewRect.top);
}
if (mViewRect.bottom > bounds.bottom)
{
mViewRect.Shift(0, bounds.bottom - mViewRect.bottom);
}
if (mpVScroll)
{
// Range and Window must be set BEFORE Position,
// so position is not unjustly clipped!
mpVScroll->SetRange(bounds.Height());
mpVScroll->SetWindow(mViewRect.Height());
mpVScroll->SetPosition(mViewRect.top);
}
if (mpHScroll)
{
// Range and Window must be set BEFORE Position,
// so position is not unjustly clipped!
mpHScroll->SetRange(bounds.Width());
mpHScroll->SetWindow(mViewRect.Width());
mpHScroll->SetPosition(mViewRect.left);
}
}
}
void WebListBox::ResizeScrollBars(void)
{
if (mpHScroll)
{
WebRect r;
r.Set(GetMargin() + GetBorder(),
Height() - GetMargin() - GetBorder() - miSliderWidth - 1,
Width() - (mpVScroll ? miSliderWidth : 0) - GetMargin() - GetBorder() - 1,
Height() - GetMargin() - GetBorder() - 1);
mpHScroll->Move(&r);
WebRect vr;
GetOptionsRect(&vr);
mpHScroll->SetWindow(vr.Width());
mpHScroll->Invalidate();
}
if (mpVScroll)
{
WebRect r;
r.Set(Width() - 1 - GetMargin() - GetBorder() - miSliderWidth,
GetMargin() + GetBorder(),
Width() - 1 - GetMargin() - GetBorder(),
Height() - 1 - (mpHScroll ? miSliderWidth : 0) - GetMargin() - GetBorder());
mpVScroll->Move(&r);
WebRect vr;
GetOptionsRect(&vr);
mpVScroll->SetWindow(vr.Height());
mpVScroll->Invalidate();
}
}
void WebPopupMenuImpl::paint(WebCanvas* canvas, const WebRect& rect)
{
if (!m_widget)
return;
if (!rect.isEmpty())
m_widget->paint(&GraphicsContextBuilder(canvas).context(), rect);
}
void WebPopupMenuImpl::paintContents(WebCanvas* canvas, const WebRect& rect, bool, WebFloatRect&)
{
if (!m_widget)
return;
if (!rect.isEmpty()) {
GraphicsContext context(canvas);
m_widget->paint(&context, rect);
}
}
void DisplayManager::UpdateViewport (void)
{
WebRect view;
WebRect padding;
WebRect vscrollRect;
WebRect hscrollRect;
GetPaddingWidth(&padding);
view.Set (mRect.left + padding.left,
mRect.top + padding.top,
mRect.right - padding.right,
mRect.bottom - padding.bottom);
if (mpVScroll)
{
vscrollRect.Set (mRect.Width() - padding.right - webc_GetDefaultDisplayInt(WEBC_DEFAULT_SLIDER_WIDTH), padding.top,
mRect.Width() - 1 - padding.right, mRect.Height() - 1 - padding.bottom);
view.right -= webc_GetDefaultDisplayInt(WEBC_DEFAULT_SLIDER_WIDTH);
if (mpHScroll)
{
hscrollRect.Set (padding.left, mRect.Height() - padding.bottom - webc_GetDefaultDisplayInt(WEBC_DEFAULT_SLIDER_WIDTH),
mRect.Width() - padding.right - webc_GetDefaultDisplayInt(WEBC_DEFAULT_SLIDER_WIDTH),
mRect.Height() - 1 - padding.bottom);
vscrollRect.bottom -= webc_GetDefaultDisplayInt(WEBC_DEFAULT_SLIDER_WIDTH) - 1;
view.bottom -= webc_GetDefaultDisplayInt(WEBC_DEFAULT_SLIDER_WIDTH);
mpHScroll->Move(&hscrollRect);
}
mpVScroll->Move(&vscrollRect);
}
else
{
if (mpHScroll)
{
hscrollRect.Set (padding.left, mRect.Height() - padding.bottom - webc_GetDefaultDisplayInt(WEBC_DEFAULT_SLIDER_WIDTH),
mRect.Width() - 1 - padding.right,
mRect.Height() - 1 - padding.bottom);
view.bottom -= webc_GetDefaultDisplayInt(WEBC_DEFAULT_SLIDER_WIDTH);
mpHScroll->Move(&hscrollRect);
}
}
view.MoveTo(mViewRect.left, mViewRect.top);
SetViewport(&view);
}
FormatResult HTMLBodyDisplay::FormatForViewport (
WebRect* viewportRect,
WEBC_BOOL hscrollPresent,
WEBC_BOOL vscrollPresent
)
{
if (Width() != viewportRect->Width())
{
SizeTo(viewportRect->Width(), viewportRect->Height());
SetParentStyleModified();
}
else if (Height() != viewportRect->Height())
{
SizeTo(viewportRect->Width(), viewportRect->Height());
SetPosChildStyleModified();
}
FormatIfNecessary();
CSSPropertyValue overflowValue;
if (mpHtmlElement->GetStyleFromCSS(CSS_PROPERTY_OVERFLOW, &overflowValue) == CSS_VALUE_SPECIFIED)
{
if (CSS_OVERFLOW_HIDDEN == overflowValue.overflow)
{
return (DISPLAY_FORMAT_SUCCESS);
}
}
#if (WEBC_SUPPORT_SCROLLBARS)
WebRect bounds;
GetBounds(&bounds);
if (bounds.Height() > viewportRect->Height() && !vscrollPresent)
{
return (DISPLAY_FORMAT_NEEDS_VSCROLL);
}
if (bounds.Width() > viewportRect->Width() && !hscrollPresent)
{
return (DISPLAY_FORMAT_NEEDS_HSCROLL);
}
#endif
return (DISPLAY_FORMAT_SUCCESS);
}
void WebPopupMenuImpl::paint(WebCanvas* canvas, const WebRect& rect, PaintOptions)
{
if (!m_widget)
return;
if (!rect.isEmpty()) {
GraphicsContext context(canvas);
context.applyDeviceScaleFactor(m_client->deviceScaleFactor());
m_widget->paint(&context, rect);
}
}
void WebPopupMenuImpl::paintContents(WebCanvas* canvas, const WebRect& rect, bool, WebContentLayerClient::GraphicsContextStatus contextStatus)
{
if (!m_widget)
return;
if (!rect.isEmpty()) {
GraphicsContext context(canvas,
contextStatus == WebContentLayerClient::GraphicsContextEnabled ? GraphicsContext::NothingDisabled : GraphicsContext::FullyDisabled);
m_widget->paint(&context, rect);
}
}
void WebPopupMenuImpl::paint(WebCanvas* canvas, const WebRect& rect)
{
if (!m_widget)
return;
if (!rect.isEmpty()) {
OwnPtr<GraphicsContext> context = GraphicsContext::deprecatedCreateWithCanvas(canvas);
float scaleFactor = m_client->deviceScaleFactor();
context->scale(scaleFactor, scaleFactor);
m_widget->paint(context.get(), rect);
}
}
void WebListBox::FitSelection(void)
{
if (UseVScroll())
{
DISPLAY_INT offsetX, offsetY;
WebRect r;
GetScrollOffset(&offsetX, &offsetY);
GetOptionsRect(&r);
int pos = miSelected * (miTextHeight + GetSpacing());
if (pos < offsetY)
{
mpVScroll->SetPosition(pos);
}
else if (pos > offsetY + r.Height() - miTextHeight - GetSpacing())
{
mpVScroll->SetPosition(pos - r.Height() + miTextHeight + GetSpacing());
}
}
}
void WebViewHost::updatePaintRect(const WebRect& rect)
{
// m_paintRect = m_paintRect U rect
if (rect.isEmpty())
return;
if (m_paintRect.isEmpty()) {
m_paintRect = rect;
return;
}
int left = min(m_paintRect.x, rect.x);
int top = min(m_paintRect.y, rect.y);
int right = max(m_paintRect.x + m_paintRect.width, rect.x + rect.width);
int bottom = max(m_paintRect.y + m_paintRect.height, rect.y + rect.height);
m_paintRect = WebRect(left, top, right - left, bottom - top);
}
void PageWidgetDelegate::paint(Page* page, PageOverlayList* overlays, WebCanvas* canvas, const WebRect& rect, CanvasBackground background)
{
if (rect.isEmpty())
return;
GraphicsContextBuilder builder(canvas);
GraphicsContext& gc = builder.context();
gc.platformContext()->setDrawingToImageBuffer(background == Opaque ? false : true);
gc.applyDeviceScaleFactor(page->deviceScaleFactor());
IntRect dirtyRect(rect);
gc.save();
FrameView* view = mainFrameView(page);
// FIXME: Can we remove the mainFrame()->document() check?
