void
ActivityView::_Refresh()
{
bigtime_t lastTimeout = system_time() - RefreshInterval();
BMessenger target(this);
while (true) {
status_t status = acquire_sem_etc(fRefreshSem, 1, B_ABSOLUTE_TIMEOUT,
lastTimeout + RefreshInterval());
if (status == B_OK || status == B_BAD_SEM_ID)
break;
if (status == B_INTERRUPTED)
continue;
SystemInfo info(fSystemInfoHandler);
lastTimeout += RefreshInterval();
fSourcesLock.Lock();
for (uint32 i = fSources.CountItems(); i-- > 0;) {
DataSource* source = fSources.ItemAt(i);
DataHistory* values = fValues.ItemAt(i);
int64 value = source->NextValue(info);
values->AddValue(info.Time(), value);
}
fSourcesLock.Unlock();
target.SendMessage(B_INVALIDATE);
}
}
status_t
ActivityView::AddDataSource(const DataSource* source, const BMessage* state)
{
if (source == NULL)
return B_BAD_VALUE;
BAutolock _(fSourcesLock);
// Search for the correct insert spot to maintain the order of the sources
int32 insert = DataSource::IndexOf(source);
for (int32 i = 0; i < fSources.CountItems() && i < insert; i++) {
DataSource* before = fSources.ItemAt(i);
if (DataSource::IndexOf(before) > insert) {
insert = i;
break;
}
}
if (insert > fSources.CountItems())
insert = fSources.CountItems();
// Generate DataHistory and ViewHistory objects for the source
// (one might need one history per CPU)
uint32 count = 1;
if (source->PerCPU()) {
SystemInfo info;
count = info.CPUCount();
}
for (uint32 i = 0; i < count; i++) {
DataHistory* values = new(std::nothrow) DataHistory(10 * 60000000LL,
RefreshInterval());
ListAddDeleter<DataHistory> valuesDeleter(fValues, values, insert);
ViewHistory* viewValues = new(std::nothrow) ViewHistory;
ListAddDeleter<ViewHistory> viewValuesDeleter(fViewValues, viewValues,
insert);
if (valuesDeleter.Failed() || viewValuesDeleter.Failed())
return B_NO_MEMORY;
values->SetScale(_ScaleFor(source->ScaleType()));
DataSource* copy;
if (source->PerCPU())
copy = source->CopyForCPU(i);
else
copy = source->Copy();
ListAddDeleter<DataSource> sourceDeleter(fSources, copy, insert);
if (sourceDeleter.Failed())
return B_NO_MEMORY;
BString colorName = source->Name();
colorName << " color";
if (state != NULL) {
const rgb_color* color = NULL;
ssize_t colorLength;
if (state->FindData(colorName.String(), B_RGB_COLOR_TYPE, i,
(const void**)&color, &colorLength) == B_OK
&& colorLength == sizeof(rgb_color))
copy->SetColor(*color);
}
valuesDeleter.Detach();
viewValuesDeleter.Detach();
sourceDeleter.Detach();
insert++;
}
#ifdef __HAIKU__
InvalidateLayout();
#endif
return B_OK;
}
void
ActivityView::Draw(BRect updateRect)
{
bool drawBackground = true;
if (Parent() && (Parent()->Flags() & B_DRAW_ON_CHILDREN) != 0)
drawBackground = false;
_DrawHistory(drawBackground);
if (!fShowLegend)
return;
// draw legend
BRect legendFrame = _LegendFrame();
if (LowUIColor() == B_NO_COLOR)
SetLowColor(fLegendBackgroundColor);
if (drawBackground) {
BRect backgroundFrame(legendFrame);
backgroundFrame.bottom += kDraggerSize;
FillRect(backgroundFrame, B_SOLID_LOW);
}
BAutolock _(fSourcesLock);
font_height fontHeight;
GetFontHeight(&fontHeight);
for (int32 i = 0; i < fSources.CountItems(); i++) {
DataSource* source = fSources.ItemAt(i);
DataHistory* values = fValues.ItemAt(i);
BRect frame = _LegendFrameAt(legendFrame, i);
// draw color box
BRect colorBox = _LegendColorFrameAt(legendFrame, i);
BRect rect = colorBox;
uint32 flags = BControlLook::B_BLEND_FRAME;
be_control_look->DrawTextControlBorder(this, rect,
rect, fLegendBackgroundColor, flags);
SetHighColor(source->Color());
FillRect(rect);
// show current value and label
float y = frame.top + ceilf(fontHeight.ascent);
int64 value = values->ValueAt(values->End());
BString text;
source->Print(text, value);
float width = StringWidth(text.String());
BString label = source->Label();
float possibleLabelWidth = frame.right - colorBox.right - 12 - width;
// TODO: TruncateString() is broken... remove + 5 when fixed!
