[174] | 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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[53] | 19 | #include "graph_displayer_canvas.h" |
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[59] | 20 | #include <cmath> |
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[27] | 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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[34] | 33 | if(actual_tool!=newtool) |
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| 34 | { |
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[27] | 35 | |
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[34] | 36 | actual_handler.disconnect(); |
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[27] | 37 | |
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[34] | 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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[149] | 48 | case MAP_EDIT: |
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[35] | 49 | { |
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| 50 | break; |
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| 51 | } |
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[34] | 52 | default: |
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| 53 | break; |
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| 54 | } |
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[27] | 55 | |
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[34] | 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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[33] | 60 | |
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[27] | 61 | |
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[34] | 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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[27] | 69 | |
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[34] | 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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[27] | 73 | |
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[34] | 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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[27] | 77 | |
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[34] | 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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[32] | 81 | |
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[149] | 82 | case MAP_EDIT: |
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[34] | 83 | grab_focus(); |
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[149] | 84 | actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::mapEditEventHandler), false); |
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[34] | 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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[27] | 90 | } |
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| 91 | } |
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| 92 | |
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[30] | 93 | int GraphDisplayerCanvas::getActualTool() |
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[27] | 94 | { |
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| 95 | return actual_tool; |
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| 96 | } |
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| 97 | |
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[187] | 98 | bool GraphDisplayerCanvas::scrollEventHandler(GdkEvent* e) |
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| 99 | { |
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| 100 | bool handled=false; |
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| 101 | if(e->type==GDK_SCROLL) |
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| 102 | { |
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| 103 | |
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| 104 | //pointer shows this win point before zoom |
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| 105 | XY win_coord(((GdkEventScroll*)e)->x, ((GdkEventScroll*)e)->y); |
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| 106 | |
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| 107 | //the original scroll settings |
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| 108 | int scroll_offset_x, scroll_offset_y; |
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| 109 | get_scroll_offsets(scroll_offset_x, scroll_offset_y); |
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| 110 | |
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| 111 | //pointer shows this canvas point before zoom |
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| 112 | XY canvas_coord; |
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| 113 | window_to_world(win_coord.x, win_coord.y, canvas_coord.x, canvas_coord.y); |
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| 114 | |
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| 115 | if(((GdkEventScroll*)e)->direction) //IN |
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| 116 | { |
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| 117 | zoomIn(); |
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| 118 | } |
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| 119 | else |
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| 120 | { |
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| 121 | zoomOut(); |
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| 122 | } |
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| 123 | |
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| 124 | //pointer shows this window point after zoom |
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| 125 | XY post_win_coord; |
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| 126 | world_to_window(canvas_coord.x, canvas_coord.y, post_win_coord.x, post_win_coord.y); |
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| 127 | |
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| 128 | //we have to add the difference between new and old window point to original scroll offset |
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| 129 | scroll_to(scroll_offset_x+(int)(post_win_coord.x-win_coord.x),scroll_offset_y+(int)(post_win_coord.y-win_coord.y)); |
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| 130 | |
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| 131 | //no other eventhandler is needed |
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| 132 | handled=true; |
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| 133 | } |
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| 134 | return handled; |
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| 135 | } |
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| 136 | |
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[30] | 137 | bool GraphDisplayerCanvas::moveEventHandler(GdkEvent* e) |
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[27] | 138 | { |
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[70] | 139 | static Gnome::Canvas::Text *coord_text = 0; |
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[27] | 140 | switch(e->type) |
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[160] | 141 | { |
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[27] | 142 | case GDK_BUTTON_PRESS: |
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| 143 | //we mark the location of the event to be able to calculate parameters of dragging |
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[31] | 144 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