if (view && page->mainFrame()->document()) {
gc.clip(dirtyRect);
view->paint(&gc, dirtyRect);
if (overlays)
overlays->paintWebFrame(gc);
} else
gc.fillRect(dirtyRect, Color::white, ColorSpaceDeviceRGB);
gc.restore();
}
void PageWidgetDelegate::paint(Page* page, PageOverlayList* overlays, WebCanvas* canvas, const WebRect& rect, CanvasBackground background)
{
if (rect.isEmpty())
return;
GraphicsContext gc(canvas);
gc.setCertainlyOpaque(background == Opaque);
gc.applyDeviceScaleFactor(page->deviceScaleFactor());
gc.setUseHighResMarkers(page->deviceScaleFactor() > 1.5f);
IntRect dirtyRect(rect);
gc.save(); // Needed to save the canvas, not the GraphicsContext.
FrameView* view = mainFrameView(page);
// FIXME: Can we remove the mainFrame()->document() check?
if (view && page->mainFrame()->document()) {
gc.clip(dirtyRect);
view->paint(&gc, dirtyRect);
if (overlays)
overlays->paintWebFrame(gc);
} else {
gc.fillRect(dirtyRect, Color::white);
}
gc.restore();
}
void PageWidgetDelegate::paint(Page& page, PageOverlayList* overlays, WebCanvas* canvas, const WebRect& rect, CanvasBackground background, LocalFrame& root)
{
if (rect.isEmpty())
return;
GraphicsContext gc(canvas, nullptr);
gc.setCertainlyOpaque(background == Opaque);
float scaleFactor = page.deviceScaleFactor();
gc.scale(scaleFactor, scaleFactor);
gc.setDeviceScaleFactor(scaleFactor);
IntRect dirtyRect(rect);
gc.save(); // Needed to save the canvas, not the GraphicsContext.
FrameView* view = root.view();
if (view) {
gc.clip(dirtyRect);
view->paint(&gc, dirtyRect);
if (overlays)
overlays->paintWebFrame(gc);
} else {
gc.fillRect(dirtyRect, Color::white);
}
gc.restore();
}
void DisplayElement::InvalidateChild (DisplayElement *pChild, WebRect *pDirty)
{
WebRect dirty;
dirty.Set(pDirty);
dirty.Shift(mRect.left, mRect.top);
if (GetOverflow() == DISPLAY_OVERFLOW_HIDDEN)
{
WebRect clipRect;
GetClipRect(&clipRect);
// If completely outside clipping rect, stop here
if (!dirty.Overlaps(&clipRect))
{
return;
}
// clip pDirty to our rect
dirty.And(&clipRect);
}
if ((mFlags & DISPLAY_FLAG_FIXED_POS) || !mpParent)
{
DisplayManager *pManager = GetManager();
if (pManager)
{
if (mFlags & DISPLAY_FLAG_FIXED_POS)
{
dirty.Shift(pManager->mViewRect.left, pManager->mViewRect.top);
}
pManager->InvalidateViewportRegion(&dirty);
}
}
else
{
mpParent->InvalidateChild(this, &dirty);
}
}
void TestShell::dump()
{
WebScriptController::flushConsoleMessages();
// Dump the requested representation.
WebFrame* frame = m_webView->mainFrame();
if (!frame)
return;
bool shouldDumpAsText = m_layoutTestController->shouldDumpAsText();
bool shouldDumpAsAudio = m_layoutTestController->shouldDumpAsAudio();
bool shouldGeneratePixelResults = m_layoutTestController->shouldGeneratePixelResults();
bool shouldDumpAsPrinted = m_layoutTestController->isPrinting();
bool dumpedAnything = false;
if (shouldDumpAsAudio) {
m_printer->handleAudioHeader();
const WebKit::WebArrayBufferView& webArrayBufferView = m_layoutTestController->audioData();
printf("Content-Length: %d\n", webArrayBufferView.byteLength());
if (fwrite(webArrayBufferView.baseAddress(), 1, webArrayBufferView.byteLength(), stdout) != webArrayBufferView.byteLength())
FATAL("Short write to stdout, disk full?\n");
printf("\n");
m_printer->handleTestFooter(true);
fflush(stdout);
fflush(stderr);
return;
}
if (m_params.dumpTree) {
dumpedAnything = true;
m_printer->handleTextHeader();
// Text output: the test page can request different types of output
// which we handle here.
if (!shouldDumpAsText) {
// Plain text pages should be dumped as text
string mimeType = frame->dataSource()->response().mimeType().utf8();
if (mimeType == "text/plain") {
shouldDumpAsText = true;
shouldGeneratePixelResults = false;
}
}
if (shouldDumpAsText) {
bool recursive = m_layoutTestController->shouldDumpChildFramesAsText();
string dataUtf8 = shouldDumpAsPrinted ? dumpFramesAsPrintedText(frame, recursive) : dumpFramesAsText(frame, recursive);
if (fwrite(dataUtf8.c_str(), 1, dataUtf8.size(), stdout) != dataUtf8.size())
FATAL("Short write to stdout, disk full?\n");
} else {
WebFrame::RenderAsTextControls renderTextBehavior = WebFrame::RenderAsTextNormal;
if (shouldDumpAsPrinted)
renderTextBehavior |= WebFrame::RenderAsTextPrinting;
if (m_params.debugRenderTree)
renderTextBehavior |= WebFrame::RenderAsTextDebug;
printf("%s", frame->renderTreeAsText(renderTextBehavior).utf8().data());
bool recursive = m_layoutTestController->shouldDumpChildFrameScrollPositions();
dumpFrameScrollPosition(frame, recursive);
}
if (m_layoutTestController->shouldDumpBackForwardList())
printf("%s", dumpAllBackForwardLists().c_str());
}
if (dumpedAnything && m_params.printSeparators)
m_printer->handleTextFooter();
if (m_params.dumpPixels && shouldGeneratePixelResults) {
// Image output: we write the image data to the file given on the
// command line (for the dump pixels argument), and the MD5 sum to
// stdout.
dumpedAnything = true;
m_webView->layout();
if (m_layoutTestController->testRepaint()) {
WebSize viewSize = m_webView->size();
int width = viewSize.width;
int height = viewSize.height;
if (m_layoutTestController->sweepHorizontally()) {
for (WebRect column(0, 0, 1, height); column.x < width; column.x++)
m_webViewHost->paintRect(column);
} else {
for (WebRect line(0, 0, width, 1); line.y < height; line.y++)
m_webViewHost->paintRect(line);
}
} else if (m_layoutTestController->isPrinting())
m_webViewHost->paintPagesWithBoundaries();
else
m_webViewHost->paintInvalidatedRegion();
// See if we need to draw the selection bounds rect. Selection bounds
// rect is the rect enclosing the (possibly transformed) selection.
