1 | /* -*- C++ -*- |
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2 | * |
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3 | * This file is a part of LEMON, a generic C++ optimization library |
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4 | * |
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5 | * Copyright (C) 2003-2006 |
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6 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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7 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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8 | * |
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9 | * Permission to use, modify and distribute this software is granted |
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10 | * provided that this copyright notice appears in all copies. For |
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11 | * precise terms see the accompanying LICENSE file. |
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12 | * |
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13 | * This software is provided "AS IS" with no warranty of any kind, |
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14 | * express or implied, and with no claim as to its suitability for any |
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15 | * purpose. |
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16 | * |
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17 | */ |
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18 | |
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19 | #include "graph_displayer_canvas.h" |
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20 | #include <cmath> |
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21 | |
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22 | |
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23 | bool GraphDisplayerCanvas::on_expose_event(GdkEventExpose *event) |
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24 | { |
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25 | Gnome::Canvas::CanvasAA::on_expose_event(event); |
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26 | //usleep(10000); |
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27 | //rezoom(); |
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28 | return true; |
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29 | } |
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30 | |
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31 | void GraphDisplayerCanvas::changeEditorialTool(int newtool) |
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32 | { |
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33 | if(actual_tool!=newtool) |
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34 | { |
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35 | |
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36 | actual_handler.disconnect(); |
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37 | |
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38 | switch(actual_tool) |
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39 | { |
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40 | case CREATE_EDGE: |
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41 | { |
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42 | GdkEvent * generated=new GdkEvent(); |
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43 | generated->type=GDK_BUTTON_RELEASE; |
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44 | generated->button.button=3; |
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45 | createEdgeEventHandler(generated); |
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46 | break; |
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47 | } |
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48 | case MAP_EDIT: |
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49 | { |
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50 | break; |
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51 | } |
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52 | default: |
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53 | break; |
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54 | } |
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55 | |
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56 | active_item=NULL; |
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57 | target_item=NULL; |
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58 | active_edge=INVALID; |
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59 | active_node=INVALID; |
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60 | |
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61 | |
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62 | actual_tool=newtool; |
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63 | |
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64 | switch(newtool) |
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65 | { |
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66 | case MOVE: |
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67 | actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::moveEventHandler), false); |
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68 | break; |
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69 | |
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70 | case CREATE_NODE: |
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71 | actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::createNodeEventHandler), false); |
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72 | break; |
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73 | |
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74 | case CREATE_EDGE: |
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75 | actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::createEdgeEventHandler), false); |
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76 | break; |
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77 | |
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78 | case ERASER: |
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79 | actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::eraserEventHandler), false); |
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80 | break; |
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81 | |
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82 | case MAP_EDIT: |
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83 | grab_focus(); |
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84 | actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::mapEditEventHandler), false); |
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85 | break; |
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86 | |
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87 | default: |
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88 | break; |
