bool wxStaticText::SetFont( const wxFont &font )
{
const bool wasUnderlined = GetFont().GetUnderlined();
const bool wasStrickenThrough = GetFont().GetStrikethrough();
bool ret = wxControl::SetFont(font);
const bool isUnderlined = GetFont().GetUnderlined();
const bool isStrickenThrough = GetFont().GetStrikethrough();
if ( (isUnderlined != wasUnderlined) ||
(isStrickenThrough != wasStrickenThrough) )
{
// We need to update the Pango attributes used for the text.
if ( isUnderlined || isStrickenThrough )
{
PangoAttrList* const attrs = pango_attr_list_new();
if ( isUnderlined )
{
PangoAttribute *a = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE);
a->start_index = 0;
a->end_index = (guint)-1;
pango_attr_list_insert(attrs, a);
}
if ( isStrickenThrough )
{
PangoAttribute *a = pango_attr_strikethrough_new( TRUE );
a->start_index = 0;
a->end_index = (guint) -1;
pango_attr_list_insert(attrs, a);
}
gtk_label_set_attributes(GTK_LABEL(m_widget), attrs);
pango_attr_list_unref(attrs);
}
else // No special attributes any more.
{
// Just remove any attributes we had set.
gtk_label_set_attributes(GTK_LABEL(m_widget), NULL);
}
// The underlines for mnemonics are incompatible with using attributes
// so turn them off when setting underlined font.
gtk_label_set_use_underline(GTK_LABEL(m_widget), !isUnderlined);
}
// adjust the label size to the new label unless disabled
if (!HasFlag(wxST_NO_AUTORESIZE))
{
SetSize( GetBestSize() );
}
return ret;
}
/**
* _st_set_text_from_style:
* @text: Target #ClutterText
* @theme_node: Source #StThemeNode
*
* Set various GObject properties of the @text object using
* CSS information from @theme_node.
*/
void
_st_set_text_from_style (ClutterText *text,
StThemeNode *theme_node)
{
ClutterColor color;
StTextDecoration decoration;
PangoAttrList *attribs = NULL;
const PangoFontDescription *font;
StTextAlign align;
st_theme_node_get_foreground_color (theme_node, &color);
clutter_text_set_color (text, &color);
font = st_theme_node_get_font (theme_node);
clutter_text_set_font_description (text, (PangoFontDescription *) font);
decoration = st_theme_node_get_text_decoration (theme_node);
if (decoration)
{
attribs = pango_attr_list_new ();
if (decoration & ST_TEXT_DECORATION_UNDERLINE)
{
PangoAttribute *underline = pango_attr_underline_new (PANGO_UNDERLINE_SINGLE);
pango_attr_list_insert (attribs, underline);
}
if (decoration & ST_TEXT_DECORATION_LINE_THROUGH)
{
PangoAttribute *strikethrough = pango_attr_strikethrough_new (TRUE);
pango_attr_list_insert (attribs, strikethrough);
}
/* Pango doesn't have an equivalent attribute for _OVERLINE, and we deliberately
* skip BLINK (for now...)
*/
}
clutter_text_set_attributes (text, attribs);
if (attribs)
pango_attr_list_unref (attribs);
align = st_theme_node_get_text_align (theme_node);
if (align == ST_TEXT_ALIGN_JUSTIFY)
{
clutter_text_set_justify (text, TRUE);
clutter_text_set_line_alignment (text, PANGO_ALIGN_LEFT);
}
else
{
clutter_text_set_justify (text, FALSE);
clutter_text_set_line_alignment (text, (PangoAlignment) align);
}
}
static int cdfont(cdCtxCanvas *ctxcanvas, const char *typeface, int style, int size)
{
int is_italic = 0, is_bold = 0; /* default is CD_PLAIN */
int is_strikeout = 0, is_underline = 0;
char font[256];
PangoAttrList *attrs;
if (cdStrEqualNoCase(typeface, "Courier") || cdStrEqualNoCase(typeface, "Courier New"))
typeface = "Monospace";
else if (cdStrEqualNoCase(typeface, "Times") || cdStrEqualNoCase(typeface, "Times New Roman"))
typeface = "Serif";
else if (cdStrEqualNoCase(typeface, "Helvetica") || cdStrEqualNoCase(typeface, "Arial"))
typeface = "Sans";
if (style & CD_BOLD)
is_bold = 1;
if (style & CD_ITALIC)
is_italic = 1;
if (style & CD_UNDERLINE)
is_underline = 1;
if (style & CD_STRIKEOUT)
is_strikeout = 1;
size = cdGetFontSizePoints(ctxcanvas->canvas, size);
sprintf(font, "%s, %s%s%d", typeface, is_bold?"Bold ":"", is_italic?"Italic ":"", size);
if (ctxcanvas->fontdesc)
pango_font_description_free(ctxcanvas->fontdesc);
ctxcanvas->fontdesc = pango_font_description_from_string(font);
if (!ctxcanvas->fontdesc)
return 0;
if (ctxcanvas->fontlayout)
g_object_unref(ctxcanvas->fontlayout);
ctxcanvas->fontlayout = pango_layout_new(ctxcanvas->fontcontext);
pango_layout_set_font_description(ctxcanvas->fontlayout, ctxcanvas->fontdesc);
attrs = pango_attr_list_new();
pango_attr_list_insert(attrs, pango_attribute_copy(pango_attr_strikethrough_new(is_strikeout ? TRUE : FALSE)));
pango_attr_list_insert(attrs, pango_attribute_copy(pango_attr_underline_new(is_underline ? PANGO_UNDERLINE_SINGLE : PANGO_UNDERLINE_NONE)));
pango_layout_set_attributes(ctxcanvas->fontlayout, attrs);
pango_attr_list_unref(attrs);
return 1;
}
static gboolean
s_parse_func (MarkupData *md,
OpenTag *tag,
const gchar **names,
const gchar **values,
GMarkupParseContext *context,
GError **error)
{
CHECK_NO_ATTRS("s");
add_attribute (tag, pango_attr_strikethrough_new (TRUE));
return TRUE;
}
// Although we don't use this function yet, but we must create it here.
// first, for the prepare the unicode drawing support in wxUniv/x11 port.
// If we use pango to draw the text, then we must set some attributes
// for pango layout, such as "strikethrough" and "underline".
bool wxFont::SetPangoAttrs(PangoLayout* layout) const
{
if ( !IsOk() || !(GetUnderlined() || GetStrikethrough()) )
return false;
PangoAttrList* attrs = pango_attr_list_new();
PangoAttribute* a;
if ( GetUnderlined() )
{
a = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE);
pango_attr_list_insert(attrs, a);
}
if ( GetStrikethrough() )
{
a = pango_attr_strikethrough_new(true);
pango_attr_list_insert(attrs, a);
}
pango_layout_set_attributes(layout, attrs);
pango_attr_list_unref(attrs);
return true;
}
static PangoLayout *
rsvg_text_create_layout (RsvgDrawingCtx * ctx,
RsvgState * state, const char *text, PangoContext * context)
{
PangoFontDescription *font_desc;
PangoLayout *layout;
PangoAttrList *attr_list;
PangoAttribute *attribute;
if (state->lang)
pango_context_set_language (context, pango_language_from_string (state->lang));
if (state->unicode_bidi == UNICODE_BIDI_OVERRIDE || state->unicode_bidi == UNICODE_BIDI_EMBED)
pango_context_set_base_dir (context, state->text_dir);
font_desc = pango_font_description_copy (pango_context_get_font_description (context));
if (state->font_family)
pango_font_description_set_family_static (font_desc, state->font_family);
pango_font_description_set_style (font_desc, state->font_style);
pango_font_description_set_variant (font_desc, state->font_variant);
pango_font_description_set_weight (font_desc, state->font_weight);
pango_font_description_set_stretch (font_desc, state->font_stretch);
pango_font_description_set_size (font_desc,
_rsvg_css_normalize_font_size (state, ctx) *
PANGO_SCALE / ctx->dpi_y * 72);
layout = pango_layout_new (context);
pango_layout_set_font_description (layout, font_desc);
pango_font_description_free (font_desc);
attr_list = pango_attr_list_new ();
attribute = pango_attr_letter_spacing_new (_rsvg_css_normalize_length (&state->letter_spacing,
ctx, 'h') * PANGO_SCALE);
attribute->start_index = 0;
attribute->end_index = G_MAXINT;
pango_attr_list_insert (attr_list, attribute);
if (state->has_font_decor && text) {
if (state->font_decor & TEXT_UNDERLINE) {
attribute = pango_attr_underline_new (PANGO_UNDERLINE_SINGLE);
attribute->start_index = 0;
attribute->end_index = -1;
pango_attr_list_insert (attr_list, attribute);
}
if (state->font_decor & TEXT_STRIKE) {
attribute = pango_attr_strikethrough_new (TRUE);
attribute->start_index = 0;
attribute->end_index = -1;
pango_attr_list_insert (attr_list, attribute);
}
}
pango_layout_set_attributes (layout, attr_list);
pango_attr_list_unref (attr_list);
if (text)
pango_layout_set_text (layout, text, -1);
else
pango_layout_set_text (layout, NULL, 0);
pango_layout_set_alignment (layout, (state->text_dir == PANGO_DIRECTION_LTR ||
state->text_dir == PANGO_DIRECTION_TTB_LTR) ?
