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
FontSelectionView::UpdateFontsMenu()
{
int32 numFamilies = count_font_families();
fFontsMenu->RemoveItems(0, fFontsMenu->CountItems(), true);
BFont font;
fFontsMenu->GetFont(&font);
font_family currentFamily;
font_style currentStyle;
fCurrentFont.GetFamilyAndStyle(¤tFamily, ¤tStyle);
for (int32 i = 0; i < numFamilies; i++) {
font_family family;
uint32 flags;
if (get_font_family(i, &family, &flags) != B_OK)
continue;
// if we're setting the fixed font, we only want to show fixed fonts
if (!strcmp(Name(), "fixed") && (flags & B_IS_FIXED) == 0)
continue;
float width = font.StringWidth(family);
if (width > fMaxFontNameWidth)
fMaxFontNameWidth = width;
BMenu* stylesMenu = new BMenu(family);
stylesMenu->SetRadioMode(true);
stylesMenu->SetFont(&font);
BMessage* message = new BMessage(kMsgSetFamily);
message->AddString("family", family);
message->AddString("name", Name());
BMenuItem* familyItem = new BMenuItem(stylesMenu, message);
fFontsMenu->AddItem(familyItem);
int32 numStyles = count_font_styles(family);
for (int32 j = 0; j < numStyles; j++) {
font_style style;
if (get_font_style(family, j, &style, &flags) != B_OK)
continue;
message = new BMessage(kMsgSetStyle);
message->AddString("family", (char*)family);
message->AddString("style", (char*)style);
message->AddString("name", Name());
BMenuItem *item = new BMenuItem(style, message);
if (!strcmp(style, currentStyle)
&& !strcmp(family, currentFamily)) {
item->SetMarked(true);
familyItem->SetMarked(true);
}
stylesMenu->AddItem(item);
}
}
}
void
ExpressionTextView::SetValue(BString value)
{
// save the value
fCurrentValue = value;
// calculate the width of the string
BFont font;
uint32 mode = B_FONT_ALL;
GetFontAndColor(&font, &mode);
float stringWidth = font.StringWidth(value);
// make the string shorter if it does not fit in the view
float viewWidth = Frame().Width();
if (value.CountChars() > 3 && stringWidth > viewWidth) {
// get the position of the first digit
int32 firstDigit = 0;
if (value[0] == '-')
firstDigit++;
// calculate the value of the exponent
int32 exponent = 0;
int32 offset = value.FindFirst('.');
if (offset == B_ERROR) {
exponent = value.CountChars() - 1 - firstDigit;
value.Insert('.', 1, firstDigit + 1);
} else {
if (offset == firstDigit + 1) {
// if the value is 0.01 or larger then scientific notation
// won't shorten the string
if (value[firstDigit] != '0' || value[firstDigit + 2] != '0'
|| value[firstDigit + 3] != '0') {
exponent = 0;
} else {
// remove the period
value.Remove(offset, 1);
// check for negative exponent value
exponent = 0;
while (value[firstDigit] == '0') {
value.Remove(firstDigit, 1);
exponent--;
}
// add the period
value.Insert('.', 1, firstDigit + 1);
}
} else {
// if the period + 1 digit fits in the view scientific notation
// won't shorten the string
BString temp = value;
temp.Truncate(offset + 2);
stringWidth = font.StringWidth(temp);
if (stringWidth < viewWidth)
exponent = 0;
else {
// move the period
value.Remove(offset, 1);
value.Insert('.', 1, firstDigit + 1);
exponent = offset - (firstDigit + 1);
}
}
}
// add the exponent
offset = value.CountChars() - 1;
if (exponent != 0)
value << "E" << exponent;
// reduce the number of digits until the string fits or can not be
// made any shorter
stringWidth = font.StringWidth(value);
char lastRemovedDigit = '0';
while (offset > firstDigit && stringWidth > viewWidth) {
if (value[offset] != '.')
lastRemovedDigit = value[offset];
value.Remove(offset--, 1);
stringWidth = font.StringWidth(value);
}
// there is no need to keep the period if no digits follow
if (value[offset] == '.') {
value.Remove(offset, 1);
offset--;
}
// take care of proper rounding of the result
int digit = (int)lastRemovedDigit - '0'; // ascii to int
if (digit >= 5) {
for (; offset >= firstDigit; offset--) {
if (value[offset] == '.')