// The rect should be drawn after everything is laid out and painted.
if (m_layoutTestController->shouldDumpSelectionRect()) {
// If there is a selection rect - draw a red 1px border enclosing rect
WebRect wr = frame->selectionBoundsRect();
if (!wr.isEmpty()) {
// Render a red rectangle bounding selection rect
SkPaint paint;
paint.setColor(0xFFFF0000); // Fully opaque red
paint.setStyle(SkPaint::kStroke_Style);
paint.setFlags(SkPaint::kAntiAlias_Flag);
paint.setStrokeWidth(1.0f);
SkIRect rect; // Bounding rect
rect.set(wr.x, wr.y, wr.x + wr.width, wr.y + wr.height);
m_webViewHost->canvas()->drawIRect(rect, paint);
}
}
dumpImage(m_webViewHost->canvas());
}
m_printer->handleImageFooter();
m_printer->handleTestFooter(dumpedAnything);
fflush(stdout);
fflush(stderr);
}
void WebListBox::SetupScrollBars(WebGraphics * gc)
{
WebRect window;
GetContentRect(&window);
DISPLAY_INT w = window.Width();
DISPLAY_INT h = window.Height();
WEBC_BOOL needH, needV;
needH = needV = WEBC_FALSE;
for (int t = 0; t < 2; t++)
{
if (w < GetTotalTextWidth())
{
needH = WEBC_TRUE;
h -= miSliderWidth;
}
if (h < GetTotalTextHeight())
{
needV = WEBC_TRUE;
w -= miSliderWidth;
}
}
if (needH && !mpHScroll)
{
WEBC_NEW_VERBOSE(mpHScroll, WebHScroll,"wtlist:WebVscroll");
if (mpHScroll)
{
mpHScroll->SetListener(this);
mpHScroll->SetRange(GetTotalTextWidth());
mpHScroll->SetStep(miTextHeight);
mpHScroll->SetPosition(0);
if (mFlags & DISPLAY_FLAG_DISABLED)
{
mpHScroll->Disable();
}
InsertLast(mpHScroll);
ResizeScrollBars();
}
}
else if (!needH && mpHScroll)
{
Remove(mpHScroll);
WEBC_DELETE(mpHScroll);
mpHScroll = WEBC_NULL;
}
if (needV && !mpVScroll)
{
WEBC_NEW_VERBOSE(mpVScroll, WebVScroll,"Wtlist:WebVscroll");
if (mpVScroll)
{
mpVScroll->SetListener(this);
mpVScroll->SetRange(GetTotalTextHeight());
mpVScroll->SetStep(miTextHeight + GetSpacing());
mpVScroll->SetPosition(0);
if (mFlags & DISPLAY_FLAG_DISABLED)
{
mpVScroll->Disable();
}
InsertLast(mpVScroll);
ResizeScrollBars();
}
}
else if (!needV && mpVScroll)
{
Remove(mpVScroll);
WEBC_DELETE(mpVScroll);
mpVScroll = WEBC_NULL;
}
}
/*---------------------------------------------------------------------------*/
template<class T> IPositionedFormatContext* HTMLElementDisplay<T>::FormatSelfPositioned (
DisplayElement* displayParent,
IPositionedFormatContext* rootContext,
IPositionedFormatContext* parentContext,
FormatContextFactory* childContextFactory,
WEBC_BOOL generateChildContext
)
{
WebRect rect;
WEBC_UINT16 position = GetPosition();
IPositionedFormatContext* childContext = 0;
if (position == TU_POSITION_RELATIVE)
{
if (generateChildContext)
{
const WebRect * tmpRect = &(((DisplayElement *)(this))->mRect);
rect.Set(tmpRect);
rect.MoveTo(0,0);
CSSLength height;
GetCSSLength(&height, CSS_PROPERTY_HEIGHT);
childContext = childContextFactory->newPositioned (
&rect,
(height.type == CSS_LENGTH_UNIT_AUTO) ||
(height.type == CSS_LENGTH_UNIT_PERCENT && parentContext->parentHeightIsAuto()), // parent height is auto
TU_DIR_LTR,
0, // border-left-width
0, // border-top-width
0, // border-right-width
0, // border-bottom-width
0, // autoIndentLeft
0, // autoIndentTop
0 // autoIndentRight
);
}
}
else
{
WebRect containingBlock;
IPositionedFormatContext* containingContext;
DISPLAY_INT borderLeftValue;
DISPLAY_INT borderTopValue;
DISPLAY_INT borderRightValue;
DISPLAY_INT borderBottomValue;
if (displayParent)
{
if (displayParent != T::mpParent)
{
mHtmlElementDisplayFlags &= ~HELEM_DISPLAY_FLAG_STYLE_SET;
}
displayParent->InsertOrdered(this);
}
if (position == TU_POSITION_FIXED)
{
T::SetFixedPosition(WEBC_TRUE);
containingContext = rootContext;
}
else
{
T::SetFixedPosition(WEBC_FALSE);
containingContext = parentContext;
}
containingContext->getContainingBlock(&containingBlock);
WEBC_BOOL parentHeightIsAuto = containingContext->parentHeightIsAuto();
int textDirection = containingContext->getTextDirection();
DISPLAY_INT parentBorderLeft = containingContext->getParentBorderLeft();
DISPLAY_INT parentBorderTop = containingContext->getParentBorderTop();
DISPLAY_INT parentBorderRight = containingContext->getParentBorderRight();
DISPLAY_INT parentBorderBottom = containingContext->getParentBorderBottom();
DISPLAY_INT autoIndentLeft = parentContext->getAutoIndentLeft();
DISPLAY_INT autoIndentTop = parentContext->getAutoIndentTop();
DISPLAY_INT autoIndentRight = parentContext->getAutoIndentRight();
if (position == TU_POSITION_FIXED)
{
WebRect parentRect;
parentContext->getContainingBlock(&parentRect);
autoIndentLeft += parentRect.left;
autoIndentTop += parentRect.top;
autoIndentRight += (containingBlock.right - parentRect.right);
}
DISPLAY_INT parentWidth = containingBlock.Width() - (parentBorderLeft + parentBorderRight);
DISPLAY_INT parentHeight = containingBlock.Height() - (parentBorderTop + parentBorderBottom);
WebFont font = mpHtmlElement->GetWebFont();
DISPLAY_INT emHeight = font? WEB_FONT_HEIGHT(font) : WEBC_CFG_DEFAULT_TEXT_HEIGHT;
DISPLAY_INT exHeight = emHeight >> 1;
// First find the left edge and width
CSSLength left;
CSSLength right;
CSSLength width;
// Find value for left, right, width, marginLeft, marginRight
GetCSSLength(&left, CSS_PROPERTY_LEFT);
GetCSSLength(&right, CSS_PROPERTY_RIGHT);
GetCSSLength(&width, CSS_PROPERTY_WIDTH);
DISPLAY_INT leftValue;
DISPLAY_INT rightValue;
DISPLAY_INT widthValue;
DISPLAY_INT marginLeftValue;
DISPLAY_INT paddingLeftValue;
DISPLAY_INT paddingTopValue;
DISPLAY_INT paddingRightValue;
DISPLAY_INT paddingBottomValue;
// Find value for padding and border
paddingLeftValue = GetPixelLength(CSS_PROPERTY_PADDING_LEFT, parentWidth, emHeight, exHeight, 0);
paddingTopValue = GetPixelLength(CSS_PROPERTY_PADDING_TOP, parentWidth, emHeight, exHeight, 0);
paddingRightValue = GetPixelLength(CSS_PROPERTY_PADDING_RIGHT, parentWidth, emHeight, exHeight, 0);
paddingBottomValue = GetPixelLength(CSS_PROPERTY_PADDING_BOTTOM, parentWidth, emHeight, exHeight, 0);
borderLeftValue = GetBorderWidth(CSS_LEFT, parentWidth, emHeight, exHeight, parentBorderLeft);
borderTopValue = GetBorderWidth(CSS_TOP, parentWidth, emHeight, exHeight, parentBorderTop);
borderRightValue = GetBorderWidth(CSS_RIGHT, parentWidth, emHeight, exHeight, parentBorderRight);
borderBottomValue = GetBorderWidth(CSS_BOTTOM, parentWidth, emHeight, exHeight, parentBorderBottom);
CSSLength height;
CSSLength top;
CSSLength bottom;
DISPLAY_INT heightValue=0;
WEBC_BOOL heightIsAuto=0;
GetCSSLength(&height, CSS_PROPERTY_HEIGHT);
GetCSSLength(&top, CSS_PROPERTY_TOP);