PANGO_ALIGN_LEFT : PANGO_ALIGN_RIGHT);
return layout;
}
/*
* This function is used by gail_text_cell_get_offset_at_point()
* and gail_text_cell_get_character_extents(). There is no
* cached PangoLayout for gailtextcell so we must create a temporary
* one using this function.
*/
static PangoLayout*
create_pango_layout(GtkCellRendererText *gtk_renderer,
GtkWidget *widget)
{
PangoAttrList *attr_list;
PangoLayout *layout;
PangoUnderline uline;
PangoFontMask mask;
layout = gtk_widget_create_pango_layout (widget, gtk_renderer->text);
if (gtk_renderer->extra_attrs)
attr_list = pango_attr_list_copy (gtk_renderer->extra_attrs);
else
attr_list = pango_attr_list_new ();
if (gtk_renderer->foreground_set)
{
PangoColor color;
color = gtk_renderer->foreground;
add_attr (attr_list, pango_attr_foreground_new (color.red,
color.green, color.blue));
}
if (gtk_renderer->strikethrough_set)
add_attr (attr_list,
pango_attr_strikethrough_new (gtk_renderer->strikethrough));
mask = pango_font_description_get_set_fields (gtk_renderer->font);
if (mask & PANGO_FONT_MASK_FAMILY)
add_attr (attr_list,
pango_attr_family_new (pango_font_description_get_family (gtk_renderer->font)));
if (mask & PANGO_FONT_MASK_STYLE)
add_attr (attr_list, pango_attr_style_new (pango_font_description_get_style (gtk_renderer->font)));
if (mask & PANGO_FONT_MASK_VARIANT)
add_attr (attr_list, pango_attr_variant_new (pango_font_description_get_variant (gtk_renderer->font)));
if (mask & PANGO_FONT_MASK_WEIGHT)
add_attr (attr_list, pango_attr_weight_new (pango_font_description_get_weight (gtk_renderer->font)));
if (mask & PANGO_FONT_MASK_STRETCH)
add_attr (attr_list, pango_attr_stretch_new (pango_font_description_get_stretch (gtk_renderer->font)));
if (mask & PANGO_FONT_MASK_SIZE)
add_attr (attr_list, pango_attr_size_new (pango_font_description_get_size (gtk_renderer->font)));
if (gtk_renderer->scale_set &&
gtk_renderer->font_scale != 1.0)
add_attr (attr_list, pango_attr_scale_new (gtk_renderer->font_scale));
if (gtk_renderer->underline_set)
uline = gtk_renderer->underline_style;
else
uline = PANGO_UNDERLINE_NONE;
if (uline != PANGO_UNDERLINE_NONE)
add_attr (attr_list,
pango_attr_underline_new (gtk_renderer->underline_style));
if (gtk_renderer->rise_set)
add_attr (attr_list, pango_attr_rise_new (gtk_renderer->rise));
pango_layout_set_attributes (layout, attr_list);
pango_layout_set_width (layout, -1);
pango_attr_list_unref (attr_list);
return layout;
}
void GuiSolidLabelElementRenderer::OnElementStateChanged()
{
FontProperties font = element->GetFont();
Color color = element->GetColor();
int layoutWidth, layoutHeight;
AString family = wtoa(font.fontFamily);
pango_font_description_set_family(pangoFontDesc, family.Buffer());
pango_font_description_set_absolute_size(pangoFontDesc, font.size * PANGO_SCALE);
if(font.italic) pango_font_description_set_style(pangoFontDesc, PANGO_STYLE_ITALIC);
else pango_font_description_set_style(pangoFontDesc, PANGO_STYLE_NORMAL);
if(attrList)
{
pango_attr_list_unref(attrList);
}
attrList = pango_attr_list_new();
pango_attr_list_insert(attrList, pango_attr_underline_new(
font.underline ? PANGO_UNDERLINE_SINGLE : PANGO_UNDERLINE_NONE)
);
pango_attr_list_insert(attrList, pango_attr_strikethrough_new (
font.strikeline ? TRUE : FALSE
)
);
pango_attr_list_insert(attrList, pango_attr_weight_new (
font.bold ? PANGO_WEIGHT_BOLD : PANGO_WEIGHT_MEDIUM
)
);
if(layout)
{
g_object_unref(layout);
layout = NULL;
}
if(cairoContext)
{
layout = pango_cairo_create_layout(cairoContext);
WString wtext = (font.fontFamily == L"Webdings") ? helpers::WebdingsMap(element->GetText()) : element->GetText();
AString text = wtoa(wtext);
pango_layout_set_font_description(layout, pangoFontDesc);
pango_layout_set_attributes(layout, attrList);
pango_layout_set_text(layout, text.Buffer(), text.Length());
pango_layout_set_alignment(layout,
element->GetHorizontalAlignment() == Alignment::Left ? PANGO_ALIGN_LEFT :
element->GetHorizontalAlignment() == Alignment::Center ? PANGO_ALIGN_CENTER :
element->GetHorizontalAlignment() == Alignment::Right ? PANGO_ALIGN_RIGHT :
PANGO_ALIGN_LEFT
);
pango_cairo_update_layout(cairoContext, layout);
pango_layout_get_pixel_size( layout, &layoutWidth, &layoutHeight);
minSize.x = layoutWidth;
minSize.y = layoutHeight;
}
}
bool wxFont::GTKSetPangoAttrs(PangoLayout* layout) const
{
if (!IsOk() || !(GetUnderlined() || GetStrikethrough()))
return false;
PangoAttrList* attrs = pango_attr_list_new();
PangoAttribute* a;
if (wx_pango_version_check(1,16,0))
{
// a PangoLayout which has leading/trailing spaces with underlined font
// is not correctly drawn by this pango version: Pango won't underline the spaces.
// This can be a problem; e.g. wxHTML rendering of underlined text relies on
// this behaviour. To workaround this problem, we use a special hack here
// suggested by pango maintainer Behdad Esfahbod: we prepend and append two
// empty space characters and give them a dummy colour attribute.