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89 | } |
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90 | } |
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91 | } |
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92 | |
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93 | int GraphDisplayerCanvas::getActualTool() |
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94 | { |
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95 | return actual_tool; |
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96 | } |
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97 | |
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98 | bool GraphDisplayerCanvas::moveEventHandler(GdkEvent* e) |
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99 | { |
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100 | static Gnome::Canvas::Text *coord_text = 0; |
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101 | switch(e->type) |
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102 | { |
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103 | case GDK_BUTTON_PRESS: |
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104 | //we mark the location of the event to be able to calculate parameters of dragging |
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105 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
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106 | |
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107 | active_item=(get_item_at(clicked_x, clicked_y)); |
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108 | active_node=INVALID; |
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109 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
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110 | { |
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111 | if(nodesmap[i]==active_item) |
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112 | { |
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113 | active_node=i; |
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114 | } |
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115 | } |
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116 | isbutton=e->button.button; |
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117 | break; |
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118 | case GDK_BUTTON_RELEASE: |
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119 | if (coord_text) |
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120 | { |
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121 | delete coord_text; |
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122 | coord_text = 0; |
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123 | } |
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124 | isbutton=0; |
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125 | active_item=NULL; |
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126 | active_node=INVALID; |
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127 | break; |
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128 | case GDK_MOTION_NOTIFY: |
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129 | //we only have to do sg. if the mouse button is pressed AND the click was on a node that was found in the set of nodes |
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130 | if(active_node!=INVALID) |
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131 | { |
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132 | (mytab.mapstorage).modified = true; |
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133 | |
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134 | //new coordinates will be the old values, |
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135 | //because the item will be moved to the |
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136 | //new coordinate therefore the new movement |
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137 | //has to be calculated from here |
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138 | |
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139 | double new_x, new_y; |
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140 | |
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141 | window_to_world (e->motion.x, e->motion.y, new_x, new_y); |
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142 | |
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143 | double dx=new_x-clicked_x; |
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144 | double dy=new_y-clicked_y; |
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145 | |
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146 | moveNode(dx, dy); |
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147 | |
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148 | clicked_x=new_x; |
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149 | clicked_y=new_y; |
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150 | |
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151 | // reposition the coordinates text |
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152 | std::ostringstream ostr; |
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153 | ostr << "(" << |
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154 | (mytab.mapstorage).coords[active_node].x << ", " << |
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155 | (mytab.mapstorage).coords[active_node].y << ")"; |
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156 | double radius = |
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157 | (nodesmap[active_node]->property_x2().get_value() - |
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158 | nodesmap[active_node]->property_x1().get_value()) / 2.0; |
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159 | if (coord_text) |
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160 | { |
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161 | coord_text->property_text().set_value(ostr.str()); |
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162 | coord_text->property_x().set_value((mytab.mapstorage).coords[active_node].x + |
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163 | radius); |
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164 | coord_text->property_y().set_value((mytab.mapstorage).coords[active_node].y - |
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165 | radius); |
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166 | } |
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167 | else |
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168 | { |
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169 | coord_text = new Gnome::Canvas::Text( |
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170 | displayed_graph, |
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171 | (mytab.mapstorage).coords[active_node].x + radius, |
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172 | (mytab.mapstorage).coords[active_node].y - radius, |