#define NOTHING_KNOWN 0
#define HEIGHT_KNOWN 1
#define TOP_KNOWN 2
#define BOTTOM_KNOWN 4
WEBC_UINT8 verticalCase;
verticalCase = (height.type == CSS_LENGTH_UNIT_AUTO ||
(height.type == CSS_LENGTH_UNIT_PERCENT && parentHeightIsAuto))? 0 : HEIGHT_KNOWN;
verticalCase |= (top.type == CSS_LENGTH_UNIT_AUTO)? 0 : TOP_KNOWN;
if (verticalCase != (HEIGHT_KNOWN|TOP_KNOWN))
{
GetCSSLength(&bottom, CSS_PROPERTY_BOTTOM);
verticalCase |= (bottom.type == CSS_LENGTH_UNIT_AUTO || parentHeightIsAuto)? 0 : BOTTOM_KNOWN;
}
DISPLAY_INT topValue = 0;
DISPLAY_INT bottomValue = 0;
DISPLAY_INT marginTopValue = 0;
DISPLAY_INT marginBottomValue = 0;
switch (verticalCase)
{
case NOTHING_KNOWN:
// top = auto indent top
// height = content height
topValue = autoIndentTop;
heightValue = 0;
heightIsAuto = WEBC_TRUE;
marginTopValue = GetPixelLength(CSS_PROPERTY_MARGIN_TOP, parentWidth, emHeight, exHeight, 0);
break;
case HEIGHT_KNOWN:
// top = auto indent top
// height = height
topValue = autoIndentTop;
heightValue = CSS_LengthToPixels(&height, parentHeight, emHeight, exHeight);
heightIsAuto = WEBC_FALSE;
marginTopValue = GetPixelLength(CSS_PROPERTY_MARGIN_TOP, parentWidth, emHeight, exHeight, 0);
break;
case TOP_KNOWN:
// top = top
// height = content height
if (top.type == CSS_LENGTH_UNIT_PERCENT && parentHeightIsAuto)
{
topValue = autoIndentTop;
}
else
{
topValue = CSS_LengthToPixels(&top, parentHeight, emHeight, exHeight);
}
heightValue = 0;
heightIsAuto = WEBC_TRUE;
marginTopValue = GetPixelLength(CSS_PROPERTY_MARGIN_TOP, parentWidth, emHeight, exHeight, 0);
break;
case HEIGHT_KNOWN|TOP_KNOWN:
// top = top
// height = height
if (top.type == CSS_LENGTH_UNIT_PERCENT && parentHeightIsAuto)
{
topValue = autoIndentTop;
}
else
{
topValue = CSS_LengthToPixels(&top, parentHeight, emHeight, exHeight);
}
heightValue = CSS_LengthToPixels(&height, parentHeight, emHeight, exHeight);
heightIsAuto = WEBC_FALSE;
marginTopValue = GetPixelLength(CSS_PROPERTY_MARGIN_TOP, parentWidth, emHeight, exHeight, 0);
break;
case BOTTOM_KNOWN:
// bottom = bottom
// height = content height
// top = parentHeight - (height + bottom)
bottomValue = GetPixelLength(&bottom, parentHeight, emHeight, exHeight, 0);
marginBottomValue = GetPixelLength(CSS_PROPERTY_MARGIN_BOTTOM, parentWidth, emHeight, exHeight, 0);
heightValue = 0;
heightIsAuto = WEBC_TRUE;
break;
case HEIGHT_KNOWN|BOTTOM_KNOWN:
// bottom = bottom
// height = height
// top = parentHeight - (height + bottom)
bottomValue = GetPixelLength(&bottom, parentHeight, emHeight, exHeight, 0);
heightValue = CSS_LengthToPixels(&height, parentHeight, emHeight, exHeight);
heightIsAuto = WEBC_FALSE;
marginBottomValue = GetPixelLength(CSS_PROPERTY_MARGIN_BOTTOM, parentWidth, emHeight, exHeight, 0);
topValue = parentHeight -
(borderTopValue +
paddingTopValue +
heightValue +
paddingBottomValue +
borderBottomValue +
marginBottomValue +
bottomValue);
break;
case TOP_KNOWN|BOTTOM_KNOWN:
// top = top
// bottom = bottom
// height = parentHeight - (top + bottom)
if (top.type == CSS_LENGTH_UNIT_PERCENT && parentHeightIsAuto)
{
topValue = autoIndentTop;
}
else
{
topValue = CSS_LengthToPixels(&top, parentHeight, emHeight, exHeight);
}
bottomValue = GetPixelLength(&bottom, parentHeight, emHeight, exHeight, 0);
marginTopValue = GetPixelLength(CSS_PROPERTY_MARGIN_TOP, parentWidth, emHeight, exHeight, 0);
marginBottomValue = GetPixelLength(CSS_PROPERTY_MARGIN_BOTTOM, parentWidth, emHeight, exHeight, 0);
heightValue = parentHeight -
(topValue +
marginTopValue +
borderTopValue +
paddingTopValue +
paddingBottomValue +
borderBottomValue +
marginBottomValue +
bottomValue);
heightIsAuto = WEBC_FALSE;
break;
}
if (width.type != CSS_LENGTH_UNIT_AUTO)
{
widthValue = CSS_LengthToPixels(&width, parentWidth, emHeight, exHeight);
WEBC_BOOL leftAligned = (textDirection == TU_DIR_RTL)?
(right.type == CSS_LENGTH_UNIT_AUTO && left.type != CSS_LENGTH_UNIT_AUTO) :
(left.type != CSS_LENGTH_UNIT_AUTO || right.type == CSS_LENGTH_UNIT_AUTO);
if (leftAligned)
{
// ignore right and margin-right
leftValue = GetPixelLength(&left, parentWidth, emHeight, exHeight, autoIndentLeft);
marginLeftValue = GetPixelLength(CSS_PROPERTY_MARGIN_LEFT, parentWidth, emHeight, exHeight, 0);
}
else
{
DISPLAY_INT marginRightValue;
// ignore left and margin-left
rightValue = GetPixelLength(&right, parentWidth, emHeight, exHeight, autoIndentRight);
marginRightValue = GetPixelLength(CSS_PROPERTY_MARGIN_RIGHT, parentWidth, emHeight, exHeight, 0);
leftValue = parentWidth -
(rightValue +
marginRightValue +
borderRightValue +
paddingRightValue +
widthValue +
paddingLeftValue +
borderLeftValue);
marginLeftValue = 0;
}
}
else
{
// width.type == CSS_LENGTH_UNIT_AUTO
// try to get the intrinsic width of the element. This might rely on the
// calculated height of the element; for example, in the case of an image with
// specified height and auto width, the aspect ratio of the source image determines
// the resulting intrinsic width.
DISPLAY_INT marginRightValue;
WEBC_BOOL hasIntrinsicWidth = GetIntrinsicWidth(&widthValue, heightValue, heightIsAuto);
if (left.type == CSS_LENGTH_UNIT_AUTO && right.type != CSS_LENGTH_UNIT_AUTO && hasIntrinsicWidth)
{
rightValue = GetPixelLength(&right, parentWidth, emHeight, exHeight, autoIndentRight);
marginRightValue = GetPixelLength(CSS_PROPERTY_MARGIN_RIGHT, parentWidth, emHeight, exHeight, 0);
marginLeftValue = 0;
leftValue = parentWidth -
(widthValue +
borderLeftValue +
paddingLeftValue +
paddingRightValue +
borderRightValue +
marginRightValue +
rightValue);
}
else
{
leftValue = GetPixelLength(&left, parentWidth, emHeight, exHeight, autoIndentLeft);
marginLeftValue = GetPixelLength(CSS_PROPERTY_MARGIN_LEFT, parentWidth, emHeight, exHeight, 0);
if (!hasIntrinsicWidth || (right.type != CSS_LENGTH_UNIT_AUTO && left.type != CSS_LENGTH_UNIT_AUTO))
{
// right and left are both non-auto, OR element has no intrinsic width:
// calculate left, right, and margins then extrapolate width
rightValue = GetPixelLength(&right, parentWidth, emHeight, exHeight, autoIndentRight);
marginRightValue = GetPixelLength(CSS_PROPERTY_MARGIN_RIGHT, parentWidth, emHeight, exHeight, 0);
widthValue = parentWidth -
(leftValue +
marginLeftValue +
borderLeftValue +
paddingLeftValue +
paddingRightValue +
borderRightValue +
marginRightValue +
rightValue);
// we don't want to stretch the width beyond what the maximum content
// width; only give the element as much space as it actually needs.