// This will force Pango to underline the leading/trailing spaces, too.
const char* text = pango_layout_get_text(layout);
const size_t n = strlen(text);
if ((n > 0 && text[0] == ' ') || (n > 1 && text[n - 1] == ' '))
{
wxCharBuffer buf(n + 6);
// copy the leading U+200C ZERO WIDTH NON-JOINER encoded in UTF8 format
memcpy(buf.data(), "\342\200\214", 3);
// copy the user string
memcpy(buf.data() + 3, text, n);
// copy the trailing U+200C ZERO WIDTH NON-JOINER encoded in UTF8 format
memcpy(buf.data() + 3 + n, "\342\200\214", 3);
pango_layout_set_text(layout, buf, n + 6);
// Add dummy attributes (use colour as it's invisible anyhow for 0
// width spaces) to ensure that the spaces in the beginning/end of the
// string are underlined too.
a = pango_attr_foreground_new(0x0057, 0x52A9, 0xD614);
a->start_index = 0;
a->end_index = 3;
pango_attr_list_insert(attrs, a);
a = pango_attr_foreground_new(0x0057, 0x52A9, 0xD614);
a->start_index = n + 3;
a->end_index = n + 6;
pango_attr_list_insert(attrs, a);
}
}
if (GetUnderlined())
{
a = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE);
pango_attr_list_insert(attrs, a);
}
if (GetStrikethrough())
{
a = pango_attr_strikethrough_new(true);
pango_attr_list_insert(attrs, a);
}
pango_layout_set_attributes(layout, attrs);
pango_attr_list_unref(attrs);
return true;
}
static IgtkFont* gtkFindFont(const char *standardfont)
{
PangoFontMetrics* metrics;
PangoFontDescription* fontdesc;
int i,
is_underline = 0,
is_strikeout = 0,
count = iupArrayCount(gtk_fonts);
IgtkFont* fonts = (IgtkFont*)iupArrayGetData(gtk_fonts);
/* Check if the standardfont already exists in cache */
for (i = 0; i < count; i++)
{
if (iupStrEqualNoCase(standardfont, fonts[i].standardfont))
return &fonts[i];
}
/* not found, create a new one */
{
int size;
int is_bold = 0,
is_italic = 0;
char typeface[1024];
char *new_standardfont = NULL;
const char* mapped_name;
if (!iupFontParsePango(standardfont, typeface, &size, &is_bold, &is_italic, &is_underline, &is_strikeout))
return NULL;
mapped_name = iupFontGetPangoName(typeface);
if (mapped_name)
strcpy(typeface, mapped_name);
if (is_underline || is_strikeout || size<0)
new_standardfont = iupStrDup(standardfont);
if (is_underline)
{
char* under = strstr(standardfont, "Underline");
int len = strlen(standardfont);
int len1 = (size_t)(under-standardfont);
memcpy(new_standardfont, standardfont, len1);
memcpy(new_standardfont+len1, under+9+1, len-len1-9+1); /* strlen("Underline") */
standardfont = new_standardfont;
}
if (is_strikeout)
{
char* strike = strstr(standardfont, "Strikeout");
int len = strlen(standardfont);
int len1 = (size_t)(strike-standardfont);
memcpy(new_standardfont, standardfont, len1);
memcpy(new_standardfont+len1, strike+9+1, len-len1-9+1); /* strlen("Strikeout") */
standardfont = new_standardfont;
}
if (size<0)
{
double res;
int len1, len2;
char *sz, size_str[10];
sprintf(size_str, "%d", size);
sz = strstr(standardfont, size_str);
len1 = (size_t)(sz-standardfont);
res = ((double)gdk_screen_get_width(gdk_screen_get_default()) / (double)gdk_screen_get_width_mm(gdk_screen_get_default())); /* pixels/mm */
/* 1 point = 1/72 inch 1 inch = 25.4 mm */
/* pixel = ((point/72)*25.4)*pixel/mm */
size = (int)((-size/res)*2.83464567 + 0.5); /* from pixels to points */
len2 = sprintf(size_str, "%d", size);
memcpy(new_standardfont, standardfont, len1);
memcpy(new_standardfont+len1, size_str, len2+1);
}
fontdesc = pango_font_description_from_string(standardfont);
if (new_standardfont) free(new_standardfont);
}
if (!fontdesc)
return NULL;
/* create room in the array */
fonts = (IgtkFont*)iupArrayInc(gtk_fonts);
strcpy(fonts[i].standardfont, standardfont);
fonts[i].fontdesc = fontdesc;
fonts[i].strikethrough = pango_attr_strikethrough_new(is_strikeout? TRUE: FALSE);
fonts[i].underline = pango_attr_underline_new(is_underline? PANGO_UNDERLINE_SINGLE: PANGO_UNDERLINE_NONE);
fonts[i].layout = pango_layout_new(gtk_fonts_context);
metrics = pango_context_get_metrics(gtk_fonts_context, fontdesc, pango_context_get_language(gtk_fonts_context));
fonts[i].charheight = pango_font_metrics_get_ascent(metrics) + pango_font_metrics_get_descent(metrics);
fonts[i].charheight = IUPGTK_PANGOUNITS2PIXELS(fonts[i].charheight);
fonts[i].charwidth = pango_font_metrics_get_approximate_char_width(metrics);
fonts[i].charwidth = IUPGTK_PANGOUNITS2PIXELS(fonts[i].charwidth);
pango_font_metrics_unref(metrics);
gtkFontUpdate(&(fonts[i]));
return &fonts[i];
}
PangoLayout*
gdip_pango_setup_layout (GpGraphics *graphics, GDIPCONST WCHAR *stringUnicode, int length, GDIPCONST GpFont *font,
GDIPCONST RectF *rc, RectF *box, GDIPCONST GpStringFormat *format, int **charsRemoved)
{
GpStringFormat *fmt;
PangoLayout *layout;
PangoContext *context;
PangoRectangle logical; /* logical size of text (used for alignment) */
PangoRectangle ink; /* ink size of text (to pixel boundaries) */
PangoAttrList *list = NULL;
GString *ftext;
PangoTabArray *tabs;
PangoLayoutIter *iter;
int i;
int FrameWidth; /* rc->Width (or rc->Height if vertical) */
int FrameHeight; /* rc->Height (or rc->Width if vertical) */
int FrameX; /* rc->X (or rc->Y if vertical) */
int FrameY; /* rc->Y (or rc->X if vertical) */
int y0; /* y0,y1,clipNN used for checking line positions vs. clip rectangle */
int y1;
double clipx1;
double clipx2;
double clipy1;
double clipy2;
int trimSpace; /* whether or not to trim the space */
gchar *text = ucs2_to_utf8 (stringUnicode, length);
if (!text)
return NULL;
length = strlen(text);
if (charsRemoved) {
(*charsRemoved) = GdipAlloc (sizeof (int) * length);
if (!*charsRemoved) {
GdipFree (text);
return NULL;
}
memset (*charsRemoved, 0, sizeof (int) * length);
}
/* TODO - Digit substitution */
// g_warning ("layout >%s< (%d) [x %g, y %g, w %g, h %g] [font %s, %g points]", text, length, rc->X, rc->Y, rc->Width, FrameHeight, font->face, font->emSize);
/* a NULL format is valid, it means get the generic default values (and free them later) */
if (!format) {
GpStatus status = GdipStringFormatGetGenericDefault ((GpStringFormat **)&fmt);
if (status != Ok) {
GdipFree (text);
return NULL;
}
} else {
fmt = (GpStringFormat *)format;
}
layout = pango_cairo_create_layout (graphics->ct);
/* context is owned by Pango (i.e. not referenced counted) do not free */
context = pango_layout_get_context (layout);
pango_layout_set_font_description (layout, gdip_get_pango_font_description ((GpFont*) font));
