void
BSlider::SetBarThickness(float thickness)
{
if (thickness < 1.0)
thickness = 1.0;
else
thickness = roundf(thickness);
if (thickness != fBarThickness) {
// calculate invalid barframe and extend by hashmark size
float hInset = 0.0;
float vInset = 0.0;
if (fOrientation == B_HORIZONTAL)
vInset = -6.0;
else
hInset = -6.0;
BRect invalid = BarFrame().InsetByCopy(hInset, vInset) | ThumbFrame();
fBarThickness = thickness;
invalid = invalid | BarFrame().InsetByCopy(hInset, vInset)
| ThumbFrame();
Invalidate(invalid);
InvalidateLayout();
}
}
float
BSlider::_MaxPosition() const
{
if (fOrientation == B_HORIZONTAL)
return BarFrame().right - 1.0f;
return BarFrame().top + 1.0f;
}
float
BSlider::_MinPosition() const
{
if (fOrientation == B_HORIZONTAL)
return BarFrame().left + 1.0f;
return BarFrame().bottom - 1.0f;
}
float
VolumeControl::_PointForValue(int32 value) const
{
int32 min, max;
GetLimits(&min, &max);
if (Orientation() == B_HORIZONTAL) {
return ceilf(1.0f * (value - min) / (max - min)
* (BarFrame().Width() - 2) + BarFrame().left + 1);
}
return ceilf(BarFrame().top - 1.0f * (value - min) / (max - min)
* BarFrame().Height());
}
void
BSlider::SetValue(int32 value)
{
if (value < fMinValue)
value = fMinValue;
if (value > fMaxValue)
value = fMaxValue;
if (value == Value())
return;
_SetLocationForValue(value);
BRect oldThumbFrame = ThumbFrame();
// While it would be enough to do this dependent on fUseFillColor,
// that doesn't work out if DrawBar() has been overridden by a sub class
if (fOrientation == B_HORIZONTAL)
oldThumbFrame.top = BarFrame().top;
else
oldThumbFrame.left = BarFrame().left;
BControl::SetValueNoUpdate(value);
BRect invalid = oldThumbFrame | ThumbFrame();
if (Style() == B_TRIANGLE_THUMB) {
// 1) We need to take care of pixels touched because of anti-aliasing.
// 2) We need to update the region with the focus mark as well. (A
// method BSlider::FocusMarkFrame() would be nice as well.)
if (fOrientation == B_HORIZONTAL) {
if (IsFocus())
invalid.bottom += 2;
invalid.InsetBy(-1, 0);
} else {
if (IsFocus())
invalid.left -= 2;
invalid.InsetBy(0, -1);
}
}
Invalidate(invalid);
UpdateTextChanged();
}
void
BSlider::UseFillColor(bool useFill, const rgb_color* barColor)
{
fUseFillColor = useFill;
if (useFill && barColor)
fFillColor = *barColor;
Invalidate(BarFrame());
}
BRect
BSlider::HashMarksFrame() const
{
BRect frame(BarFrame());
if (fOrientation == B_HORIZONTAL) {
frame.top -= 6.0;
frame.bottom += 6.0;
} else {
frame.left -= 6.0;
frame.right += 6.0;
}
return frame;
}
void
BSlider::Draw(BRect updateRect)
{
// clear out background
BRegion background(updateRect);
background.Exclude(BarFrame());
bool drawBackground = true;
if (Parent() && (Parent()->Flags() & B_DRAW_ON_CHILDREN) != 0) {
// This view is embedded somewhere, most likely the Tracker Desktop
// shelf.
drawBackground = false;
}
// ToDo: the triangle thumb doesn't delete its background, so we still have
// to do it Note, this also creates a different behaviour for subclasses,
// depending on the thumb style - if possible this should be avoided.
if (Style() == B_BLOCK_THUMB) {
BRect thumbFrame = ThumbFrame();
if (be_control_look != NULL) {
// fill background where shadow will be...
// TODO: Such drawint dependent behavior should be moved into
// BControlLook of course.