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[160] | 145 | |
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[31] | 146 | active_item=(get_item_at(clicked_x, clicked_y)); |
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[27] | 147 | active_node=INVALID; |
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[96] | 148 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
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[27] | 149 | { |
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| 150 | if(nodesmap[i]==active_item) |
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| 151 | { |
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| 152 | active_node=i; |
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| 153 | } |
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| 154 | } |
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[148] | 155 | isbutton=e->button.button; |
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[27] | 156 | break; |
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| 157 | case GDK_BUTTON_RELEASE: |
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[70] | 158 | if (coord_text) |
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[160] | 159 | { |
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| 160 | delete coord_text; |
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| 161 | coord_text = 0; |
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| 162 | } |
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[27] | 163 | isbutton=0; |
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| 164 | active_item=NULL; |
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| 165 | active_node=INVALID; |
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| 166 | break; |
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| 167 | case GDK_MOTION_NOTIFY: |
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| 168 | //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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| 169 | if(active_node!=INVALID) |
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[160] | 170 | { |
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| 171 | (mytab.mapstorage).modified = true; |
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| 172 | |
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| 173 | //new coordinates will be the old values, |
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| 174 | //because the item will be moved to the |
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| 175 | //new coordinate therefore the new movement |
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| 176 | //has to be calculated from here |
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| 177 | |
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| 178 | double new_x, new_y; |
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| 179 | |
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| 180 | window_to_world (e->motion.x, e->motion.y, new_x, new_y); |
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| 181 | |
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| 182 | double dx=new_x-clicked_x; |
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| 183 | double dy=new_y-clicked_y; |
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| 184 | |
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| 185 | moveNode(dx, dy); |
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[70] | 186 | |
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[160] | 187 | clicked_x=new_x; |
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| 188 | clicked_y=new_y; |
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[27] | 189 | |
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[160] | 190 | // reposition the coordinates text |
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| 191 | std::ostringstream ostr; |
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| 192 | ostr << "(" << |
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| 193 | (mytab.mapstorage).coords[active_node].x << ", " << |
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| 194 | (mytab.mapstorage).coords[active_node].y << ")"; |
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| 195 | double radius = |
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| 196 | (nodesmap[active_node]->property_x2().get_value() - |
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| 197 | nodesmap[active_node]->property_x1().get_value()) / 2.0; |
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| 198 | if (coord_text) |
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| 199 | { |
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| 200 | coord_text->property_text().set_value(ostr.str()); |
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| 201 | coord_text->property_x().set_value((mytab.mapstorage).coords[active_node].x + |
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| 202 | radius); |
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| 203 | coord_text->property_y().set_value((mytab.mapstorage).coords[active_node].y - |
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| 204 | radius); |
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| 205 | } |
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| 206 | else |
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| 207 | { |
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| 208 | coord_text = new Gnome::Canvas::Text( |
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| 209 | displayed_graph, |
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| 210 | (mytab.mapstorage).coords[active_node].x + radius, |
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| 211 | (mytab.mapstorage).coords[active_node].y - radius, |
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| 212 | ostr.str()); |
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| 213 | coord_text->property_fill_color().set_value("black"); |
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| 214 | coord_text->property_anchor().set_value(Gtk::ANCHOR_SOUTH_WEST); |
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| 215 | } |
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[31] | 216 | |
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| 217 | |
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[160] | 218 | } |
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| 219 | default: break; |
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| 220 | } |
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[27] | 221 | |
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[160] | 222 | return false; |
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[27] | 223 | } |
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| 224 | |
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[148] | 225 | 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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[98] | 226 | { |
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[148] | 227 | switch(move_code) |
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| 228 | { |
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| 229 | case 1: |
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| 230 | return XY((moved_node_2.x + fix_node.x) / 2.0, (moved_node_2.y + fix_node.y) / 2.0); |
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| 231 | break; |
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| 232 | case 2: |
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| 233 | return old_arrow_pos; |