if (right.type == CSS_LENGTH_UNIT_AUTO || left.type == CSS_LENGTH_UNIT_AUTO)
{
// to speed this up, bail out of GetMaxWidth when we exceed widthValue
DISPLAY_INT maxWidth = GetMaxWidthSmallerThan(widthValue);
// NOTE: GetMaxWidth and GetMaxWidthSmallerThan return the total width
// of the element, including borders and padding. So we must subtract
// borders and padding to make it correspond to the contentWidth
maxWidth -= (borderLeftValue + paddingLeftValue + paddingRightValue + borderRightValue);
if (maxWidth < widthValue)
{
WEBC_BOOL leftAligned = (textDirection == TU_DIR_RTL)?
(right.type == CSS_LENGTH_UNIT_AUTO && left.type != CSS_LENGTH_UNIT_AUTO) :
(left.type != CSS_LENGTH_UNIT_AUTO || right.type == CSS_LENGTH_UNIT_AUTO);
if (!leftAligned)
{
// box is right-aligned
// adjust leftValue to account for the unused space
leftValue += (widthValue - maxWidth);
}
widthValue = maxWidth;
}
}
}
}
}
// Now format the content of this element
DISPLAY_INT contentHeight = FormatContentPositioned (
widthValue,
heightValue,
heightIsAuto,
borderLeftValue,
borderTopValue,
borderRightValue,
borderBottomValue,
paddingLeftValue,
paddingTopValue,
paddingRightValue,
paddingBottomValue
);
// Find the top edge and height
// NOTE: top and bottom percentages are relative to parent's HEIGHT, whereas
// margin-top and margin-bottom are relative to parent's WIDTH, except in the root
// context (tbd - handle this special case correctly)
switch (verticalCase)
{
case NOTHING_KNOWN:
case TOP_KNOWN:
heightValue = contentHeight;
break;
case BOTTOM_KNOWN:
// height = content height
// top = parentHeight - (height + bottom)
heightValue = contentHeight;
topValue = parentHeight -
(borderTopValue +
paddingTopValue +
heightValue +
paddingBottomValue +
borderBottomValue +
marginBottomValue +
bottomValue);
break;
}
rect.Set (0, 0,
borderLeftValue + paddingLeftValue + widthValue + paddingRightValue + borderRightValue - 1,
borderTopValue + paddingTopValue + heightValue + paddingBottomValue + borderBottomValue - 1
);
rect.MoveTo (
parentBorderLeft + leftValue + marginLeftValue,
parentBorderTop + topValue + marginTopValue
);
if (position == TU_POSITION_FIXED)
{
rect.Shift(containingBlock.left, containingBlock.top);
}
Move(&rect);
if (generateChildContext)
{
childContext = childContextFactory->newPositioned (
&rect,
heightIsAuto,
TU_DIR_LTR,
borderLeftValue,
borderTopValue,
borderRightValue,
borderBottomValue,
paddingLeftValue,
paddingTopValue,
paddingRightValue
);
}
}
return (childContext);
}
void WebEditBox::Format (void)
{
WebGraphics *gc = GetGraphics();
WebFont font = mFont.GetFont();
if (!gc || !mpText || !font)
{
return;
}
int i = 0;
do
{
long iIndex = 0;
long iNextWord;
DISPLAY_INT iWidthUsed = 0;
WebRect box;
DISPLAY_INT iWordWidth;
GetTextRect(&box);
DISPLAY_INT iWidthAvailable = box.Width();
//printf("Box w == %d\n",iWidthAvailable);
miMaxLineWidth = 0;
miNumLines = 1;
while (mpText[iIndex])
{
switch (mpText[iIndex])
{
case (WebChar) '\r':
case (WebChar) '\n':
// break the line at CR/LF
AddLine(++iIndex);
iWidthUsed = 0;
break;
default:
if (!(mEditFlags & EDIT_FLAG_WRAP))
{
iWordWidth = gc->TextWidthLen(&mpText[iIndex], font, 1);
iWidthUsed += iWordWidth;
miMaxLineWidth = EBSMAX(miMaxLineWidth, iWidthUsed);
iIndex++;
}
else
{
#if (TEXT_BOX_SCROLL_DISABLED)
WebChar mpText1='m';
DISPLAY_INT charWidth = gc->TextWidthLen(&mpText[iIndex], font, 1);
if (iWidthUsed + charWidth > (iWidthAvailable) && iWidthUsed > 0)
{
AddLine(iIndex);
iWidthUsed = charWidth;
miMaxLineWidth = EBSMAX(miMaxLineWidth, charWidth);
iIndex++;
}
else
{
iIndex++;
iWidthUsed += charWidth;
}
}//switch statement
#else
if (IS_WHITESPACE(mpText[iIndex]))
{
iWidthUsed += gc->TextWidthLen(&mpText[iIndex++], font, 1);
}
else
{
iNextWord = iIndex;
while (!IS_WHITESPACE(mpText[iNextWord]) && mpText[iNextWord])
{
iNextWord++;
}
iWordWidth = gc->TextWidthLen(&mpText[iIndex], font, iNextWord-iIndex);
// only do a line break if there is something already on the line
if (iWidthUsed + iWordWidth > iWidthAvailable && iWidthUsed > 0)
{
// the next word_ will not fit; break the line.
AddLine(iIndex);
iWidthUsed = iWordWidth;
miMaxLineWidth = EBSMAX(miMaxLineWidth, iWordWidth);
iIndex = iNextWord;
}
else
{
// the next word_ will fit on this line
iWidthUsed += iWordWidth;
miMaxLineWidth = EBSMAX(miMaxLineWidth, iWordWidth);
iIndex = iNextWord;
}
}
}
#endif
break;
}
}
i++;
}
void WebEditBox::DrawThisOnly (DISPLAY_INT x, DISPLAY_INT y, WebGraphics *gc)
{
WebChar c;
long line;
WebRect box;
GetFrameRect(&box);
box.Shift(x,y);
// gc->StartBuffer(); // begin buffering graphics commands
gc->Rectangle(&box, GetBgColor(gc), GetBgColor(gc), 1); // draw background
DrawFrame(&box, gc);
// save the current graphics context clip rectangle and set clipping to the
// text display region of the widget
GetTextRect(&box);
box.Shift(x,y);
WebRect clipSave;
gc->GetClip(&clipSave);
if (clipSave.Overlaps(&box))
{
WebRect clip(box);
clip.And(&clipSave);
gc->SetClip(&clip);
miXOffset = (mpHScroll)? mpHScroll->GetPosition() : 0;
miYOffset = (mpVScroll)? mpVScroll->GetPosition() : 0;
// render our text
WebFont font = mFont.GetFont();
if (mpText && font)
{
// this loop draws up to the last line
for (line=0; line<(miNumLines-1); line++)
{
c = mpText[GetLineOffset(line+1)];
mpText[GetLineOffset(line+1)] = 0;
DrawText(gc, box.left - miXOffset, box.top - miYOffset + (line * WEB_FONT_HEIGHT(font)),
mpText + GetLineOffset(line), GetTextColor(gc), 0, 0, font);
mpText[GetLineOffset(line+1)] = c;
}
// now draw the last line of text.