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173 | ostr.str()); |
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174 | coord_text->property_fill_color().set_value("black"); |
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175 | coord_text->property_anchor().set_value(Gtk::ANCHOR_SOUTH_WEST); |
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176 | } |
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177 | |
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178 | |
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179 | } |
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180 | default: break; |
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181 | } |
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182 | |
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183 | return false; |
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184 | } |
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185 | |
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186 | XY GraphDisplayerCanvas::calcArrowPos(XY moved_node_1, XY moved_node_2, XY fix_node, XY old_arrow_pos, int move_code) |
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187 | { |
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188 | switch(move_code) |
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189 | { |
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190 | case 1: |
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191 | return XY((moved_node_2.x + fix_node.x) / 2.0, (moved_node_2.y + fix_node.y) / 2.0); |
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192 | break; |
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193 | case 2: |
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194 | return old_arrow_pos; |
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195 | break; |
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196 | case 3: |
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197 | { |
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198 | ////////////////////////////////////////////////////////////////////////////////////////////////////// |
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199 | /////////// keeps shape-with scalar multiplication - version 2. |
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200 | ////////////////////////////////////////////////////////////////////////////////////////////////////// |
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201 | |
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202 | //old vector from one to the other node - a |
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203 | XY a_v(moved_node_1.x-fix_node.x,moved_node_1.y-fix_node.y); |
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204 | //new vector from one to the other node - b |
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205 | XY b_v(moved_node_2.x-fix_node.x,moved_node_2.y-fix_node.y); |
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206 | |
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207 | double absa=sqrt(a_v.normSquare()); |
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208 | double absb=sqrt(b_v.normSquare()); |
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209 | |
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210 | if ((absa == 0.0) || (absb == 0.0)) |
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211 | { |
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212 | return old_arrow_pos; |
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213 | } |
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214 | else |
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215 | { |
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216 | //old vector from one node to the breakpoint - c |
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217 | XY c_v(old_arrow_pos.x-fix_node.x,old_arrow_pos.y-fix_node.y); |
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218 | |
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219 | //unit vector with the same direction to a_v |
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220 | XY a_v_u(a_v.x/absa,a_v.y/absa); |
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221 | |
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222 | //normal vector of unit vector with the same direction to a_v |
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223 | XY a_v_u_n(((-1)*a_v_u.y),a_v_u.x); |
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224 | |
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225 | //unit vector with the same direction to b_v |
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226 | XY b_v_u(b_v.x/absb,b_v.y/absb); |
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227 | |
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228 | //normal vector of unit vector with the same direction to b_v |
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229 | XY b_v_u_n(((-1)*b_v_u.y),b_v_u.x); |
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230 | |
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231 | //vector c in a_v_u and a_v_u_n co-ordinate system |
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232 | XY c_a(c_v*a_v_u,c_v*a_v_u_n); |
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233 | |
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234 | //new vector from one node to the breakpoint - d - we have to calculate this one |
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235 | XY d_v=absb/absa*(c_a.x*b_v_u+c_a.y*b_v_u_n); |
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236 | |
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237 | return XY(d_v.x+fix_node.x,d_v.y+fix_node.y); |
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238 | } |
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239 | break; |
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240 | } |
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241 | default: |
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242 | break; |
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243 | } |
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244 | } |
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245 | |
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246 | |
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247 | bool GraphDisplayerCanvas::createNodeEventHandler(GdkEvent* e) |
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248 | { |
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249 | switch(e->type) |
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250 | { |
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251 | //move the new node |
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252 | case GDK_MOTION_NOTIFY: |
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253 | { |
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254 | GdkEvent * generated=new GdkEvent(); |
