| 1 | # Copyright (C) 2007 Insecure.Com LLC. |
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| 2 | # |
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| 3 | # Authors: Guilherme Polo <ggpolo@gmail.com> |
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| 4 | # |
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| 5 | # This program is free software; you can redistribute it and/or modify |
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| 6 | # it under the terms of the GNU General Public License as published by |
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| 7 | # the Free Software Foundation; either version 2 of the License, or |
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| 8 | # (at your option) any later version. |
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| 9 | # |
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| 10 | # This program is distributed in the hope that it will be useful, |
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| 11 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 13 | # GNU General Public License for more details. |
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| 14 | # |
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| 15 | # You should have received a copy of the GNU General Public License |
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| 16 | # along with this program; if not, write to the Free Software |
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| 17 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
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| 18 | # USA |
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| 19 | |
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| 20 | import gtk |
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| 21 | import cairo |
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| 22 | import gobject |
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| 23 | |
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| 24 | """ |
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| 25 | ToDO: Change how balloon points are being handled. |
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| 26 | """ |
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| 27 | |
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| 28 | # testing colors |
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| 29 | colors = { 0: (0, 0.4, 1), |
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| 30 | 1: (0.275, 0.627, 0.275), |
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| 31 | 2: (0.875, 0.259, 0.118), |
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| 32 | 3: (1, 0, 0.8), |
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| 33 | 4: (0.53, 0.52, 0.43), |
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| 34 | 5: (1, 0.7, 0), |
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| 35 | } |
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| 36 | |
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| 37 | (VERTICAL, HORIZONTAL) = range(2) |
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| 38 | (LINEGRAPH, AREAGRAPH) = range(2) |
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| 39 | |
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| 40 | class InteractiveGraph(gtk.Widget): |
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| 41 | """ |
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| 42 | Timeline Graph. |
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| 43 | """ |
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| 44 | |
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| 45 | def __init__(self, data, start_points, max, connector=None, filter=None, |
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| 46 | y_label='', x_label='', vdiv_labels=[], |
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| 47 | graph_type=LINEGRAPH, hdivs=5, balloons=True, |
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| 48 | draw_dashed_vert=False, draw_solid_vert=False, |
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| 49 | draw_arcs_always=False, draw_every_arc=False, |
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| 50 | startup_animation=True, gradient_fill=False, |
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| 51 | gradient_direction=VERTICAL, gradient_on_selection=False, |
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| 52 | progressive_selection_effect=True): |
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| 53 | """ |
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| 54 | -> data is expected to be a dict wit the following format: |
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| 55 | |
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| 56 | { key0: [ (line1_firstpoint, line2_firstpoint, .., |
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| 57 | lineN_firstpoint), |
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| 58 | (line1_secondpoint, line2_secondpoint, .., |
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| 59 | lineN_secondpoint), .., (line1_nthpoint, .., |
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| 60 | lineN_nthpoint) ], |
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| 61 | key1: [ .. same as above .. ], |
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| 62 | . |
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| 63 | . |
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| 64 | keyN: [ .. same as above .. ] } |
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| 65 | |
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| 66 | Number of keys in dict determines number of vertical divisors. |
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| 67 | |
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| 68 | |
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| 69 | Examples: |
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| 70 | Graph with one line, three points break, one vertical divisor: |
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| 71 | |
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| 72 | sample_data = { 0: [(1, ), (2, ), (3, )] } |
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| 73 | |
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| 74 | Note: Keys needs to be from 0 .. n (0, 1, 2, .., n) |
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| 75 | |
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| 76 | Graph with two lines, two points breaks, two vertical divisors: |
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| 77 | |
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| 78 | sample_data = { 0: [(1, 2), (4, 5)], |
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| 79 | 1: [(10, 9), (3, 8)] } |
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| 80 | |
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| 81 | Bad example: |
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| 82 | sample_data = { 0: [(1, 2, 3), (1, 2)] } |
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| 83 | |
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| 84 | Every line needs to contain same amount of points. |
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| 85 | |
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| 86 | |
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| 87 | -> start_points is a list of values that defines where each line |
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| 88 | should start, it could be the last points from last date |
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| 89 | before first date in this graph (for example). |
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| 90 | |
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| 91 | Example for graph with two lines: |
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| 92 | start_values = (5, 0) |
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| 93 | |
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| 94 | Example for graph with one line: |
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| 95 | start_values = (5, ) |
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| 96 | |
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| 97 | If you especify more start points than needed, they will be |
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| 98 | discarded. |
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| 99 | |
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| 100 | -> max is the max value. |
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| 101 | |
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| 102 | -> connector is required to update line_filter, graph data and |
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| 103 | possibly other things or to send updates. (this is used in |
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| 104 | conjunction with other umitInventory modules) |
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| 105 | |
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| 106 | -> filter is used to set what lines should be shown, two formats are |
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| 107 | accepted. |
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| 108 | |
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| 109 | format a) |
