// Adjusts lightness by 1/255 units.
COLORREF AdjustLightness2(COLORREF c, float units) {
float lightness = GetLightness(c);
units = limitValue(units, -lightness, 255.0f - lightness);
if (0.0f == lightness)
return RGB(BYTE(units + 0.5f), BYTE(units + 0.5f), BYTE(units + 0.5f));
return AdjustLightness(c, 1.0f + units / lightness);
}
static void WinUtilTest()
{
ScopedCom comScope;
{
char *string = "abcde";
size_t stringSize = 5, len;
ScopedComPtr<IStream> stream(CreateStreamFromData(string, stringSize));
assert(stream);
char *data = (char *)GetDataFromStream(stream, &len);
assert(data && stringSize == len && str::Eq(data, string));
free(data);
}
{
WCHAR *string = L"abcde";
size_t stringSize = 10, len;
ScopedComPtr<IStream> stream(CreateStreamFromData(string, stringSize));
assert(stream);
WCHAR *data = (WCHAR *)GetDataFromStream(stream, &len);
assert(data && stringSize == len && str::Eq(data, string));
free(data);
}
{
RectI oneScreen = GetFullscreenRect(NULL);
RectI allScreens = GetVirtualScreenRect();
assert(allScreens.Intersect(oneScreen) == oneScreen);
}
{
COLORREF c = AdjustLightness(RGB(255, 0, 0), 1.0f);
assert(c == RGB(255, 0, 0));
c = AdjustLightness(RGB(255, 0, 0), 2.0f);
assert(c == RGB(255, 255, 255));
c = AdjustLightness(RGB(255, 0, 0), 0.25f);
assert(c == RGB(64, 0, 0));
c = AdjustLightness(RGB(226, 196, 226), 95 / 255.0f);
assert(c == RGB(105, 52, 105));
c = AdjustLightness(RGB(255, 255, 255), 0.5f);
assert(c == RGB(128, 128, 128));
}
}
// Paints the tabs that intersect the window's update rectangle.
void Paint(HDC hdc, RECT &rc) {
IntersectClipRect(hdc, rc.left, rc.top, rc.right, rc.bottom);
// paint the background
bool isTranslucentMode = inTitlebar && dwm::IsCompositionEnabled();
if (isTranslucentMode)
PaintParentBackground(hwnd, hdc);
else {
HBRUSH brush = CreateSolidBrush(color.bar);
FillRect(hdc, &rc, brush);
DeleteObject(brush);
}
// TODO: GDI+ doesn't seem to cope well with SetWorldTransform
XFORM ctm = { 1.0, 0, 0, 1.0, 0, 0 };
SetWorldTransform(hdc, &ctm);
Graphics graphics(hdc);
graphics.SetCompositingMode(CompositingModeSourceCopy);
graphics.SetCompositingQuality(CompositingQualityHighQuality);
graphics.SetSmoothingMode(SmoothingModeHighQuality);
graphics.SetTextRenderingHint(TextRenderingHintClearTypeGridFit);
graphics.SetPageUnit(UnitPixel);
GraphicsPath shapes(data->Points, data->Types, data->Count);
GraphicsPath shape;
GraphicsPathIterator iterator(&shapes);
SolidBrush br(Color(0, 0, 0));
Pen pen(&br, 2.0f);
Font f(hdc, GetDefaultGuiFont());
// TODO: adjust these constant values for DPI?
RectF layout((REAL)DpiScaleX(hwnd,3), 1.0f, REAL(width - DpiScaleX(hwnd,20)), (REAL)height);
StringFormat sf(StringFormat::GenericDefault());
sf.SetFormatFlags(StringFormatFlagsNoWrap);
sf.SetLineAlignment(StringAlignmentCenter);
sf.SetTrimming(StringTrimmingEllipsisCharacter);
REAL yPosTab = inTitlebar ? 0.0f : REAL(ClientRect(hwnd).dy - height - 1);
for (int i = 0; i < Count(); i++) {
graphics.ResetTransform();
graphics.TranslateTransform(1.f + (REAL)(width + 1) * i - (REAL)rc.left, yPosTab - (REAL)rc.top);
if (!graphics.IsVisible(0, 0, width + 1, height + 1))
continue;
// in firefox style we only paint current and highlighed tabs
// all other tabs only show
bool onlyText = g_FirefoxStyle && !((current == i) || (highlighted == i));
if (onlyText) {
#if 0
// we need to first paint the background with the same color as caption,
// otherwise the text looks funny (because is transparent?)
// TODO: what is the damn bg color of caption? bar is too light, outline is too dark
Color bgColTmp;
bgColTmp.SetFromCOLORREF(color.bar);
{
SolidBrush bgBr(bgColTmp);
graphics.FillRectangle(&bgBr, layout);
}
bgColTmp.SetFromCOLORREF(color.outline);
{
SolidBrush bgBr(bgColTmp);
graphics.FillRectangle(&bgBr, layout);
}
#endif
// TODO: this is a hack. If I use no background and cleartype, the
// text looks funny (is bold).
// CompositingModeSourceCopy doesn't work with clear type
// another option is to draw background before drawing text, but
// I can't figure out what is the actual color of caption
graphics.SetTextRenderingHint(TextRenderingHintAntiAliasGridFit);
graphics.SetCompositingMode(CompositingModeSourceCopy);
//graphics.SetCompositingMode(CompositingModeSourceOver);
br.SetColor(ToColor(color.text));
graphics.DrawString(text.At(i), -1, &f, layout, &sf, &br);
graphics.SetTextRenderingHint(TextRenderingHintClearTypeGridFit);
continue;
}
COLORREF bgCol = color.background;;
if (current == i) {
bgCol = color.current;
} else if (highlighted == i) {
bgCol = color.highlight;
}
// ensure contrast between text and background color
// TODO: adjust threshold (and try adjusting both current/background tabs)
COLORREF textCol = color.text;
float bgLight = GetLightness(bgCol), textLight = GetLightness(textCol);
if (textLight < bgLight ? bgLight < 0x70 : bgLight > 0x90)
textCol = textLight ? AdjustLightness(textCol, 255.0f / textLight - 1.0f) : RGB(255, 255, 255);
if (fabs(textLight - bgLight) < 0x40)
textCol = bgLight < 0x80 ? RGB(255, 255, 255) : RGB(0, 0, 0);
// paint tab's body
graphics.SetCompositingMode(CompositingModeSourceCopy);
iterator.NextMarker(&shape);
br.SetColor(ToColor(bgCol));
graphics.FillPath(&br, &shape);
// draw tab's text
graphics.SetCompositingMode(CompositingModeSourceOver);
br.SetColor(ToColor(textCol));
graphics.DrawString(text.At(i), -1, &f, layout, &sf, &br);
// paint "x"'s circle
iterator.NextMarker(&shape);
if (xClicked == i || xHighlighted == i) {
br.SetColor(ToColor(i == xClicked ? color.x_click : color.x_highlight));
graphics.FillPath(&br, &shape);
}
// paint "x"
iterator.NextMarker(&shape);
if (xClicked == i || xHighlighted == i)
pen.SetColor(ToColor(color.x_line));
else
pen.SetColor(ToColor(color.outline));
graphics.DrawPath(&pen, &shape);
iterator.Rewind();
}
}