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255 | generated->motion.x=e->motion.x; |
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256 | generated->motion.y=e->motion.y; |
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257 | generated->type=GDK_MOTION_NOTIFY; |
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258 | moveEventHandler(generated); |
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259 | break; |
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260 | } |
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261 | |
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262 | case GDK_BUTTON_RELEASE: |
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263 | (mytab.mapstorage).modified = true; |
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264 | |
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265 | is_drawn=true; |
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266 | |
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267 | isbutton=1; |
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268 | |
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269 | active_node=(mytab.mapstorage).graph.addNode(); |
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270 | |
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271 | //initiating values corresponding to new node in maps |
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272 | |
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273 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
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274 | |
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275 | // update coordinates |
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276 | (mytab.mapstorage).coords.set(active_node, XY(clicked_x, clicked_y)); |
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277 | |
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278 | // update all other maps |
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279 | for (std::map<std::string, Graph::NodeMap<double>*>::const_iterator it = |
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280 | (mytab.mapstorage).nodemap_storage.begin(); it != |
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281 | (mytab.mapstorage).nodemap_storage.end(); ++it) |
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282 | { |
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283 | if ((it->first != "coordinates_x") && |
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284 | (it->first != "coordinates_y")) |
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285 | { |
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286 | (*(it->second))[active_node] = |
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287 | (mytab.mapstorage).nodemap_default[it->first]; |
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288 | } |
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289 | } |
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290 | // increment the id map's default value |
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291 | (mytab.mapstorage).nodemap_default["label"] += 1.0; |
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292 | |
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293 | nodesmap[active_node]=new Gnome::Canvas::Ellipse(displayed_graph, |
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294 | clicked_x-20, clicked_y-20, clicked_x+20, clicked_y+20); |
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295 | active_item=(Gnome::Canvas::Item *)(nodesmap[active_node]); |
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296 | *(nodesmap[active_node]) << |
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297 | Gnome::Canvas::Properties::fill_color("blue"); |
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298 | *(nodesmap[active_node]) << |
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299 | Gnome::Canvas::Properties::outline_color("black"); |
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300 | active_item->raise_to_top(); |
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301 | |
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302 | (nodesmap[active_node])->show(); |
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303 | |
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304 | nodetextmap[active_node]=new Gnome::Canvas::Text(displayed_graph, |
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305 | clicked_x+node_property_defaults[N_RADIUS]+5, |
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306 | clicked_y+node_property_defaults[N_RADIUS]+5, ""); |
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307 | nodetextmap[active_node]->property_fill_color().set_value("darkblue"); |
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308 | nodetextmap[active_node]->raise_to_top(); |
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309 | |
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310 | // mapwin.updateNode(active_node); |
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311 | propertyUpdate(active_node); |
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312 | |
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313 | isbutton=0; |
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314 | target_item=NULL; |
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315 | active_item=NULL; |
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316 | active_node=INVALID; |
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317 | break; |
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318 | default: |
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319 | break; |
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320 | } |
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321 | return false; |
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322 | } |
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323 | |
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324 | bool GraphDisplayerCanvas::createEdgeEventHandler(GdkEvent* e) |
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325 | { |
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326 | switch(e->type) |
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327 | { |
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328 | case GDK_BUTTON_PRESS: |
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329 | //in edge creation right button has special meaning |
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330 | if(e->button.button!=3) |
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331 | { |
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332 | //there is not yet selected node |
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333 | if(active_node==INVALID) |
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334 | { |
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335 | //we mark the location of the event to be able to calculate parameters of dragging |
