bool
nsCSSCompressedDataBlock::HasDefaultBorderImageOutset() const
{
const nsCSSRect &outset =
ValueFor(eCSSProperty_border_image_outset)->GetRectValue();
return outset.AllSidesEqualTo(nsCSSValue(0.0f, eCSSUnit_Number));
}
bool
nsCSSCompressedDataBlock::HasDefaultBorderImageWidth() const
{
const nsCSSRect &width =
ValueFor(eCSSProperty_border_image_width)->GetRectValue();
return width.AllSidesEqualTo(nsCSSValue(1.0f, eCSSUnit_Number));
}
bool
nsCSSCompressedDataBlock::HasDefaultBorderImageRepeat() const
{
const nsCSSValuePair &repeat =
ValueFor(eCSSProperty_border_image_repeat)->GetPairValue();
return repeat.BothValuesEqualTo(
nsCSSValue(NS_STYLE_BORDER_IMAGE_REPEAT_STRETCH, eCSSUnit_Enumerated));
}
bool
nsCSSCompressedDataBlock::HasDefaultBorderImageSlice() const
{
const nsCSSValueList *slice =
ValueFor(eCSSProperty_border_image_slice)->GetListValue();
return !slice->mNext &&
slice->mValue.GetRectValue().AllSidesEqualTo(
nsCSSValue(1.0f, eCSSUnit_Percent));
}
bool
nsCSSCompressedDataBlock::TryReplaceValue(nsCSSProperty aProperty,
nsCSSExpandedDataBlock& aFromBlock,
bool *aChanged)
{
nsCSSValue* newValue = aFromBlock.PropertyAt(aProperty);
NS_ABORT_IF_FALSE(newValue && newValue->GetUnit() != eCSSUnit_Null,
"cannot replace with empty value");
const nsCSSValue* oldValue = ValueFor(aProperty);
if (!oldValue) {
*aChanged = false;
return false;
}
*aChanged = MoveValue(newValue, const_cast<nsCSSValue*>(oldValue));
aFromBlock.ClearPropertyBit(aProperty);
return true;
}
void
BChannelSlider::_DrawThumbs()
{
if (fBacking == NULL) {
// This is the idea: we build a bitmap by taking the coordinates
// of the first and last thumb frames (top/left and bottom/right)
BRect first = ThumbFrameFor(0);
BRect last = ThumbFrameFor(CountChannels() - 1);
BRect rect(first.LeftTop(), last.RightBottom());
if (fIsVertical)
rect.top -= ThumbRangeFor(0);
else
rect.right += ThumbRangeFor(0);
rect.OffsetTo(B_ORIGIN);
fBacking = new (std::nothrow) BBitmap(rect, B_RGB32, true);
if (fBacking) {
fBackingView = new (std::nothrow) BView(rect, "", 0, B_WILL_DRAW);
if (fBackingView) {
if (fBacking->Lock()) {
fBacking->AddChild(fBackingView);
fBackingView->SetFontSize(10.0);
fBackingView->SetLowColor(
ui_color(B_PANEL_BACKGROUND_COLOR));
fBackingView->SetViewColor(
ui_color(B_PANEL_BACKGROUND_COLOR));
fBacking->Unlock();
}
} else {
delete fBacking;
fBacking = NULL;
}
}
}
if (fBacking && fBackingView) {
BPoint drawHere;
BRect bounds(fBacking->Bounds());
drawHere.x = (Bounds().Width() - bounds.Width()) / 2.0;
drawHere.y = (Bounds().Height() - bounds.Height()) - kPadding
- fLineFeed;
if (fBacking->Lock()) {
// Clear the view's background
fBackingView->FillRect(fBackingView->Bounds(), B_SOLID_LOW);
BRect channelArea;
// draw the entire control
for (int32 channel = 0; channel < CountChannels(); channel++) {
channelArea = ThumbFrameFor(channel);
bool pressed = IsTracking()
&& (channel == fCurrentChannel || fAllChannels);
DrawChannel(fBackingView, channel, channelArea, pressed);
}
// draw some kind of current value tool tip
if (fCurrentChannel != -1 && fMinPoint != 0) {