thumbFrame.right--;
thumbFrame.bottom--;
}
background.Exclude(thumbFrame);
}
#if USE_OFF_SCREEN_VIEW
if (!fOffScreenBits)
return;
if (fOffScreenBits->Lock()) {
fOffScreenView->SetViewColor(ViewColor());
fOffScreenView->SetLowColor(LowColor());
#endif
if (drawBackground && background.Frame().IsValid())
OffscreenView()->FillRegion(&background, B_SOLID_LOW);
#if USE_OFF_SCREEN_VIEW
fOffScreenView->Sync();
fOffScreenBits->Unlock();
}
#endif
DrawSlider();
}
void
BSlider::MouseDown(BPoint point)
{
if (!IsEnabled())
return;
if (BarFrame().Contains(point) || ThumbFrame().Contains(point))
fInitialLocation = _Location();
uint32 buttons;
GetMouse(&point, &buttons, true);
_ConstrainPoint(point, fInitialLocation);
SetValue(ValueForPoint(point));
if (_Location() != fInitialLocation)
InvokeNotify(ModificationMessage(), B_CONTROL_MODIFIED);
if (Window()->Flags() & B_ASYNCHRONOUS_CONTROLS) {
SetTracking(true);
SetMouseEventMask(B_POINTER_EVENTS, B_LOCK_WINDOW_FOCUS | B_NO_POINTER_HISTORY);
} else {
// synchronous mouse tracking
BPoint prevPoint;
while (buttons) {
prevPoint = point;
snooze(SnoozeAmount());
GetMouse(&point, &buttons, true);
if (_ConstrainPoint(point, prevPoint)) {
int32 value = ValueForPoint(point);
if (value != Value()) {
SetValue(value);
InvokeNotify(ModificationMessage(), B_CONTROL_MODIFIED);
}
}
}
if (_Location() != fInitialLocation)
Invoke();
}
}
void
SeekSlider::DrawBar()
{
BSlider::DrawBar();
if (IsEnabled())
return;
BRect r(BarFrame());
font_height fh;
GetFontHeight(&fh);
float width = ceilf(StringWidth(fDisabledString.String()));
BPoint textPos;
textPos.x = r.left + (r.Width() - width) / 2.0;
textPos.y = (r.top + r.bottom - ceilf(fh.ascent + fh.descent)) / 2.0
+ ceilf(fh.ascent);
SetHighColor(tint_color(ui_color(B_PANEL_BACKGROUND_COLOR),
B_DARKEN_3_TINT));
SetDrawingMode(B_OP_OVER);
DrawString(fDisabledString.String(), textPos);
}
void
VolumeControl::DrawBar()
{
BRect frame = BarFrame();
BView* view = OffscreenView();
if (be_control_look != NULL) {
uint32 flags = be_control_look->Flags(this);
rgb_color base = LowColor();
rgb_color rightFillColor = (rgb_color){255, 109, 38, 255};
rgb_color leftFillColor = (rgb_color){116, 224, 0, 255};
int32 min, max;
GetLimits(&min, &max);
float position = (float)min / (min - max);
be_control_look->DrawSliderBar(view, frame, frame, base, leftFillColor,
rightFillColor, position, flags, Orientation());
return;
}
BSlider::DrawBar();
}
BRect
VolumeSlider::ThumbFrame() const
{
#if !ROUND_KNOB
BRect rect = BSlider::ThumbFrame();
rect.InsetBy(2, 2);
rect.bottom += 1;
#else
BRect rect(BarFrame());
# if KNOB_EMBEDDED
// Knob embedded in bar frame
rect.InsetBy(0, 1);
# else
// Knob extends outside the bar frame
rect.InsetBy(0, -1);
# endif
rect.InsetBy(rect.Height() / 2, 0);
rect.left = rect.left + rect.Width() * Position() - rect.Height() / 2;
rect.right = rect.left + rect.Height();
#endif
return rect;
}
void
BSlider::DrawBar()
{
BRect frame = BarFrame();
BView *view = OffscreenView();
if (be_control_look != NULL) {
uint32 flags = be_control_look->Flags(this);
rgb_color base = ui_color(B_PANEL_BACKGROUND_COLOR);
rgb_color rightFillColor = fBarColor;
rgb_color leftFillColor = fUseFillColor ? fFillColor : fBarColor;
be_control_look->DrawSliderBar(view, frame, frame, base, leftFillColor,
rightFillColor, Position(), flags, fOrientation);
return;
}
rgb_color no_tint = ui_color(B_PANEL_BACKGROUND_COLOR);
rgb_color lightenmax;
rgb_color darken1;
rgb_color darken2;
rgb_color darkenmax;
rgb_color barColor;
rgb_color fillColor;
if (IsEnabled()) {
lightenmax = tint_color(no_tint, B_LIGHTEN_MAX_TINT);
darken1 = tint_color(no_tint, B_DARKEN_1_TINT);