if (fmt->formatFlags & StringFormatFlagsDirectionVertical) {
FrameWidth = MAKE_SAFE_FOR_PANGO (SAFE_FLOAT_TO_UINT32 (rc->Height));
FrameHeight = MAKE_SAFE_FOR_PANGO (SAFE_FLOAT_TO_UINT32 (rc->Width));
FrameX = SAFE_FLOAT_TO_UINT32 (rc->Y);
FrameY = SAFE_FLOAT_TO_UINT32 (rc->X);
} else {
FrameWidth = MAKE_SAFE_FOR_PANGO (SAFE_FLOAT_TO_UINT32 (rc->Width));
FrameHeight = MAKE_SAFE_FOR_PANGO (SAFE_FLOAT_TO_UINT32 (rc->Height));
FrameX = SAFE_FLOAT_TO_UINT32 (rc->X);
FrameY = SAFE_FLOAT_TO_UINT32 (rc->Y);
}
//g_warning("FW: %d\tFH: %d", FrameWidth, FrameHeight);
if ((FrameWidth <= 0) || (fmt->formatFlags & StringFormatFlagsNoWrap)) {
pango_layout_set_width (layout, -1);
//g_warning ("Setting width: %d", -1);
} else {
pango_layout_set_width (layout, FrameWidth * PANGO_SCALE);
//g_warning ("Setting width: %d", FrameWidth * PANGO_SCALE);
}
if ((rc->Width != 0) && (rc->Height != 0) && ((fmt->formatFlags & StringFormatFlagsNoClip) == 0)) {
// g_warning ("\tclip [%g %g %g %g]", rc->X, rc->Y, rc->Width, rc->Height);
/* We do not call cairo_reset_clip because we want to take previous clipping into account */
/* Use rc instead of frame variables because this is pre-transform */
gdip_cairo_rectangle (graphics, rc->X, rc->Y, rc->Width, rc->Height, TRUE);
cairo_clip (graphics->ct);
}
/* with GDI+ the API not the renderer makes the direction decision */
pango_layout_set_auto_dir (layout, FALSE);
if (!(fmt->formatFlags & StringFormatFlagsDirectionRightToLeft) != !(fmt->formatFlags & StringFormatFlagsDirectionVertical)) {
pango_context_set_base_dir (context, PANGO_DIRECTION_WEAK_RTL);
pango_layout_context_changed (layout);
/* horizontal alignment */
switch (fmt->alignment) {
case StringAlignmentNear:
pango_layout_set_alignment (layout, PANGO_ALIGN_RIGHT);
break;
case StringAlignmentCenter:
pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
break;
case StringAlignmentFar:
pango_layout_set_alignment (layout, PANGO_ALIGN_LEFT);
break;
}
} else {
/* pango default base dir is WEAK_LTR, which is what we want */
/* horizontal alignment */
switch (fmt->alignment) {
case StringAlignmentNear:
pango_layout_set_alignment (layout, PANGO_ALIGN_LEFT);
break;
case StringAlignmentCenter:
pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
break;
case StringAlignmentFar:
pango_layout_set_alignment (layout, PANGO_ALIGN_RIGHT);
break;
}
}
#ifdef PANGO_VERSION_CHECK
#if PANGO_VERSION_CHECK(1,16,0)
if (fmt->formatFlags & StringFormatFlagsDirectionVertical) {
if (fmt->formatFlags & StringFormatFlagsDirectionRightToLeft) {
cairo_rotate (graphics->ct, M_PI/2.0);
cairo_translate (graphics->ct, 0, -FrameHeight);
pango_cairo_update_context (graphics->ct, context);
} else {
cairo_rotate (graphics->ct, 3.0*M_PI/2.0);
cairo_translate (graphics->ct, -FrameWidth, 0);
pango_cairo_update_context (graphics->ct, context);
}
/* only since Pango 1.16 */
pango_context_set_base_gravity (context, PANGO_GRAVITY_AUTO);
pango_context_set_gravity_hint (context, PANGO_GRAVITY_HINT_LINE);
pango_layout_context_changed (layout);
}
#endif
#endif
/* TODO - StringFormatFlagsDisplayFormatControl
scan and replace them ??? */
/* Trimming options seem to apply only to the end of the string - gdi+ will still wrap
* with preference to word first, then character. Unfortunately, pango doesn't have
* any way to differentiate wrapping behavior from trimming behavior that I could find */
pango_layout_set_wrap (layout, PANGO_WRAP_WORD_CHAR);
switch (fmt->trimming) {
case StringTrimmingNone:
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_NONE);
break;
case StringTrimmingCharacter:
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_NONE);
break;
case StringTrimmingWord:
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_NONE);
break;
case StringTrimmingEllipsisCharacter:
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_END);
if (!(fmt->formatFlags & StringFormatFlagsNoWrap))
pango_layout_set_height (layout, FrameHeight == 0 ? G_MAXINT32 : FrameHeight * PANGO_SCALE);
break;
case StringTrimmingEllipsisWord:
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_END);
if (!(fmt->formatFlags & StringFormatFlagsNoWrap))
pango_layout_set_height (layout, FrameHeight == 0 ? G_MAXINT32 : FrameHeight * PANGO_SCALE);
break;
case StringTrimmingEllipsisPath:
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_MIDDLE);
if (!(fmt->formatFlags & StringFormatFlagsNoWrap))
pango_layout_set_height (layout, FrameHeight == 0 ? G_MAXINT32 : FrameHeight * PANGO_SCALE);
break;
}
/* some stuff can only be done by manipulating the attributes (but we can avoid this most of the time) */
if ((fmt->formatFlags & StringFormatFlagsNoFontFallback) || (font->style & (FontStyleUnderline | FontStyleStrikeout))) {
list = gdip_get_layout_attributes (layout);
/* StringFormatFlagsNoFontFallback */
if (fmt->formatFlags & StringFormatFlagsNoFontFallback) {
PangoAttribute *attr = pango_attr_fallback_new (FALSE);
attr->start_index = 0;
attr->end_index = length;
pango_attr_list_insert (list, attr);
}
if (font->style & FontStyleUnderline) {
PangoAttribute *attr = pango_attr_underline_new (PANGO_UNDERLINE_SINGLE);
attr->start_index = 0;
attr->end_index = length;
pango_attr_list_insert (list, attr);
}
if (font->style & FontStyleStrikeout) {
PangoAttribute *attr = pango_attr_strikethrough_new (TRUE);
attr->start_index = 0;
attr->end_index = length;
pango_attr_list_insert (list, attr);
}
}
if (fmt->numtabStops > 0) {
float tabPosition;
tabs = pango_tab_array_new (fmt->numtabStops, FALSE);
tabPosition = fmt->firstTabOffset;
for (i = 0; i < fmt->numtabStops; i++) {
tabPosition += fmt->tabStops[i];
pango_tab_array_set_tab (tabs, i, PANGO_TAB_LEFT, (gint)min (tabPosition, PANGO_MAX) * PANGO_SCALE);
}
pango_layout_set_tabs (layout, tabs);
pango_tab_array_free (tabs);
}
//g_warning ("length before ws removal: %d", length);
trimSpace = (fmt->formatFlags & StringFormatFlagsMeasureTrailingSpaces) == 0;
switch (fmt->hotkeyPrefix) {
case HotkeyPrefixHide:
/* we need to remove any accelerator from the string */
ftext = gdip_process_string (text, length, 1, trimSpace, NULL, charsRemoved);
break;
case HotkeyPrefixShow:
/* optimization: is seems that we never see the hotkey when using an underline font */
if (font->style & FontStyleUnderline) {
/* so don't bother drawing it (and simply add the '&' character) */
ftext = gdip_process_string (text, length, 1, trimSpace, NULL, charsRemoved);