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| 110 | key: True or False |
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| 111 | |
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| 112 | Example: line_filter = { 0: True, 1: False } |
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| 113 | format b) |
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| 114 | key: (True or False, a, .., n) |
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| 115 | |
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| 116 | Example: line_filter = { 0: (True, "Item A"), |
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| 117 | 1: (False, "Item B") } |
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| 118 | |
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| 119 | -> y_label defines a label for y axis. |
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| 120 | |
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| 121 | -> x_label defines a label for x axis. |
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| 122 | |
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| 123 | -> vdiv_labels defines labels to be used at each vertical mark. |
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| 124 | |
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| 125 | -> hdivs determines the number of horizontal divisors. |
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| 126 | |
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| 127 | -> balloons determines if we should draw balloons pointing to |
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| 128 | higlighted points on selection. |
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| 129 | |
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| 130 | -> draw_dashed_vert determines if we should draw vertical dashed lines |
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| 131 | on graph. |
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| 132 | |
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| 133 | -> draw_solid_vert determines if we should draw vertical solid lines |
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| 134 | on graph. |
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| 135 | |
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| 136 | -> draw_arcs_always determines if arcs should always be drawn, if this |
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| 137 | is set to False arcs will be drawn only when a selection is done. |
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| 138 | |
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| 139 | -> draw_every_arc determines if every arc will be drawn or just |
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| 140 | drawn at boundary points. |
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| 141 | |
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| 142 | -> startup_anitmation determines if there will be an effect in graph |
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| 143 | startup. |
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| 144 | |
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| 145 | -> gradient_fill determines if selection will be painted with a |
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| 146 | gradient or solid color. |
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| 147 | |
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| 148 | -> gradient_direction determines the direction of gradient used when |
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| 149 | painting selection (if gradient_fill == True). |
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| 150 | |
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| 151 | -> gradient_on_selection, fill selection with solid color or gradient |
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| 152 | color. |
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| 153 | |
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| 154 | -> progressive_selection_effect determines if there will be an effect |
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| 155 | after selecting something or not. |
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| 156 | """ |
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| 157 | |
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| 158 | gtk.Widget.__init__(self) |
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| 159 | |
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| 160 | # effects |
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| 161 | self.speedup = False |
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| 162 | self.bestvisual = False |
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| 163 | self.standardmode = False |
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| 164 | self.draw_dashed_vert = draw_dashed_vert |
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| 165 | self.draw_solid_vert = draw_solid_vert |
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| 166 | self.startup_animation = startup_animation |
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| 167 | self.selection_effect = progressive_selection_effect |
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| 168 | self.selection_gradient = gradient_on_selection |
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| 169 | self.gradient_direction = gradient_direction |
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| 170 | self.gradient_fill = gradient_fill |
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| 171 | self.anim_timer = -1 |
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| 172 | |
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| 173 | # points highlight (arcs) |
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| 174 | self.draw_arcs_always = draw_arcs_always |
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| 175 | self.draw_every_arc = draw_every_arc |
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| 176 | self.show_balloons = balloons |
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| 177 | |
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| 178 | # borders |
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| 179 | self.border_width = 2 |
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| 180 | self.border_fix = self.border_width / 2.0 |
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| 181 | self.top_reserved = 1 # will be calculated when realized. |
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| 182 | self.left_reserved = 1 # will be calculated when realized. |
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| 183 | self.bottom_reserved = 1 # will be calculated when realized. |
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| 184 | |
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| 185 | # divisors |
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| 186 | self.mark_size = 10 # | or - size |
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| 187 | self.hdivisors = hdivs # number of horizontal divisors (min 2) |
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| 188 | self.vdivisors = len(data) # number of vertical divisors (min 2) |
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| 189 | self.hmarks_pos = { } # holds position for each horizontal mark |
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| 190 | self.vmarks_pos = { } # holds position for each vertical mark |
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| 191 | |
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| 192 | # selection |
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| 193 | self.alpha_ts = 0 # alpha threshold for selection painting |
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| 194 | self.selection_timer = - 1 # timer for doing selection painting |
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| 195 | self.selection_painting = False # control for selection painting |
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| 196 | |
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| 197 | # graph |
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| 198 | self.graph_type = graph_type |
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| 199 | self.selection = -1 # nothing selected |
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| 200 | self.hover = -1 # nothing being hovered |
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| 201 | self.__filter = None |
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| 202 | self.line_filter = filter |
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| 203 | self.max = max |
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| 204 | self.ylabel = y_label |
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| 205 | self.xlabel = x_label |
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| 206 | self.vdiv_labels = vdiv_labels |
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| 207 | self.start_pts_data = start_points |
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| 208 | self.start_pts = [ ] |
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| 209 | self.graph_data = data |
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| 210 | self.pts_per_div = len(self.graph_data[0]) |
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| 211 | self.num_graph_lines = -1 |
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| 212 | self.graphpoints = { } |