darken2 = tint_color(no_tint, B_DARKEN_2_TINT);
darkenmax = tint_color(no_tint, B_DARKEN_MAX_TINT);
barColor = fBarColor;
fillColor = fFillColor;
} else {
lightenmax = tint_color(no_tint, B_LIGHTEN_MAX_TINT);
darken1 = no_tint;
darken2 = tint_color(no_tint, B_DARKEN_1_TINT);
darkenmax = tint_color(no_tint, B_DARKEN_3_TINT);
barColor.red = (fBarColor.red + no_tint.red) / 2;
barColor.green = (fBarColor.green + no_tint.green) / 2;
barColor.blue = (fBarColor.blue + no_tint.blue) / 2;
barColor.alpha = 255;
fillColor.red = (fFillColor.red + no_tint.red) / 2;
fillColor.green = (fFillColor.green + no_tint.green) / 2;
fillColor.blue = (fFillColor.blue + no_tint.blue) / 2;
fillColor.alpha = 255;
}
// exclude the block thumb from the bar filling
BRect lowerFrame = frame.InsetByCopy(1, 1);
lowerFrame.top++;
lowerFrame.left++;
BRect upperFrame = lowerFrame;
BRect thumbFrame;
if (Style() == B_BLOCK_THUMB) {
thumbFrame = ThumbFrame();
if (fOrientation == B_HORIZONTAL) {
lowerFrame.right = thumbFrame.left;
upperFrame.left = thumbFrame.right;
} else {
lowerFrame.top = thumbFrame.bottom;
upperFrame.bottom = thumbFrame.top;
}
} else if (fUseFillColor) {
if (fOrientation == B_HORIZONTAL) {
lowerFrame.right = floor(lowerFrame.left - 1 + Position()
* (lowerFrame.Width() + 1));
upperFrame.left = lowerFrame.right;
} else {
lowerFrame.top = floor(lowerFrame.bottom + 1 - Position()
* (lowerFrame.Height() + 1));
upperFrame.bottom = lowerFrame.top;
}
}
view->SetHighColor(barColor);
view->FillRect(upperFrame);
if (Style() == B_BLOCK_THUMB || fUseFillColor) {
if (fUseFillColor)
view->SetHighColor(fillColor);
view->FillRect(lowerFrame);
}
if (Style() == B_BLOCK_THUMB) {
// We don't want to stroke the lines over the thumb
PushState();
BRegion region;
GetClippingRegion(®ion);
region.Exclude(thumbFrame);
ConstrainClippingRegion(®ion);
}
view->SetHighColor(darken1);
view->StrokeLine(BPoint(frame.left, frame.top),
BPoint(frame.left + 1.0f, frame.top));
view->StrokeLine(BPoint(frame.left, frame.bottom),
BPoint(frame.left + 1.0f, frame.bottom));
view->StrokeLine(BPoint(frame.right - 1.0f, frame.top),
BPoint(frame.right, frame.top));
view->SetHighColor(darken2);
view->StrokeLine(BPoint(frame.left + 1.0f, frame.top),
BPoint(frame.right - 1.0f, frame.top));
view->StrokeLine(BPoint(frame.left, frame.bottom - 1.0f),
BPoint(frame.left, frame.top + 1.0f));
view->SetHighColor(lightenmax);
view->StrokeLine(BPoint(frame.left + 1.0f, frame.bottom),
BPoint(frame.right, frame.bottom));
view->StrokeLine(BPoint(frame.right, frame.bottom - 1.0f),
BPoint(frame.right, frame.top + 1.0f));
frame.InsetBy(1.0f, 1.0f);
view->SetHighColor(darkenmax);
view->StrokeLine(BPoint(frame.left, frame.bottom),
BPoint(frame.left, frame.top));
view->StrokeLine(BPoint(frame.left + 1.0f, frame.top),
BPoint(frame.right, frame.top));
if (Style() == B_BLOCK_THUMB)
PopState();
}
void
BSlider::_DrawBlockThumb()
{
BRect frame = ThumbFrame();
BView *view = OffscreenView();
if (be_control_look != NULL) {
rgb_color base = ui_color(B_PANEL_BACKGROUND_COLOR);
uint32 flags = be_control_look->Flags(this);
be_control_look->DrawSliderThumb(view, frame, frame, base, flags,
fOrientation);
return;
}
rgb_color no_tint = ui_color(B_PANEL_BACKGROUND_COLOR);
rgb_color lighten2;
rgb_color lighten1;
rgb_color darken2;
rgb_color darken3;
rgb_color darkenmax;
if (IsEnabled()) {
lighten2 = tint_color(no_tint, B_LIGHTEN_2_TINT);
lighten1 = no_tint;
darken2 = tint_color(no_tint, B_DARKEN_2_TINT);
darken3 = tint_color(no_tint, B_DARKEN_3_TINT);
darkenmax = tint_color(no_tint, B_DARKEN_MAX_TINT);
} else {
lighten2 = tint_color(no_tint, B_LIGHTEN_2_TINT);
lighten1 = tint_color(no_tint, B_LIGHTEN_1_TINT);