} else {
/* find accelerator and add attribute to the next character (unless it's the prefix too) */
if (!list)
list = gdip_get_layout_attributes (layout);
ftext = gdip_process_string (text, length, 1, trimSpace, list, charsRemoved);
}
break;
default:
ftext = gdip_process_string (text, length, 0, trimSpace, NULL, charsRemoved);
break;
}
length = ftext->len;
//g_warning ("length after ws removal: %d", length);
if (list) {
pango_layout_set_attributes (layout, list);
pango_attr_list_unref (list);
}
// g_warning("\tftext>%s< (%d)", ftext->str, -1);
pango_layout_set_text (layout, ftext->str, ftext->len);
GdipFree (text);
g_string_free(ftext, TRUE);
/* Trim the text after the last line for ease of counting lines/characters */
/* Also prevents drawing whole lines outside the boundaries if NoClip was specified */
/* In case of pre-existing clipping, use smaller of clip rectangle or our specified height */
if (FrameHeight > 0) {
cairo_clip_extents (graphics->ct, &clipx1, &clipy1, &clipx2, &clipy2);
if (clipy2 > 0 && !(fmt->formatFlags & StringFormatFlagsNoClip))
clipy2 = min (clipy2, FrameHeight + FrameY);
else
clipy2 = FrameHeight + FrameY;
iter = pango_layout_get_iter (layout);
do {
if (iter == NULL)
break;
pango_layout_iter_get_line_yrange (iter, &y0, &y1);
//g_warning("yrange: %d %d clipy2: %f", y0 / PANGO_SCALE, y1 / PANGO_SCALE, clipy2);
/* StringFormatFlagsLineLimit */
if (((fmt->formatFlags & StringFormatFlagsLineLimit) && y1 / PANGO_SCALE > clipy2) || (y0 / PANGO_SCALE > clipy2)) {
PangoLayoutLine *line = pango_layout_iter_get_line_readonly (iter);
pango_layout_set_text (layout, pango_layout_get_text (layout), line->start_index);
break;
}
} while (pango_layout_iter_next_line (iter));
pango_layout_iter_free (iter);
}
pango_layout_get_pixel_extents (layout, &ink, &logical);
// g_warning ("\tlogical\t[x %d, y %d, w %d, h %d][x %d, y %d, w %d, h %d]", logical.x, logical.y, logical.width, logical.height, ink.x, ink.y, ink.width, ink.height);
if ((fmt->formatFlags & StringFormatFlagsNoFitBlackBox) == 0) {
/* By default don't allow overhang - ink space may be larger than logical space */
if (fmt->formatFlags & StringFormatFlagsDirectionVertical) {
box->X = min (ink.y, logical.y);
box->Y = min (ink.x, logical.x);
box->Height = max (ink.width, logical.width);
box->Width = max (ink.height, logical.height);
} else {
box->X = min (ink.x, logical.x);
box->Y = min (ink.y, logical.y);
box->Height = max (ink.height, logical.height);
box->Width = max (ink.width, logical.width);
}
} else {
/* Allow overhang */
if (fmt->formatFlags & StringFormatFlagsDirectionVertical) {
box->X = logical.y;
box->Y = logical.x;
box->Height = logical.width;
box->Width = logical.height;
} else {
box->X = logical.x;
box->Y = logical.y;
box->Height = logical.height;
box->Width = logical.width;
}
}
// g_warning ("\tbox\t[x %g, y %g, w %g, h %g]", box->X, box->Y, box->Width, box->Height);
/* vertical alignment*/
if (fmt->formatFlags & StringFormatFlagsDirectionVertical) {
switch (fmt->lineAlignment) {
case StringAlignmentNear:
break;
case StringAlignmentCenter:
box->X += (rc->Width - box->Width) / 2;
break;
case StringAlignmentFar:
box->X += (rc->Width - box->Width);
break;
}
} else {
switch (fmt->lineAlignment) {
case StringAlignmentNear:
break;
case StringAlignmentCenter:
box->Y += (rc->Height - box->Height) / 2;
break;
case StringAlignmentFar:
box->Y += (rc->Height - box->Height);
break;
}
}
// g_warning ("va-box\t[x %g, y %g, w %g, h %g]", box->X, box->Y, box->Width, box->Height);
pango_cairo_update_layout (graphics->ct, layout);
return layout;
}
static PangoLayout*
create_layout(HippoCanvasText *text,
int allocation_width)
{
HippoCanvasBox *box = HIPPO_CANVAS_BOX(text);
PangoLayout *layout;
HippoCanvasStyle *style = hippo_canvas_context_get_style(HIPPO_CANVAS_CONTEXT(text));
g_return_val_if_fail(box->context != NULL, NULL);
layout = hippo_canvas_context_create_layout(box->context);
if (box->font_desc) {
PangoFontDescription *merged = pango_font_description_copy(hippo_canvas_style_get_font(style));
pango_font_description_merge(merged, box->font_desc, TRUE);
pango_layout_set_font_description(layout, merged);
pango_font_description_free(merged);
} else {
pango_layout_set_font_description(layout, hippo_canvas_style_get_font(style));
}
{
PangoAttrList *attrs;
HippoTextDecoration decoration = hippo_canvas_style_get_text_decoration(style);
if (text->attributes)
attrs = pango_attr_list_copy(text->attributes);
else
attrs = pango_attr_list_new();
if (ABS(1.0 - text->font_scale) > .000001) {
PangoAttribute *attr = pango_attr_scale_new(text->font_scale);
attr->start_index = 0;
attr->end_index = G_MAXUINT;
pango_attr_list_insert(attrs, attr);
}
if ((decoration & HIPPO_TEXT_DECORATION_UNDERLINE) != 0) {
PangoAttribute *attr = pango_attr_underline_new(TRUE);
attr->start_index = 0;
attr->end_index = G_MAXUINT;
pango_attr_list_insert(attrs, attr);
}
if ((decoration & HIPPO_TEXT_DECORATION_LINE_THROUGH) != 0) {
PangoAttribute *attr = pango_attr_strikethrough_new(TRUE);
attr->start_index = 0;
attr->end_index = G_MAXUINT;
pango_attr_list_insert(attrs, attr);
}
pango_layout_set_attributes(layout, attrs);
pango_attr_list_unref(attrs);
}
if (text->text != NULL) {
pango_layout_set_text(layout, text->text, -1);
}
if (allocation_width >= 0) {
int layout_width, layout_height;
pango_layout_get_size(layout, &layout_width, &layout_height);
layout_width /= PANGO_SCALE;
layout_height /= PANGO_SCALE;
/* Force layout smaller if required, but we don't want to make
* the layout _wider_ because it breaks alignment, so only do
* this if required.
*/
if (layout_width > allocation_width) {
pango_layout_set_width(layout, allocation_width * PANGO_SCALE);
/* If we set ellipsize, then it overrides wrapping. If we get
* too-small allocation for HIPPO_CANVAS_SIZE_FULL_WIDTH, then
* we want to ellipsize instead of wrapping.
*/
if (text->size_mode == HIPPO_CANVAS_SIZE_WRAP_WORD) {
pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_NONE);
} else {
pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_END);
}
/* For now if we say ellipsize end, we always just want one line.
* Maybe this should be an orthogonal property?
*/
if (text->size_mode == HIPPO_CANVAS_SIZE_ELLIPSIZE_END) {
pango_layout_set_single_paragraph_mode(layout, TRUE);
/* Pango's line separator character in this case is ugly, so we
* fix it. Not a very efficient approach, but oh well.