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| 213 | self.graph = { } # holds all data necessary for drawing the graph. |
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| 214 | self.graph["fg_black"] = (0, 0, 0) |
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| 215 | self.graph["fg_color"] = (0, 0, 0, 0.5) |
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| 216 | self.graph["bg_gradient"] = ((0.729, 0.851, 1, 0.8), (1, 1, 1, 0.6)) |
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| 217 | self.graph["gradient_sel"] = ((0, 0.4, 1), (1, 1, 1)) |
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| 218 | self.graph["bg_solid"] = (0.816, 0.906, 1) |
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| 219 | self.graph["bg_selection"] = (0, 0.4, 1) |
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| 220 | self.graph["selection_alpha_max"] = 0.25 |
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| 221 | |
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| 222 | # graph drawing animation |
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| 223 | self.divisors = 2 # number of divisions in each line segment, increasing |
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| 224 | # this causes animation to be smoother. |
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| 225 | self.ccount = 0 |
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| 226 | self.cur_point_indx = 0 |
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| 227 | self.painting_piece = 0 |
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| 228 | |
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| 229 | # balloons |
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| 230 | self.balloons = { } |
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| 231 | |
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| 232 | # connector |
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| 233 | self.connector = connector |
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| 234 | if self.connector: # using only for updating line filter for now |
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| 235 | self.connector.connect('filter-update', self.handle_filter_update) |
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| 236 | |
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| 237 | |
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| 238 | def speedup_performance(self, *args): |
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| 239 | """ |
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| 240 | Change settings to speed up drawing performance. |
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| 241 | """ |
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| 242 | if self.speedup: |
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| 243 | return # already set speedup mode |
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| 244 | |
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| 245 | self.hdivisors = 3 |
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| 246 | self.gradient_fill = False |
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| 247 | self.selection_gradient = False |
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| 248 | self.selection_effect = False |
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| 249 | self.draw_dashed_vert = False |
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| 250 | self.draw_solid_vert = False |
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| 251 | self.draw_arcs_always = False |
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| 252 | self.draw_every_arc = False |
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| 253 | self.show_balloons = True |
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| 254 | self.anim_timer = 0 |
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| 255 | |
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| 256 | self.speedup = True |
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| 257 | self.bestvisual = False |
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| 258 | self.standardmode = False |
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| 259 | |
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| 260 | self.setup_new_graph() |
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| 261 | |
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| 262 | |
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| 263 | def best_visual(self, *args): |
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| 264 | """ |
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| 265 | Change settings to draw with best visual. |
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| 266 | """ |
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| 267 | if self.bestvisual: |
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| 268 | return # already set bestvisual mode |
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| 269 | |
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| 270 | self.hdivisors = 5 |
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| 271 | self.gradient_fill = True |
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| 272 | self.selection_gradient = True |
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| 273 | self.selection_effect = True |
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| 274 | self.draw_dashed_vert = True |
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| 275 | self.draw_solid_vert = False |
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| 276 | self.draw_arcs_always = False |
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| 277 | self.draw_every_arc = True |
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| 278 | self.show_balloons = True |
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| 279 | |
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| 280 | self.speedup = False |
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| 281 | self.bestvisual = True |
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| 282 | self.standardmode = False |
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| 283 | |
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| 284 | self.setup_new_graph() |
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| 285 | |
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| 286 | |
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| 287 | def standard_mode(self, *args): |
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| 288 | """ |
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| 289 | Set standard settings. |
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| 290 | """ |
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| 291 | if self.standardmode: |
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| 292 | return # already set standard mode |
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| 293 | |
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| 294 | self.hdivisors = 5 |
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| 295 | self.gradient_fill = False |
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| 296 | self.selection_gradient = False |
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| 297 | self.selection_effect = True |
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| 298 | self.draw_dashed_vert = True |
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| 299 | self.draw_solid_vert = False |
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| 300 | self.draw_arcs_always = False |
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| 301 | self.draw_every_arc = False |
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| 302 | self.show_balloons = True |
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| 303 | |
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| 304 | self.speedup = False |
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| 305 | self.bestvisual = False |
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| 306 | self.standardmode = True |
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| 307 | |
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| 308 | # test for restarting animation |
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| 309 | #self.startup_animation = True |
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| 310 | #self.anim_timer = -1 |
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| 311 | #self.ccount = 0 |
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| 312 | #self.cur_point_indx = 0 |
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| 313 | #self.painting_piece = 0 |
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| 314 | #self._calculate_graph_points() |
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| 315 | # works! |
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| 316 | |
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| 317 | self.setup_new_graph() |
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| 318 | |
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| 319 | |
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| 320 | def setup_new_graph(self): |
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| 321 | """ |
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| 322 | Do everything necessary after changing graph attributes. |