DrawText(gc, box.left - miXOffset, box.top - miYOffset + (line*WEB_FONT_HEIGHT(font)),
mpText + GetLineOffset(line), GetTextColor(gc), 0, 0, font);
// if we have the focus, draw the cursor
if ((mFlags & DISPLAY_FLAG_FOCUS) && !(mFlags & DISPLAY_FLAG_DISABLED))
{
// now render the selected portion in reverse video (if we have one)
if (mEditFlags & EDIT_FLAG_HAS_SELECTION)
{
long begin = EBSMIN(miCursorPos, miSelectBegin);
long end = EBSMAX(miCursorPos, miSelectBegin);
long beginLine = FindLine(begin), endLine = FindLine(end);
DISPLAY_INT textLeft;
long currentBegin, currentEnd;
for (line=beginLine; line<=endLine; line++)
{
currentBegin = EBSMAX(begin, GetLineOffset(line));
if (line == endLine)
{
currentEnd = end;
}
else
{
currentEnd = EBSMIN(end, GetLineOffset(line+1));
}
textLeft = gc->TextWidthLen(mpText + GetLineOffset(line), font, EBSMAX(0, begin - GetLineOffset(line)));
c = mpText[currentEnd];
mpText[currentEnd] = 0;
DrawText(gc, box.left - miXOffset + textLeft,
box.top - miYOffset + (line*WEB_FONT_HEIGHT(font)),
mpText + currentBegin, GetBgColor(gc), GetSelectColor(gc), 1, font);
mpText[currentEnd] = c;
}
}
DISPLAY_INT cursorX = box.left - miXOffset +
gc->TextWidthLen(mpText + GetLineOffset(miCurrentLine), font, miCursorPos - GetLineOffset(miCurrentLine)) ;
box.Set(cursorX, box.top - miYOffset + WEB_FONT_HEIGHT(font)*miCurrentLine,
cursorX, box.top - miYOffset + WEB_FONT_HEIGHT(font)*(miCurrentLine+1));
gc->Rectangle(&box, GetSelectColor(gc), GetSelectColor(gc), 1);
}
}
gc->SetClip(&clipSave); // restore the clip rectangle
} // if clip overlaps
/* if (mpVScroll && mpHScroll)
{
GetCornerRect(&box);
box.Shift(x,y);
gc->Rectangle(&box, LIGHTGRAY, LIGHTGRAY, 1);
}*/
// gc->EndBuffer(); // send all buffered commands to the display
}
// x,y are in same coordinate space as this->mRect; viewX, viewY is the upper left corner of the viewport in
// the coordinate space of this->mRect
DisplayElement *DisplayElement::TrapEventPoint (DISPLAY_INT x, DISPLAY_INT y, DISPLAY_INT viewX, DISPLAY_INT viewY)
{
// if we clip our children to our rect, and the point is outside our rect,
// then fail right away
if (GetOverflow() == DISPLAY_OVERFLOW_HIDDEN)
{
WebRect clipRect;
GetClipRect(&clipRect);
if (!clipRect.Contains(x,y))
{
return (0);
}
}
DisplayElement *pChild = mpLastChild, *pFound;
// now search positive-z children in reverse order
while (pChild && (pChild->GetZIndex() >= 0))
{
if (pChild->mFlags & DISPLAY_FLAG_FIXED_POS)
{
pFound = pChild->TrapEventPoint(x - (mRect.left + viewX), y - (mRect.top + viewY), -mRect.left, -mRect.top);
}
else
{
pFound = pChild->TrapEventPoint(x - mRect.left, y - mRect.top, viewX - mRect.left, viewY - mRect.top);
}
if (pFound)
{
return (pFound);
}
pChild = pChild->mpPrev;
}
// if we contain the point, trap it
if (TrapEventInThis(x,y))
{
return (this);
}
// now search negative-z children in reverse order
while (pChild)
{
if (pChild->mFlags & DISPLAY_FLAG_FIXED_POS)
{
pFound = pChild->TrapEventPoint(x - (mRect.left + viewX), y - (mRect.top + viewY), -mRect.left, -mRect.top);
}
else
{
pFound = pChild->TrapEventPoint(x - mRect.left, y - mRect.top, viewX - mRect.left, viewY - mRect.top);
}
if (pFound)
{
return (pFound);
}
pChild = pChild->mpPrev;
}
return (0);
}
void DisplayElement::Draw (DISPLAY_INT iScreenX, DISPLAY_INT iScreenY, WebRect *pViewport, WebGraphics *pGC)
{
DisplayElement *pChild = mpFirstChild;
WebRect clip, saveClip, screenClip;
WEBC_BOOL clipRestore = WEBC_FALSE;
pGC->GetClip(&saveClip);
clip.Set(&saveClip);
if (GetOverflow() != DISPLAY_OVERFLOW_VISIBLE)
//if (GetOverflow() == DISPLAY_OVERFLOW_HIDDEN)
{
GetClipRect(&screenClip);
screenClip.Shift(iScreenX - mRect.left, iScreenY - mRect.top);
if (!clip.Overlaps(&screenClip))
{
// we're not visible, so neither are our children
return;
}
clip.And(&screenClip);
pGC->SetClip(&clip);
clipRestore = WEBC_TRUE;
}
WebRect screenRect(mRect);
screenRect.MoveTo(iScreenX, iScreenY);
mScreenRect = screenRect; // April2013 - save the screenrect of last known draw and subtract boundaries of the display manager screenrect
DisplayManager*pManager= this->GetManager();
if (pManager && pManager->mBrowser)
pManager=pManager->mBrowser->GetDisplayManager();
if (pManager)
{
WebRect r;
// printf("Not working all the way \n");
r=pManager->mScreenRect;
mScreenRect.top -= r.top;
mScreenRect.bottom -= r.top;
mScreenRect.left -= r.left;
mScreenRect.right -= r.left;
} // April2013 - end save the screenrect of last known draw and subtract boundaries of the display manager screenrect
// Start drawing
// pGC->StartBuffer();
// Draw negative-z children
while (pChild && (pChild->GetZIndex() < 0))
{
if (pChild->mFlags & DISPLAY_FLAG_FIXED_POS)
{
pChild->Draw(pViewport->left + pChild->mRect.left, pViewport->top + pChild->mRect.top, pViewport, pGC);
}
else
{
pChild->Draw(iScreenX + pChild->mRect.left, iScreenY + pChild->mRect.top, pViewport, pGC);
}
pChild = pChild->mpNext;
}
// if I am visible
if (screenRect.Overlaps(&clip))
{
// Draw myself
DrawThisOnly(iScreenX, iScreenY, pGC);
}
#if (INCLUDE_EXPERIMENTAL_DIV_SCROLLBARS)
int xContentOffset=0;
int yContentOffset=0;
if (clipRestore && vScrollWidth() || hScrollWidth())
{
WebRect contentClip;
contentClip.Set(&clip);
contentClip.SetHeight(contentClip.Height()-hScrollWidth());
contentClip.SetWidth(contentClip.Width()-vScrollWidth());
pGC->SetClip(&contentClip);
if (GetHScroll())
{
WebHScroll *pScroll = (WebHScroll *)GetHScroll();
xContentOffset=pScroll->GetPosition();
}
if (GetVScroll())
{
WebVScroll *pScroll = (WebVScroll *)GetVScroll();
yContentOffset=pScroll->GetPosition();
if (yContentOffset)
{ // If we have a y offset step i nto the content holder element
// so we don't exclude the whole thing becuase it is out of our
// range.