*/
if (text->text != NULL) {
char *new_text = remove_newlines(text->text);
/* avoid making the layout recompute everything
* if we didn't have newlines anyhow
*/
if (strcmp(text->text, new_text) != 0) {
pango_layout_set_text(layout, new_text, -1);
}
g_free(new_text);
}
}
}
}
return layout;
}
static PangoAttrList*
hildon_font_selection_dialog_create_attrlist (HildonFontSelectionDialog *fontsel,
guint start_index,
guint len)
{
PangoAttrList *list;
PangoAttribute *attr;
gint size, position;
gboolean family_set, size_set, color_set, bold, bold_set,
italic, italic_set, underline, underline_set,
strikethrough, strikethrough_set, position_set;
GdkColor *color = NULL;
gchar *family = NULL;
gdouble font_scaling = 1.0;
list = pango_attr_list_new ();
g_object_get (G_OBJECT (fontsel),
"family", &family, "family-set", &family_set,
"size", &size, "size-set", &size_set,
"color", &color, "color-set", &color_set,
"bold", &bold, "bold-set", &bold_set,
"italic", &italic, "italic-set", &italic_set,
"underline", &underline, "underline-set", &underline_set,
"strikethrough", &strikethrough, "strikethrough-set",
&strikethrough_set, "position", &position,
"position-set", &position_set,
"font-scaling", &font_scaling,
NULL);
/* family */
if (family_set)
{
attr = pango_attr_family_new (family);
add_preview_text_attr (list, attr, start_index, len);
}
g_free (family);
/* size */
if (size_set)
{
attr = pango_attr_size_new (size * PANGO_SCALE);
add_preview_text_attr (list, attr, start_index, len);
}
/*color*/
if (color_set)
{
attr = pango_attr_foreground_new (color->red, color->green, color->blue);
add_preview_text_attr (list, attr, start_index, len);
}
if (color != NULL)
gdk_color_free (color);
/*weight*/
if (bold_set)
{
if (bold)
attr = pango_attr_weight_new (PANGO_WEIGHT_BOLD);
else
attr = pango_attr_weight_new (PANGO_WEIGHT_NORMAL);
add_preview_text_attr(list, attr, start_index, len);
}
/* style */
if (italic_set)
{
if (italic)
attr = pango_attr_style_new (PANGO_STYLE_ITALIC);
else
attr = pango_attr_style_new (PANGO_STYLE_NORMAL);
add_preview_text_attr(list, attr, start_index, len);
}
/* underline */
if (underline_set)
{
if (underline)
attr = pango_attr_underline_new (PANGO_UNDERLINE_SINGLE);
else
attr = pango_attr_underline_new (PANGO_UNDERLINE_NONE);
add_preview_text_attr(list, attr, start_index, len);
}
/* strikethrough */
if (strikethrough_set)
{
if (strikethrough)
attr = pango_attr_strikethrough_new (TRUE);
else
attr = pango_attr_strikethrough_new (FALSE);
add_preview_text_attr(list, attr, start_index, len);
}
/* position */
if (position_set)
{
switch (position)
{
case 1: /*super*/
attr = pango_attr_rise_new (SUPERSCRIPT_RISE);
break;
case -1: /*sub*/
attr = pango_attr_rise_new (SUBSCRIPT_LOW);
break;
default: /*normal*/
attr = pango_attr_rise_new (0);
break;
}
add_preview_text_attr (list, attr, start_index, len);
}
/* font scaling for preview */
if (font_scaling)
{
attr = pango_attr_scale_new(font_scaling);
add_preview_text_attr(list, attr, 0, len + start_index);
}
return list;
}
static gboolean
span_parse_func (MarkupData *md,
OpenTag *tag,
const gchar **names,
const gchar **values,
GMarkupParseContext *context,
GError **error)
{
int line_number, char_number;
int i;
const char *family = NULL;
const char *size = NULL;
const char *style = NULL;
const char *weight = NULL;
const char *variant = NULL;
const char *stretch = NULL;
const char *desc = NULL;
const char *foreground = NULL;
const char *background = NULL;
const char *underline = NULL;
const char *underline_color = NULL;
const char *strikethrough = NULL;
const char *strikethrough_color = NULL;
const char *rise = NULL;
const char *letter_spacing = NULL;
const char *lang = NULL;
const char *fallback = NULL;
const char *gravity = NULL;
const char *gravity_hint = NULL;
g_markup_parse_context_get_position (context,
&line_number, &char_number);
#define CHECK_DUPLICATE(var) G_STMT_START{ \
if ((var) != NULL) { \
g_set_error (error, G_MARKUP_ERROR, \
G_MARKUP_ERROR_INVALID_CONTENT, \
_("Attribute '%s' occurs twice on <span> tag " \
"on line %d char %d, may only occur once"), \
names[i], line_number, char_number); \
return FALSE; \
}}G_STMT_END
#define CHECK_ATTRIBUTE2(var, name) \
if (attr_strcmp (names[i], (name)) == 0) { \
CHECK_DUPLICATE (var); \
(var) = values[i]; \
found = TRUE; \
break; \
}
#define CHECK_ATTRIBUTE(var) CHECK_ATTRIBUTE2 (var, G_STRINGIFY (var))
i = 0;
while (names[i])
{
gboolean found = FALSE;
switch (names[i][0]) {
case 'f':
CHECK_ATTRIBUTE (fallback);
CHECK_ATTRIBUTE2(desc, "font");
CHECK_ATTRIBUTE2(desc, "font_desc");
CHECK_ATTRIBUTE2(family, "face");
CHECK_ATTRIBUTE2(family, "font_family");
CHECK_ATTRIBUTE2(size, "font_size");
CHECK_ATTRIBUTE2(stretch, "font_stretch");
CHECK_ATTRIBUTE2(style, "font_style");
CHECK_ATTRIBUTE2(variant, "font_variant");
CHECK_ATTRIBUTE2(weight, "font_weight");
CHECK_ATTRIBUTE (foreground);
CHECK_ATTRIBUTE2 (foreground, "fgcolor");
break;
case 's':
CHECK_ATTRIBUTE (size);
CHECK_ATTRIBUTE (stretch);
CHECK_ATTRIBUTE (strikethrough);
CHECK_ATTRIBUTE (strikethrough_color);
CHECK_ATTRIBUTE (style);
break;
case 'g':
CHECK_ATTRIBUTE (gravity);
CHECK_ATTRIBUTE (gravity_hint);
break;
case 'l':
CHECK_ATTRIBUTE (lang);
CHECK_ATTRIBUTE (letter_spacing);
break;
case 'u':
CHECK_ATTRIBUTE (underline);
CHECK_ATTRIBUTE (underline_color);
break;
default:
CHECK_ATTRIBUTE (background);
CHECK_ATTRIBUTE2 (background, "bgcolor");
CHECK_ATTRIBUTE2(foreground, "color");
CHECK_ATTRIBUTE (rise);
CHECK_ATTRIBUTE (variant);
CHECK_ATTRIBUTE (weight);
break;
}
if (!found)
{
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_UNKNOWN_ATTRIBUTE,
_("Attribute '%s' is not allowed on the <span> tag "
"on line %d char %d"),
names[i], line_number, char_number);
return FALSE;
}
++i;
}
/* Parse desc first, then modify it with other font-related attributes. */
if (G_UNLIKELY (desc))
{
PangoFontDescription *parsed;
parsed = pango_font_description_from_string (desc);
if (parsed)
{
add_attribute (tag, pango_attr_font_desc_new (parsed));
if (tag)
open_tag_set_absolute_font_size (tag, pango_font_description_get_size (parsed));
pango_font_description_free (parsed);
}
}
if (G_UNLIKELY (family))
{
add_attribute (tag, pango_attr_family_new (family));
}
if (G_UNLIKELY (size))
{
if (g_ascii_isdigit (*size))
{
const char *end;
gint n;
/* cap size from the top at an arbitrary 2048 */
#define MAX_SIZE (2048 * PANGO_SCALE)
if ((end = size, !pango_scan_int (&end, &n)) || *end != '\0' || n < 0 || n > MAX_SIZE)
{
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
_("Value of 'size' attribute on <span> tag on line %d "
"could not be parsed; should be an integer less than %d, or a "
"string such as 'small', not '%s'"),
line_number, MAX_SIZE+1, size);
goto error;
}
add_attribute (tag, pango_attr_size_new (n));
if (tag)
open_tag_set_absolute_font_size (tag, n);
}
else if (strcmp (size, "smaller") == 0)
{
if (tag)
{
tag->scale_level_delta -= 1;
tag->scale_level -= 1;
}
}
else if (strcmp (size, "larger") == 0)
{
if (tag)
{
tag->scale_level_delta += 1;
tag->scale_level += 1;
}
}
else if (parse_absolute_size (tag, size))
; /* nothing */
else
{
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
_("Value of 'size' attribute on <span> tag on line %d "
"could not be parsed; should be an integer, or a "
