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Text: outline a string with a color or gradient

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Fill color is still the same with 'color' (i.e. can be overridden by markup still), but now there's a stroke_width and a stroke_color option that, when stroke_width > 0, will draw an outline below the text. Since this isn't a Pango feature, we can't do markup for outlines. (Maybe make that a feature request to Pango if you want it.)

Implements #51
This commit is contained in:
Andy Meneely
2015-04-28 22:27:26 -04:00
parent 70b2e52d57
commit 7c69cad506
21 changed files with 247 additions and 148 deletions
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spec/graphics/graphics_text_spec.rb
+21 -10
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@@ -52,11 +52,12 @@ describe Squib::Card, '#text' do
# text(str, font, font_size, color,
# x, y, width, height,
# markup, justify, wrap, ellipsize,
# spacing, align, valign, hint, angle)
# spacing, align, valign, hint, angle,
# stroke_width, stroke_color)
ret = card.text(Squib::TextEmbed.new,'foo', 'Sans 12', nil, '#abc',
10, 15, 20, 25,
nil, false, false, false,
1.0, :left, :top, nil, 0.0)
1.0, :left, :top, nil, 0.0, '#fff', 0)
expect(ret).to eq({width: 0, height: 0})
end
end
@@ -83,7 +84,7 @@ describe Squib::Card, '#text' do
card.text(Squib::TextEmbed.new, 'foo', 'Sans 12', nil, '#abc',
10, 15, 20, 50,
nil, false, false, false,
1.0, 'right', :top, nil, 0.0)
1.0, 'right', :top, nil, 0.0, '#fff', 0)
end
it 'aligns center with strings' do
@@ -92,7 +93,7 @@ describe Squib::Card, '#text' do
card.text(Squib::TextEmbed.new, 'foo', 'Sans 12', nil, '#abc',
10, 15, 20, 50,
nil, false, false, false,
1.0, 'center', :top, nil, 0.0)
1.0, 'center', :top, nil, 0.0, '#fff', 0)
end
it 'sets wrap to char with string char' do
@@ -101,7 +102,7 @@ describe Squib::Card, '#text' do
card.text(Squib::TextEmbed.new, 'foo', 'Sans 12', nil, '#abc',
10, 15, 20, 50,
nil, false, 'char', false,
1.0, :left, :top, nil, 0.0)
1.0, :left, :top, nil, 0.0, '#fff', 0)
end
it 'sets wrap to word with word string' do
@@ -110,7 +111,7 @@ describe Squib::Card, '#text' do
card.text(Squib::TextEmbed.new, 'foo', 'Sans 12', nil, '#abc',
10, 15, 20, 50,
nil, false, 'word', false,
1.0, :left, :top, nil, 0.0)
1.0, :left, :top, nil, 0.0, '#fff', 0)
end
it 'sets wrap to word_char with symbol word_char' do
@@ -119,7 +120,7 @@ describe Squib::Card, '#text' do
card.text(Squib::TextEmbed.new, 'foo', 'Sans 12', nil, '#abc',
10, 15, 20, 50,
nil, false, :word_char, false,
1.0, :left, :top, nil, 0.0)
1.0, :left, :top, nil, 0.0, '#fff', 0)
end
it 'sets wrap to word_char with true' do
@@ -128,7 +129,7 @@ describe Squib::Card, '#text' do
card.text(Squib::TextEmbed.new, 'foo', 'Sans 12', nil, '#abc',
10, 15, 20, 50,
nil, false, true, false,
1.0, :left, :top, nil, 0.0)
1.0, :left, :top, nil, 0.0, '#fff', 0)
end
it 'sets ellipsize to start properly' do
@@ -137,7 +138,7 @@ describe Squib::Card, '#text' do
card.text(Squib::TextEmbed.new, 'foo', 'Sans 12', nil, '#abc',
10, 15, 20, 50,
nil, false, true, :start,
1.0, :left, :top, nil, 0.0)
1.0, :left, :top, nil, 0.0, '#fff', 0)
end
it 'sets ellipsize to middle properly' do
@@ -146,7 +147,17 @@ describe Squib::Card, '#text' do
card.text(Squib::TextEmbed.new, 'foo', 'Sans 12', nil, '#abc',
10, 15, 20, 50,
nil, false, true, 'middle',
1.0, :left, :top, nil, 0.0)
1.0, :left, :top, nil, 0.0, '#fff', 0)
end
it 'implements stroke and fill when asked to' do
card = Squib::Card.new(deck, 100, 150)
expect(context).to receive(:set_line_width).with(3.0).once
expect(context).to receive(:pango_layout_path).once
card.text(Squib::TextEmbed.new, 'foo', 'Sans 12', nil, '#abc',
10, 15, 20, 50,
nil, false, true, 'middle',
1.0, :left, :top, nil, 0.0, '#f00', 3.0)
end
end