diff options
Diffstat (limited to 'scripts/pybootchartgui/pybootchartgui/gui.py')
-rw-r--r-- | scripts/pybootchartgui/pybootchartgui/gui.py | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/scripts/pybootchartgui/pybootchartgui/gui.py b/scripts/pybootchartgui/pybootchartgui/gui.py new file mode 100644 index 0000000000..87081e30eb --- /dev/null +++ b/scripts/pybootchartgui/pybootchartgui/gui.py | |||
@@ -0,0 +1,273 @@ | |||
1 | import gobject | ||
2 | import gtk | ||
3 | import gtk.gdk | ||
4 | import gtk.keysyms | ||
5 | |||
6 | import draw | ||
7 | |||
8 | class PyBootchartWidget(gtk.DrawingArea): | ||
9 | __gsignals__ = { | ||
10 | 'expose-event': 'override', | ||
11 | 'clicked' : (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, (gobject.TYPE_STRING, gtk.gdk.Event)), | ||
12 | 'position-changed' : (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, (gobject.TYPE_INT, gobject.TYPE_INT)), | ||
13 | 'set-scroll-adjustments' : (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, (gtk.Adjustment, gtk.Adjustment)) | ||
14 | } | ||
15 | |||
16 | def __init__(self, res): | ||
17 | gtk.DrawingArea.__init__(self) | ||
18 | |||
19 | self.res = res | ||
20 | |||
21 | self.set_flags(gtk.CAN_FOCUS) | ||
22 | |||
23 | self.add_events(gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.BUTTON_RELEASE_MASK) | ||
24 | self.connect("button-press-event", self.on_area_button_press) | ||
25 | self.connect("button-release-event", self.on_area_button_release) | ||
26 | self.add_events(gtk.gdk.POINTER_MOTION_MASK | gtk.gdk.POINTER_MOTION_HINT_MASK | gtk.gdk.BUTTON_RELEASE_MASK) | ||
27 | self.connect("motion-notify-event", self.on_area_motion_notify) | ||
28 | self.connect("scroll-event", self.on_area_scroll_event) | ||
29 | self.connect('key-press-event', self.on_key_press_event) | ||
30 | |||
31 | self.connect('set-scroll-adjustments', self.on_set_scroll_adjustments) | ||
32 | self.connect("size-allocate", self.on_allocation_size_changed) | ||
33 | self.connect("position-changed", self.on_position_changed) | ||
34 | |||
35 | self.zoom_ratio = 1.0 | ||
36 | self.x, self.y = 0.0, 0.0 | ||
37 | |||
38 | self.chart_width, self.chart_height = draw.extents(*res) | ||
39 | self.hadj = None | ||
40 | self.vadj = None | ||
41 | |||
42 | def do_expose_event(self, event): | ||
43 | cr = self.window.cairo_create() | ||
44 | |||
45 | # set a clip region for the expose event | ||
46 | cr.rectangle( | ||
47 | event.area.x, event.area.y, | ||
48 | event.area.width, event.area.height | ||
49 | ) | ||
50 | cr.clip() | ||
51 | self.draw(cr, self.get_allocation()) | ||
52 | return False | ||
53 | |||
54 | def draw(self, cr, rect): | ||
55 | cr.set_source_rgba(1.0, 1.0, 1.0, 1.0) | ||
56 | cr.paint() | ||
57 | cr.scale(self.zoom_ratio, self.zoom_ratio) | ||
58 | cr.translate(-self.x, -self.y) | ||
59 | draw.render(cr, *self.res) | ||
60 | |||
61 | def position_changed(self): | ||
62 | self.emit("position-changed", self.x, self.y) | ||
63 | |||
64 | ZOOM_INCREMENT = 1.25 | ||
65 | |||
66 | def zoom_image(self, zoom_ratio): | ||
67 | self.zoom_ratio = zoom_ratio | ||
68 | self._set_scroll_adjustments(self.hadj, self.vadj) | ||
69 | self.queue_draw() | ||
70 | |||
71 | def zoom_to_rect(self, rect): | ||
72 | zoom_ratio = float(rect.width)/float(self.chart_width) | ||
73 | self.zoom_image(zoom_ratio) | ||
74 | self.x = 0 | ||
75 | self.position_changed() | ||
76 | |||
77 | def on_zoom_in(self, action): | ||
78 | self.zoom_image(self.zoom_ratio * self.ZOOM_INCREMENT) | ||
79 | |||
80 | def on_zoom_out(self, action): | ||
81 | self.zoom_image(self.zoom_ratio / self.ZOOM_INCREMENT) | ||
82 | |||