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| 323 | """ |
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| 324 | self.hmarks_pos = { } |
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| 325 | self._calculate_graph_alloc() |
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| 326 | self._calculate_graph_points() |
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| 327 | |
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| 328 | if self.flags() & gtk.REALIZED: |
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| 329 | self.queue_draw() |
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| 330 | |
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| 331 | |
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| 332 | def get_graph_type(self): |
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| 333 | """ |
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| 334 | Get current graph type. |
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| 335 | """ |
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| 336 | return self.__grapht |
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| 337 | |
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| 338 | |
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| 339 | def set_graph_type(self, type): |
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| 340 | """ |
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| 341 | Set new graph type. |
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| 342 | """ |
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| 343 | self.__grapht = type |
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| 344 | |
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| 345 | if self.flags() & gtk.REALIZED: |
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| 346 | self.queue_draw() |
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| 347 | |
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| 348 | |
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| 349 | def get_start_effect(self): |
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| 350 | """ |
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| 351 | Retruns True if widget should do an effect on graph startup. |
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| 352 | """ |
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| 353 | return self.__seffect |
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| 354 | |
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| 355 | |
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| 356 | def set_start_effect(self, effect): |
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| 357 | """ |
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| 358 | Changes startup_animation value and also set new events based on this |
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| 359 | value. |
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| 360 | """ |
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| 361 | self.__seffect = effect |
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| 362 | |
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| 363 | if not self.startup_animation and (self.flags() & gtk.REALIZED): |
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| 364 | self.add_events(gtk.gdk.POINTER_MOTION_MASK | |
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| 365 | gtk.gdk.ENTER_NOTIFY_MASK | |
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| 366 | gtk.gdk.LEAVE_NOTIFY_MASK) |
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| 367 | |
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| 368 | |
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| 369 | def handle_filter_update(self, obj, filter): |
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| 370 | """ |
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| 371 | Passes filter to line_filter property. |
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| 372 | """ |
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| 373 | self.line_filter = filter |
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| 374 | |
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| 375 | |
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| 376 | def get_active_filter(self): |
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| 377 | """ |
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| 378 | Returns current filter being used to draw lines. |
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| 379 | """ |
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| 380 | return self.__filter |
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| 381 | |
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| 382 | |
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| 383 | def set_active_filter(self, filter): |
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| 384 | """ |
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| 385 | Set filter to be used when drawing lines. |
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| 386 | """ |
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| 387 | prev_filter = self.__filter |
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| 388 | if filter: |
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| 389 | if type(True) != type(filter[0]): # supposing it is a dict then |
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| 390 | filter = filter.copy() |
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| 391 | for key, value in filter.items(): |
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| 392 | filter[key] = value[0] |
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| 393 | |
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| 394 | if prev_filter != filter: |
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| 395 | self.__filter = filter |
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| 396 | |
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| 397 | if self.flags() & gtk.REALIZED: |
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| 398 | self.queue_draw() |
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| 399 | |
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| 400 | |
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| 401 | def get_alpha_threshold(self): |
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| 402 | """ |
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| 403 | Get alpha to be used in selection painting. |
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| 404 | """ |
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| 405 | return self.__alphats |
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| 406 | |
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| 407 | |
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| 408 | def set_alpha_threshold(self, threshold): |
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| 409 | """ |
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| 410 | Set alpha to be used in selection painting. |
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| 411 | """ |
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| 412 | self.__alphats = threshold |
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| 413 | |
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| 414 | |
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| 415 | def get_divisors(self): |
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| 416 | """ |
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| 417 | Get number of divisions per line segment. |
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| 418 | """ |
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| 419 | return self.__divisors |
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| 420 | |
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| 421 | |
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| 422 | def set_divisors(self, divisors): |
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| 423 | """ |
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| 424 | Set number of division per line segment. |
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| 425 | """ |
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| 426 | if divisors < 1: |
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| 427 | divisors = 1 |
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| 428 | |
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| 429 | self.__divisors = divisors |
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| 430 | |
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| 431 | |
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| 432 | def get_hdivisors(self): |
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| 433 | """ |
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| 434 | Get number of horizontal divisors |
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| 435 | """ |
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| 436 | return self.__hdiv |
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| 437 | |
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| 438 | |
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| 439 | def set_hdivisors(self, hdiv): |
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| 440 | """ |
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| 441 | Set number of horizontal divisors. |