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336 | |
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337 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
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338 | |
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339 | active_item=(get_item_at(clicked_x, clicked_y)); |
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340 | active_node=INVALID; |
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341 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
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342 | { |
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343 | if(nodesmap[i]==active_item) |
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344 | { |
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345 | active_node=i; |
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346 | } |
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347 | } |
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348 | //the clicked item is really a node |
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349 | if(active_node!=INVALID) |
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350 | { |
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351 | *(nodesmap[active_node]) << Gnome::Canvas::Properties::fill_color("red"); |
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352 | isbutton=1; |
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353 | } |
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354 | //clicked item was not a node. It could be e.g. edge. |
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355 | else |
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356 | { |
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357 | active_item=NULL; |
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358 | } |
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359 | } |
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360 | //we only have to do sg. if the mouse button |
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361 | // is pressed already once AND the click was |
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362 | // on a node that was found in the set of |
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363 | //nodes, and now we only search for the second |
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364 | //node |
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365 | else |
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366 | { |
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367 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
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368 | target_item=(get_item_at(clicked_x, clicked_y)); |
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369 | Node target_node=INVALID; |
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370 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
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371 | { |
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372 | if(nodesmap[i]==target_item) |
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373 | { |
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374 | target_node=i; |
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375 | } |
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376 | } |
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377 | //the clicked item is a node, the edge can be drawn |
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378 | if(target_node!=INVALID) |
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379 | { |
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380 | (mytab.mapstorage).modified = true; |
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381 | |
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382 | *(nodesmap[target_node]) << |
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383 | Gnome::Canvas::Properties::fill_color("red"); |
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384 | |
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385 | //creating new edge |
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386 | active_edge=(mytab.mapstorage).graph.addEdge(active_node, |
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387 | target_node); |
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388 | |
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389 | // update maps |
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390 | for (std::map<std::string, |
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391 | Graph::EdgeMap<double>*>::const_iterator it = |
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392 | (mytab.mapstorage).edgemap_storage.begin(); it != |
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393 | (mytab.mapstorage).edgemap_storage.end(); ++it) |
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394 | { |
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395 | (*(it->second))[active_edge] = |
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396 | (mytab.mapstorage).edgemap_default[it->first]; |
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397 | } |
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398 | // increment the id map's default value |
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399 | (mytab.mapstorage).edgemap_default["label"] += 1.0; |
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400 | |
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401 | if(target_node!=active_node) |
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402 | { |
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403 | // set the coordinates of the arrow on the new edge |
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404 | MapStorage& ms = mytab.mapstorage; |
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405 | ms.arrow_pos.set(active_edge, |
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406 | (ms.coords[ms.graph.source(active_edge)] + |
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407 | ms.coords[ms.graph.target(active_edge)])/ 2.0); |
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408 | |
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409 | //drawing new edge |
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410 | edgesmap[active_edge]=new BrokenEdge(displayed_graph, active_edge, |
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411 | *this); |
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412 | } |
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413 | else |
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414 | { |
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415 | // set the coordinates of the arrow on the new edge |
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416 | MapStorage& ms = mytab.mapstorage; |
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417 | ms.arrow_pos.set(active_edge, |