"string such as 'small', not '%s'"),
line_number, size);
goto error;
}
}
if (G_UNLIKELY (style))
{
PangoStyle pango_style;
if (pango_parse_style (style, &pango_style, FALSE))
add_attribute (tag, pango_attr_style_new (pango_style));
else
{
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
_("'%s' is not a valid value for the 'style' attribute "
"on <span> tag, line %d; valid values are "
"'normal', 'oblique', 'italic'"),
style, line_number);
goto error;
}
}
if (G_UNLIKELY (weight))
{
PangoWeight pango_weight;
if (pango_parse_weight (weight, &pango_weight, FALSE))
add_attribute (tag,
pango_attr_weight_new (pango_weight));
else
{
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
_("'%s' is not a valid value for the 'weight' "
"attribute on <span> tag, line %d; valid "
"values are for example 'light', 'ultrabold' or a number"),
weight, line_number);
goto error;
}
}
if (G_UNLIKELY (variant))
{
PangoVariant pango_variant;
if (pango_parse_variant (variant, &pango_variant, FALSE))
add_attribute (tag, pango_attr_variant_new (pango_variant));
else
{
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
_("'%s' is not a valid value for the 'variant' "
"attribute on <span> tag, line %d; valid values are "
"'normal', 'smallcaps'"),
variant, line_number);
goto error;
}
}
if (G_UNLIKELY (stretch))
{
PangoStretch pango_stretch;
if (pango_parse_stretch (stretch, &pango_stretch, FALSE))
add_attribute (tag, pango_attr_stretch_new (pango_stretch));
else
{
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
_("'%s' is not a valid value for the 'stretch' "
"attribute on <span> tag, line %d; valid "
"values are for example 'condensed', "
"'ultraexpanded', 'normal'"),
stretch, line_number);
goto error;
}
}
if (G_UNLIKELY (foreground))
{
PangoColor color;
if (!span_parse_color ("foreground", foreground, &color, line_number, error))
goto error;
add_attribute (tag, pango_attr_foreground_new (color.red, color.green, color.blue));
}
if (G_UNLIKELY (background))
{
PangoColor color;
if (!span_parse_color ("background", background, &color, line_number, error))
goto error;
add_attribute (tag, pango_attr_background_new (color.red, color.green, color.blue));
}
if (G_UNLIKELY (underline))
{
PangoUnderline ul = PANGO_UNDERLINE_NONE;
if (!span_parse_enum ("underline", underline, PANGO_TYPE_UNDERLINE, &ul, line_number, error))
goto error;
add_attribute (tag, pango_attr_underline_new (ul));
}
if (G_UNLIKELY (underline_color))
{
PangoColor color;
if (!span_parse_color ("underline_color", underline_color, &color, line_number, error))
goto error;
add_attribute (tag, pango_attr_underline_color_new (color.red, color.green, color.blue));
}
if (G_UNLIKELY (gravity))
{
PangoGravity gr = PANGO_GRAVITY_SOUTH;
if (!span_parse_enum ("gravity", gravity, PANGO_TYPE_GRAVITY, &gr, line_number, error))
goto error;
add_attribute (tag, pango_attr_gravity_new (gr));
}
if (G_UNLIKELY (gravity_hint))
{
PangoGravityHint hint = PANGO_GRAVITY_HINT_NATURAL;
if (!span_parse_enum ("gravity_hint", gravity_hint, PANGO_TYPE_GRAVITY_HINT, &hint, line_number, error))
goto error;
add_attribute (tag, pango_attr_gravity_hint_new (hint));
}
if (G_UNLIKELY (strikethrough))
{
gboolean b = FALSE;
if (!span_parse_boolean ("strikethrough", strikethrough, &b, line_number, error))
goto error;
add_attribute (tag, pango_attr_strikethrough_new (b));
}
if (G_UNLIKELY (strikethrough_color))
{
PangoColor color;
if (!span_parse_color ("strikethrough_color", strikethrough_color, &color, line_number, error))
goto error;
add_attribute (tag, pango_attr_strikethrough_color_new (color.red, color.green, color.blue));
}
if (G_UNLIKELY (fallback))
{
gboolean b = FALSE;
if (!span_parse_boolean ("fallback", fallback, &b, line_number, error))
goto error;
add_attribute (tag, pango_attr_fallback_new (b));
}
if (G_UNLIKELY (rise))
{
gint n = 0;
if (!span_parse_int ("rise", rise, &n, line_number, error))
goto error;
add_attribute (tag, pango_attr_rise_new (n));
}
if (G_UNLIKELY (letter_spacing))
{
gint n = 0;
if (!span_parse_int ("letter_spacing", letter_spacing, &n, line_number, error))
goto error;
add_attribute (tag, pango_attr_letter_spacing_new (n));
}
if (G_UNLIKELY (lang))
{
add_attribute (tag,
pango_attr_language_new (pango_language_from_string (lang)));
}
return TRUE;
error:
return FALSE;
}
/**
* gimp_label_set_attributes:
* @label: a #GtkLabel
* @...: a list of PangoAttrType and value pairs terminated by -1.
*
* Sets Pango attributes on a #GtkLabel in a more convenient way than
* gtk_label_set_attributes().
*
* This function is useful if you want to change the font attributes
* of a #GtkLabel. This is an alternative to using PangoMarkup which
* is slow to parse and akward to handle in an i18n-friendly way.
*
* The attributes are set on the complete label, from start to end. If
* you need to set attributes on part of the label, you will have to
* use the PangoAttributes API directly.
*
* Since: 2.2
**/
void
gimp_label_set_attributes (GtkLabel *label,
...)
{
PangoAttribute *attr = NULL;
PangoAttrList *attrs;
va_list args;
g_return_if_fail (GTK_IS_LABEL (label));
attrs = pango_attr_list_new ();
va_start (args, label);
do
{
PangoAttrType attr_type = va_arg (args, PangoAttrType);
if (attr_type == -1)
attr_type = PANGO_ATTR_INVALID;
switch (attr_type)
{
case PANGO_ATTR_LANGUAGE:
attr = pango_attr_language_new (va_arg (args, PangoLanguage *));
break;
case PANGO_ATTR_FAMILY:
attr = pango_attr_family_new (va_arg (args, const gchar *));
break;
case PANGO_ATTR_STYLE:
attr = pango_attr_style_new (va_arg (args, PangoStyle));
break;
case PANGO_ATTR_WEIGHT:
attr = pango_attr_weight_new (va_arg (args, PangoWeight));
break;
case PANGO_ATTR_VARIANT:
attr = pango_attr_variant_new (va_arg (args, PangoVariant));
break;
case PANGO_ATTR_STRETCH:
attr = pango_attr_stretch_new (va_arg (args, PangoStretch));
break;
case PANGO_ATTR_SIZE:
attr = pango_attr_size_new (va_arg (args, gint));
break;
case PANGO_ATTR_FONT_DESC:
attr = pango_attr_font_desc_new (va_arg (args,
const PangoFontDescription *));
break;
case PANGO_ATTR_FOREGROUND:
{
const PangoColor *color = va_arg (args, const PangoColor *);
attr = pango_attr_foreground_new (color->red,
color->green,
color->blue);
}
break;
case PANGO_ATTR_BACKGROUND:
{
const PangoColor *color = va_arg (args, const PangoColor *);
attr = pango_attr_background_new (color->red,
color->green,
color->blue);
}
break;
case PANGO_ATTR_UNDERLINE:
attr = pango_attr_underline_new (va_arg (args, PangoUnderline));
break;
case PANGO_ATTR_STRIKETHROUGH:
attr = pango_attr_strikethrough_new (va_arg (args, gboolean));
break;
case PANGO_ATTR_RISE:
attr = pango_attr_rise_new (va_arg (args, gint));
break;
case PANGO_ATTR_SCALE:
attr = pango_attr_scale_new (va_arg (args, gdouble));
break;
default:
g_warning ("%s: invalid PangoAttribute type %d",
G_STRFUNC, attr_type);
case PANGO_ATTR_INVALID:
attr = NULL;
break;
}
if (attr)
{
attr->start_index = 0;
attr->end_index = -1;
pango_attr_list_insert (attrs, attr);
}
}
while (attr);
va_end (args);
gtk_label_set_attributes (label, attrs);
pango_attr_list_unref (attrs);
}
/* This function is used by gtk_text_cell_accessible_get_offset_at_point()
* and gtk_text_cell_accessible_get_character_extents(). There is no
* cached PangoLayout so we must create a temporary one using this function.
