138
146
ctx.rectangle(bg_area.x, bg_area.y, bg_area.width, bg_area.height)
141
ctx.set_line_width(2)
142
ctx.set_line_cap(cairo.LINE_CAP_SQUARE)
144
149
box_size = self.box_size(widget)
151
ctx.set_line_width(box_size / 8)
152
ctx.set_line_cap(cairo.LINE_CAP_ROUND)
146
154
# Draw lines into the cell
147
155
for start, end, colour in self.in_lines:
148
ctx.move_to(cell_area.x + box_size * start + box_size / 2,
149
bg_area.y - bg_area.height / 2)
152
ctx.line_to(cell_area.x + box_size * start, bg_area.y)
153
ctx.line_to(cell_area.x + box_size * end + box_size, bg_area.y)
154
elif start - end < -1:
155
ctx.line_to(cell_area.x + box_size * start + box_size,
157
ctx.line_to(cell_area.x + box_size * end, bg_area.y)
159
ctx.line_to(cell_area.x + box_size * end + box_size / 2,
160
bg_area.y + bg_area.height / 2)
162
self.set_colour(ctx, colour, 0.0, 0.65)
156
self.render_line (ctx, cell_area, box_size,
157
bg_area.y, bg_area.height,
165
160
# Draw lines out of the cell
166
161
for start, end, colour in self.out_lines:
167
ctx.move_to(cell_area.x + box_size * start + box_size / 2,
168
bg_area.y + bg_area.height / 2)
171
ctx.line_to(cell_area.x + box_size * start,
172
bg_area.y + bg_area.height)
173
ctx.line_to(cell_area.x + box_size * end + box_size,
174
bg_area.y + bg_area.height)
175
elif start - end < -1:
176
ctx.line_to(cell_area.x + box_size * start + box_size,
177
bg_area.y + bg_area.height)
178
ctx.line_to(cell_area.x + box_size * end,
179
bg_area.y + bg_area.height)
181
ctx.line_to(cell_area.x + box_size * end + box_size / 2,
182
bg_area.y + bg_area.height / 2 + bg_area.height)
184
self.set_colour(ctx, colour, 0.0, 0.65)
162
self.render_line (ctx, cell_area, box_size,
163
bg_area.y + bg_area.height, bg_area.height,
187
166
# Draw the revision node in the right column
188
167
(column, colour) = self.node
189
168
ctx.arc(cell_area.x + box_size * column + box_size / 2,
190
169
cell_area.y + cell_area.height / 2,
191
box_size / 5, 0, 2 * math.pi)
170
box_size / 4, 0, 2 * math.pi)
193
172
self.set_colour(ctx, colour, 0.0, 0.5)
194
173
ctx.stroke_preserve()
196
175
self.set_colour(ctx, colour, 0.5, 1.0)
178
self.render_tags(ctx, widget.create_pango_context(), cell_area, box_size)
180
def render_line(self, ctx, cell_area, box_size, mid, height, start, end, colour):
182
x = cell_area.x + box_size * end + box_size / 2
183
ctx.move_to(x, mid + height / 3)
184
ctx.line_to(x, mid + height / 3)
185
ctx.move_to(x, mid + height / 6)
186
ctx.line_to(x, mid + height / 6)
189
x = cell_area.x + box_size * start + box_size / 2
190
ctx.move_to(x, mid - height / 3)
191
ctx.line_to(x, mid - height / 3)
192
ctx.move_to(x, mid - height / 6)
193
ctx.line_to(x, mid - height / 6)
195
startx = cell_area.x + box_size * start + box_size / 2
196
endx = cell_area.x + box_size * end + box_size / 2
198
ctx.move_to(startx, mid - height / 2)
200
if start - end == 0 :
201
ctx.line_to(endx, mid + height / 2)
203
ctx.curve_to(startx, mid - height / 5,
204
startx, mid - height / 5,
205
startx + (endx - startx) / 2, mid)
207
ctx.curve_to(endx, mid + height / 5,
208
endx, mid + height / 5 ,
209
endx, mid + height / 2)
211
self.set_colour(ctx, colour, 0.0, 0.65)
214
def render_tags(self, ctx, pango_ctx, cell_area, box_size):
215
# colour ID used in self.set_colour on the tags
218
(column, colour) = self.node
220
font_desc = pango.FontDescription()
221
font_desc.set_size(pango.SCALE * 7)
223
tag_layout = pango.Layout(pango_ctx)
224
tag_layout.set_font_description(font_desc)
226
# The width of the tag label stack
229
for tag_idx, tag in enumerate(self.tags):
230
tag_layout.set_text(" " + tag + " ")
231
text_width, text_height = tag_layout.get_pixel_size()
234
box_size * (column + 1.3) + width
237
cell_area.height / 2 - \
240
width += text_width + 5
242
# Draw the tag border
243
ctx.move_to(x0 - box_size / 3, y0 + text_height / 2)
245
ctx.line_to(x0 + text_width, y0)
246
ctx.line_to(x0 + text_width, y0 + text_height)
247
ctx.line_to(x0, y0 + text_height)
248
ctx.line_to(x0 - box_size / 3, y0 + text_height / 2)
251
ctx.arc(x0 - box_size / 12,
252
y0 + text_height / 2,
256
self.set_colour(ctx, TAG_COLOUR_ID, 0.0, 0.5)
257
ctx.stroke_preserve()
259
ctx.set_fill_rule (cairo.FILL_RULE_EVEN_ODD)
260
self.set_colour(ctx, TAG_COLOUR_ID, 0.5, 1.0)
264
self.set_colour(ctx, 0, 0.0, 0.0)
266
ctx.show_layout(tag_layout)