// if (GetInlineContentHolder())
// pChild = GetInlineContentHolder()->mpFirstChild;
;
}
}
}
#endif
// Draw positive-z children
while (pChild)
{
#if (INCLUDE_EXPERIMENTAL_DIV_SCROLLBARS)
if (pChild->IncludeInFlow() && pChild->mRect.bottom >= yContentOffset && pChild->mRect.right >= xContentOffset)
{
if (pChild->mFlags & DISPLAY_FLAG_FIXED_POS)
{
pChild->Draw(pViewport->left+pChild->mRect.left-xContentOffset, pViewport->top+pChild->mRect.top-yContentOffset, pViewport, pGC);
}
else
{
pChild->Draw(iScreenX + pChild->mRect.left-xContentOffset, iScreenY+pChild->mRect.top-yContentOffset, pViewport, pGC);
}
}
#else
if (pChild->mFlags & DISPLAY_FLAG_FIXED_POS)
{
pChild->Draw(pViewport->left + pChild->mRect.left, pViewport->top + pChild->mRect.top, pViewport, pGC);
}
else
{
pChild->Draw(iScreenX + pChild->mRect.left, iScreenY + pChild->mRect.top, pViewport, pGC);
}
#endif
pChild = pChild->mpNext;
}
if (clipRestore)
{
pGC->SetClip(&saveClip);
}
#if (INCLUDE_EXPERIMENTAL_DIV_SCROLLBARS)
if (clipRestore && vScrollWidth() || hScrollWidth())
{
DisplayElement *pScroll;
if (GetHScroll())
{
pScroll = (WebHScroll *)GetHScroll();
pScroll->Draw(iScreenX + pScroll->mRect.left, iScreenY + pScroll->mRect.top, pViewport, pGC);
}
if (GetVScroll())
{
pScroll = (WebVScroll *)GetVScroll();
pScroll->Draw(iScreenX + pScroll->mRect.left, iScreenY + pScroll->mRect.top, pViewport, pGC);
}
pGC->SetClip(&saveClip);
}
#endif
// pGC->EndBuffer();
}
void DisplayManager::UpdateScrollBuffer (void)
{
if ((GetManagerFlags() & MANAGER_FLAG_DIRTY) &&
mRoot.Get() &&
mScrollBuffer)
{
WebRect* dirty;
ClearManagerFlag(MANAGER_FLAG_BUFFER_DIRTY);
// move the dirty rectangle list onto the stack so it can't be corrupted
vector dirtyListCopy = mDirtyList;
mDirtyList.first = 0;
mDirtyList.last = 0;
vector_iterator vi;
DISPLAY_INT viewWidth = mViewRect.Width();
DISPLAY_INT viewHeight = mViewRect.Height();
PresetWebRect viewCorner(&mViewRect);
viewCorner.MoveTo(0,0);
PresetWebRect bufferView(&mViewRect);
bufferView.MoveTo(mViewRect.left % viewWidth, mViewRect.top % viewHeight);
DISPLAY_INT bufferLeft = mViewRect.left - (mViewRect.left % viewWidth);
DISPLAY_INT bufferTop = mViewRect.top - (mViewRect.top % viewHeight);
dirty = (WebRect*) vector_get_first(&dirtyListCopy, &vi);
while (dirty)
{
if (mViewRect.Overlaps(dirty))
{
WebRect bufferDirty;
bufferDirty.left = dirty->left - bufferLeft;
bufferDirty.top = dirty->top - bufferTop;
bufferDirty.SizeTo(dirty->Width(), dirty->Height());
bufferDirty.And(&bufferView);
mScrollBuffer->SetClip(&bufferDirty);
DISPLAY_INT x = mRoot.Get()->mRect.left - bufferLeft;
DISPLAY_INT y = mRoot.Get()->mRect.top - bufferTop;
mRoot.Get()->Draw (x, y, &bufferView, mScrollBuffer);
PresetWebRect defaultClip(0, 0, viewWidth * 2 - 1, viewHeight * 2 - 1);
mScrollBuffer->SetClip(&defaultClip);
// copy bufferDirty 3 times, split if necessary
PresetWebRect northwest (0, 0, viewWidth - 1, viewHeight - 1);
PresetWebRect northeast (viewWidth, 0, viewWidth * 2 - 1, viewHeight - 1);
PresetWebRect southeast (viewWidth, viewHeight, viewWidth * 2 - 1, viewHeight * 2 - 1);
PresetWebRect southwest (0, viewHeight, viewWidth - 1, viewHeight * 2 - 1);
if (bufferDirty.Overlaps(&northwest))
{
PresetWebRect copyFrom (&bufferDirty);
copyFrom.And(&northwest);
PresetWebRect copyTo (©From);
copyTo.ShiftOver(mViewRect.Width());
mScrollBuffer->CopyBufferRegion(©To, mScrollBuffer, copyFrom.left, copyFrom.top);
copyTo.ShiftDown(mViewRect.Height());
mScrollBuffer->CopyBufferRegion(©To, mScrollBuffer, copyFrom.left, copyFrom.top);
copyTo.ShiftOver(-mViewRect.Width());
mScrollBuffer->CopyBufferRegion(©To, mScrollBuffer, copyFrom.left, copyFrom.top);
}
if (bufferDirty.Overlaps(&northeast))
{
PresetWebRect copyFrom (&bufferDirty);
copyFrom.And(&northeast);
PresetWebRect copyTo (©From);
copyTo.ShiftDown(mViewRect.Height());
mScrollBuffer->CopyBufferRegion(©To, mScrollBuffer, copyFrom.left, copyFrom.top);
copyTo.ShiftOver(-mViewRect.Width());
mScrollBuffer->CopyBufferRegion(©To, mScrollBuffer, copyFrom.left, copyFrom.top);
copyTo.ShiftDown(-mViewRect.Height());
mScrollBuffer->CopyBufferRegion(©To, mScrollBuffer, copyFrom.left, copyFrom.top);
}
if (bufferDirty.Overlaps(&southeast))
{
PresetWebRect copyFrom (&bufferDirty);
copyFrom.And(&southeast);
PresetWebRect copyTo (©From);
copyTo.ShiftDown(-mViewRect.Height());
mScrollBuffer->CopyBufferRegion(©To, mScrollBuffer, copyFrom.left, copyFrom.top);
copyTo.ShiftOver(-mViewRect.Width());
mScrollBuffer->CopyBufferRegion(©To, mScrollBuffer, copyFrom.left, copyFrom.top);
copyTo.ShiftDown(mViewRect.Height());
mScrollBuffer->CopyBufferRegion(©To, mScrollBuffer, copyFrom.left, copyFrom.top);
}
if (bufferDirty.Overlaps(&southwest))
{
PresetWebRect copyFrom (&bufferDirty);
copyFrom.And(&southwest);
PresetWebRect copyTo (©From);
copyTo.ShiftDown(-mViewRect.Height());
mScrollBuffer->CopyBufferRegion(©To, mScrollBuffer, copyFrom.left, copyFrom.top);
copyTo.ShiftOver(mViewRect.Width());
mScrollBuffer->CopyBufferRegion(©To, mScrollBuffer, copyFrom.left, copyFrom.top);
copyTo.ShiftDown(mViewRect.Height());
mScrollBuffer->CopyBufferRegion(©To, mScrollBuffer, copyFrom.left, copyFrom.top);
}
}
dirty = (WebRect*) vector_get_next(&vi);
}
// this ensures the dirty list is just the same as when we entered
vector_delete(&mDirtyList);
if (!this->GetManager())
{
// if we're the root manager, we'll need this list in a sec.