*/
static PangoLayout *
create_pango_layout (GtkTextCellAccessible *text)
{
GdkRGBA *foreground_rgba;
PangoAttrList *attr_list, *attributes;
PangoLayout *layout;
PangoUnderline uline, underline;
PangoFontMask mask;
PangoFontDescription *font_desc;
gboolean foreground_set, strikethrough_set, strikethrough;
gboolean scale_set, underline_set, rise_set;
gchar *renderer_text;
gdouble scale;
gint rise;
GtkRendererCellAccessible *gail_renderer;
GtkCellRendererText *gtk_renderer;
gail_renderer = GTK_RENDERER_CELL_ACCESSIBLE (text);
gtk_renderer = GTK_CELL_RENDERER_TEXT (gail_renderer->renderer);
g_object_get (gtk_renderer,
"text", &renderer_text,
"attributes", &attributes,
"foreground-set", &foreground_set,
"foreground-rgba", &foreground_rgba,
"strikethrough-set", &strikethrough_set,
"strikethrough", &strikethrough,
"font-desc", &font_desc,
"scale-set", &scale_set,
"scale", &scale,
"underline-set", &underline_set,
"underline", &underline,
"rise-set", &rise_set,
"rise", &rise,
NULL);
layout = gtk_widget_create_pango_layout (get_widget (text), renderer_text);
if (attributes)
attr_list = pango_attr_list_copy (attributes);
else
attr_list = pango_attr_list_new ();
if (foreground_set)
{
add_attr (attr_list, pango_attr_foreground_new (foreground_rgba->red * 65535,
foreground_rgba->green * 65535,
foreground_rgba->blue * 65535));
}
if (strikethrough_set)
add_attr (attr_list,
pango_attr_strikethrough_new (strikethrough));
mask = pango_font_description_get_set_fields (font_desc);
if (mask & PANGO_FONT_MASK_FAMILY)
add_attr (attr_list,
pango_attr_family_new (pango_font_description_get_family (font_desc)));
if (mask & PANGO_FONT_MASK_STYLE)
add_attr (attr_list, pango_attr_style_new (pango_font_description_get_style (font_desc)));
if (mask & PANGO_FONT_MASK_VARIANT)
add_attr (attr_list, pango_attr_variant_new (pango_font_description_get_variant (font_desc)));
if (mask & PANGO_FONT_MASK_WEIGHT)
add_attr (attr_list, pango_attr_weight_new (pango_font_description_get_weight (font_desc)));
if (mask & PANGO_FONT_MASK_STRETCH)
add_attr (attr_list, pango_attr_stretch_new (pango_font_description_get_stretch (font_desc)));
if (mask & PANGO_FONT_MASK_SIZE)
add_attr (attr_list, pango_attr_size_new (pango_font_description_get_size (font_desc)));
if (scale_set && scale != 1.0)
add_attr (attr_list, pango_attr_scale_new (scale));
if (underline_set)
uline = underline;
else
uline = PANGO_UNDERLINE_NONE;
if (uline != PANGO_UNDERLINE_NONE)
add_attr (attr_list,
pango_attr_underline_new (underline));
if (rise_set)
add_attr (attr_list, pango_attr_rise_new (rise));
pango_layout_set_attributes (layout, attr_list);
pango_layout_set_width (layout, -1);
pango_attr_list_unref (attr_list);
pango_font_description_free (font_desc);
pango_attr_list_unref (attributes);
g_free (renderer_text);
gdk_rgba_free (foreground_rgba);
return layout;
}
static IgtkFont* gtkFindFont(const char *standardfont)
{
PangoFontMetrics* metrics;
PangoFontDescription* fontdesc;
int i,
is_underline = 0,
is_strikeout = 0,
count = iupArrayCount(gtk_fonts);
IgtkFont* fonts = (IgtkFont*)iupArrayGetData(gtk_fonts);
/* Check if the standardfont already exists in cache */
for (i = 0; i < count; i++)
{
if (iupStrEqualNoCase(standardfont, fonts[i].standardfont))
return &fonts[i];
}
/* not found, create a new one */
{
int size = 0, is_pango = 0;
int is_bold = 0,
is_italic = 0;
char typeface[1024];
const char* mapped_name;
/* parse the old Windows format first */
if (!iupFontParseWin(standardfont, typeface, &size, &is_bold, &is_italic, &is_underline, &is_strikeout))
{
if (!iupFontParseX(standardfont, typeface, &size, &is_bold, &is_italic, &is_underline, &is_strikeout))
{
if (!iupFontParsePango(standardfont, typeface, &size, &is_bold, &is_italic, &is_underline, &is_strikeout))
return NULL;
else
is_pango = 1;
}
}
mapped_name = iupFontGetPangoName(typeface);
if (mapped_name)
strcpy(typeface, mapped_name);
if (is_pango && !is_underline && !is_strikeout && size>0)
fontdesc = pango_font_description_from_string(standardfont);
else
{
char new_standardfont[200];
if (size<0)
{
double res = ((double)gdk_screen_get_width(gdk_screen_get_default()) / (double)gdk_screen_get_width_mm(gdk_screen_get_default())); /* pixels/mm */
/* 1 point = 1/72 inch 1 inch = 25.4 mm */
/* pixel = ((point/72)*25.4)*pixel/mm */
size = (int)((-size/res)*2.83464567 + 0.5); /* from pixels to points */
}
sprintf(new_standardfont, "%s, %s%s%d", typeface, is_bold?"Bold ":"", is_italic?"Italic ":"", size);
fontdesc = pango_font_description_from_string(new_standardfont);
}
}
if (!fontdesc)
return NULL;
/* create room in the array */
fonts = (IgtkFont*)iupArrayInc(gtk_fonts);
strcpy(fonts[i].standardfont, standardfont);
fonts[i].fontdesc = fontdesc;
fonts[i].strikethrough = pango_attr_strikethrough_new(is_strikeout? TRUE: FALSE);
fonts[i].underline = pango_attr_underline_new(is_underline? PANGO_UNDERLINE_SINGLE: PANGO_UNDERLINE_NONE);
fonts[i].layout = pango_layout_new(gtk_fonts_context);
metrics = pango_context_get_metrics(gtk_fonts_context, fontdesc, pango_context_get_language(gtk_fonts_context));
fonts[i].charheight = pango_font_metrics_get_ascent(metrics) + pango_font_metrics_get_descent(metrics);
fonts[i].charheight = IUPGTK_PANGOUNITS2PIXELS(fonts[i].charheight);
fonts[i].charwidth = pango_font_metrics_get_approximate_char_width(metrics);
fonts[i].charwidth = IUPGTK_PANGOUNITS2PIXELS(fonts[i].charwidth);
pango_font_metrics_unref(metrics);
gtkFontUpdate(&(fonts[i]));
return &fonts[i];
}