if (ceilf(StringWidth(label.String()) + 5) > possibleLabelWidth)
label = source->ShortLabel();
TruncateString(&label, B_TRUNCATE_MIDDLE, possibleLabelWidth);
if (drawBackground)
SetHighColor(ui_color(B_PANEL_TEXT_COLOR));
if (be_control_look == NULL) {
DrawString(label.String(), BPoint(6 + colorBox.right, y));
DrawString(text.String(), BPoint(frame.right - width, y));
} else {
be_control_look->DrawLabel(this, label.String(),
Parent()->ViewColor(), 0, BPoint(6 + colorBox.right, y));
be_control_look->DrawLabel(this, text.String(),
Parent()->ViewColor(), 0, BPoint(frame.right - width, y));
}
}
}
void
ActivityView::Draw(BRect updateRect)
{
bool drawBackground = true;
if (Parent() && (Parent()->Flags() & B_DRAW_ON_CHILDREN) != 0)
drawBackground = false;
_DrawHistory(drawBackground);
if (!fShowLegend)
return;
// draw legend
BRect legendFrame = _LegendFrame();
SetLowColor(fLegendBackgroundColor);
if (drawBackground) {
BRect backgroundFrame(legendFrame);
backgroundFrame.bottom += kDraggerSize;
FillRect(backgroundFrame, B_SOLID_LOW);
}
BAutolock _(fSourcesLock);
font_height fontHeight;
GetFontHeight(&fontHeight);
for (int32 i = 0; i < fSources.CountItems(); i++) {
DataSource* source = fSources.ItemAt(i);
DataHistory* values = fValues.ItemAt(i);
BRect frame = _LegendFrameAt(legendFrame, i);
// draw color box
BRect colorBox = _LegendColorFrameAt(legendFrame, i);
BRect rect = colorBox;
uint32 flags = BControlLook::B_BLEND_FRAME;
be_control_look->DrawTextControlBorder(this, rect,
rect, fLegendBackgroundColor, flags);
SetHighColor(source->Color());
FillRect(rect);
// show current value and label
float y = frame.top + ceilf(fontHeight.ascent);
int64 value = values->ValueAt(values->End());
BString text;
source->Print(text, value);
float width = StringWidth(text.String());
BString label = source->Label();
float possibleLabelWidth = frame.right - colorBox.right - 12 - width;
// TODO: TruncateString() is broken... remove + 5 when fixed!
if (ceilf(StringWidth(label.String()) + 5) > possibleLabelWidth)
label = source->ShortLabel();
TruncateString(&label, B_TRUNCATE_MIDDLE, possibleLabelWidth);
if (drawBackground)
SetHighColor(ui_color(B_CONTROL_TEXT_COLOR));
else {
rgb_color c = Parent()->ViewColor();
rgb_color textColor = c.red + c.green * 1.5f + c.blue * 0.50f
>= 300 ? kBlack : kWhite;
int32 mask;
bool tmpOutline = false;
bool outline = fCachedOutline;
int8 indice = 0;
if (fCachedWorkspace != current_workspace()) {
while (fBackgroundInfo.FindInt32("be:bgndimginfoworkspaces",
indice, &mask) == B_OK
&& fBackgroundInfo.FindBool("be:bgndimginfoerasetext",
indice, &tmpOutline) == B_OK) {
if (((1 << current_workspace()) & mask) != 0) {
outline = tmpOutline;
fCachedWorkspace = current_workspace();
fCachedOutline = outline;
break;
}
indice++;
}
}
if (outline) {
SetDrawingMode(B_OP_ALPHA);
SetBlendingMode(B_CONSTANT_ALPHA, B_ALPHA_OVERLAY);
BFont font;
GetFont(&font);
if (textColor == kBlack) {
// Black text with white halo/glow
rgb_color glowColor = kWhite;
font.SetFalseBoldWidth(2.0);
SetFont(&font, B_FONT_FALSE_BOLD_WIDTH);
glowColor.alpha = 30;
SetHighColor(glowColor);
DrawString(label.String(), BPoint(6 + colorBox.right, y));
DrawString(text.String(), BPoint(frame.right - width, y));
font.SetFalseBoldWidth(1.0);
SetFont(&font, B_FONT_FALSE_BOLD_WIDTH);
glowColor.alpha = 65;
SetHighColor(glowColor);
DrawString(label.String(), BPoint(6 + colorBox.right, y));
DrawString(text.String(), BPoint(frame.right - width, y));
font.SetFalseBoldWidth(0.0);
SetFont(&font, B_FONT_FALSE_BOLD_WIDTH);
} else {
// white text with black outline
rgb_color outlineColor = kBlack;
font.SetFalseBoldWidth(1.0);
SetFont(&font, B_FONT_FALSE_BOLD_WIDTH);
outlineColor.alpha = 30;
SetHighColor(outlineColor);
DrawString(label.String(), BPoint(6 + colorBox.right, y));
DrawString(text.String(), BPoint(frame.right - width, y));
font.SetFalseBoldWidth(0.0);
SetFont(&font, B_FONT_FALSE_BOLD_WIDTH);
outlineColor.alpha = 200;
SetHighColor(outlineColor);
DrawString(label.String(), BPoint(6 + colorBox.right + 1,
y + 1));
DrawString(text.String(), BPoint(frame.right - width + 1,
y + 1));
}
}
SetDrawingMode(B_OP_OVER);
SetHighColor(textColor);
}
DrawString(label.String(), BPoint(6 + colorBox.right, y));
DrawString(text.String(), BPoint(frame.right - width, y));
}
}