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| 234 | break; |
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| 235 | case 3: |
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| 236 | { |
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| 237 | ////////////////////////////////////////////////////////////////////////////////////////////////////// |
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| 238 | /////////// keeps shape-with scalar multiplication - version 2. |
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| 239 | ////////////////////////////////////////////////////////////////////////////////////////////////////// |
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[98] | 240 | |
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[148] | 241 | //old vector from one to the other node - a |
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[150] | 242 | XY a_v(moved_node_1.x-fix_node.x,moved_node_1.y-fix_node.y); |
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[148] | 243 | //new vector from one to the other node - b |
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[150] | 244 | XY b_v(moved_node_2.x-fix_node.x,moved_node_2.y-fix_node.y); |
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[98] | 245 | |
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[148] | 246 | double absa=sqrt(a_v.normSquare()); |
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| 247 | double absb=sqrt(b_v.normSquare()); |
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[98] | 248 | |
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[148] | 249 | if ((absa == 0.0) || (absb == 0.0)) |
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| 250 | { |
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| 251 | return old_arrow_pos; |
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| 252 | } |
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| 253 | else |
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| 254 | { |
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| 255 | //old vector from one node to the breakpoint - c |
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[150] | 256 | XY c_v(old_arrow_pos.x-fix_node.x,old_arrow_pos.y-fix_node.y); |
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[148] | 257 | |
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| 258 | //unit vector with the same direction to a_v |
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[150] | 259 | XY a_v_u(a_v.x/absa,a_v.y/absa); |
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[148] | 260 | |
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| 261 | //normal vector of unit vector with the same direction to a_v |
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[150] | 262 | XY a_v_u_n(((-1)*a_v_u.y),a_v_u.x); |
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[148] | 263 | |
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| 264 | //unit vector with the same direction to b_v |
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[150] | 265 | XY b_v_u(b_v.x/absb,b_v.y/absb); |
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[148] | 266 | |
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| 267 | //normal vector of unit vector with the same direction to b_v |
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[150] | 268 | XY b_v_u_n(((-1)*b_v_u.y),b_v_u.x); |
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[148] | 269 | |
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| 270 | //vector c in a_v_u and a_v_u_n co-ordinate system |
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[150] | 271 | XY c_a(c_v*a_v_u,c_v*a_v_u_n); |
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[148] | 272 | |
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| 273 | //new vector from one node to the breakpoint - d - we have to calculate this one |
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[150] | 274 | XY d_v=absb/absa*(c_a.x*b_v_u+c_a.y*b_v_u_n); |
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[148] | 275 | |
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| 276 | return XY(d_v.x+fix_node.x,d_v.y+fix_node.y); |
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| 277 | } |
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| 278 | break; |
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| 279 | } |
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| 280 | default: |
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| 281 | break; |
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[98] | 282 | } |
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[148] | 283 | } |
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[98] | 284 | |
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| 285 | |
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[30] | 286 | bool GraphDisplayerCanvas::createNodeEventHandler(GdkEvent* e) |
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[27] | 287 | { |
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| 288 | switch(e->type) |
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[63] | 289 | { |
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| 290 | //move the new node |
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| 291 | case GDK_MOTION_NOTIFY: |
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| 292 | { |
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| 293 | GdkEvent * generated=new GdkEvent(); |
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| 294 | generated->motion.x=e->motion.x; |
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| 295 | generated->motion.y=e->motion.y; |
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| 296 | generated->type=GDK_MOTION_NOTIFY; |
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| 297 | moveEventHandler(generated); |
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| 298 | break; |
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| 299 | } |
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[27] | 300 | |
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[63] | 301 | case GDK_BUTTON_RELEASE: |
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[96] | 302 | (mytab.mapstorage).modified = true; |
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[53] | 303 | |
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[178] | 304 | is_drawn=true; |
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| 305 | |
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[27] | 306 | isbutton=1; |
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| 307 | |
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[96] | 308 | active_node=(mytab.mapstorage).graph.addNode(); |
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[27] | 309 | |
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| 310 | //initiating values corresponding to new node in maps |
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| 311 | |
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| 312 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
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| 313 | |
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[63] | 314 | // update coordinates |
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[150] | 315 | (mytab.mapstorage).coords.set(active_node, XY(clicked_x, clicked_y)); |
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[63] | 316 | |
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| 317 | // update all other maps |
