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 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 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);
}
}
}
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);
}
/*---------------------------------------------------------------------------*/
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 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::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 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 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;
}
}
void WebDropBox::DrawThisOnly (DISPLAY_INT x, DISPLAY_INT y, WebGraphics *gc)
{
WEBC_BOOL focused = (mFlags & DISPLAY_FLAG_FOCUS) || (mState == DROPBOX_STATE_DROPPED);
mListbox.CalculateTextMetrics(gc);
WebRect oldClip;
gc->GetClip(&oldClip);
WebRect clip;
clip.top = y;
clip.left = x;
clip.bottom = y + Height() - 1;
clip.right = x + Width() - 1;
clip.And(&oldClip);
gc->SetClip(&clip);
WebRect rect;
rect.top = y;
rect.left = x;
rect.bottom = y + Height() - 1;
rect.right = x + Width() - 1;
// gc->StartBuffer();
WebColor hilite, lolite, blue, white, black;
HTMLColor col = HTML_RGBAToColor(0,0,0,0);
black = hilite = gc->RGBToColor(col);
col = HTML_RGBAToColor(0xff,0xff,0xff,0);
white = lolite = gc->RGBToColor(col);
col = HTML_RGBAToColor(0,0,0xff,0);
blue = gc->RGBToColor(col);
if (focused)
{
gc->Rectangle(&rect, black, black, WEBC_FALSE);
}
GetFrameRect(&rect);
rect.Shift(x,y);
DrawFrame(&rect, gc);
GetContentRect(&rect);
rect.Shift(x,y);
if (focused)
{
gc->Rectangle(&rect, GetSelectColor(gc), GetSelectColor(gc), WEBC_TRUE);
}
else
{
gc->Rectangle(&rect, GetBgColor(gc), GetBgColor(gc), WEBC_TRUE);
}
if (mpText && mFont.GetFont())
{
DISPLAY_INT offset = (rect.Height() - gc->TextHeight(mpText, mFont.GetFont())) / 2;
clip.Set(&rect);
clip.And(&oldClip);
gc->SetClip(&clip);
gc->Text(rect.left + DROPBOX_PADDING,
rect.top + DROPBOX_PADDING + offset,
mpText, (focused) ? GetBgColor(gc) : GetTextColor(gc),
0, WEBC_FALSE, mFont.GetFont());
}
// gc->EndBuffer();
gc->SetClip(&oldClip);
}