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| 442 | """ |
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| 443 | if hdiv < 2: # min is two |
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| 444 | hdiv = 2 |
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| 445 | |
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| 446 | self.__hdiv = hdiv - 1 |
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| 447 | |
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| 448 | |
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| 449 | def _calculate_graph_alloc(self): |
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| 450 | """ |
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| 451 | Calculates x space, y space, distance between horizontal and |
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| 452 | vertical divisors for graph for current allocated space. |
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| 453 | """ |
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| 454 | self.graph["x_space"] = self.allocation[2] - self.left_reserved - \ |
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| 455 | self.border_width |
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| 456 | self.graph["y_space"] = self.allocation[3] - (self.top_reserved + \ |
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| 457 | self.bottom_reserved + \ |
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| 458 | self.border_fix) |
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| 459 | |
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| 460 | self.graph["hdiv"] = (self.graph["y_space"] - self.border_width) / \ |
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| 461 | float(self.hdivisors) |
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| 462 | self.graph["vdiv"] = (self.graph["x_space"] - self.border_width) / \ |
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| 463 | float(self.vdivisors) |
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| 464 | |
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| 465 | |
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| 466 | def _calculate_border_reserved(self): |
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| 467 | """ |
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| 468 | Calculate space needed to write labels. |
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| 469 | """ |
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| 470 | cr = self.window.cairo_create() |
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| 471 | _, _, width, height, _, _ = cr.text_extents("%d" % self.max) |
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| 472 | self.left_reserved = width + 4 + self.mark_size |
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| 473 | |
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| 474 | if width / 2.0 > self.top_reserved: |
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| 475 | self.top_reserved = width / 2.0 |
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| 476 | |
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| 477 | if self.ylabel: |
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| 478 | _, _, _, height, _, _ = cr.text_extents(self.ylabel) |
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| 479 | self.left_reserved += height + 6 |
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| 480 | |
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| 481 | self.graph["x_start"] = self.left_reserved |
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| 482 | self.graph["y_start"] = self.top_reserved |
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| 483 | |
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| 484 | # height will just work for labels with numbers here, will need |
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| 485 | # to change this asap. (likely to break with letter 'J') |
|---|
| 486 | self.bottom_reserved = height + 4 + self.mark_size |
|---|
| 487 | |
|---|
| 488 | if self.xlabel: |
|---|
| 489 | _, _, _, height, _, _ = cr.text_extents(self.xlabel) |
|---|
| 490 | self.bottom_reserved += height + 6 |
|---|
| 491 | |
|---|
| 492 | |
|---|
| 493 | def _calculate_point_ypos(self, value): |
|---|
| 494 | """ |
|---|
| 495 | Caluate y position for a value. |
|---|
| 496 | """ |
|---|
| 497 | if value == 0: |
|---|
| 498 | return self.graph["y_space"] + self.top_reserved |
|---|
| 499 | else: |
|---|
| 500 | return self.graph["y_space"] + self.top_reserved \ |
|---|
| 501 | - (self.graph["y_space"] / (self.max / float(value))) |
|---|
| 502 | |
|---|
| 503 | |
|---|
| 504 | def _calculate_graph_points(self): |
|---|
| 505 | """ |
|---|
| 506 | Calculates (x, y) points for data in self.graph_data. |
|---|
| 507 | """ |
|---|
| 508 | x_pts_dist = self.graph["vdiv"] / self.pts_per_div |
|---|
| 509 | x_pts_dx = self.left_reserved + self.border_fix + x_pts_dist |
|---|
| 510 | |
|---|
| 511 | # Calculate data points position |
|---|
| 512 | for key, item in self.graph_data.items(): |
|---|
| 513 | k_pts = [ ] |
|---|
| 514 | for indx, piece in enumerate(item): |
|---|
| 515 | # calculate y position |
|---|
| 516 | pt = [ ] |
|---|
| 517 | for pv in piece: |
|---|
| 518 | pt.append(self._calculate_point_ypos(pv)) |
|---|
| 519 | |
|---|
| 520 | # add x position to the point |
|---|
| 521 | pt = [(x_pts_dx, p) for p in pt] |
|---|
| 522 | |
|---|
| 523 | k_pts.append(pt) |
|---|
| 524 | x_pts_dx += x_pts_dist |
|---|
| 525 | |
|---|
| 526 | self.graphpoints[key] = k_pts |
|---|
| 527 | |
|---|
| 528 | self.num_graph_lines = len(self.graphpoints[0][0]) |
|---|
| 529 | |
|---|
| 530 | # Calculate start_point(s) position |
|---|
| 531 | start_x = self.left_reserved |
|---|
| 532 | start_y = [ ] |
|---|
| 533 | for pv in self.start_pts_data: |
|---|
| 534 | start_y.append(self._calculate_point_ypos(pv)) |
|---|
| 535 | |
|---|
| 536 | self.start_pts = [(start_x, y) for y in start_y] |
|---|
| 537 | |
|---|
| 538 | # set startup points for graph animation |
|---|
| 539 | self.cur_point = { } |
|---|
| 540 | for i in range(self.num_graph_lines): |
|---|
| 541 | self.cur_point[i] = self.start_pts[i] |
|---|
| 542 | |
|---|
| 543 | |
|---|
| 544 | def _gradient_fill(self, cr, gradient=True): |
|---|
| 545 | """ |
|---|
| 546 | Fill graph with gradient or solid color. |
|---|
| 547 | """ |
|---|
| 548 | cr.save() |
|---|
| 549 | |
|---|
| 550 | cr.rectangle(self.graph["x_start"] + self.border_fix, |
|---|
| 551 | self.graph["y_start"] + self.border_fix, |
|---|
| 552 | self.graph["x_space"] - self.border_fix, |
|---|
| 553 | self.graph["y_space"] - self.border_fix) |
|---|
| 554 | |
|---|
| 555 | if gradient: # gradient fill |
|---|
| 556 | if self.gradient_direction == VERTICAL: |
|---|
| 557 | end_x = self.graph["x_start"] - self.border_width |
|---|
| 558 | end_y = self.graph["y_space"] - self.border_width |
|---|
| 559 | else: |
|---|
| 560 | end_x = self.graph["x_space"] - self.border_width |
|---|
| 561 | end_y = self.graph["y_start"] - self.border_width |
|---|
| 562 | |
|---|
| 563 | pat = cairo.LinearGradient(self.graph["x_start"] + self.border_fix, |
|---|
| 564 | self.graph["y_start"] + self.border_fix, |
|---|
| 565 | end_x, end_y) |
|---|
| 566 | pat.add_color_stop_rgba(0, *self.graph["bg_gradient"][0]) |
|---|
| 567 | pat.add_color_stop_rgba(1, *self.graph["bg_gradient"][1]) |
|---|
| 568 | cr.set_source(pat) |
|---|
| 569 | |
|---|
| 570 | else: # solid fill |
|---|
| 571 | cr.set_source_rgb(*self.graph["bg_solid"]) |
|---|
| 572 | |
|---|
| 573 | cr.fill() |
|---|
| 574 | |
|---|
| 575 | cr.restore() |
|---|
| 576 | |
|---|
| 577 | |
|---|
| 578 | def _solid_fill(self, cr): |
|---|
| 579 | """ |
|---|
| 580 | Fill graph with solid coloring. |
|---|
| 581 | """ |
|---|
| 582 | self._gradient_fill(cr, False) |
|---|
| 583 | |
|---|
| 584 | |
|---|
| 585 | def _draw_graph_base(self, cr): |
|---|
| 586 | """ |
|---|
| 587 | Draw base of graph. |
|---|
| 588 | """ |
|---|
| 589 | # draw x, y axis and store marker positions |
|---|
| 590 | # | |
|---|
| 591 | # _|______ |
|---|
| 592 | # | |
|---|
| 593 | cr.save() |
|---|
| 594 | |
|---|
| 595 | cr.move_to(self.graph["x_start"], self.graph["y_start"]) |
|---|
| 596 | cr.rel_line_to(0, self.graph["y_space"] + self.mark_size) |
|---|
| 597 | |
|---|
| 598 | self.vmarks_pos[0] = cr.get_current_point() |
|---|
| 599 | |
|---|
| 600 | cr.rel_line_to(0, - self.mark_size) |
|---|
| 601 | cr.rel_line_to(- self.mark_size, 0) |
|---|
| 602 | |
|---|
| 603 | self.hmarks_pos[0] = cr.get_current_point() |
|---|
| 604 | |
|---|
| 605 | cr.rel_line_to(self.graph["x_space"] + self.mark_size, 0) |
|---|
| 606 | |
|---|
| 607 | cr.set_source_rgba(*self.graph["fg_color"]) |
|---|
| 608 | cr.stroke() |
|---|
| 609 | |
|---|
| 610 | cr.restore() |
|---|
| 611 | |
|---|
| 612 | # horizontal divisors (first is draw when x axis was drawn) |
|---|
| 613 | hdiv_y = self.top_reserved |
|---|
| 614 | |
|---|
| 615 | cr.save() |
|---|
| 616 | |
|---|
| 617 | for hdiv in range(self.hdivisors): |
|---|
| 618 | # + 0.5 is used below to draw a sharp line |
|---|
| 619 | cr.move_to(self.graph["x_start"] - self.mark_size - \ |
|---|
| 620 | self.border_fix, int(hdiv_y) + 0.5) |
|---|
| 621 | |
|---|
| 622 | cpoint = list(cr.get_current_point()) |
|---|
| 623 | cpoint[0] += self.border_fix |
|---|
| 624 | self.hmarks_pos[self.hdivisors - hdiv] = cpoint |
