float
PieView::_DrawDirectory(BRect b, FileInfo* info, float parentSpan,
float beginAngle, int colorIdx, int level)
{
if (b.Width() < 2.0 * (kPieCenterSize + level * kPieRingSize
+ kPieOuterMargin + kPieInnerMargin)) {
return 0.0;
}
if (info != NULL && info->color >= 0 && level == 0)
colorIdx = info->color % kBasePieColorCount;
else if (info != NULL)
info->color = colorIdx;
VolumeSnapshot* snapshot = fScanner->Snapshot();
float cx = floorf(b.left + b.Width() / 2.0 + 0.5);
float cy = floorf(b.top + b.Height() / 2.0 + 0.5);
float mySpan;
if (level == 0) {
// Make room for mouse over info.
fMouseOverInfo.clear();
fMouseOverInfo[0] = SegmentList();
// Draw the center circle.
const char* displayName;
if (info == NULL) {
// NULL represents the entire volume. Show used and free space in
// the center circle, with the used segment representing the
// volume's root directory.
off_t volCapacity = snapshot->capacity;
mySpan = 360.0 * (volCapacity - snapshot->freeBytes) / volCapacity;
SetHighColor(kEmptySpcColor);
FillEllipse(BPoint(cx, cy), kPieCenterSize, kPieCenterSize);
SetHighColor(kBasePieColor[0]);
FillArc(BPoint(cx, cy), kPieCenterSize, kPieCenterSize, 0.0,
mySpan);
// Show total volume capacity.
char label[B_PATH_NAME_LENGTH];
size_to_string(volCapacity, label, sizeof(label));
SetHighColor(kPieBGColor);
SetDrawingMode(B_OP_OVER);
DrawString(label, BPoint(cx - StringWidth(label) / 2.0,
cy + fFontHeight + kSmallVMargin));
SetDrawingMode(B_OP_COPY);
displayName = snapshot->name.c_str();
// Record in-use space and free space for use during MouseMoved().
info = snapshot->rootDir;
info->color = colorIdx;
fMouseOverInfo[0].push_back(Segment(0.0, mySpan, info));
if (mySpan < 360.0 - kMinSegmentSpan) {
fMouseOverInfo[0].push_back(Segment(mySpan, 360.0,
snapshot->freeSpace));
}
} else {
// Show a normal directory.
SetHighColor(kBasePieColor[colorIdx]);
FillEllipse(BRect(cx - kPieCenterSize, cy - kPieCenterSize,
cx + kPieCenterSize + 0.5, cy + kPieCenterSize + 0.5));
displayName = info->ref.name;
mySpan = 360.0;
// Record the segment for use during MouseMoved().
fMouseOverInfo[0].push_back(Segment(0.0, mySpan, info));
}
SetPenSize(1.0);
SetHighColor(kOutlineColor);
StrokeEllipse(BPoint(cx, cy), kPieCenterSize + 0.5,
kPieCenterSize + 0.5);
// Show the name of the volume or directory.
BString label(displayName);
BFont font;
GetFont(&font);
font.TruncateString(&label, B_TRUNCATE_END,
2.0 * (kPieCenterSize - kSmallHMargin));
float labelWidth = font.StringWidth(label.String());
SetHighColor(kPieBGColor);
SetDrawingMode(B_OP_OVER);
DrawString(label.String(), BPoint(cx - labelWidth / 2.0, cy));
SetDrawingMode(B_OP_COPY);
beginAngle = 0.0;
} else {
// Draw an exterior segment.
float parentSize;
if (info->parent == NULL)
parentSize = (float)snapshot->capacity;
else
parentSize = (float)info->parent->size;
mySpan = parentSpan * (float)info->size / parentSize;
if (mySpan >= kMinSegmentSpan) {
const float tint = 1.4f - level * 0.08f;
float radius = kPieCenterSize + level * kPieRingSize
- kPieRingSize / 2.0;
// Draw the grey border
SetHighColor(tint_color(kOutlineColor, tint));
SetPenSize(kPieRingSize + 1.5f);
StrokeArc(BPoint(cx, cy), radius, radius,
beginAngle - 0.001f * radius, mySpan + 0.002f * radius);
// Draw the colored area
rgb_color color = tint_color(kBasePieColor[colorIdx], tint);
SetHighColor(color);
SetPenSize(kPieRingSize);
StrokeArc(BPoint(cx, cy), radius, radius, beginAngle, mySpan);
// Record the segment for use during MouseMoved().
