45
30
in_lines (start, end, colour) tuple list to draw inward lines,
46
31
out_lines (start, end, colour) tuple list to draw outward lines.
51
36
__gproperties__ = {
52
"node": ( GObject.TYPE_PYOBJECT, "node",
37
"node": ( gobject.TYPE_PYOBJECT, "node",
53
38
"revision node instruction",
54
GObject.PARAM_WRITABLE
56
"tags": ( GObject.TYPE_PYOBJECT, "tags",
57
"list of tags associated with the node",
58
GObject.PARAM_WRITABLE
60
"in-lines": ( GObject.TYPE_PYOBJECT, "in-lines",
39
gobject.PARAM_WRITABLE
41
"in-lines": ( gobject.TYPE_PYOBJECT, "in-lines",
61
42
"instructions to draw lines into the cell",
62
GObject.PARAM_WRITABLE
43
gobject.PARAM_WRITABLE
64
"out-lines": ( GObject.TYPE_PYOBJECT, "out-lines",
45
"out-lines": ( gobject.TYPE_PYOBJECT, "out-lines",
65
46
"instructions to draw lines out of the cell",
66
GObject.PARAM_WRITABLE
47
gobject.PARAM_WRITABLE
70
51
def do_set_property(self, property, value):
71
52
"""Set properties from GObject properties."""
72
53
if property.name == "node":
74
elif property.name == "tags":
76
55
elif property.name == "in-lines":
77
56
self.in_lines = value
78
57
elif property.name == "out-lines":
127
108
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):
110
def on_get_size(self, widget, cell_area):
138
111
"""Return the size we need for this cell.
140
113
Each cell is drawn individually and is only as wide as it needs
163
136
instead of a pure diagonal ... this reduces confusion by an
164
137
incredible amount.
139
ctx = window.cairo_create()
166
140
ctx.rectangle(bg_area.x, bg_area.y, bg_area.width, bg_area.height)
169
143
box_size = self.box_size(widget)
171
145
ctx.set_line_width(box_size / 8)
146
ctx.set_line_cap(cairo.LINE_CAP_ROUND)
173
148
# Draw lines into the cell
174
149
for start, end, colour in self.in_lines:
175
150
self.render_line (ctx, cell_area, box_size,
176
151
bg_area.y, bg_area.height,
177
start, end, colour, flags)
179
154
# Draw lines out of the cell
180
155
for start, end, colour in self.out_lines:
181
156
self.render_line (ctx, cell_area, box_size,
182
157
bg_area.y + bg_area.height, bg_area.height,
183
start, end, colour, flags)
185
160
# Draw the revision node in the right column
186
161
(column, colour) = self.node
188
163
cell_area.y + cell_area.height / 2,
189
164
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)
197
166
self.set_colour(ctx, colour, 0.0, 0.5)
198
167
ctx.stroke_preserve()
200
169
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):
172
def render_line (self, ctx, cell_area, box_size, mid, height, start, end, colour):
207
173
if start is None:
208
ctx.set_line_cap(CAIRO_LINE_CAP_ROUND)
209
174
x = cell_area.x + box_size * end + box_size / 2
210
175
ctx.move_to(x, mid + height / 3)
211
176
ctx.line_to(x, mid + height / 3)
212
177
ctx.move_to(x, mid + height / 6)
213
178
ctx.line_to(x, mid + height / 6)
215
180
elif end is None:
216
ctx.set_line_cap(CAIRO_LINE_CAP_ROUND)
217
181
x = cell_area.x + box_size * start + box_size / 2
218
182
ctx.move_to(x, mid - height / 3)
219
183
ctx.line_to(x, mid - height / 3)
220
184
ctx.move_to(x, mid - height / 6)
221
185
ctx.line_to(x, mid - height / 6)
224
ctx.set_line_cap(CAIRO_LINE_CAP_BUTT)
225
187
startx = cell_area.x + box_size * start + box_size / 2
226
188
endx = cell_area.x + box_size * end + box_size / 2
228
190
ctx.move_to(startx, mid - height / 2)
230
192
if start - end == 0 :
231
ctx.line_to(endx, mid + height / 2 + 1)
193
ctx.line_to(endx, mid + height / 2)
233
195
ctx.curve_to(startx, mid - height / 5,
234
196
startx, mid - height / 5,
235
197
startx + (endx - startx) / 2, mid)
237
199
ctx.curve_to(endx, mid + height / 5,
238
200
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)
201
endx, mid + height / 2)
247
203
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)
b'\\ No newline at end of file'