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116 lines
3.5 KiB
116 lines
3.5 KiB
require 'pango' |
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module Squib |
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class Card |
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# :nodoc: |
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# @api private |
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def draw_text_hint(x,y,layout, color) |
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color ||= @deck.text_hint |
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return if color.to_s.eql? 'off' |
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# when w,h < 0, it was never set. extents[1] are ink extents |
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w = layout.width / Pango::SCALE |
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w = layout.extents[1].width / Pango::SCALE if w < 0 |
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h = layout.height / Pango::SCALE |
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h = layout.extents[1].height / Pango::SCALE if h < 0 |
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rect(x,y,w,h,0,0,'#0000',color, 2.0) |
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end |
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# :nodoc: |
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# @api private |
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def ellipsize(layout, ellipsize) |
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unless ellipsize.nil? |
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h = { :none => Pango::Layout::ELLIPSIZE_NONE, |
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:start => Pango::Layout::ELLIPSIZE_START, |
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:middle => Pango::Layout::ELLIPSIZE_MIDDLE, |
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:end => Pango::Layout::ELLIPSIZE_END, |
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true => Pango::Layout::ELLIPSIZE_END, |
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false => Pango::Layout::ELLIPSIZE_NONE |
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} |
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layout.ellipsize = h[ellipsize] |
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end |
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layout |
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end |
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# :nodoc: |
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# @api private |
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def wrap(layout, wrap) |
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unless wrap.nil? |
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h = { :word => Pango::Layout::WRAP_WORD, |
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:char => Pango::Layout::WRAP_CHAR, |
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:word_char => Pango::Layout::WRAP_WORD_CHAR, |
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true => Pango::Layout::WRAP_WORD_CHAR, |
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false => nil, |
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:none => nil |
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} |
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layout.wrap = h[wrap] |
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end |
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layout |
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end |
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# :nodoc: |
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# @api private |
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def align(layout, align) |
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unless align.nil? |
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h = { :left => Pango::ALIGN_LEFT, |
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:right => Pango::ALIGN_RIGHT, |
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:center => Pango::ALIGN_CENTER |
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} |
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layout.alignment = h[align] |
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end |
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layout |
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end |
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# :nodoc: |
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# @api private |
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def valign(cc, layout, x, y, valign) |
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if layout.height > 0 |
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ink_extents = layout.extents[1] |
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case valign |
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when :middle |
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cc.move_to(x, y + (layout.height - ink_extents.height) / (2 * Pango::SCALE)) |
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when :bottom |
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cc.move_to(x, y + (layout.height - ink_extents.height) / Pango::SCALE) |
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end |
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end |
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end |
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# :nodoc: |
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# @api private |
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def setwh(layout, width, height) |
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layout.width = width * Pango::SCALE unless width.nil? || width == :native |
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layout.height = height * Pango::SCALE unless height.nil? || height == :native |
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layout |
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end |
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# :nodoc: |
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# @api private |
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def text(str, font, font_size, color, |
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x, y, width, height, |
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markup, justify, wrap, ellipsize, |
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spacing, align, valign, hint) |
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Squib.logger.debug {"Placing '#{str}'' with font '#{font}' @ #{x}, #{y}, color: #{color}, etc."} |
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use_cairo do |cc| |
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cc.set_source_color(color) |
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cc.move_to(x,y) |
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layout = cc.create_pango_layout |
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font_desc = Pango::FontDescription.new(font) |
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font_desc.size = font_size * Pango::SCALE unless font_size.nil? |
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layout.font_description = font_desc |
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layout.text = str.to_s |
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layout.markup = str.to_s if markup |
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layout = setwh(layout, width, height) |
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layout = wrap(layout, wrap) |
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layout = ellipsize(layout, ellipsize) |
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layout = align(layout, align) |
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layout.justify = justify unless justify.nil? |
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layout.spacing = spacing * Pango::SCALE unless spacing.nil? |
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cc.update_pango_layout(layout) |
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valign(cc, layout, x,y, valign) |
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cc.update_pango_layout(layout) ; cc.show_pango_layout(layout) |
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draw_text_hint(x,y,layout,hint) |
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end |
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end |
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end |
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end |