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418 | (ms.coords[ms.graph.source(active_edge)] + |
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419 | XY(0.0, 80.0))); |
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420 | |
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421 | //drawing new edge |
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422 | edgesmap[active_edge]=new LoopEdge(displayed_graph, active_edge, |
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423 | *this); |
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424 | } |
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425 | |
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426 | //initializing edge-text as well, to empty string |
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427 | XY text_pos=mytab.mapstorage.arrow_pos[active_edge]; |
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428 | text_pos+=(XY(10,10)); |
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429 | |
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430 | edgetextmap[active_edge]=new Gnome::Canvas::Text(displayed_graph, |
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431 | text_pos.x, text_pos.y, ""); |
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432 | edgetextmap[active_edge]->property_fill_color().set_value( |
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433 | "darkgreen"); |
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434 | edgetextmap[active_edge]->raise_to_top(); |
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435 | |
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436 | propertyUpdate(active_edge); |
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437 | } |
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438 | //clicked item was not a node. it could be an e.g. edge. we do not |
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439 | //deal with it furthermore. |
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440 | else |
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441 | { |
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442 | target_item=NULL; |
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443 | } |
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444 | } |
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445 | } |
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446 | break; |
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447 | case GDK_BUTTON_RELEASE: |
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448 | isbutton=0; |
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449 | //we clear settings in two cases |
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450 | //1: the edge is ready (target_item has valid value) |
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451 | //2: the edge creation is cancelled with right button |
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452 | if((target_item)||(e->button.button==3)) |
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453 | { |
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454 | if(active_item) |
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455 | { |
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456 | *active_item << Gnome::Canvas::Properties::fill_color("blue"); |
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457 | active_item=NULL; |
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458 | } |
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459 | if(target_item) |
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460 | { |
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461 | *target_item << Gnome::Canvas::Properties::fill_color("blue"); |
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462 | target_item=NULL; |
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463 | } |
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464 | active_node=INVALID; |
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465 | active_edge=INVALID; |
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466 | } |
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467 | break; |
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468 | default: |
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469 | break; |
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470 | } |
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471 | return false; |
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472 | } |
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473 | |
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474 | bool GraphDisplayerCanvas::eraserEventHandler(GdkEvent* e) |
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475 | { |
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476 | switch(e->type) |
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477 | { |
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478 | case GDK_BUTTON_PRESS: |
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479 | //finding the clicked items |
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480 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
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481 | active_item=(get_item_at(clicked_x, clicked_y)); |
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482 | active_node=INVALID; |
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483 | active_edge=INVALID; |
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484 | //was it a node? |
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485 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
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486 | { |
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487 | if(nodesmap[i]==active_item) |
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488 | { |
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489 | active_node=i; |
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490 | } |
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491 | } |
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492 | //or was it an edge? |
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493 | if(active_node==INVALID) |
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494 | { |
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495 | for (EdgeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
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496 | { |
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497 | if(edgesmap[i]->getLine()==active_item) |
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498 | { |
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499 | active_edge=i; |
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500 | } |
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501 | } |
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502 | } |
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503 | |
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504 | // return if the clicked object is neither an edge nor a node |
