// Sets the font's family and face all at once
status_t
BFont::SetFamilyAndFace(const font_family family, uint16 face)
{
// To comply with the BeBook, this function will only set valid values
// i.e. passing a nonexistent family will cause only the face to be set.
// Additionally, if a particular face does not exist in a family, the
// closest match will be chosen.
BPrivate::AppServerLink link;
link.StartMessage(AS_GET_FAMILY_AND_STYLE_IDS);
link.AttachString(family, sizeof(font_family));
link.AttachString(NULL); // no style given
link.Attach<uint16>(fFamilyID);
link.Attach<uint16>(0xffff);
link.Attach<uint16>(face);
int32 status = B_ERROR;
if (link.FlushWithReply(status) != B_OK || status != B_OK)
return status;
link.Read<uint16>(&fFamilyID);
link.Read<uint16>(&fStyleID);
link.Read<uint16>(&fFace);
fHeight.ascent = kUninitializedAscent;
fExtraFlags = kUninitializedExtraFlags;
return B_OK;
}
// Sets the font's family and style all at once
status_t
BFont::SetFamilyAndStyle(const font_family family, const font_style style)
{
if (family == NULL && style == NULL)
return B_BAD_VALUE;
BPrivate::AppServerLink link;
link.StartMessage(AS_GET_FAMILY_AND_STYLE_IDS);
link.AttachString(family, sizeof(font_family));
link.AttachString(style, sizeof(font_style));
link.Attach<uint16>(fFamilyID);
link.Attach<uint16>(0xffff);
link.Attach<uint16>(fFace);
int32 status = B_ERROR;
if (link.FlushWithReply(status) != B_OK || status != B_OK)
return status;
link.Read<uint16>(&fFamilyID);
link.Read<uint16>(&fStyleID);
link.Read<uint16>(&fFace);
fHeight.ascent = kUninitializedAscent;
fExtraFlags = kUninitializedExtraFlags;
return B_OK;
}
// Private function used to replace the R5 hack which sets a system font
void
_set_system_font_(const char* which, font_family family, font_style style,
float size)
{
// R5 used a global area offset table to set the system fonts in the Font
// preferences panel. Bleah.
BPrivate::AppServerLink link;
link.StartMessage(AS_SET_SYSTEM_FONT);
link.AttachString(which, B_OS_NAME_LENGTH);
link.AttachString(family, sizeof(font_family));
link.AttachString(style, sizeof(font_style));
link.Attach<float>(size);
link.Flush();
}
// Sets the font's family and style all at once
void
BFont::SetFamilyAndStyle(uint32 code)
{
// R5 has a bug here: the face is not updated even though the IDs are set.
// This is a problem because the face flag includes Regular/Bold/Italic
// information in addition to stuff like underlining and strikethrough.
// As a result, this will need a trip to the server and, thus, be slower
// than R5's in order to be correct
uint16 family, style;
style = code & 0xFFFF;
family = (code & 0xFFFF0000) >> 16;
BPrivate::AppServerLink link;
link.StartMessage(AS_GET_FAMILY_AND_STYLE_IDS);
link.AttachString(NULL); // no family and style name
link.AttachString(NULL);
link.Attach<uint16>(family);
link.Attach<uint16>(style);
link.Attach<uint16>(fFace);
int32 fontcode;
if (link.FlushWithReply(fontcode) != B_OK || fontcode != B_OK)
return;
link.Read<uint16>(&fFamilyID);
link.Read<uint16>(&fStyleID);
link.Read<uint16>(&fFace);
fHeight.ascent = kUninitializedAscent;
fExtraFlags = kUninitializedExtraFlags;
}
void
BFont::GetStringWidths(const char* stringArray[], const int32 lengthArray[],
int32 numStrings, float widthArray[]) const
{
if (stringArray == NULL || lengthArray == NULL || numStrings < 1
|| widthArray == NULL) {
return;
}
BPrivate::AppServerLink link;
link.StartMessage(AS_GET_STRING_WIDTHS);
link.Attach<uint16>(fFamilyID);
link.Attach<uint16>(fStyleID);
link.Attach<float>(fSize);
link.Attach<uint8>(fSpacing);
link.Attach<int32>(numStrings);
// TODO: all strings into a single array???
// we do have a maximum message length, and it could be easily touched
// here...
for (int32 i = 0; i < numStrings; i++)
link.AttachString(stringArray[i], lengthArray[i]);
status_t status;
if (link.FlushWithReply(status) != B_OK || status != B_OK)
return;
link.Read(widthArray, sizeof(float) * numStrings);
}
void
BFont::GetBoundingBoxesForStrings(const char* stringArray[], int32 numStrings,
font_metric_mode mode, escapement_delta deltas[],
BRect boundingBoxArray[]) const
{
if (!stringArray || numStrings < 1 || !boundingBoxArray)
return;
int32 code;
BPrivate::AppServerLink link;
link.StartMessage(AS_GET_BOUNDINGBOXES_STRINGS);
link.Attach<uint16>(fFamilyID);
link.Attach<uint16>(fStyleID);
link.Attach<float>(fSize);
link.Attach<float>(fRotation);
link.Attach<float>(fShear);
link.Attach<float>(fFalseBoldWidth);
link.Attach<uint8>(fSpacing);
link.Attach<uint32>(fFlags);
link.Attach<font_metric_mode>(mode);
link.Attach<int32>(numStrings);
if (deltas) {
for (int32 i = 0; i < numStrings; i++) {
link.AttachString(stringArray[i]);
link.Attach<escapement_delta>(deltas[i]);
}
} else {
escapement_delta emptyDelta = {0, 0};
for (int32 i = 0; i < numStrings; i++) {
link.AttachString(stringArray[i]);
link.Attach<escapement_delta>(emptyDelta);
}
}
if (link.FlushWithReply(code) != B_OK || code != B_OK)
return;
link.Read(boundingBoxArray, sizeof(BRect) * numStrings);
}
/*! \brief Private function which sets the window decorator for the system.
\param entry_ref to the decorator to set
Will return detailed error status via status_t
*/
status_t
set_decorator(const BString& path)
{
BPrivate::AppServerLink link;
link.StartMessage(AS_SET_DECORATOR);
link.AttachString(path.String());
link.Flush();
status_t error = B_OK;
link.Read<status_t>(&error);
return error;
}
status_t
_get_system_default_font_(const char* which, font_family family,
font_style style, float* _size)
{
BPrivate::AppServerLink link;
link.StartMessage(AS_GET_SYSTEM_DEFAULT_FONT);
link.AttachString(which, B_OS_NAME_LENGTH);
int32 status = B_ERROR;
if (link.FlushWithReply(status) != B_OK
|| status < B_OK)
return status;
link.ReadString(family, sizeof(font_family));
link.ReadString(style, sizeof(font_style));
link.Read<float>(_size);
return B_OK;
}