void CTextStyle::FromOldStyle(const TextStyle& style)
{
// Set some defaults.
SetDefault();
// Copy the style information over.
Font(style.get_face());
Size(MakeFixed(style.get_size(), style.get_size_fraction()));
BaseSize(MakeFixed(style.get_base_size(), style.get_base_size_fraction()));
Expansion(DivFixed(MakeFixed(style.get_base_size(), style.get_base_size_fraction()),
MakeFixed(FONT_EXPANSION_UNIT)));
Fill(style.get_pattern(), style.get_color());
Outline(style.get_outline(), style.get_color());
Shadow(style.get_shadow(), style.get_color());
m_Character.m_nEffectsVersion = 1;
XFlipped(style.get_xflipped());
YFlipped(style.get_yflipped());
// Color(style.get_color());
Alignment(style.get_line_alignment());
VerticalAlignment(style.get_vertical_alignment());
// Left and right margin should be zero (default) unless set by user.
// This fixes a problem converting old warp text boxes - they should
// always have zero margins!
LeftMargin(0);
RightMargin(0);
// LeftMargin(PageToInches(style.get_left_margin()));
// RightMargin(PageToInches(style.get_right_margin()));
LeadingType(LEADING_lines);
Leading(MakeFixed(0.875));
Underline(style.UnderlineStyle());
// Update our metrics.
UpdateFontMetrics();
}
// Compute the distance from the left and right ends of each row to the
// left and right edges of the block's polyblock. Illustration:
// ____________________________ _______________________
// | Howdy neighbor! | |rectangular blocks look|
// | This text is written to| |more like stacked pizza|
// |illustrate how useful poly- |boxes. |
// |blobs are in ----------- ------ The polyblob|
// |dealing with| _________ |for a BLOCK rec-|
// |harder layout| /===========\ |ords the possibly|
// |issues. | | _ _ | |skewed pseudo-|
// | You see this| | |_| \|_| | |rectangular |
// |text is flowed| | } | |boundary that|
// |around a mid-| \ ____ | |forms the ideal-|
// |cloumn portrait._____ \ / __|ized text margin|
// | Polyblobs exist| \ / |from which we should|
// |to account for insets| | | |measure paragraph|
// |which make otherwise| ----- |indentation. |
// ----------------------- ----------------------
//
// If we identify a drop-cap, we measure the left margin for the lines
// below the first line relative to one space past the drop cap. The
// first line's margin and those past the drop cap area are measured
// relative to the enclosing polyblock.
//
// TODO(rays): Before this will work well, we'll need to adjust the
// polyblob tighter around the text near images, as in:
// UNLV_AUTO:mag.3G0 page 2
// UNLV_AUTO:mag.3G4 page 16
void BLOCK::compute_row_margins() {
if (row_list()->empty() || row_list()->singleton()) {
return;
}
// If Layout analysis was not called, default to this.
POLY_BLOCK rect_block(bounding_box(), PT_FLOWING_TEXT);
POLY_BLOCK *pblock = &rect_block;
if (poly_block() != NULL) {
pblock = poly_block();
}
// Step One: Determine if there is a drop-cap.
// TODO(eger): Fix up drop cap code for RTL languages.
ROW_IT r_it(row_list());
ROW *first_row = r_it.data();
ROW *second_row = r_it.data_relative(1);
// initialize the bottom of a fictitious drop cap far above the first line.
int drop_cap_bottom = first_row->bounding_box().top() +
first_row->bounding_box().height();
int drop_cap_right = first_row->bounding_box().left();
int mid_second_line = second_row->bounding_box().top() -
second_row->bounding_box().height() / 2;
WERD_IT werd_it(r_it.data()->word_list()); // words of line one
if (!werd_it.empty()) {
C_BLOB_IT cblob_it(werd_it.data()->cblob_list());
for (cblob_it.mark_cycle_pt(); !cblob_it.cycled_list();
cblob_it.forward()) {
TBOX bbox = cblob_it.data()->bounding_box();
if (bbox.bottom() <= mid_second_line) {
// we found a real drop cap
first_row->set_has_drop_cap(true);
if (drop_cap_bottom > bbox.bottom())
drop_cap_bottom = bbox.bottom();
if (drop_cap_right < bbox.right())
drop_cap_right = bbox.right();
}
}
}
// Step Two: Calculate the margin from the text of each row to the block
// (or drop-cap) boundaries.
PB_LINE_IT lines(pblock);
r_it.set_to_list(row_list());
for (r_it.mark_cycle_pt(); !r_it.cycled_list(); r_it.forward()) {
ROW *row = r_it.data();
TBOX row_box = row->bounding_box();
int left_y = row->base_line(row_box.left()) + row->x_height();
int left_margin;
ICOORDELT_LIST *segments = lines.get_line(left_y);
LeftMargin(segments, row_box.left(), &left_margin);
delete segments;
if (row_box.top() >= drop_cap_bottom) {
int drop_cap_distance = row_box.left() - row->space() - drop_cap_right;
if (drop_cap_distance < 0)
drop_cap_distance = 0;
if (drop_cap_distance < left_margin)
left_margin = drop_cap_distance;
}
int right_y = row->base_line(row_box.right()) + row->x_height();
int right_margin;
segments = lines.get_line(right_y);
RightMargin(segments, row_box.right(), &right_margin);
delete segments;
row->set_lmargin(left_margin);
row->set_rmargin(right_margin);
}
}
GG::Pt ListRowSize() const {
return GG::Pt ( Width() - RightMargin(), ListRowHeight() );
}