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505 | if (active_edge == INVALID) return false; |
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506 | |
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507 | //recolor activated item |
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508 | if(active_item) |
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509 | { |
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510 | *active_item << Gnome::Canvas::Properties::fill_color("red"); |
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511 | } |
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512 | break; |
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513 | |
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514 | case GDK_BUTTON_RELEASE: |
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515 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
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516 | if(active_item) |
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517 | { |
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518 | //the cursor was not moved since pressing it |
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519 | if( active_item == ( get_item_at (clicked_x, clicked_y) ) ) |
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520 | { |
---|
521 | //a node was found |
---|
522 | if(active_node!=INVALID) |
---|
523 | { |
---|
524 | (mytab.mapstorage).modified = true; |
---|
525 | |
---|
526 | std::set<Graph::Edge> edges_to_delete; |
---|
527 | |
---|
528 | for(OutEdgeIt e((mytab.mapstorage).graph,active_node);e!=INVALID;++e) |
---|
529 | { |
---|
530 | edges_to_delete.insert(e); |
---|
531 | } |
---|
532 | |
---|
533 | for(InEdgeIt e((mytab.mapstorage).graph,active_node);e!=INVALID;++e) |
---|
534 | { |
---|
535 | edges_to_delete.insert(e); |
---|
536 | } |
---|
537 | |
---|
538 | //deleting collected edges |
---|
539 | for(std::set<Graph::Edge>::iterator |
---|
540 | edge_set_it=edges_to_delete.begin(); |
---|
541 | edge_set_it!=edges_to_delete.end(); |
---|
542 | ++edge_set_it) |
---|
543 | { |
---|
544 | deleteItem(*edge_set_it); |
---|
545 | } |
---|
546 | deleteItem(active_node); |
---|
547 | } |
---|
548 | //a simple edge was chosen |
---|
549 | else if (active_edge != INVALID) |
---|
550 | { |
---|
551 | deleteItem(active_edge); |
---|
552 | } |
---|
553 | } |
---|
554 | //pointer was moved, deletion is cancelled |
---|
555 | else |
---|
556 | { |
---|
557 | if(active_node!=INVALID) |
---|
558 | { |
---|
559 | *active_item << Gnome::Canvas::Properties::fill_color("blue"); |
---|
560 | } |
---|
561 | else if (active_edge != INVALID) |
---|
562 | { |
---|
563 | *active_item << Gnome::Canvas::Properties::fill_color("green"); |
---|
564 | } |
---|
565 | } |
---|
566 | } |
---|
567 | //reseting datas |
---|
568 | active_item=NULL; |
---|
569 | active_edge=INVALID; |
---|
570 | active_node=INVALID; |
---|
571 | break; |
---|
572 | |
---|
573 | case GDK_MOTION_NOTIFY: |
---|
574 | break; |
---|
575 | |
---|
576 | default: |
---|
577 | break; |
---|
578 | } |
---|
579 | return false; |
---|
580 | } |
---|
581 | |
---|
582 | bool GraphDisplayerCanvas::mapEditEventHandler(GdkEvent* e) |
---|
583 | { |
---|
584 | if(actual_tool==MAP_EDIT) |
---|
585 | { |
---|
586 | switch(e->type) |
---|
587 | { |
---|
588 | case GDK_BUTTON_PRESS: |
---|
589 | { |
---|
590 | //for determine, whether it was an edge |
---|
591 | Edge clicked_edge=INVALID; |
---|
592 | //for determine, whether it was a node |
---|
593 | Node clicked_node=INVALID; |
---|
594 | |
---|
595 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
---|
596 | active_item=(get_item_at(clicked_x, clicked_y)); |
---|
597 | |
---|
598 | //find the activated item between text of nodes |
---|
599 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
600 | { |
---|
601 | //at the same time only one can be active |
---|
602 | if(nodetextmap[i]==active_item) |
---|
603 | { |
---|
604 | clicked_node=i; |
---|
605 | } |
---|
606 | } |
---|
607 | |
---|
608 | //if there was not, search for it between nodes |
---|
609 | if(clicked_node==INVALID) |
---|
610 | { |
---|
611 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
612 | { |
---|
613 | //at the same time only one can be active |
---|
614 | if(nodesmap[i]==active_item) |
---|
615 | { |
---|
616 | clicked_node=i; |
---|
617 | } |
---|
618 | } |
---|
619 | } |
---|
620 | |
---|
621 | if(clicked_node==INVALID) |
---|
622 | { |
---|
623 | //find the activated item between texts |
---|
624 | for (EdgeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
625 | { |
---|
626 | //at the same time only one can be active |
---|
627 | if(edgetextmap[i]==active_item) |
---|
628 | { |
---|
629 | clicked_edge=i; |
---|
630 | } |
---|
631 | } |
---|
632 | |
---|
633 | //if it was not between texts, search for it between edges |
---|
634 | if(clicked_edge==INVALID) |
---|
635 | { |
---|
636 | for (EdgeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
637 | { |
---|
638 | //at the same time only one can be active |
---|
639 | if((edgesmap[i]->getLine())==active_item) |
---|
640 | { |
---|
641 | clicked_edge=i; |
---|
642 | } |
---|
643 | } |
---|
644 | } |
---|
645 | } |
---|
646 | |
---|
647 | //if it was really a node... |
---|
648 | if(clicked_node!=INVALID) |
---|
649 | { |
---|
650 | // the id map is not editable |
---|
651 | if (nodemap_to_edit == "label") return 0; |
---|
652 | |
---|
653 | //and there is activated map |
---|
654 | if(nodetextmap[clicked_node]->property_text().get_value()!="") |
---|
655 | { |
---|
656 | //activate the general variable for it |
---|
657 | active_node=clicked_node; |
---|
658 | |
---|
659 | //create a dialog |
---|
660 | Gtk::Dialog dialog("Edit value", true); |
---|
661 | dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL); |
---|
662 | dialog.add_button(Gtk::Stock::OK, Gtk::RESPONSE_ACCEPT); |
---|
663 | Gtk::VBox* vbox = dialog.get_vbox(); |
---|
664 | Gtk::SpinButton spin(0.0, 4); |
---|
665 | spin.set_increments(1.0, 10.0); |
---|
666 | spin.set_range(-1000000.0, 1000000.0); |
---|
667 | spin.set_numeric(true); |
---|
668 | spin.set_value(atof(nodetextmap[active_node]->property_text().get_value().c_str())); |
---|
669 | vbox->add(spin); |
---|
670 | spin.show(); |
---|
671 | switch (dialog.run()) |
---|
672 | { |
---|
673 | case Gtk::RESPONSE_NONE: |
---|
674 | case Gtk::RESPONSE_CANCEL: |
---|
675 | break; |
---|
676 | case Gtk::RESPONSE_ACCEPT: |
---|
677 | double new_value = spin.get_value(); |
---|
678 | (*(mytab.mapstorage).nodemap_storage[nodemap_to_edit])[active_node] = |
---|
679 | new_value; |
---|
680 | std::ostringstream ostr; |
---|
681 | ostr << new_value; |
---|
682 | nodetextmap[active_node]->property_text().set_value(ostr.str()); |
---|
683 | //mapwin.updateNode(active_node); |
---|
684 | //mapwin.updateNode(Node(INVALID)); |
---|
685 | propertyUpdate(Node(INVALID)); |
---|
686 | } |
---|
687 | } |
---|
688 | } |
---|
689 | else |