if (fMouseOverInfo.find(level) == fMouseOverInfo.end())
fMouseOverInfo[level] = SegmentList();
fMouseOverInfo[level].push_back(
Segment(beginAngle, beginAngle + mySpan, info));
}
}
// Draw children.
vector<FileInfo*>::iterator i = info->children.begin();
while (i != info->children.end()) {
float childSpan
= _DrawDirectory(b, *i, mySpan, beginAngle, colorIdx, level + 1);
if (childSpan >= kMinSegmentSpan) {
beginAngle += childSpan;
colorIdx = (colorIdx + 1) % kBasePieColorCount;
}
i++;
}
return mySpan;
}
void
BRadioButton::Draw(BRect updateRect)
{
// its size depends on the text height
font_height fontHeight;
GetFontHeight(&fontHeight);
if (be_control_look != NULL) {
rgb_color base = ui_color(B_PANEL_BACKGROUND_COLOR);
uint32 flags = be_control_look->Flags(this);
if (fOutlined)
flags |= BControlLook::B_CLICKED;
BRect knobRect(_KnobFrame(fontHeight));
BRect rect(knobRect);
be_control_look->DrawRadioButton(this, rect, updateRect, base, flags);
BRect labelRect(Bounds());
labelRect.left = knobRect.right
+ be_control_look->DefaultLabelSpacing();
be_control_look->DrawLabel(this, Label(), labelRect, updateRect,
base, flags);
return;
}
float textHeight = ceilf(fontHeight.ascent + fontHeight.descent);
// layout the rect for the dot
BRect rect = _KnobFrame(fontHeight);
BPoint labelPos(rect.right + floorf(textHeight / 2.0),
floorf((rect.top + rect.bottom + textHeight) / 2.0
- fontHeight.descent + 0.5) + 1.0);
// if the focus is changing, just redraw the focus indicator
if (IsFocusChanging()) {
if (IsFocus())
SetHighColor(ui_color(B_KEYBOARD_NAVIGATION_COLOR));
else
SetHighColor(ui_color(B_PANEL_BACKGROUND_COLOR));
BPoint underLine = labelPos;
underLine.y += fontHeight.descent;
StrokeLine(underLine, underLine + BPoint(StringWidth(Label()), 0.0));
return;
}
// colors
rgb_color bg = ui_color(B_PANEL_BACKGROUND_COLOR);
rgb_color lightenmax;
rgb_color lighten1;
rgb_color darken1;
rgb_color darken2;
rgb_color darken3;
rgb_color darkenmax;
rgb_color naviColor = ui_color(B_KEYBOARD_NAVIGATION_COLOR);
rgb_color knob;
rgb_color knobDark;
rgb_color knobLight;
if (IsEnabled()) {
lightenmax = tint_color(bg, B_LIGHTEN_MAX_TINT);
lighten1 = tint_color(bg, B_LIGHTEN_1_TINT);
darken1 = tint_color(bg, B_DARKEN_1_TINT);
darken2 = tint_color(bg, B_DARKEN_2_TINT);
darken3 = tint_color(bg, B_DARKEN_3_TINT);
darkenmax = tint_color(bg, B_DARKEN_MAX_TINT);
knob = naviColor;
knobDark = tint_color(naviColor, B_DARKEN_3_TINT);
knobLight = tint_color(naviColor, 0.15);
} else {
lightenmax = tint_color(bg, B_LIGHTEN_2_TINT);
lighten1 = bg;
darken1 = bg;
darken2 = tint_color(bg, B_DARKEN_1_TINT);
darken3 = tint_color(bg, B_DARKEN_2_TINT);
darkenmax = tint_color(bg, B_DISABLED_LABEL_TINT);
knob = tint_color(naviColor, B_LIGHTEN_2_TINT);
knobDark = tint_color(naviColor, B_LIGHTEN_1_TINT);
knobLight = tint_color(naviColor, (B_LIGHTEN_2_TINT
+ B_LIGHTEN_MAX_TINT) / 2.0);
