bool
FontCacheEntry::Init(const ServerFont& font)
{
if (fGlyphCache == NULL)
return false;
glyph_rendering renderingType = _RenderTypeFor(font);
// TODO: encoding from font
FT_Encoding charMap = FT_ENCODING_NONE;
bool hinting = font.Hinting();
if (!fEngine.Init(font.Path(), 0, font.Size(), charMap,
renderingType, hinting)) {
fprintf(stderr, "FontCacheEntry::Init() - some error loading font "
"file %s\n", font.Path());
return false;
}
if (fGlyphCache->Init() != B_OK) {
fprintf(stderr, "FontCacheEntry::Init() - failed to allocate "
"GlyphCache table for font file %s\n", font.Path());
return false;
}
return true;
}
void
WorkspacesView::_DrawWorkspace(DrawingEngine* drawingEngine,
BRegion& redraw, int32 index)
{
BRect rect = _WorkspaceAt(index);
Workspace workspace(*Window()->Desktop(), index);
bool active = workspace.IsCurrent();
if (active) {
// draw active frame
rgb_color black = (rgb_color){ 0, 0, 0, 255 };
drawingEngine->StrokeRect(rect, black);
} else if (index == fSelectedWorkspace) {
rgb_color gray = (rgb_color){ 80, 80, 80, 255 };
drawingEngine->StrokeRect(rect, gray);
}
rect.InsetBy(1, 1);
rgb_color color = workspace.Color();
if (!active)
_DarkenColor(color);
// draw windows
BRegion backgroundRegion = redraw;
// TODO: would be nice to get the real update region here
BRect screenFrame = _ScreenFrame(index);
BRegion workspaceRegion(rect);
backgroundRegion.IntersectWith(&workspaceRegion);
drawingEngine->ConstrainClippingRegion(&backgroundRegion);
ServerFont font = fDrawState->Font();
font.SetSize(fWindow->ServerWindow()->App()->PlainFont().Size());
float reducedSize = ceilf(max_c(8.0f,
min_c(Frame().Height(), Frame().Width()) / 15));
if (font.Size() > reducedSize)
font.SetSize(reducedSize);
fDrawState->SetFont(font);
drawingEngine->SetFont(font);
// We draw from top down and cut the window out of the clipping region
// which reduces the flickering
::Window* window;
BPoint leftTop;
while (workspace.GetPreviousWindow(window, leftTop) == B_OK) {
_DrawWindow(drawingEngine, rect, screenFrame, window,
leftTop, backgroundRegion, active);
}
// draw background
drawingEngine->FillRect(rect, color);
drawingEngine->ConstrainClippingRegion(&redraw);
}
void
RemoteMessage::AddFont(const ServerFont& font)
{
Add(font.Direction());
Add((uint8)font.Encoding());
Add(font.Flags());
Add((uint8)font.Spacing());
Add(font.Shear());
Add(font.Rotation());
Add(font.FalseBoldWidth());
Add(font.Size());
Add(font.Face());
Add(font.GetFamilyAndStyle());
}
void
CanvasMessage::AddFont(const ServerFont& font)
{
//TODO:Use TTF/WOFF URL
Add(font.Direction());
Add((uint8)font.Encoding());
Add(font.Flags());
Add((uint8)font.Spacing());
Add(font.Shear());
Add(font.Rotation());
Add(font.FalseBoldWidth());
Add(font.Size());
Add(font.Face());
Add(font.GetFamilyAndStyle());
}
//! sets the font to be already scaled by fScale
void
DrawState::SetFont(const ServerFont& font, uint32 flags)
{
if (flags == B_FONT_ALL) {
fFont = font;
fUnscaledFontSize = font.Size();
fFont.SetSize(fUnscaledFontSize * fCombinedScale);
} else {
// family & style
if ((flags & B_FONT_FAMILY_AND_STYLE) != 0)
fFont.SetFamilyAndStyle(font.GetFamilyAndStyle());
// size
if ((flags & B_FONT_SIZE) != 0) {
fUnscaledFontSize = font.Size();
fFont.SetSize(fUnscaledFontSize * fCombinedScale);
}
// shear
if ((flags & B_FONT_SHEAR) != 0)
fFont.SetShear(font.Shear());
// rotation
if ((flags & B_FONT_ROTATION) != 0)
fFont.SetRotation(font.Rotation());
// spacing
if ((flags & B_FONT_SPACING) != 0)
fFont.SetSpacing(font.Spacing());
// encoding
if ((flags & B_FONT_ENCODING) != 0)
fFont.SetEncoding(font.Encoding());
// face
if ((flags & B_FONT_FACE) != 0)
fFont.SetFace(font.Face());
// flags
if ((flags & B_FONT_FLAGS) != 0)
fFont.SetFlags(font.Flags());
}
}
/*static*/ void
FontCacheEntry::GenerateSignature(char* signature, size_t signatureSize,
const ServerFont& font)
{
glyph_rendering renderingType = _RenderTypeFor(font);
// TODO: read more of these from the font
FT_Encoding charMap = FT_ENCODING_NONE;
bool hinting = font.Hinting();
uint8 averageWeight = gSubpixelAverageWeight;
snprintf(signature, signatureSize, "%ld,%u,%d,%d,%.1f,%d,%d",
font.GetFamilyAndStyle(), charMap,
font.Face(), int(renderingType), font.Size(), hinting, averageWeight);
}
/*static*/ glyph_rendering
FontCacheEntry::_RenderTypeFor(const ServerFont& font)
{
glyph_rendering renderingType = gSubpixelAntialiasing ?
glyph_ren_subpix : glyph_ren_native_gray8;
if (font.Rotation() != 0.0 || font.Shear() != 90.0
|| font.FalseBoldWidth() != 0.0
|| font.Flags() & B_DISABLE_ANTIALIASING
|| font.Size() > 30
|| !font.Hinting()) {
renderingType = glyph_ren_outline;
}
return renderingType;
}