---|
690 | //if it was really an edge... |
---|
691 | if(clicked_edge!=INVALID) |
---|
692 | { |
---|
693 | // the id map is not editable |
---|
694 | if (edgemap_to_edit == "label") return 0; |
---|
695 | |
---|
696 | //and there is activated map |
---|
697 | if(edgetextmap[clicked_edge]->property_text().get_value()!="") |
---|
698 | { |
---|
699 | //activate the general variable for it |
---|
700 | active_edge=clicked_edge; |
---|
701 | |
---|
702 | //create a dialog |
---|
703 | Gtk::Dialog dialog("Edit value", true); |
---|
704 | dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL); |
---|
705 | dialog.add_button(Gtk::Stock::OK, Gtk::RESPONSE_ACCEPT); |
---|
706 | Gtk::VBox* vbox = dialog.get_vbox(); |
---|
707 | Gtk::SpinButton spin(0.0, 4); |
---|
708 | spin.set_increments(1.0, 10.0); |
---|
709 | spin.set_range(-1000000.0, 1000000.0); |
---|
710 | spin.set_numeric(true); |
---|
711 | spin.set_value(atof(edgetextmap[active_edge]->property_text().get_value().c_str())); |
---|
712 | vbox->add(spin); |
---|
713 | spin.show(); |
---|
714 | switch (dialog.run()) |
---|
715 | { |
---|
716 | case Gtk::RESPONSE_NONE: |
---|
717 | case Gtk::RESPONSE_CANCEL: |
---|
718 | break; |
---|
719 | case Gtk::RESPONSE_ACCEPT: |
---|
720 | double new_value = spin.get_value(); |
---|
721 | (*(mytab.mapstorage).edgemap_storage[edgemap_to_edit])[active_edge] = |
---|
722 | new_value; |
---|
723 | std::ostringstream ostr; |
---|
724 | ostr << new_value; |
---|
725 | edgetextmap[active_edge]->property_text().set_value( |
---|
726 | ostr.str()); |
---|
727 | //mapwin.updateEdge(active_edge); |
---|
728 | // mapwin.updateEdge(Edge(INVALID)); |
---|
729 | propertyUpdate(Edge(INVALID)); |
---|
730 | } |
---|
731 | } |
---|
732 | } |
---|
733 | break; |
---|
734 | } |
---|
735 | default: |
---|
736 | break; |
---|
737 | } |
---|
738 | } |
---|
739 | return false; |
---|
740 | } |
---|
741 | |
---|
742 | void GraphDisplayerCanvas::deleteItem(Node node_to_delete) |
---|
743 | { |
---|
744 | delete(nodetextmap[node_to_delete]); |
---|
745 | delete(nodesmap[node_to_delete]); |
---|
746 | (mytab.mapstorage).graph.erase(node_to_delete); |
---|
747 | } |
---|
748 | |
---|
749 | void GraphDisplayerCanvas::deleteItem(Edge edge_to_delete) |
---|
750 | { |
---|
751 | delete(edgetextmap[edge_to_delete]); |
---|
752 | delete(edgesmap[edge_to_delete]); |
---|
753 | (mytab.mapstorage).graph.erase(edge_to_delete); |
---|
754 | } |
---|
755 | |
---|
756 | void GraphDisplayerCanvas::textReposition(XY new_place) |
---|
757 | { |
---|
758 | new_place+=(XY(10,10)); |
---|
759 | edgetextmap[forming_edge]->property_x().set_value(new_place.x); |
---|
760 | edgetextmap[forming_edge]->property_y().set_value(new_place.y); |
---|
761 | } |
---|
762 | |
---|
763 | void GraphDisplayerCanvas::toggleEdgeActivity(EdgeBase* active_bre, bool on) |
---|
764 | { |
---|
765 | if(on) |
---|
766 | { |
---|
767 | if(forming_edge!=INVALID) |
---|
768 | { |
---|
769 | std::cerr << "ERROR!!!! Valid edge found!" << std::endl; |
---|
770 | } |
---|
771 | else |
---|
772 | { |
---|
773 | for (EdgeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
774 | { |
---|
775 | if(edgesmap[i]==active_bre) |
---|
776 | { |
---|
777 | forming_edge=i; |
---|
778 | } |
---|
779 | } |
---|
780 | } |
---|
781 | } |
---|
782 | else |
---|
783 | { |
---|
784 | if(forming_edge!=INVALID) |
---|
785 | { |
---|
786 | forming_edge=INVALID; |
---|
787 | } |
---|
788 | else |
---|
789 | { |
---|
790 | std::cerr << "ERROR!!!! Invalid edge found!" << std::endl; |
---|
791 | } |
---|
792 | } |
---|
793 | } |
---|
794 | |
---|
795 | void GraphDisplayerCanvas::moveNode(double dx, double dy, Gnome::Canvas::Item * item, Node node) |
---|
796 | { |
---|
797 | Gnome::Canvas::Item * moved_item=item; |
---|
798 | Node moved_node=node; |
---|
799 | |
---|
800 | if(item==NULL && node==INVALID) |
---|
801 | { |
---|
802 | moved_item=active_item; |
---|
803 | moved_node=active_node; |
---|
804 | } |
---|
805 | else |
---|
806 | { |
---|
807 | isbutton=1; |
---|
808 | } |
---|
809 | |
---|
810 | //repositioning node and its text |
---|
811 | moved_item->move(dx, dy); |
---|
812 | nodetextmap[moved_node]->move(dx, dy); |
---|
813 | |
---|
814 | // the new coordinates of the centre of the node |
---|
815 | double coord_x = dx + (mytab.mapstorage).coords[moved_node].x; |
---|
816 | double coord_y = dy + (mytab.mapstorage).coords[moved_node].y; |
---|
817 | |
---|
818 | // write back the new coordinates to the coords map |
---|
819 | (mytab.mapstorage).coords.set(moved_node, XY(coord_x, coord_y)); |
---|
820 | |
---|
821 | //all the edges connected to the moved point has to be redrawn |
---|
822 | for(OutEdgeIt ei((mytab.mapstorage).graph,moved_node);ei!=INVALID;++ei) |
---|
823 | { |
---|
824 | XY arrow_pos; |
---|
825 | |
---|
826 | if (mytab.mapstorage.graph.source(ei) == mytab.mapstorage.graph.target(ei)) |
---|
827 | { |
---|
828 | arrow_pos = mytab.mapstorage.arrow_pos[ei] + XY(dx, dy); |
---|
829 | } |
---|
830 | else |
---|
831 | { |
---|
832 | XY moved_node_1(coord_x - dx, coord_y - dy); |
---|
833 | XY moved_node_2(coord_x, coord_y); |
---|
834 | Node target = mytab.mapstorage.graph.target(ei); |
---|
835 | XY fix_node(mytab.mapstorage.coords[target].x, |
---|
836 | mytab.mapstorage.coords[target].y); |
---|
837 | XY old_arrow_pos(mytab.mapstorage.arrow_pos[ei]); |
---|
838 | |
---|
839 | arrow_pos = calcArrowPos(moved_node_1, moved_node_2, fix_node, old_arrow_pos, isbutton); |
---|
840 | } |
---|
841 | |
---|
842 | mytab.mapstorage.arrow_pos.set(ei, arrow_pos); |
---|
843 | edgesmap[ei]->draw(); |
---|
844 | |
---|
845 | //reposition of edgetext |
---|
846 | XY text_pos=mytab.mapstorage.arrow_pos[ei]; |
---|
847 | text_pos+=(XY(10,10)); |
---|
848 | edgetextmap[ei]->property_x().set_value(text_pos.x); |
---|
849 | edgetextmap[ei]->property_y().set_value(text_pos.y); |
---|
850 | } |
---|
851 | |
---|
852 | for(InEdgeIt ei((mytab.mapstorage).graph,moved_node);ei!=INVALID;++ei) |
---|
853 | { |
---|
854 | if (mytab.mapstorage.graph.source(ei) != mytab.mapstorage.graph.target(ei)) |
---|
855 | { |
---|
856 | XY moved_node_1(coord_x - dx, coord_y - dy); |
---|
857 | XY moved_node_2(coord_x, coord_y); |
---|
858 | Node source = mytab.mapstorage.graph.source(ei); |
---|
859 | XY fix_node(mytab.mapstorage.coords[source].x, |
---|
860 | mytab.mapstorage.coords[source].y); |
---|
861 | XY old_arrow_pos(mytab.mapstorage.arrow_pos[ei]); |
---|
862 | |
---|
863 | XY arrow_pos; |
---|
864 | arrow_pos = calcArrowPos(moved_node_1, moved_node_2, fix_node, old_arrow_pos, isbutton); |
---|
865 | |
---|
866 | mytab.mapstorage.arrow_pos.set(ei, arrow_pos); |
---|
867 | edgesmap[ei]->draw(); |
---|
868 | |
---|
869 | //reposition of edgetext |
---|
870 | XY text_pos=mytab.mapstorage.arrow_pos[ei]; |
---|
871 | text_pos+=(XY(10,10)); |
---|
872 | edgetextmap[ei]->property_x().set_value(text_pos.x); |
---|
873 | edgetextmap[ei]->property_y().set_value(text_pos.y); |
---|
874 | } |
---|
875 | } |
---|
876 | } |
---|