|---|
| 625 | |
|---|
| 626 | cr.rel_line_to(self.graph["x_space"] + self.mark_size, 0) |
|---|
| 627 | |
|---|
| 628 | hdiv_y += self.graph["hdiv"] |
|---|
| 629 | |
|---|
| 630 | cr.set_source_rgba(*self.graph["fg_color"]) |
|---|
| 631 | cr.set_line_width(0.5) |
|---|
| 632 | cr.stroke() |
|---|
| 633 | |
|---|
| 634 | cr.restore() |
|---|
| 635 | |
|---|
| 636 | # draw vertical marks at bottom (first is draw when y axis was drawn) |
|---|
| 637 | vdiv_x = self.graph["x_space"] + self.left_reserved - \ |
|---|
| 638 | self.border_fix - self.graph["vdiv"] |
|---|
| 639 | |
|---|
| 640 | cr.save() |
|---|
| 641 | |
|---|
| 642 | cr.set_source_rgba(*self.graph["fg_color"]) |
|---|
| 643 | |
|---|
| 644 | for vdiv in range(1, self.vdivisors): |
|---|
| 645 | # dashed vertical line |
|---|
| 646 | if self.draw_dashed_vert or self.draw_solid_vert: |
|---|
| 647 | cr.move_to(vdiv_x, self.top_reserved + self.border_fix) |
|---|
| 648 | if self.draw_dashed_vert: |
|---|
| 649 | cr.set_dash([1, 2], 0) |
|---|
| 650 | cr.rel_line_to(0, self.graph["y_space"]) |
|---|
| 651 | cr.stroke() |
|---|
| 652 | cr.set_dash([]) |
|---|
| 653 | |
|---|
| 654 | # bottom vertical mark |
|---|
| 655 | cr.move_to(vdiv_x, self.top_reserved + self.border_fix + \ |
|---|
| 656 | self.graph["y_space"]) |
|---|
| 657 | cr.rel_line_to(0, self.mark_size) |
|---|
| 658 | cpoint = list(cr.get_current_point()) |
|---|
| 659 | |
|---|
| 660 | if self.draw_dashed_vert or self.draw_solid_vert: |
|---|
| 661 | cr.stroke() |
|---|
| 662 | |
|---|
| 663 | cpoint[1] -= self.border_fix |
|---|
| 664 | self.vmarks_pos[self.vdivisors - vdiv] = cpoint |
|---|
| 665 | |
|---|
| 666 | vdiv_x -= self.graph["vdiv"] |
|---|
| 667 | |
|---|
| 668 | if not self.draw_dashed_vert or not self.draw_solid_vert: |
|---|
| 669 | cr.stroke() |
|---|
| 670 | |
|---|
| 671 | cr.restore() |
|---|
| 672 | |
|---|
| 673 | |
|---|
| 674 | def _write_hmarks_values(self, cr): |
|---|
| 675 | """ |
|---|
| 676 | Write horizontal marks values based on self.max |
|---|
| 677 | """ |
|---|
| 678 | self.hm_value = self.max / float(self.hdivisors) |
|---|
| 679 | self.hm_cur = self.hm_value |
|---|
| 680 | |
|---|
| 681 | cr.save() |
|---|
| 682 | cr.set_source_rgba(*self.graph["fg_color"]) |
|---|
| 683 | |
|---|
| 684 | for key, pos in self.hmarks_pos.items(): |
|---|
| 685 | if key == 0: |
|---|
| 686 | # first value is 0 |
|---|
| 687 | text = "0" |
|---|
| 688 | elif key == self.hdivisors: |
|---|
| 689 | # last value is max |
|---|
| 690 | text = "%d" % self.max |
|---|
| 691 | else: |
|---|
| 692 | text = "%d" % self.hm_cur |
|---|
| 693 | self.hm_cur += self.hm_value |
|---|
| 694 | |
|---|
| 695 | # move to correct position |
|---|
| 696 | _, _, width, height, _, _ = cr.text_extents(text) |
|---|
| 697 | cr.move_to(pos[0] - width - 4, pos[1] + height / 2.0) |
|---|
| 698 | |
|---|
| 699 | # write text |
|---|
| 700 | cr.show_text(text) |
|---|
| 701 | |
|---|
| 702 | cr.restore() |
|---|
| 703 | |
|---|
| 704 | |
|---|
| 705 | def _write_vmarks_values(self, cr): |
|---|
| 706 | """ |
|---|
| 707 | Write vertical marks labels. (using key number for now). |
|---|
| 708 | """ |
|---|
| 709 | cr.save() |
|---|
| 710 | |
|---|
| 711 | cr.set_source_rgba(*self.graph["fg_color"]) |
|---|
| 712 | |
|---|
| 713 | for key, pos in self.vmarks_pos.items(): |
|---|
| 714 | try: |
|---|
| 715 | text = self.vdiv_labels[key] |
|---|
| 716 | except IndexError: |
|---|
| 717 | text = "NA" # "Not Available" |
|---|
| 718 | |
|---|
| 719 | _, _, width, height, _, _ = cr.text_extents(text) |
|---|
| 720 | |
|---|
| 721 | cr.move_to(pos[0] - (width / 2.0) - self.border_fix, |
|---|
| 722 | pos[1] + 8) |
|---|
| 723 | |
|---|
| 724 | cr.show_text(text) |
|---|
| 725 | |
|---|
| 726 | cr.restore() |
|---|
| 727 | |
|---|
| 728 | |
|---|
| 729 | def _write_axis_labels(self, cr): |
|---|
| 730 | """ |
|---|
| 731 | Write x, y axis labels. |
|---|
| 732 | """ |
|---|
| 733 | if self.ylabel: |
|---|
| 734 | cr.save() |
|---|
| 735 | _, _, width, height, _, _ = cr.text_extents(self.ylabel) |
|---|
| 736 | cr.move_to(height + 2, (self.graph["y_space"] / 2.0) + \ |
|---|
| 737 | width / 2.0 + self.top_reserved + \ |
|---|
| 738 | self.border_width) |
|---|
| 739 | cr.rotate(- 3.14/2) |
|---|
| 740 | cr.show_text(self.ylabel) |
|---|
| 741 | cr.restore() |
|---|
| 742 | |
|---|
| 743 | if self.xlabel: |
|---|
| 744 | cr.save() |
|---|
| 745 | _, _, width, height, _, _ = cr.text_extents(self.xlabel) |
|---|
| 746 | cr.move_to((self.graph["x_space"] / 2.0) - (width / 2.0) + \ |
|---|
| 747 | self.left_reserved, |
|---|
| 748 | self.allocation[3] - height/2.0) |
|---|
| 749 | cr.show_text(self.xlabel) |
|---|
| 750 | cr.restore() |
|---|
| 751 | |
|---|
| 752 | |
|---|
| 753 | def _paint_hover_area(self, cr): |
|---|
| 754 | """ |
|---|
| 755 | Paint area being hovered. |
|---|
| 756 | """ |
|---|
| 757 | start_x = self.left_reserved + (self.hover * self.graph["vdiv"]) |
|---|
| 758 | start_y = self.top_reserved + self.graph["y_space"] |
|---|
| 759 | width = self.graph["vdiv"] + self.border_fix |
|---|
| 760 | height = self.bottom_reserved / 4.0 |
|---|
| 761 | |
|---|
| 762 | cr.save() |
|---|
| 763 | |
|---|
| 764 | cr.rectangle(start_x, start_y, width, height) |
|---|
| 765 | if self.speedup: |
|---|
| 766 | cr.set_source_rgb(*self.graph["fg_black"]) |
|---|
| 767 | else: |
|---|
| 768 | cr.set_source_rgba(*self.graph["fg_color"]) |
|---|
| 769 | cr.fill() |
|---|
| 770 | |
|---|
| 771 | cr.restore() |
|---|
| 772 | |
|---|
| 773 | |
|---|
| 774 | def _paint_selection(self, cr, alpha_threshold=None): |
|---|
| 775 | """ |
|---|
| 776 | Paint selected area. |
|---|
| 777 | """ |
|---|
| 778 | if self.selection == -1: |
|---|
| 779 | return |
|---|
| 780 | |
|---|
| 781 | start_x = self.left_reserved + \ |
|---|
| 782 | (self.selection * self.graph["vdiv"]) + self.border_fix |
|---|
| 783 | start_y = self.top_reserved |
|---|
| 784 | height = self.graph["y_space"] |
|---|
| 785 | width = self.graph["vdiv"] |
|---|
| 786 | |
|---|
| 787 | cr.save() |
|---|
| 788 | |
|---|
| 789 | cr.rectangle(start_x, start_y, width, height) |
|---|
| 790 | |
|---|
| 791 | if self.selection_gradient: # use gradient |
|---|
| 792 | pat = cairo.LinearGradient(start_x, start_y, start_x, height) |
|---|
| 793 | |
|---|
| 794 | bottom_color = self.graph["gradient_sel"][0][:3] |
|---|
| 795 | upper_color = self.graph["gradient_sel"][1][:3] |
|---|
| 796 | |
|---|
| 797 | if not alpha_threshold: |
|---|
| 798 | alpha_threshold = self.graph["selection_alpha_max"] |
|---|
| 799 | |
|---|
| 800 | pat.add_color_stop_rgba(0, bottom_color[0], bottom_color[1], |
|---|
| 801 | bottom_color[2], alpha_threshold) |
|---|
| 802 | pat.add_color_stop_rgba(1, upper_color[0], upper_color[1], |
|---|
| 803 | upper_color[2], alpha_threshold) |
|---|
| 804 | cr.set_source(pat) |
|---|
| 805 | |
|---|
| 806 | else: # use solid color |
|---|
| 807 | color = list(self.graph["bg_selection"]) |
|---|
| 808 | if not alpha_threshold: |
|---|
| 809 | alpha_threshold = self.graph["selection_alpha_max"] |
|---|
| 810 | |
|---|
| 811 | color.extend([alpha_threshold, ]) |
|---|
| 812 | |
|---|
| 813 | cr.set_source_rgba(*color) |
|---|
| 814 | |
|---|
| 815 | cr.fill() |
|---|
| 816 | |
|---|
| 817 | cr.restore() |
|---|
| 818 | |
|---|
| 819 | |
|---|
| 820 | def _progressive_draw_timer(self): |
|---|
| 821 | """ |
|---|
| 822 | This method handles graph animation effect. |
|---|
| 823 | """ |
|---|
| 824 | # check if we competed a line segment |
|---|
| 825 | if self.painting_piece == self.divisors: |
|---|
| 826 | self.painting_piece = 0 |
|---|
| 827 | |
|---|
| 828 | # start to draw a new line segment then =) |
|---|
| 829 | self.cur_point_indx += 1 |
|---|
| 830 | |
|---|
| 831 | # check if we drawn all points in a vertical divisor |
|---|
| 832 | if self.cur_point_indx == len(self.graphpoints[0]): |
|---|
| 833 | |
|---|
| 834 | # start to draw at new vertical divisor |
|---|
| 835 | self.ccount += 1 |
|---|
| 836 | # at it's first point |
|---|
| 837 | self.cur_point_indx = 0 |
|---|
| 838 | |
|---|
| 839 | cr = self.window.cairo_create() |
|---|
| 840 | |
|---|
| 841 | ret = self._draw_by_piece(cr) |
|---|
| 842 | |
|---|
| 843 | # check if we are done |
|---|
| 844 | if not ret: |
|---|
| 845 | print 'Animation completed.' |
|---|
| 846 | #self.anim_timer = -1 |
|---|
| 847 | self.startup_animation = False |
|---|
| 848 | return False |
|---|
| 849 | |
|---|
| 850 | return True |
|---|
| 851 | |
|---|
| 852 | |
|---|
| 853 | def lines_to_draw(self): |
|---|
| 854 | """ |
|---|
| 855 | Returns number of "kind" of lines that will be drawn. |
|---|
| 856 | """ |
|---|
| 857 | if self.line_filter: |
|---|
| 858 | return sum(1 for k, v in self.line_filter.items() if v == True) |
|---|
| 859 | else: |
|---|
| 860 | return self.num_graph_lines |
|---|
| 861 | |
|---|
| 862 | |
|---|
| 863 | def _draw_by_piece(self, cr): |
|---|
| 864 | """ |
|---|
| 865 | Draw graph by pieces to create a nice visual effect for startup or |
|---|
| 866 | when data changes. |
|---|
| 867 | """ |
|---|
| 868 | #cr.set_line_width(2.5) |
|---|
| 869 | cr.set_line_join(cairo.LINE_JOIN_ROUND) |
|---|
| 870 | |
|---|
| 871 | for k in range(self.num_graph_lines): |
|---|
| 872 | |
|---|
| 873 | # check for final point |
|---|
| 874 | if self.ccount == len(self.graph_data): |
|---|
| 875 | # could do a check to see if we are using area graph and then |
|---|