83 | def on_zoom_fit(self, action): | ||
84 | self.zoom_to_rect(self.get_allocation()) | ||
85 | |||
86 | def on_zoom_100(self, action): | ||
87 | self.zoom_image(1.0) | ||
88 | |||
89 | POS_INCREMENT = 100 | ||
90 | |||
91 | def on_key_press_event(self, widget, event): | ||
92 | if event.keyval == gtk.keysyms.Left: | ||
93 | self.x -= self.POS_INCREMENT/self.zoom_ratio | ||
94 | elif event.keyval == gtk.keysyms.Right: | ||
95 | self.x += self.POS_INCREMENT/self.zoom_ratio | ||
96 | elif event.keyval == gtk.keysyms.Up: | ||
97 | self.y -= self.POS_INCREMENT/self.zoom_ratio | ||
98 | elif event.keyval == gtk.keysyms.Down: | ||
99 | self.y += self.POS_INCREMENT/self.zoom_ratio | ||
100 | elif event.keyval == gtk.keysyms.Page_Up: | ||
101 | self.zoom_image(self.zoom_ratio * self.ZOOM_INCREMENT) | ||
102 | elif event.keyval == gtk.keysyms.Page_Down: | ||
103 | self.zoom_image(self.zoom_ratio / self.ZOOM_INCREMENT) | ||
104 | else: | ||
105 | return False | ||
106 | self.queue_draw() | ||
107 | self.position_changed() | ||
108 | return True | ||
109 | |||
110 | def on_area_button_press(self, area, event): | ||
111 | if event.button == 2 or event.button == 1: | ||
112 | area.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.FLEUR)) | ||
113 | self.prevmousex = event.x | ||
114 | self.prevmousey = event.y | ||
115 | if event.type not in (gtk.gdk.BUTTON_PRESS, gtk.gdk.BUTTON_RELEASE): | ||
116 | return False | ||
117 | return False | ||
118 | |||
119 | def on_area_button_release(self, area, event): | ||
120 | if event.button == 2 or event.button == 1: | ||
121 | area.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.ARROW)) | ||
122 | self.prevmousex = None | ||
123 | self.prevmousey = None | ||
124 | return True | ||
125 | return False | ||
126 | |||
127 | def on_area_scroll_event(self, area, event): | ||
128 | if event.direction == gtk.gdk.SCROLL_UP: | ||
129 | self.zoom_image(self.zoom_ratio * self.ZOOM_INCREMENT) | ||
130 | return True | ||
131 | if event.direction == gtk.gdk.SCROLL_DOWN: | ||
132 | self.zoom_image(self.zoom_ratio / self.ZOOM_INCREMENT) | ||
133 | return True | ||
134 | return False | ||
135 | |||
136 | def on_area_motion_notify(self, area, event): | ||
137 | state = event.state | ||
138 | if state & gtk.gdk.BUTTON2_MASK or state & gtk.gdk.BUTTON1_MASK: | ||
139 | x, y = int(event.x), int(event.y) | ||
140 | # pan the image | ||
141 | self.x += (self.prevmousex - x)/self.zoom_ratio | ||
142 | self.y += (self.prevmousey - y)/self.zoom_ratio | ||
143 | self.queue_draw() | ||
144 | self.prevmousex = x | ||
145 | self.prevmousey = y | ||
146 | self.position_changed() | ||
147 | return True | ||
148 | |||
149 | def on_set_scroll_adjustments(self, area, hadj, vadj): | ||
150 | self._set_scroll_adjustments(hadj, vadj) | ||
151 | |||
152 | def on_allocation_size_changed(self, widget, allocation): | ||
153 | self.hadj.page_size = allocation.width | ||
154 | self.hadj.page_increment = allocation.width * 0.9 | ||
155 | self.vadj.page_size = allocation.height | ||
156 | self.vadj.page_increment = allocation.height * 0.9 | ||
157 | |||
158 | def _set_scroll_adjustments(self, hadj, vadj): | ||
159 | if hadj == None: | ||
160 | hadj = gtk.Adjustment(0.0, 0.0, 0.0, 0.0, 0.0, 0.0) | ||
161 | if vadj == None: | ||
162 | vadj = gtk.Adjustment(0.0, 0.0, 0.0, 0.0, 0.0, 0.0) | ||
163 | |||
164 | if self.hadj != None and hadj != self.hadj: | ||
165 | self.hadj.disconnect(self.hadj_changed_signal_id) | ||
166 | if self.vadj != None and vadj != self.vadj: | ||
167 | self.vadj.disconnect(self.vadj_changed_signal_id) | ||
168 | |||
169 | if hadj != None: | ||
170 | self.hadj = hadj | ||