darken2 = tint_color(no_tint, (B_NO_TINT + B_DARKEN_1_TINT) / 2.0);
darken3 = tint_color(no_tint, B_DARKEN_1_TINT);
darkenmax = tint_color(no_tint, B_DARKEN_3_TINT);
}
// blank background for shadow
// ToDo: this also draws over the hash marks (though it's not *that* noticeable)
view->SetHighColor(no_tint);
view->StrokeLine(BPoint(frame.left, frame.top),
BPoint(frame.left, frame.top));
BRect barFrame = BarFrame();
if (barFrame.right >= frame.right) {
// leave out barFrame from shadow background clearing
view->StrokeLine(BPoint(frame.right, frame.top),
BPoint(frame.right, barFrame.top - 1.0f));
view->StrokeLine(BPoint(frame.right, barFrame.bottom + 1.0f),
BPoint(frame.right, frame.bottom));
} else {
view->StrokeLine(BPoint(frame.right, frame.top),
BPoint(frame.right, frame.bottom));
}
view->StrokeLine(BPoint(frame.left, frame.bottom),
BPoint(frame.right - 1.0f, frame.bottom));
view->StrokeLine(BPoint(frame.left, frame.bottom - 1.0f),
BPoint(frame.left, frame.bottom - 1.0f));
view->StrokeLine(BPoint(frame.right - 1.0f, frame.top),
BPoint(frame.right - 1.0f, frame.top));
// Outline (top, left)
view->SetHighColor(darken3);
view->StrokeLine(BPoint(frame.left, frame.bottom - 2.0f),
BPoint(frame.left, frame.top + 1.0f));
view->StrokeLine(BPoint(frame.left + 1.0f, frame.top),
BPoint(frame.right - 2.0f, frame.top));
// Shadow
view->SetHighColor(0, 0, 0, IsEnabled() ? 100 : 50);
view->SetDrawingMode(B_OP_ALPHA);
view->StrokeLine(BPoint(frame.right, frame.top + 2.0f),
BPoint(frame.right, frame.bottom - 1.0f));
view->StrokeLine(BPoint(frame.left + 2.0f, frame.bottom),
BPoint(frame.right - 1.0f, frame.bottom));
view->SetDrawingMode(B_OP_COPY);
view->SetHighColor(darken3);
view->StrokeLine(BPoint(frame.right - 1.0f, frame.bottom - 1.0f),
BPoint(frame.right - 1.0f, frame.bottom - 1.0f));
// First bevel
frame.InsetBy(1.0f, 1.0f);
view->SetHighColor(darkenmax);
view->StrokeLine(BPoint(frame.left, frame.bottom),
BPoint(frame.right - 1.0f, frame.bottom));
view->StrokeLine(BPoint(frame.right, frame.bottom - 1.0f),
BPoint(frame.right, frame.top));
view->SetHighColor(lighten2);
view->StrokeLine(BPoint(frame.left, frame.top),
BPoint(frame.left, frame.bottom - 1.0f));
view->StrokeLine(BPoint(frame.left + 1.0f, frame.top),
BPoint(frame.right - 1.0f, frame.top));
frame.InsetBy(1.0f, 1.0f);
view->FillRect(BRect(frame.left, frame.top, frame.right - 1.0f, frame.bottom - 1.0f));
// Second bevel and center dots
view->SetHighColor(darken2);
view->StrokeLine(BPoint(frame.left, frame.bottom),
BPoint(frame.right, frame.bottom));
view->StrokeLine(BPoint(frame.right, frame.bottom - 1.0f),
BPoint(frame.right, frame.top));
if (Orientation() == B_HORIZONTAL) {
view->StrokeLine(BPoint(frame.left + 6.0f, frame.top + 2.0f),
BPoint(frame.left + 6.0f, frame.top + 2.0f));
view->StrokeLine(BPoint(frame.left + 6.0f, frame.top + 4.0f),
BPoint(frame.left + 6.0f, frame.top + 4.0f));
view->StrokeLine(BPoint(frame.left + 6.0f, frame.top + 6.0f),
BPoint(frame.left + 6.0f, frame.top + 6.0f));
} else {
view->StrokeLine(BPoint(frame.left + 2.0f, frame.top + 6.0f),
BPoint(frame.left + 2.0f, frame.top + 6.0f));
view->StrokeLine(BPoint(frame.left + 4.0f, frame.top + 6.0f),
BPoint(frame.left + 4.0f, frame.top + 6.0f));
view->StrokeLine(BPoint(frame.left + 6.0f, frame.top + 6.0f),
BPoint(frame.left + 6.0f, frame.top + 6.0f));
}
frame.InsetBy(1.0f, 1.0f);
// Third bevel
view->SetHighColor(lighten1);
view->StrokeLine(BPoint(frame.left, frame.bottom),
BPoint(frame.right, frame.bottom));
view->StrokeLine(BPoint(frame.right, frame.bottom - 1.0f),
BPoint(frame.right, frame.top));
}
void
BSlider::SetBarColor(rgb_color barColor)
{
fBarColor = barColor;
Invalidate(BarFrame());
}