| 876 | # paint the background using a timer. |
|---|
| 877 | |
|---|
| 878 | return False |
|---|
| 879 | |
|---|
| 880 | |
|---|
| 881 | # check if we should draw this line. |
|---|
| 882 | if self.line_filter and not self.line_filter[k]: |
|---|
| 883 | continue |
|---|
| 884 | |
|---|
| 885 | # get previous point |
|---|
| 886 | if self.ccount == 0 and self.cur_point_indx == 0: |
|---|
| 887 | p = self.start_pts[k] |
|---|
| 888 | elif self.ccount != 0 and self.cur_point_indx == 0: |
|---|
| 889 | p = self.graphpoints[self.ccount - 1]\ |
|---|
| 890 | [len(self.graphpoints[0])-1][k] |
|---|
| 891 | else: |
|---|
| 892 | p = self.graphpoints[self.ccount][self.cur_point_indx - 1][k] |
|---|
| 893 | |
|---|
| 894 | # get current point |
|---|
| 895 | cp = self.graphpoints[self.ccount][self.cur_point_indx][k] |
|---|
| 896 | |
|---|
| 897 | cr.save() |
|---|
| 898 | cr.set_source_rgb(*colors[k]) |
|---|
| 899 | |
|---|
| 900 | cr.move_to(*self.cur_point[k]) |
|---|
| 901 | |
|---|
| 902 | # draw a piece of line segment |
|---|
| 903 | cr.rel_line_to((cp[0] - p[0]) / float(self.divisors), |
|---|
| 904 | (cp[1] - p[1]) / float(self.divisors)) |
|---|
| 905 | |
|---|
| 906 | # store current point |
|---|
| 907 | self.cur_point[k] = cr.get_current_point() |
|---|
| 908 | |
|---|
| 909 | # check if we should draw a circle |
|---|
| 910 | if self.draw_arcs_always: |
|---|
| 911 | if self.draw_every_arc: |
|---|
| 912 | if self.painting_piece == (self.divisors - 2): |
|---|
| 913 | cr.arc(cp[0], cp[1], 2, 0, 2 * 3.14) |
|---|
| 914 | cr.fill_preserve() |
|---|
| 915 | |
|---|
| 916 | elif self.cur_point_indx == self.pts_per_div - 1 and \ |
|---|
| 917 | self.painting_piece == (self.divisors - 2): |
|---|
| 918 | |
|---|
| 919 | cr.arc(cp[0], cp[1], 2, 0, 2 * 3.14) |
|---|
| 920 | cr.fill_preserve() |
|---|
| 921 | |
|---|
| 922 | # especial check for arc at startup point |
|---|
| 923 | if self.ccount == 0 and self.draw_arcs_always and \ |
|---|
| 924 | self.cur_point_indx == 0 and self.painting_piece == 0: |
|---|
| 925 | |
|---|
| 926 | cr.move_to(*self.start_pts[k]) |
|---|
| 927 | cr.arc(self.start_pts[k][0], |
|---|
| 928 | self.start_pts[k][1], 2, 0, 2 * 3.14) |
|---|
| 929 | cr.fill_preserve() |
|---|
| 930 | |
|---|
| 931 | cr.stroke() |
|---|
| 932 | |
|---|
| 933 | cr.restore() |
|---|
| 934 | |
|---|
| 935 | self.painting_piece += 1 |
|---|
| 936 | |
|---|
| 937 | return True |
|---|
| 938 | |
|---|
| 939 | |
|---|
| 940 | def _draw_graph(self, cr): |
|---|
| 941 | """ |
|---|
| 942 | Draw graph, connecting points using rel_line_to. |
|---|
| 943 | """ |
|---|
| 944 | # get startup points |
|---|
| 945 | cur_points = { } |
|---|
| 946 | |
|---|
| 947 | for i in range(self.num_graph_lines): |
|---|
| 948 | cur_points[i] = self.start_pts[i] |
|---|
| 949 | |
|---|
| 950 | #cr.set_line_width(2.5) |
|---|
| 951 | cr.set_line_join(cairo.LINE_JOIN_ROUND) |
|---|
| 952 | |
|---|
| 953 | for indx in range(self.num_graph_lines): |
|---|
| 954 | # check if we should draw this line |
|---|
| 955 | if self.line_filter and not self.line_filter[indx]: |
|---|
| 956 | continue |
|---|
| 957 | |
|---|
| 958 | for key, pts in self.graphpoints.items(): |
|---|
| 959 | for pind, pt in enumerate(pts): |
|---|
| 960 | |
|---|
| 961 | # get previous point |
|---|
| 962 | if key == 0 and pind == 0: |
|---|
| 963 | p = cur_points[indx] |
|---|
| 964 | elif key != 0 and pind == 0: |
|---|
| 965 | p = self.graphpoints[key - 1] \ |
|---|
| 966 | [len(self.graphpoints[0]) - 1] \ |
|---|
| 967 | [indx] |
|---|
| 968 | else: |
|---|
| 969 | p = self.graphpoints[key][pind - 1][indx] |
|---|
| 970 | |
|---|
| 971 | # get current point |
|---|
| 972 | cp = self.graphpoints[key][pind][indx] |
|---|
| 973 | |
|---|
| 974 | cr.save() |
|---|
| 975 | cr.set_source_rgb(*colors[indx]) |
|---|
| 976 | |
|---|
| 977 | cr.move_to(*cur_points[indx]) |
|---|
| 978 | |
|---|
| 979 | # draw line |
|---|
| 980 | cr.rel_line_to(cp[0] - p[0], cp[1] - p[1]) |
|---|
| 981 | |
|---|
| 982 | # get new "startup" point |
|---|
| 983 | cur_points[indx] = cr.get_current_point() |
|---|
| 984 | |
|---|
| 985 | # check if we should draw a circle now. |
|---|
| 986 | if self.draw_arcs_always: |
|---|
| 987 | if self.draw_every_arc: |
|---|
| 988 | cr.arc(cp[0], cp[1], 2, 0, 2 * 3.14) |
|---|
| 989 | cr.fill_preserve() |
|---|
| 990 | elif pind == self.pts_per_div - 1: |
|---|
| 991 | cr.arc(cp[0], cp[1], 2, 0, 2 * 3.14) |
|---|
| 992 | cr.fill_preserve() |
|---|
| 993 | |
|---|
| 994 | else: |
|---|
| 995 | if self.draw_every_arc: |
|---|
| 996 | if self.selection == key or \ |
|---|
| 997 | (self.selection == key + 1 and pind == \ |
|---|
| 998 | self.pts_per_div - 1): |
|---|
| 999 | cr.arc(cp[0], cp[1], 2, 0, 2 * 3.14) |
|---|
| 1000 | cr.fill_preserve() |
|---|
| 1001 | |
|---|
| 1002 | elif pind == self.pts_per_div - 1 and \ |
|---|
| 1003 | (self.selection == key or \ |
|---|
| 1004 | (self.selection == key + 1)): |
|---|
| 1005 | |
|---|
| 1006 | cr.arc(cp[0], cp[1], 2, 0, 2 * 3.14) |
|---|
| 1007 | cr.fill_preserve() |
|---|
| 1008 | |
|---|
| 1009 | # especial check for arc at startup point |
|---|
| 1010 | if key == 0 and pind == 0 and (self.selection == 0 or \ |
|---|
| 1011 | self.draw_arcs_always): |
|---|
| 1012 | |
|---|
| 1013 | cr.move_to(*self.start_pts[indx]) |
|---|
| 1014 | cr.arc(self.start_pts[indx][0], |
|---|
| 1015 | self.start_pts[indx][1], 2, 0, 2 * 3.14) |
|---|
| 1016 | cr.fill_preserve() |
|---|
| 1017 | |
|---|
| 1018 | |
|---|
| 1019 | cr.stroke() |
|---|
| 1020 | cr.restore() |
|---|
| 1021 | |
|---|
| 1022 | |
|---|
| 1023 | def _draw_area_graph(self, cr): |
|---|
| 1024 | """ |
|---|
| 1025 | Draw graph, connecting points and filling the area. |
|---|
| 1026 | """ |
|---|
| 1027 | cr.save() |
|---|
| 1028 | cr.set_line_join(cairo.LINE_JOIN_ROUND) |
|---|
| 1029 | |
|---|
| 1030 | # connect the points, go! =) |
|---|
| 1031 | for indx, ini_p in enumerate(self.start_pts): |
|---|
| 1032 | if self.line_filter and not self.line_filter[indx]: |
|---|
| 1033 | continue |
|---|
| 1034 | |
|---|
| 1035 | cr.new_path() |
|---|
| 1036 | cr.move_to(*ini_p) |
|---|
| 1037 | |
|---|
| 1038 | for key, pts in self.graphpoints.items(): |
|---|
| 1039 | for p in pts: |
|---|
| 1040 | cr.line_to(*p[indx]) |
|---|
| 1041 | |
|---|
| 1042 | x = cr.get_current_point()[0] |
|---|
| 1043 | |
|---|
| 1044 | # stroke every lines. |
|---|
| 1045 | cr.set_source_rgb(*colors[indx]) |
|---|
| 1046 | cr.stroke_preserve() |
|---|
| 1047 | |
|---|
| 1048 | # connect end with start point. |
|---|
| 1049 | cr.line_to(x, self.graph["y_space"] + self.top_reserved) |
|---|
| 1050 | cr.line_to(self.left_reserved + self.border_fix, |
|---|
| 1051 | self.graph["y_space"] + self.top_reserved) |
|---|
| 1052 | cr.close_path() |
|---|
| 1053 | |
|---|
| 1054 | # then set color, and fill. |
|---|
| 1055 | cr.set_source_rgba(colors[indx][0], colors[indx][1], |
|---|
| 1056 | colors[indx][2], 0.5) |
|---|
| 1057 | cr.fill() |
|---|
| 1058 | |
|---|
| 1059 | cr.restore() |
|---|
| 1060 | |
|---|
| 1061 | |
|---|
| 1062 | def _draw_balloon(self, cr, text, color, pointing_pt): |
|---|
| 1063 | """ |
|---|
| 1064 | Draws a balloon with some text pointing to pointing_pt. |
|---|
| 1065 | """ |
|---|
| 1066 | # widget total size |
|---|
| 1067 | t_width = self.allocation[2] |
|---|
| 1068 | t_height = self.allocation[3] |
|---|
| 1069 | |
|---|
| 1070 | # calculate balloon size |
|---|
| 1071 | _, _, width, height, _, _ = cr.text_extents(text) |
|---|
| 1072 | bwidth = width + 8 |
|---|
| 1073 | bheight = height + 6 |
|---|
| 1074 | |
|---|
| 1075 | dir_x = 5 |
|---|
| 1076 | dir_y = 8 |
|---|
| 1077 | w = bwidth |
|---|
| 1078 | h = bheight |
|---|
| 1079 | |
|---|
| 1080 | control = { (True, True): (dir_x, dir_y, w, h, -2, 5, |
|---|
| 1081 | 8, 8 + height), |
|---|
| 1082 | (True, False): (dir_x, -dir_y, w, -h, 2, 5, |
|---|
| 1083 | 8, -height), |
|---|
| 1084 | (False, True): (-dir_x, dir_y, -w, h, -2, -5, |
|---|
| 1085 | -width - 10, height + 8), |
|---|
| 1086 | (False, False): (-dir_x, -dir_y, -w, -h, 2, -5, |
|---|
| 1087 | -width -10, -8) |
|---|
| 1088 | } |
|---|
| 1089 | |
|---|
| 1090 | coords = control[(pointing_pt[0] < width, |
|---|
| 1091 | pointing_pt[1] - (bheight + 4) < 0)] |
|---|
| 1092 | |
|---|
| 1093 | # draw balloon |
|---|
| 1094 | cr.save() |
|---|
| 1095 | cr.new_path() |
|---|
| 1096 | |
|---|
| 1097 | cr.move_to(*pointing_pt) |
|---|
| 1098 | cr.rel_line_to(coords[0], coords[1]) |
|---|
| 1099 | cr.rel_line_to(0, coords[3] + coords[4]) |
|---|
| 1100 | cr.rel_line_to(coords[2], 0) |
|---|
| 1101 | cr.rel_line_to(0, - coords[3] + coords[4]) |
|---|
| 1102 | cr.rel_line_to(- coords[2] + coords[5], 0) |
|---|
| 1103 | |
|---|
| 1104 | # fill balloon |
|---|
| 1105 | cr.set_source_rgba(color[0], color[1], color[2], 0.5) |
|---|
| 1106 | cr.fill() |
|---|
| 1107 | cr.restore() |
|---|
| 1108 | |
|---|
| 1109 | # write text |
|---|
| 1110 | cr.move_to(pointing_pt[0] + coords[6], pointing_pt[1] + coords[7]) |
|---|
| 1111 | cr.show_text(text) |
|---|
| 1112 | |
|---|
| 1113 | |
|---|
| 1114 | def _update_alpha_ts(self): |
|---|
| 1115 | """ |
|---|
| 1116 | Update alpha to be used in selection painting. |
|---|
| 1117 | """ |
|---|
| 1118 | self.alpha_ts += 0.05 |
|---|
| 1119 | |
|---|
| 1120 | if self.alpha_ts > self.graph["selection_alpha_max"]: |
|---|
| 1121 | self.selection_painting = False |
|---|
| 1122 | self.alpha_ts = 0 |
|---|