171 | self._set_adj_upper(self.hadj, self.zoom_ratio * self.chart_width) | ||
172 | self.hadj_changed_signal_id = self.hadj.connect('value-changed', self.on_adjustments_changed) | ||
173 | |||
174 | if vadj != None: | ||
175 | self.vadj = vadj | ||
176 | self._set_adj_upper(self.vadj, self.zoom_ratio * self.chart_height) | ||
177 | self.vadj_changed_signal_id = self.vadj.connect('value-changed', self.on_adjustments_changed) | ||
178 | |||
179 | def _set_adj_upper(self, adj, upper): | ||
180 | changed = False | ||
181 | value_changed = False | ||
182 | |||
183 | if adj.upper != upper: | ||
184 | adj.upper = upper | ||
185 | changed = True | ||
186 | |||
187 | max_value = max(0.0, upper - adj.page_size) | ||
188 | if adj.value > max_value: | ||
189 | adj.value = max_value | ||
190 | value_changed = True | ||
191 | |||
192 | if changed: | ||
193 | adj.changed() | ||
194 | if value_changed: | ||
195 | adj.value_changed() | ||
196 | |||
197 | def on_adjustments_changed(self, adj): | ||
198 | self.x = self.hadj.value / self.zoom_ratio | ||
199 | self.y = self.vadj.value / self.zoom_ratio | ||
200 | self.queue_draw() | ||
201 | |||
202 | def on_position_changed(self, widget, x, y): | ||
203 | self.hadj.value = x * self.zoom_ratio | ||
204 | self.vadj.value = y * self.zoom_ratio | ||
205 | |||
206 | PyBootchartWidget.set_set_scroll_adjustments_signal('set-scroll-adjustments') | ||
207 | |||
208 | class PyBootchartWindow(gtk.Window): | ||
209 | |||
210 | ui = ''' | ||
211 | <ui> | ||
212 | <toolbar name="ToolBar"> | ||
213 | <toolitem action="ZoomIn"/> | ||
214 | <toolitem action="ZoomOut"/> | ||
215 | <toolitem action="ZoomFit"/> | ||
216 | <toolitem action="Zoom100"/> | ||
217 | </toolbar> | ||
218 | </ui> | ||
219 | ''' | ||
220 | |||
221 | def __init__(self, res): | ||
222 | gtk.Window.__init__(self) | ||
223 | |||
224 | window = self | ||
225 | window.set_title('Bootchart') | ||
226 | window.set_default_size(512, 512) | ||
227 | vbox = gtk.VBox() | ||
228 | window.add(vbox) | ||
229 | |||
230 | self.widget = PyBootchartWidget(res) | ||
231 | |||
232 | # Create a UIManager instance | ||
233 | uimanager = self.uimanager = gtk.UIManager() | ||
234 | |||
235 | # Add the accelerator group to the toplevel window | ||
236 | accelgroup = uimanager.get_accel_group() | ||
237 | window.add_accel_group(accelgroup) | ||
238 | |||
239 | # Create an ActionGroup | ||
240 | actiongroup = gtk.ActionGroup('Actions') | ||
241 | self.actiongroup = actiongroup | ||
242 | |||
243 | # Create actions | ||
244 | actiongroup.add_actions(( | ||
245 | ('ZoomIn', gtk.STOCK_ZOOM_IN, None, None, None, self.widget.on_zoom_in), | ||
246 | ('ZoomOut', gtk.STOCK_ZOOM_OUT, None, None, None, self.widget.on_zoom_out), | ||
247 | ('ZoomFit', gtk.STOCK_ZOOM_FIT, 'Fit Width', None, None, self.widget.on_zoom_fit), | ||
248 | ('Zoom100', gtk.STOCK_ZOOM_100, None, None, None, self.widget.on_zoom_100), | ||
249 | )) | ||
250 | |||
251 | # Add the actiongroup to the uimanager | ||
252 | uimanager.insert_action_group(actiongroup, 0) | ||
253 | |||
254 | # Add a UI description | ||
255 | uimanager.add_ui_from_string(self.ui) | ||
256 | |||
257 | # Scrolled window | ||
258 | scrolled = gtk.ScrolledWindow() | ||
259 | scrolled.add(self.widget) | ||
260 | |||
261 | # Create a Toolbar | ||
262 | toolbar = uimanager.get_widget('/ToolBar') | ||
263 | vbox.pack_start(toolbar, False) | ||
264 | vbox.pack_start(scrolled) | ||
265 | |||
266 | self.set_focus(self.widget) | ||
267 | |||
268 | self.show_all() | ||
269 | |||
270 | def show(res): | ||
271 | win = PyBootchartWindow(res) | ||
272 | win.connect('destroy', gtk.main_quit) | ||
273 | gtk.main() | ||