continue;
digit = (int)(value[offset]) - '0' + 1; // ascii to int + 1
if (digit != 10)
break;
value.Remove(offset, 1);
}
if (digit == 10) {
// carry over, shift the result
if (value[firstDigit+1] == '.') {
value[firstDigit+1] = '0';
value[firstDigit] = '.';
}
value.Insert('1', 1, firstDigit);
// remove the exponent value and the last digit
offset = value.FindFirst('E');
if (offset == B_ERROR)
offset = value.CountChars();
value.Truncate(--offset);
offset--; // offset now points to the last digit
// increase the exponent and add it back to the string
exponent++;
value << 'E' << exponent;
} else {
// increase the current digit value with one
value[offset] = char(digit + 48);
}
}
// remove trailing zeros
while (value[offset] == '0')
value.Remove(offset--, 1);
// there is no need to keep the period if no digits follow
if (value[offset] == '.')
value.Remove(offset, 1);
}
// set the new value
SetExpression(value);
}
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));
}
}
}
//! Redraw the button depending on whether it's up or down
void
CPUButton::Draw(BRect rect)
{
bool value = (bool)Value();
SetHighColor(value ? fOnColor : fOffColor);
if (!fReplicant) {
SetLowColor(Parent()->LowColor());
FillRect(Bounds(), B_SOLID_LOW);
}
BRect bounds = Bounds();
if (fReplicant && !fReplicantInDeskbar) {
bounds.bottom -= 4;
bounds.right -= 4;
} else if (!fReplicant) {
bounds.bottom -= 7;
bounds.right -= 7;
}
BRect color_rect(bounds);
color_rect.InsetBy(2, 2);
if (value) {
color_rect.bottom -= 1;
color_rect.right -= 1;
}
FillRect(bounds);
if (value)
SetHighColor(80, 80, 80);
else
SetHighColor(255, 255, 255);
BPoint start(0, 0);
BPoint end(bounds.right, 0);
StrokeLine(start, end);
end.Set(0, bounds.bottom);
StrokeLine(start, end);
if (value)
SetHighColor(32, 32, 32);
else
SetHighColor(216, 216, 216);
start.Set(1, 1);
end.Set(bounds.right - 1, 1);
StrokeLine(start, end);
end.Set(1, bounds.bottom - 1);
StrokeLine(start, end);
if (value)
SetHighColor(216, 216, 216);
else
SetHighColor(80, 80, 80);
start.Set(bounds.left + 1, bounds.bottom - 1);
end.Set(bounds.right - 1, bounds.bottom - 1);
StrokeLine(start, end);
start.Set(bounds.right - 1, bounds.top + 1);
StrokeLine(start, end);
if (value)
SetHighColor(255, 255, 255);
else
SetHighColor(32, 32, 32);
start.Set(bounds.left, bounds.bottom);
end.Set(bounds.right, bounds.bottom);
StrokeLine(start, end);
start.Set(bounds.right, bounds.top);
StrokeLine(start, end);
if (value) {
SetHighColor(0, 0, 0);
start.Set(bounds.left + 2, bounds.bottom - 2);
end.Set(bounds.right - 2, bounds.bottom - 2);
StrokeLine(start, end);
start.Set(bounds.right - 2, bounds.top + 2);
StrokeLine(start, end);
}
// Try to keep the text centered
BFont font;
GetFont(&font);
int label_width = (int)font.StringWidth(Label());
int rect_width = bounds.IntegerWidth() - 1;
int rect_height = bounds.IntegerHeight();
font_height fh;
font.GetHeight(&fh);
int label_height = (int)fh.ascent;
int x_pos = (int)(((double)(rect_width - label_width) / 2.0) + 0.5);
int y_pos = (rect_height - label_height) / 2 + label_height;
MovePenTo(x_pos, y_pos);
SetHighColor(0, 0, 0);
SetDrawingMode(B_OP_OVER);
DrawString(Label());
}