| 1123 | |
|---|
| 1124 | self.queue_draw() |
|---|
| 1125 | |
|---|
| 1126 | return False |
|---|
| 1127 | |
|---|
| 1128 | self.queue_draw() |
|---|
| 1129 | |
|---|
| 1130 | return True |
|---|
| 1131 | |
|---|
| 1132 | |
|---|
| 1133 | def _setup_balloons(self): |
|---|
| 1134 | """ |
|---|
| 1135 | Get bound points for current selection. |
|---|
| 1136 | """ |
|---|
| 1137 | self.balloons = { } |
|---|
| 1138 | if not self.show_balloons: |
|---|
| 1139 | # Nothing to do here, balloons disabled. |
|---|
| 1140 | return |
|---|
| 1141 | |
|---|
| 1142 | # ToDo: Needs fixing to handle correctly coincident points |
|---|
| 1143 | |
|---|
| 1144 | # point position needs to be calculated inside balloon creation! |
|---|
| 1145 | if self.selection != -1: |
|---|
| 1146 | count = 0 |
|---|
| 1147 | for pts in self.graphpoints[self.selection]: |
|---|
| 1148 | |
|---|
| 1149 | for indx, pt in enumerate(pts): |
|---|
| 1150 | if self.line_filter and not self.line_filter[indx]: |
|---|
| 1151 | continue |
|---|
| 1152 | |
|---|
| 1153 | if not self.draw_every_arc and \ |
|---|
| 1154 | count != self.pts_per_div - 1: |
|---|
| 1155 | continue |
|---|
| 1156 | |
|---|
| 1157 | color = colors[indx] |
|---|
| 1158 | value = self.graph_data[self.selection][count][indx] |
|---|
| 1159 | self.balloons[pt] = (value, color) |
|---|
| 1160 | |
|---|
| 1161 | count += 1 |
|---|
| 1162 | |
|---|
| 1163 | # get left boundary points |
|---|
| 1164 | lines = len(self.graphpoints[self.selection][0]) |
|---|
| 1165 | points_per_div = len(self.graphpoints[self.selection]) |
|---|
| 1166 | for indx in range(lines): |
|---|
| 1167 | if self.line_filter and not self.line_filter[indx]: |
|---|
| 1168 | continue |
|---|
| 1169 | |
|---|
| 1170 | color = colors[indx] |
|---|
| 1171 | |
|---|
| 1172 | # startup point |
|---|
| 1173 | if self.selection == 0: |
|---|
| 1174 | pt = self.start_pts[indx] |
|---|
| 1175 | value = self.start_pts_data[indx] |
|---|
| 1176 | # somewhere else in the graph |
|---|
| 1177 | else: |
|---|
| 1178 | pt = self.graphpoints[self.selection - 1] \ |
|---|
| 1179 | [points_per_div - 1][indx] |
|---|
| 1180 | value = self.graph_data[self.selection - 1] \ |
|---|
| 1181 | [points_per_div - 1][indx] |
|---|
| 1182 | |
|---|
| 1183 | self.balloons[pt] = (value, color) |
|---|
| 1184 | |
|---|
| 1185 | |
|---|
| 1186 | def do_realize(self): |
|---|
| 1187 | """ |
|---|
| 1188 | Setup widget and calls methods for calculating everything needed |
|---|
| 1189 | to draw graph. |
|---|
| 1190 | """ |
|---|
| 1191 | self.set_flags(self.flags() | gtk.REALIZED | gtk.CAN_FOCUS) |
|---|
| 1192 | |
|---|
| 1193 | self.window = gtk.gdk.Window(self.get_parent_window(), |
|---|
| 1194 | width=self.allocation.width, |
|---|
| 1195 | height=self.allocation.height, |
|---|
| 1196 | window_type=gtk.gdk.WINDOW_CHILD, |
|---|
| 1197 | wclass=gtk.gdk.INPUT_OUTPUT, |
|---|
| 1198 | event_mask=self.get_events() | |
|---|
| 1199 | gtk.gdk.EXPOSURE_MASK | |
|---|
| 1200 | gtk.gdk.BUTTON_PRESS_MASK | |
|---|
| 1201 | gtk.gdk.BUTTON_RELEASE_MASK ) |
|---|
| 1202 | |
|---|
| 1203 | self.window.set_user_data(self) |
|---|
| 1204 | self.style.attach(self.window) |
|---|
| 1205 | self.style.set_background(self.window, gtk.STATE_NORMAL) |
|---|
| 1206 | self.window.move_resize(*self.allocation) |
|---|
| 1207 | |
|---|
| 1208 | self.startup_animation = self.startup_animation |
|---|
| 1209 | |
|---|
| 1210 | self._calculate_border_reserved() |
|---|
| 1211 | self._calculate_graph_alloc() |
|---|
| 1212 | self._calculate_graph_points() |
|---|
| 1213 | |
|---|
| 1214 | |
|---|
| 1215 | def do_unrealize(self): |
|---|
| 1216 | self.window.set_user_data(None) |
|---|
| 1217 | |
|---|
| 1218 | |
|---|
| 1219 | def do_size_request(self, requisition): |
|---|
| 1220 | """ |
|---|
| 1221 | Sets an acceptable minimal size. |
|---|
| 1222 | """ |
|---|
| 1223 | # minimal size |
|---|
| 1224 | #requisition.width = 70 * 3.2 |
|---|
| 1225 | #requisition.height = 70 |
|---|
| 1226 | |
|---|
| 1227 | # optimal size |
|---|
| 1228 | width, _ = gtk.gdk.get_default_root_window().get_size() |
|---|
| 1229 | requisition.width = (width * 3) / 4 |
|---|
| 1230 | requisition.height = 140 |
|---|
| 1231 | |
|---|
| 1232 | |
|---|
| 1233 | def do_size_allocate(self, allocation): |
|---|
| 1234 | """ |
|---|
| 1235 | Handles size allocation, calculate new points positions and |
|---|
| 1236 | graph dimensions. |
|---|
| 1237 | """ |
|---|
| 1238 | self.allocation = allocation |
|---|
| 1239 | |
|---|
| 1240 | if self.flags() & gtk.REALIZED: |
|---|
| 1241 | self.window.move_resize(*allocation) |
|---|
| 1242 | |
|---|
| 1243 | self._calculate_graph_alloc() |
|---|
| 1244 | self._calculate_graph_points() |
|---|
| 1245 | self._setup_balloons() |
|---|
| 1246 | |
|---|
| 1247 | |
|---|
| 1248 | def do_motion_notify_event(self, event): |
|---|
| 1249 | """ |
|---|
| 1250 | Handles mouse motion. |
|---|
| 1251 | """ |
|---|
| 1252 | prev_status = self.hover |
|---|
| 1253 | |
|---|
| 1254 | if self.top_reserved <= event.y <= self.graph["y_space"] + \ |
|---|
| 1255 | self.top_reserved and self.left_reserved <= event.x <= \ |
|---|
| 1256 | self.graph["x_space"] + self.left_reserved: |
|---|
| 1257 | |
|---|
| 1258 | new_status = int((event.x - self.left_reserved) / \ |
|---|
| 1259 | self.graph["vdiv"]) |
|---|
| 1260 | |
|---|
| 1261 | if new_status >= len(self.graph_data): |
|---|
| 1262 | return |
|---|
| 1263 | |
|---|
| 1264 | self.hover = new_status |
|---|
| 1265 | else: |
|---|
| 1266 | self.hover = -1 |
|---|
| 1267 | |
|---|
| 1268 | if prev_status != self.hover: |
|---|
| 1269 | self.queue_draw() |
|---|
| 1270 | |
|---|
| 1271 | |
|---|
| 1272 | def do_button_release_event(self, event): |
|---|
| 1273 | """ |
|---|
| 1274 | Handles mouse button release. |
|---|
| 1275 | """ |
|---|
| 1276 | if event.button == 1: |
|---|
| 1277 | prev_state = self.selection |
|---|
| 1278 | self.balloons = { } |
|---|
| 1279 | |
|---|
| 1280 | if self.hover != -1: |
|---|
| 1281 | if self.selection == self.hover: |
|---|
| 1282 | self.selection = -1 |
|---|
| 1283 | else: |
|---|
| 1284 | self.selection = self.hover |
|---|
| 1285 | |
|---|
| 1286 | if prev_state != self.selection: |
|---|
| 1287 | self.selection_timer = -1 |
|---|
| 1288 | gobject.source_remove(self.selection_timer) |
|---|
| 1289 | self.queue_draw() |
|---|
| 1290 | |
|---|
| 1291 | |
|---|
| 1292 | def do_expose_event(self, event): |
|---|
| 1293 | """ |
|---|
| 1294 | Draws graph. |
|---|
| 1295 | """ |
|---|
| 1296 | cr = self.window.cairo_create() |
|---|
| 1297 | cr.rectangle(*event.area) |
|---|
| 1298 | cr.clip() |
|---|
| 1299 | |
|---|
| 1300 | # white background |
|---|
| 1301 | cr.save() |
|---|
| 1302 | cr.rectangle(*event.area) |
|---|
| 1303 | cr.set_source_rgb(1, 1, 1) |
|---|
| 1304 | cr.fill() |
|---|
| 1305 | cr.restore() |
|---|
| 1306 | |
|---|
| 1307 | # graph background |
|---|
| 1308 | if self.gradient_fill: |
|---|
| 1309 | self._gradient_fill(cr) |
|---|
| 1310 | else: |
|---|
| 1311 | self._solid_fill(cr) |
|---|
| 1312 | |
|---|
| 1313 | # graph base, axis |
|---|
| 1314 | self._draw_graph_base(cr) |
|---|
| 1315 | |
|---|
| 1316 | # write horizontal marks labels |
|---|
| 1317 | self._write_hmarks_values(cr) |
|---|
| 1318 | |
|---|
| 1319 | # write vertical marks labels |
|---|
| 1320 | self._write_vmarks_values(cr) |
|---|
| 1321 | |
|---|
| 1322 | # write axis labels |
|---|
| 1323 | self._write_axis_labels(cr) |
|---|
| 1324 | |
|---|
| 1325 | # paint selection |
|---|
| 1326 | if self.selection_painting: |
|---|
| 1327 | self._paint_selection(cr, self.alpha_ts) |
|---|
| 1328 | else: |
|---|
| 1329 | if self.selection != -1: |
|---|
| 1330 | if self.selection_timer == -1 and self.selection_effect: |
|---|
| 1331 | self.selection_timer = gobject.timeout_add(20, |
|---|
| 1332 | self._update_alpha_ts) |
|---|
| 1333 | self.selection_painting = True |
|---|
| 1334 | else: |
|---|
| 1335 | self._setup_balloons() |
|---|
| 1336 | self._paint_selection(cr) |
|---|
| 1337 | |
|---|
| 1338 | # paint area being hovered |
|---|
| 1339 | if -1 < self.hover < len(self.graph_data): |
|---|
| 1340 | self._paint_hover_area(cr) |
|---|
| 1341 | |
|---|
| 1342 | # draw graph |
|---|
| 1343 | if self.startup_animation and self.anim_timer == -1: |
|---|
| 1344 | # start animation |
|---|
| 1345 | self.anim_timer = gobject.timeout_add(20, |
|---|
| 1346 | self._progressive_draw_timer) |
|---|
| 1347 | elif not self.startup_animation: |
|---|
| 1348 | if self.graph_type == AREAGRAPH: |
|---|
| 1349 | self._draw_area_graph(cr) |
|---|
| 1350 | return |
|---|
| 1351 | else: |
|---|
| 1352 | self._draw_graph(cr) |
|---|
| 1353 | |
|---|
| 1354 | # draw balloons |
|---|
| 1355 | for pt, props in self.balloons.items(): |
|---|
| 1356 | self._draw_balloon(cr, "%d" % props[0], props[1], pt) |
|---|
| 1357 | |
|---|
| 1358 | |
|---|
| 1359 | # Properties |
|---|
| 1360 | graph_type = property(get_graph_type, set_graph_type) |
|---|
| 1361 | startup_animation = property(get_start_effect, set_start_effect) |
|---|
| 1362 | line_filter = property(get_active_filter, set_active_filter) |
|---|
| 1363 | alpha_ts = property(get_alpha_threshold, set_alpha_threshold) |
|---|
| 1364 | hdivisors = property(get_hdivisors, set_hdivisors) |
|---|
| 1365 | divisors = property(get_divisors, set_divisors) |
|---|
| 1366 | |
|---|
| 1367 | |
|---|
| 1368 | gobject.type_register(InteractiveGraph) |
|---|
| 1369 | |
|---|