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| 318 | for (std::map<std::string, Graph::NodeMap<double>*>::const_iterator it = |
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[96] | 319 | (mytab.mapstorage).nodemap_storage.begin(); it != |
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| 320 | (mytab.mapstorage).nodemap_storage.end(); ++it) |
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[63] | 321 | { |
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[64] | 322 | if ((it->first != "coordinates_x") && |
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| 323 | (it->first != "coordinates_y")) |
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[63] | 324 | { |
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| 325 | (*(it->second))[active_node] = |
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[96] | 326 | (mytab.mapstorage).nodemap_default[it->first]; |
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[63] | 327 | } |
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| 328 | } |
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[64] | 329 | // increment the id map's default value |
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[134] | 330 | (mytab.mapstorage).nodemap_default["label"] += 1.0; |
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[63] | 331 | |
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[53] | 332 | nodesmap[active_node]=new Gnome::Canvas::Ellipse(displayed_graph, |
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[63] | 333 | clicked_x-20, clicked_y-20, clicked_x+20, clicked_y+20); |
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[27] | 334 | active_item=(Gnome::Canvas::Item *)(nodesmap[active_node]); |
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[63] | 335 | *(nodesmap[active_node]) << |
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| 336 | Gnome::Canvas::Properties::fill_color("blue"); |
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| 337 | *(nodesmap[active_node]) << |
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| 338 | Gnome::Canvas::Properties::outline_color("black"); |
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| 339 | active_item->raise_to_top(); |
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| 340 | |
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[27] | 341 | (nodesmap[active_node])->show(); |
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[28] | 342 | |
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[53] | 343 | nodetextmap[active_node]=new Gnome::Canvas::Text(displayed_graph, |
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[63] | 344 | clicked_x+node_property_defaults[N_RADIUS]+5, |
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| 345 | clicked_y+node_property_defaults[N_RADIUS]+5, ""); |
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[28] | 346 | nodetextmap[active_node]->property_fill_color().set_value("darkblue"); |
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[63] | 347 | nodetextmap[active_node]->raise_to_top(); |
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[28] | 348 | |
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[94] | 349 | // mapwin.updateNode(active_node); |
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| 350 | propertyUpdate(active_node); |
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[28] | 351 | |
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[27] | 352 | isbutton=0; |
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[31] | 353 | target_item=NULL; |
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[27] | 354 | active_item=NULL; |
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| 355 | active_node=INVALID; |
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| 356 | break; |
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| 357 | default: |
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| 358 | break; |
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[63] | 359 | } |
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[27] | 360 | return false; |
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| 361 | } |
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| 362 | |
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[30] | 363 | bool GraphDisplayerCanvas::createEdgeEventHandler(GdkEvent* e) |
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[27] | 364 | { |
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| 365 | switch(e->type) |
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[63] | 366 | { |
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[27] | 367 | case GDK_BUTTON_PRESS: |
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| 368 | //in edge creation right button has special meaning |
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| 369 | if(e->button.button!=3) |
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[63] | 370 | { |
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| 371 | //there is not yet selected node |
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| 372 | if(active_node==INVALID) |
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| 373 | { |
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| 374 | //we mark the location of the event to be able to calculate parameters of dragging |
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[31] | 375 | |
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[63] | 376 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
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[31] | 377 | |
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[63] | 378 | active_item=(get_item_at(clicked_x, clicked_y)); |
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| 379 | active_node=INVALID; |
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[96] | 380 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
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[63] | 381 | { |
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| 382 | if(nodesmap[i]==active_item) |
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| 383 | { |
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| 384 | active_node=i; |
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| 385 | } |
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| 386 | } |
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| 387 | //the clicked item is really a node |
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| 388 | if(active_node!=INVALID) |
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| 389 | { |
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| 390 | *(nodesmap[active_node]) << Gnome::Canvas::Properties::fill_color("red"); |
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| 391 | isbutton=1; |
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| 392 | } |
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| 393 | //clicked item was not a node. It could be e.g. edge. |
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| 394 | else |
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| 395 | { |
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| 396 | active_item=NULL; |
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| 397 | } |
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| 398 | } |
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| 399 | //we only have to do sg. if the mouse button |
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| 400 | // is pressed already once AND the click was |
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| 401 | // on a node that was found in the set of |
