116
94
( 1.0, 0.0, 1.0 ),
120
colour_rgb = mainline_color
122
colour_rgb = colours[colour % len(colours)]
124
red = (colour_rgb[0] * fg) or bg
125
green = (colour_rgb[1] * fg) or bg
126
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
128
102
ctx.set_source_rgb(red, green, blue)
130
def do_activate(event, widget, path, bg_area, cell_area, flags):
131
"""Renderers cannot be activated; always return True."""
134
def do_editing_started(event, widget, path, fb_area, cell_area, flags):
135
"""Renderers cannot be edited; always return None."""
138
def do_get_size(self, widget, cell_area):
104
def on_get_size(self, widget, cell_area):
139
105
"""Return the size we need for this cell.
141
107
Each cell is drawn individually and is only as wide as it needs
142
108
to be, we let the TreeViewColumn take care of making them all
145
box_size = self.box_size(widget) + 1
147
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)
148
118
height = box_size
150
120
# FIXME I have no idea how to use cell_area properly
151
121
return (0, 0, width, height)
153
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):
154
124
"""Render an individual cell.
156
126
Draws the cell contents using cairo, taking care to clip what we
164
134
instead of a pure diagonal ... this reduces confusion by an
165
135
incredible amount.
137
ctx = window.cairo_create()
167
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)
170
144
box_size = self.box_size(widget)
172
ctx.set_line_width(box_size / 8)
174
146
# Draw lines into the cell
175
147
for start, end, colour in self.in_lines:
176
self.render_line (ctx, cell_area, box_size,
177
bg_area.y, bg_area.height,
178
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)
180
165
# Draw lines out of the cell
181
166
for start, end, colour in self.out_lines:
182
self.render_line (ctx, cell_area, box_size,
183
bg_area.y + bg_area.height, bg_area.height,
184
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)
186
187
# Draw the revision node in the right column
187
188
(column, colour) = self.node
188
189
ctx.arc(cell_area.x + box_size * column + box_size / 2,
189
190
cell_area.y + cell_area.height / 2,
190
box_size / 4, 0, 2 * math.pi)
192
if flags & Gtk.CellRendererState.SELECTED:
193
ctx.set_source_rgb(1.0, 1.0, 1.0)
194
ctx.set_line_width(box_size / 4)
195
ctx.stroke_preserve()
196
ctx.set_line_width(box_size / 8)
191
box_size / 5, 0, 2 * math.pi)
198
193
self.set_colour(ctx, colour, 0.0, 0.5)
199
194
ctx.stroke_preserve()
201
196
self.set_colour(ctx, colour, 0.5, 1.0)
204
self.render_tags(ctx, widget.create_pango_context(), cell_area, box_size)
206
def render_line(self, ctx, cell_area, box_size,
207
mid, height, start, end, colour, flags):
209
ctx.set_line_cap(CAIRO_LINE_CAP_ROUND)
210
x = cell_area.x + box_size * end + box_size / 2
211
ctx.move_to(x, mid + height / 3)
212
ctx.line_to(x, mid + height / 3)
213
ctx.move_to(x, mid + height / 6)
214
ctx.line_to(x, mid + height / 6)
217
ctx.set_line_cap(CAIRO_LINE_CAP_ROUND)
218
x = cell_area.x + box_size * start + box_size / 2
219
ctx.move_to(x, mid - height / 3)
220
ctx.line_to(x, mid - height / 3)
221
ctx.move_to(x, mid - height / 6)
222
ctx.line_to(x, mid - height / 6)
225
ctx.set_line_cap(CAIRO_LINE_CAP_BUTT)
226
startx = cell_area.x + box_size * start + box_size / 2
227
endx = cell_area.x + box_size * end + box_size / 2
229
ctx.move_to(startx, mid - height / 2)
231
if start - end == 0 :
232
ctx.line_to(endx, mid + height / 2 + 1)
234
ctx.curve_to(startx, mid - height / 5,
235
startx, mid - height / 5,
236
startx + (endx - startx) / 2, mid)
238
ctx.curve_to(endx, mid + height / 5,
239
endx, mid + height / 5 ,
240
endx, mid + height / 2 + 1)
242
if flags & Gtk.CellRendererState.SELECTED:
243
ctx.set_source_rgb(1.0, 1.0, 1.0)
244
ctx.set_line_width(box_size / 5)
245
ctx.stroke_preserve()
246
ctx.set_line_width(box_size / 8)
248
self.set_colour(ctx, colour, 0.0, 0.65)
252
def render_tags(self, ctx, pango_ctx, cell_area, box_size):
253
# colour ID used in self.set_colour on the tags
256
(column, colour) = self.node
258
font_desc = Pango.FontDescription()
259
font_desc.set_size(Pango.SCALE * 7)
261
tag_layout = Pango.Layout(pango_ctx)
262
tag_layout.set_font_description(font_desc)
264
# The width of the tag label stack
267
for tag_idx, tag in enumerate(self.tags):
268
tag_layout.set_text(" " + tag + " ", -1)
269
text_width, text_height = tag_layout.get_pixel_size()
272
box_size * (column + 1.3) + width
275
cell_area.height / 2 - \
278
width += text_width + 5
280
# Draw the tag border
281
ctx.move_to(x0 - box_size / 3, y0 + text_height / 2)
283
ctx.line_to(x0 + text_width, y0)
284
ctx.line_to(x0 + text_width, y0 + text_height)
285
ctx.line_to(x0, y0 + text_height)
286
ctx.line_to(x0 - box_size / 3, y0 + text_height / 2)
289
ctx.arc(x0 - box_size / 12,
290
y0 + text_height / 2,
294
self.set_colour(ctx, TAG_COLOUR_ID, 0.0, 0.5)
295
ctx.stroke_preserve()
297
ctx.set_fill_rule (CAIRO_FILL_RULE_EVEN_ODD)
298
self.set_colour(ctx, TAG_COLOUR_ID, 0.5, 1.0)
302
self.set_colour(ctx, 0, 0.0, 0.0)
304
PangoCairo.show_layout(ctx, tag_layout)