char valueString[32];
snprintf(valueString, 32, "%ld", ValueFor(fCurrentChannel));
float stringWidth = fBackingView->StringWidth(valueString);
float width = max_c(10.0, stringWidth);
BRect valueRect(0.0, 0.0, width, 10.0);
BRect thumbFrame(ThumbFrameFor(fCurrentChannel));
float thumbDelta(ThumbDeltaFor(fCurrentChannel));
if (fIsVertical) {
valueRect.OffsetTo((thumbFrame.Width() - width) / 2.0
+ fCurrentChannel * thumbFrame.Width(),
thumbDelta + thumbFrame.Height() + 2.0);
if (valueRect.bottom > fBackingView->Frame().bottom)
valueRect.OffsetBy(0.0, -(thumbFrame.Height() + 12.0));
} else {
valueRect.OffsetTo((thumbDelta - (width + 2.0)),
thumbFrame.top);
if (valueRect.left < fBackingView->Frame().left) {
valueRect.OffsetBy(thumbFrame.Width() + width + 2.0,
0.0);
}
}
rgb_color oldColor = fBackingView->HighColor();
fBackingView->SetHighColor(255, 255, 172);
fBackingView->FillRect(valueRect);
fBackingView->SetHighColor(0, 0, 0);
fBackingView->DrawString(valueString, BPoint(valueRect.left
+ (valueRect.Width() - stringWidth) / 2.0, valueRect.bottom
- 1.0));
fBackingView->StrokeRect(valueRect.InsetByCopy(-0.5, -0.5));
fBackingView->SetHighColor(oldColor);
}
fBackingView->Sync();
fBacking->Unlock();
}
DrawBitmapAsync(fBacking, drawHere);
// fClickDelta is used in MouseMoved()
fClickDelta = drawHere;
}
}
void
BChannelSlider::MouseDown(BPoint where)
{
if (!IsEnabled())
BControl::MouseDown(where);
else {
fCurrentChannel = -1;
fMinPoint = 0;
// Search the channel on which the mouse was over
int32 numChannels = CountChannels();
for (int32 channel = 0; channel < numChannels; channel++) {
BRect frame = ThumbFrameFor(channel);
frame.OffsetBy(fClickDelta);
float range = ThumbRangeFor(channel);
if (fIsVertical) {
fMinPoint = frame.top + frame.Height() / 2;
frame.bottom += range;
} else {
// TODO: Fix this, the clickzone isn't perfect
frame.right += range;
fMinPoint = frame.Width();
}
// Click was on a slider.
if (frame.Contains(where)) {
fCurrentChannel = channel;
SetCurrentChannel(channel);
break;
}
}
// Click wasn't on a slider. Bail out.
if (fCurrentChannel == -1)
return;
uint32 buttons = 0;
BMessage* currentMessage = Window()->CurrentMessage();
if (currentMessage != NULL)
currentMessage->FindInt32("buttons", (int32*)&buttons);
fAllChannels = (buttons & B_SECONDARY_MOUSE_BUTTON) == 0;
if (fInitialValues != NULL && fAllChannels) {
delete[] fInitialValues;
fInitialValues = NULL;
}
if (fInitialValues == NULL)
fInitialValues = new (std::nothrow) int32[numChannels];
if (fInitialValues) {
if (fAllChannels) {
for (int32 i = 0; i < numChannels; i++)
fInitialValues[i] = ValueFor(i);
} else {
fInitialValues[fCurrentChannel] = ValueFor(fCurrentChannel);
}
}
if (Window()->Flags() & B_ASYNCHRONOUS_CONTROLS) {
if (!IsTracking()) {
SetTracking(true);
_DrawThumbs();
Flush();
}
_MouseMovedCommon(where, B_ORIGIN);
SetMouseEventMask(B_POINTER_EVENTS, B_LOCK_WINDOW_FOCUS |
B_NO_POINTER_HISTORY);
} else {
do {
snooze(30000);
GetMouse(&where, &buttons);
_MouseMovedCommon(where, B_ORIGIN);
} while (buttons != 0);
_FinishChange();
fCurrentChannel = -1;
fAllChannels = false;
}
}
}