mDirtyList = dirtyListCopy;
}
else
{
ClearManagerFlag(MANAGER_FLAG_DIRTY);
vector_delete(&dirtyListCopy);
}
}
}
void DisplayManager::SetViewport (WebRect *pViewRect)
{
if (!mViewRect.Equals(pViewRect))
{
PresetWebRect oldRect(&mViewRect);
mViewportChanged = WEBC_TRUE;
mViewRect.Set(pViewRect);
CorrectViewportPosition();
#ifdef WEBC_BUFFER_SCROLLING
if (mManagerFlags & MANAGER_FLAG_BUFFER_SCROLL)
{
WebGraphics* gc = this->GetGraphics();
if (gc)
{
if (mScrollBuffer == 0)
{
mScrollBuffer = gc->CreateBuffer(mViewRect.Width() * 2, mViewRect.Height() * 2);
}
else
{
if (oldRect.Width() != mViewRect.Width() ||
oldRect.Height() != mViewRect.Height())
{
mScrollBuffer = gc->ResizeBuffer(mScrollBuffer, mViewRect.Width() * 2, mViewRect.Height() * 2);
AddDirtyRect(&mViewRect);
SetManagerFlag(MANAGER_FLAG_DIRTY);
return;
}
}
if (mScrollBuffer)
{
// find non-overlapping regions
if (mViewRect.Overlaps(&oldRect))
{
PresetWebRect viewRect(&mViewRect);
WebRect extraRect;
int count = viewRect.Split(&oldRect, &extraRect);
if (count > 0)
{
if (count > 1)
{
if (count > 2)
{
if (!extraRect.Empty())
{
AddDirtyRect(&extraRect);
}
}
if (!oldRect.Empty())
{
AddDirtyRect(&oldRect);
}
}
if (!viewRect.Empty())
{
AddDirtyRect(&viewRect);
}
}
}
else
{
AddDirtyRect(&mViewRect);
}
SetManagerFlag(MANAGER_FLAG_DIRTY);
}
}
}
#endif
}
}
void DisplayManager::Draw(DISPLAY_INT x, DISPLAY_INT y, WebRect *pViewport, WebGraphics *pGC)
{
if (mNoRefresh)
{
DisplayManager* parentDisplayManager = GetManager();
if (parentDisplayManager)
{
// This handles the case where a DisplayManager that is NOT the root
// DisplayManager has a positive refresh lock, prohibiting its being
// drawn, but the parent DisplayManager does not (otherwise we would
// not even be in our Draw method); in this case:
//
// IF this element is within the collective invalid region being
// painted, THEN we want to re-invalidate the invalid part of (this),
// which will cause said region to re-paint when the refresh lock
// is removed from this element and this->Refresh is eventually called.
WebRect clipRect;
pGC->GetClip(&clipRect);
WebRect screenRect(mRect);
screenRect.MoveTo(x,y);
if (clipRect.Overlaps(&screenRect))
{
SetManagerFlag(MANAGER_FLAG_TRIED_TO_DRAW);
//screenRect.And(&clipRect);
//screenRect.Shift(-pViewport->left, -pViewport->top);
//parentDisplayManager->InvalidateViewportRegion(&screenRect);
}
}
return;
}
FormatResult result;
switch (GetScrollMode())
{
case SCROLL_MODE_NONE:
if (mpVScroll || mpHScroll)
{
DetachVScroll();
DetachHScroll();
UpdateViewport();
}
break;
case SCROLL_MODE_HSCROLL:
if (mpVScroll || !mpHScroll)
{
DetachVScroll();
AttachHScroll();
UpdateViewport();
}
break;
case SCROLL_MODE_VSCROLL:
if (!mpVScroll || mpHScroll)
{
AttachVScroll();
DetachHScroll();
UpdateViewport();
}
break;
case SCROLL_MODE_BOTH:
if (!mpVScroll || !mpHScroll)
{
AttachVScroll();
AttachHScroll();
UpdateViewport();
}
break;
case SCROLL_MODE_AUTO:
break;
}
if (mRoot.Get())
{
int i = 0;
do
{
result = mRoot.Get()->FormatForViewport(&mViewRect, (mpHScroll != 0), (mpVScroll != 0));
if (GetScrollMode() == SCROLL_MODE_AUTO)
{
if (result == DISPLAY_FORMAT_NEEDS_VSCROLL)
{
// create a vscroll bar
if (mpVScroll)
{
// what the... we already have a vscroll bar!
break;
}
AttachVScroll();
// check for creation failure - may indicate low memory condition
if (!mpVScroll)
{
// can't go on...
break;
}
UpdateViewport();
}
else if (result == DISPLAY_FORMAT_NEEDS_HSCROLL)
{
// create a hscroll bar
if (mpHScroll)
{
// what the... we already have a hscroll bar!
break;
}
AttachHScroll();
// check for creation failure - may indicate low memory condition
if (!mpHScroll)
{
// can't go on...
break;
}
UpdateViewport();
}
}
else
{
break;
}
// put a hard upper bound on the number of times we try to re-format
// (4, since this means we've covered all combinations of horizontal
// and vertical scroll bars on the window)
i++;
}
while (result != DISPLAY_FORMAT_SUCCESS && i < 5);
if (GetScrollMode() == SCROLL_MODE_AUTO)
{
WebRect rootBounds;
GetRootBounds(&rootBounds);
if (rootBounds.Height() <= mViewRect.Height() && mpVScroll)
{
DetachVScroll();
UpdateViewport();
mRoot.Get()->FormatForViewport(&mViewRect, (mpHScroll != 0), (mpVScroll != 0));
GetRootBounds(&rootBounds);
}
if (rootBounds.Width() <= mViewRect.Width() && mpHScroll)
{
DetachHScroll();
UpdateViewport();
mRoot.Get()->FormatForViewport(&mViewRect, (mpHScroll != 0), (mpVScroll != 0));
GetRootBounds(&rootBounds);
}
if (rootBounds.Height() <= mViewRect.Height() && mpVScroll)
{
DetachVScroll();
UpdateViewport();
mRoot.Get()->FormatForViewport(&mViewRect, (mpHScroll != 0), (mpVScroll != 0));
GetRootBounds(&rootBounds);
}
}
mViewportChanged = WEBC_FALSE;
CorrectViewportPosition();
if (mpFocus && (mpVScroll!=0) && (mpHScroll!=0))
{
WebRect focusRect;
WebRect elemRect;
WEBC_BOOL ensureFocusVisible = mpFocus->GetFocusRect (&focusRect);
if (ensureFocusVisible)
{
GetElementRect(&elemRect, mpFocus);
focusRect.Shift(elemRect.left, elemRect.top);
// this will adjust the scroll bars so that the given rect is in view
EnsureRectVisible(&focusRect);
}
}
}
DisplayElement::Draw(x, y, pViewport, pGC);
}
void DisplayManager::DrawThisOnly (DISPLAY_INT x, DISPLAY_INT y, WebGraphics *gc)
{
DISPLAY_INT scrollLeft = (mpHScroll)? mpHScroll->GetPosition() : mViewRect.left;
DISPLAY_INT scrollTop = (mpVScroll)? mpVScroll->GetPosition() : mViewRect.top;
mViewRect.MoveTo(scrollLeft, scrollTop);
WebRect padding;
GetPaddingWidth(&padding);
// find our viewport rect in screen coordinates
WebRect screenRect(mRect);
screenRect.MoveTo(x,y);
WebRect screenView(screenRect);
screenView.Shift(padding.left, padding.top);
screenView.SizeTo(mViewRect.Width(), mViewRect.Height());
WebRect saveClip;
gc->GetClip(&saveClip);
WebRect screenDirty(screenView);
if (saveClip.Overlaps(&screenDirty))
{
screenDirty.And(&saveClip);
#ifdef WEBC_BUFFER_SCROLLING
if ((GetManagerFlags() & MANAGER_FLAG_BUFFER_SCROLL) &&
mScrollBuffer)
{
if (GetManagerFlags() & MANAGER_FLAG_BUFFER_DIRTY)
{
UpdateScrollBuffer();
}
// instead of invoking the Draw method of mRoot, just copy the contents of the
// buffer at this location.
gc->CopyBufferRegion (
&screenDirty,
mScrollBuffer,
screenDirty.left - screenView.left + (mViewRect.left % mViewRect.Width()),
screenDirty.top - screenView.top + (mViewRect.top % mViewRect.Height()));
}
else
{
#endif
gc->SetClip(&screenDirty);
if (mRoot.Get())
{
mRoot.Get()->Draw(screenView.left + mRoot.Get()->mRect.left - scrollLeft,
screenView.top + mRoot.Get()->mRect.top - scrollTop,
&screenView, gc);
}
#ifdef WEBC_BUFFER_SCROLLING
}
#endif
gc->SetClip(&saveClip);
}
// draw the little gray rectangle
if (mpVScroll && mpHScroll && webc_GetDefaultBoolean(WEBC_DEFAULT_DRAW_SCROLL_CORNER))
{
WebRect box;
WebColor c = gc->RGBToColor(webc_GetDefaultColor(WEBC_DEFAULT_SCROLL_CORNER_COLOR));
box.SetSizeAndPosition(screenView.right + 1, screenView.bottom + 1, mpVScroll->Width(), mpHScroll->Height());
gc->Rectangle(&box, c, c, 1);
}
}