115
94
( 1.0, 0.0, 1.0 ),
119
colour_rgb = mainline_color
121
colour_rgb = colours[colour % len(colours)]
123
red = (colour_rgb[0] * fg) or bg
124
green = (colour_rgb[1] * fg) or bg
125
blue = (colour_rgb[2] * fg) or bg
97
colour %= len(colours)
98
red = (colours[colour][0] * fg) or bg
99
green = (colours[colour][1] * fg) or bg
100
blue = (colours[colour][2] * fg) or bg
127
102
ctx.set_source_rgb(red, green, blue)
129
def do_activate(event, widget, path, bg_area, cell_area, flags):
130
"""Renderers cannot be activated; always return True."""
133
def do_editing_started(event, widget, path, fb_area, cell_area, flags):
134
"""Renderers cannot be edited; always return None."""
137
def do_get_size(self, widget, cell_area):
104
def on_get_size(self, widget, cell_area):
138
105
"""Return the size we need for this cell.
140
107
Each cell is drawn individually and is only as wide as it needs
141
108
to be, we let the TreeViewColumn take care of making them all
144
box_size = self.box_size(widget) + 1
146
width = box_size * (self.columns_len + 1)
111
box_size = self.box_size(widget)
114
for start, end, colour in self.in_lines + self.out_lines:
115
cols = max(cols, start, end)
117
width = box_size * (cols + 1)
147
118
height = box_size
149
120
# FIXME I have no idea how to use cell_area properly
150
121
return (0, 0, width, height)
152
def do_render(self, ctx, widget, bg_area, cell_area, flags):
123
def on_render(self, window, widget, bg_area, cell_area, exp_area, flags):
153
124
"""Render an individual cell.
155
126
Draws the cell contents using cairo, taking care to clip what we
163
134
instead of a pure diagonal ... this reduces confusion by an
164
135
incredible amount.
137
ctx = window.cairo_create()
166
138
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)
169
144
box_size = self.box_size(widget)
171
ctx.set_line_width(box_size / 8)
173
146
# Draw lines into the cell
174
147
for start, end, colour in self.in_lines:
175
self.render_line (ctx, cell_area, box_size,
176
bg_area.y, bg_area.height,
177
start, end, colour, flags)
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)
179
165
# Draw lines out of the cell
180
166
for start, end, colour in self.out_lines:
181
self.render_line (ctx, cell_area, box_size,
182
bg_area.y + bg_area.height, bg_area.height,
183
start, end, colour, flags)
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)
185
187
# Draw the revision node in the right column
186
188
(column, colour) = self.node
187
189
ctx.arc(cell_area.x + box_size * column + box_size / 2,
188
190
cell_area.y + cell_area.height / 2,
189
box_size / 4, 0, 2 * math.pi)
191
if flags & Gtk.CellRendererState.SELECTED:
192
ctx.set_source_rgb(1.0, 1.0, 1.0)
193
ctx.set_line_width(box_size / 4)
194
ctx.stroke_preserve()
195
ctx.set_line_width(box_size / 8)
191
box_size / 5, 0, 2 * math.pi)
197
193
self.set_colour(ctx, colour, 0.0, 0.5)
198
194
ctx.stroke_preserve()
200
196
self.set_colour(ctx, colour, 0.5, 1.0)
203
self.render_tags(ctx, widget.create_pango_context(), cell_area, box_size)
205
def render_line(self, ctx, cell_area, box_size,
206
mid, height, start, end, colour, flags):
208
ctx.set_line_cap(CAIRO_LINE_CAP_ROUND)
209
x = cell_area.x + box_size * end + box_size / 2
210
ctx.move_to(x, mid + height / 3)
211
ctx.line_to(x, mid + height / 3)
212
ctx.move_to(x, mid + height / 6)
213
ctx.line_to(x, mid + height / 6)
216
ctx.set_line_cap(CAIRO_LINE_CAP_ROUND)
217
x = cell_area.x + box_size * start + box_size / 2
218
ctx.move_to(x, mid - height / 3)
219
ctx.line_to(x, mid - height / 3)
220
ctx.move_to(x, mid - height / 6)
221
ctx.line_to(x, mid - height / 6)
224
ctx.set_line_cap(CAIRO_LINE_CAP_BUTT)
225
startx = cell_area.x + box_size * start + box_size / 2
226
endx = cell_area.x + box_size * end + box_size / 2
228
ctx.move_to(startx, mid - height / 2)
230
if start - end == 0 :
231
ctx.line_to(endx, mid + height / 2 + 1)
233
ctx.curve_to(startx, mid - height / 5,
234
startx, mid - height / 5,
235
startx + (endx - startx) / 2, mid)
237
ctx.curve_to(endx, mid + height / 5,
238
endx, mid + height / 5 ,
239
endx, mid + height / 2 + 1)
241
if flags & Gtk.CellRendererState.SELECTED:
242
ctx.set_source_rgb(1.0, 1.0, 1.0)
243
ctx.set_line_width(box_size / 5)
244
ctx.stroke_preserve()
245
ctx.set_line_width(box_size / 8)
247
self.set_colour(ctx, colour, 0.0, 0.65)
251
def render_tags(self, ctx, pango_ctx, cell_area, box_size):
252
# colour ID used in self.set_colour on the tags
255
(column, colour) = self.node
257
font_desc = Pango.FontDescription()
258
font_desc.set_size(Pango.SCALE * 7)
260
tag_layout = Pango.Layout(pango_ctx)
261
tag_layout.set_font_description(font_desc)
263
# The width of the tag label stack
266
for tag_idx, tag in enumerate(self.tags):
267
tag_layout.set_text(" " + tag + " ", -1)
268
text_width, text_height = tag_layout.get_pixel_size()
271
box_size * (column + 1.3) + width
274
cell_area.height / 2 - \
277
width += text_width + 5
279
# Draw the tag border
280
ctx.move_to(x0 - box_size / 3, y0 + text_height / 2)
282
ctx.line_to(x0 + text_width, y0)
283
ctx.line_to(x0 + text_width, y0 + text_height)
284
ctx.line_to(x0, y0 + text_height)
285
ctx.line_to(x0 - box_size / 3, y0 + text_height / 2)
288
ctx.arc(x0 - box_size / 12,
289
y0 + text_height / 2,
293
self.set_colour(ctx, TAG_COLOUR_ID, 0.0, 0.5)
294
ctx.stroke_preserve()
296
ctx.set_fill_rule (CAIRO_FILL_RULE_EVEN_ODD)
297
self.set_colour(ctx, TAG_COLOUR_ID, 0.5, 1.0)
301
self.set_colour(ctx, 0, 0.0, 0.0)
303
PangoCairo.show_layout(ctx, tag_layout)