}
// dot
if (Value() == B_CONTROL_ON) {
// full
SetHighColor(knobDark);
FillEllipse(rect);
SetHighColor(knob);
FillEllipse(BRect(rect.left + 2, rect.top + 2, rect.right - 3,
rect.bottom - 3));
SetHighColor(knobLight);
FillEllipse(BRect(rect.left + 3, rect.top + 3, rect.right - 5,
rect.bottom - 5));
} else {
// empty
SetHighColor(lightenmax);
FillEllipse(rect);
}
rect.InsetBy(-1.0, -1.0);
// outer circle
if (fOutlined) {
// indicating "about to change value"
SetHighColor(darken3);
StrokeEllipse(rect);
} else {
SetHighColor(darken1);
StrokeArc(rect, 45.0, 180.0);
SetHighColor(lightenmax);
StrokeArc(rect, 45.0, -180.0);
}
rect.InsetBy(1, 1);
// inner circle
SetHighColor(darken3);
StrokeArc(rect, 45.0, 180.0);
SetHighColor(bg);
StrokeArc(rect, 45.0, -180.0);
// for faster font rendering, we can restore B_OP_COPY
SetDrawingMode(B_OP_COPY);
// label
SetHighColor(darkenmax);
DrawString(Label(), labelPos);
// underline label if focused
if (IsFocus()) {
SetHighColor(naviColor);
BPoint underLine = labelPos;
underLine.y += fontHeight.descent;
StrokeLine(underLine, underLine + BPoint(StringWidth(Label()), 0.0));
}
}
void
BRadioButton::Draw(BRect updateRect)
{
if (Window() == NULL) return;
BFont font;
GetFont(&font);
font_height fontHeight;
font.GetHeight(&fontHeight);
float sHeight = fontHeight.ascent + fontHeight.descent;
BRect rect = Frame().OffsetToSelf(B_ORIGIN);
rect.InsetBy(5, (rect.Height() - sHeight) / 2);
if (rect.IsValid() == false) return;
if ((IsFocus() || IsFocusChanging()) && IsEnabled() && Label() != NULL) {
BPoint penLocation;
penLocation.Set(rect.left + rect.Height() + 5, rect.Center().y + sHeight / 2 + 1);
SetHighColor((IsFocus() && Window()->IsActivate()) ? ui_color(B_NAVIGATION_BASE_COLOR) : ViewColor());
StrokeLine(penLocation, penLocation + BPoint(font.StringWidth(Label()), 0));
}
if (IsFocusChanging()) return;
rgb_color shineColor = ui_color(B_SHINE_COLOR);
rgb_color shadowColor = ui_color(B_SHADOW_COLOR);
if (!IsEnabled()) {
shineColor.disable(ViewColor());
shadowColor.disable(ViewColor());
}
rect.right = rect.left + rect.Height();
SetHighColor(shineColor.mix_copy(0, 0, 0, 5));
FillEllipse(rect);
SetHighColor(shineColor);
StrokeArc(rect, 225, 180);
SetHighColor(shadowColor);
StrokeArc(rect, 45, 180);
if (Value() == B_CONTROL_ON) {
SetHighColor(shadowColor.mix_copy(255, 255, 255, 50));
BRect r = rect.InsetByCopy(3, 3);
FillEllipse(r);
}
if (Label() != NULL) {
BPoint penLocation;
penLocation.x = rect.right + 5;
penLocation.y = rect.Center().y - sHeight / 2.f;
penLocation.y += fontHeight.ascent + 1;
SetHighColor(IsEnabled() ? ui_color(B_PANEL_TEXT_COLOR) : ui_color(B_SHINE_COLOR).disable(ViewColor()));
SetLowColor(ViewColor());
DrawString(Label(), penLocation);
if (!IsEnabled()) {
SetHighColor(ui_color(B_SHADOW_COLOR).disable(ViewColor()));
DrawString(Label(), penLocation - BPoint(1, 1));
}
}
}