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| 402 | //nodes, and now we only search for the second |
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| 403 | //node |
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| 404 | else |
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| 405 | { |
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| 406 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
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| 407 | target_item=(get_item_at(clicked_x, clicked_y)); |
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| 408 | Node target_node=INVALID; |
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[96] | 409 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
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[63] | 410 | { |
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| 411 | if(nodesmap[i]==target_item) |
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| 412 | { |
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| 413 | target_node=i; |
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| 414 | } |
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| 415 | } |
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| 416 | //the clicked item is a node, the edge can be drawn |
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| 417 | if(target_node!=INVALID) |
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| 418 | { |
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[151] | 419 | (mytab.mapstorage).modified = true; |
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| 420 | |
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| 421 | *(nodesmap[target_node]) << |
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| 422 | Gnome::Canvas::Properties::fill_color("red"); |
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| 423 | |
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| 424 | //creating new edge |
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| 425 | active_edge=(mytab.mapstorage).graph.addEdge(active_node, |
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| 426 | target_node); |
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| 427 | |
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| 428 | // update maps |
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| 429 | for (std::map<std::string, |
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| 430 | Graph::EdgeMap<double>*>::const_iterator it = |
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| 431 | (mytab.mapstorage).edgemap_storage.begin(); it != |
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| 432 | (mytab.mapstorage).edgemap_storage.end(); ++it) |
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| 433 | { |
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| 434 | (*(it->second))[active_edge] = |
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| 435 | (mytab.mapstorage).edgemap_default[it->first]; |
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| 436 | } |
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| 437 | // increment the id map's default value |
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| 438 | (mytab.mapstorage).edgemap_default["label"] += 1.0; |
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| 439 | |
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[63] | 440 | if(target_node!=active_node) |
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| 441 | { |
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[113] | 442 | // set the coordinates of the arrow on the new edge |
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| 443 | MapStorage& ms = mytab.mapstorage; |
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| 444 | ms.arrow_pos.set(active_edge, |
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| 445 | (ms.coords[ms.graph.source(active_edge)] + |
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| 446 | ms.coords[ms.graph.target(active_edge)])/ 2.0); |
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| 447 | |
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[63] | 448 | //drawing new edge |
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[98] | 449 | edgesmap[active_edge]=new BrokenEdge(displayed_graph, active_edge, |
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[63] | 450 | *this); |
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| 451 | } |
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| 452 | else |
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| 453 | { |
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[151] | 454 | // set the coordinates of the arrow on the new edge |
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| 455 | MapStorage& ms = mytab.mapstorage; |
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| 456 | ms.arrow_pos.set(active_edge, |
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| 457 | (ms.coords[ms.graph.source(active_edge)] + |
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| 458 | XY(0.0, 80.0))); |
---|
| 459 | |
---|
| 460 | //drawing new edge |
---|
| 461 | edgesmap[active_edge]=new LoopEdge(displayed_graph, active_edge, |
---|
| 462 | *this); |
---|
[63] | 463 | } |
---|
[151] | 464 | |
---|
| 465 | //initializing edge-text as well, to empty string |
---|
| 466 | XY text_pos=mytab.mapstorage.arrow_pos[active_edge]; |
---|
| 467 | text_pos+=(XY(10,10)); |
---|
| 468 | |
---|
| 469 | edgetextmap[active_edge]=new Gnome::Canvas::Text(displayed_graph, |
---|
| 470 | text_pos.x, text_pos.y, ""); |
---|
| 471 | edgetextmap[active_edge]->property_fill_color().set_value( |
---|
| 472 | "darkgreen"); |
---|
| 473 | edgetextmap[active_edge]->raise_to_top(); |
---|
| 474 | |
---|
| 475 | propertyUpdate(active_edge); |
---|
[63] | 476 | } |
---|
| 477 | //clicked item was not a node. it could be an e.g. edge. we do not |
---|
| 478 | //deal with it furthermore. |
---|
| 479 | else |
---|
| 480 | { |
---|
| 481 | target_item=NULL; |
---|
| 482 | } |
---|
| 483 | } |
---|
| 484 | } |
---|
[27] | 485 | break; |
---|
| 486 | case GDK_BUTTON_RELEASE: |
---|
| 487 | isbutton=0; |
---|
| 488 | //we clear settings in two cases |
---|
| 489 | //1: the edge is ready (target_item has valid value) |
---|
| 490 | //2: the edge creation is cancelled with right button |
---|
| 491 | if((target_item)||(e->button.button==3)) |
---|
[63] | 492 | { |
---|
| 493 | if(active_item) |
---|
| 494 | { |
---|
[179] | 495 | propertyUpdate(active_node,N_COLOR); |
---|
[63] | 496 | active_item=NULL; |
---|
| 497 | } |
---|
| 498 | if(target_item) |
---|
| 499 | { |
---|
[179] | 500 | propertyUpdate((mytab.mapstorage).graph.target(active_edge),N_COLOR); |
---|
[63] | 501 | target_item=NULL; |
---|
| 502 | } |
---|
| 503 | active_node=INVALID; |
---|
| 504 | active_edge=INVALID; |
---|
| 505 | } |
---|
[27] | 506 | break; |
---|
| 507 | default: |
---|
| 508 | break; |
---|
[63] | 509 | } |
---|
[27] | 510 | return false; |
---|
| 511 | } |
---|
| 512 | |
---|
[30] | 513 | bool GraphDisplayerCanvas::eraserEventHandler(GdkEvent* e) |
---|
[27] | 514 | { |
---|
| 515 | switch(e->type) |
---|
| 516 | { |
---|
| 517 | case GDK_BUTTON_PRESS: |
---|
[43] | 518 | //finding the clicked items |
---|
[31] | 519 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
---|
| 520 | active_item=(get_item_at(clicked_x, clicked_y)); |
---|
[27] | 521 | active_node=INVALID; |
---|
| 522 | active_edge=INVALID; |
---|
[43] | 523 | //was it a node? |
---|
[96] | 524 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
[27] | 525 | { |
---|
| 526 | if(nodesmap[i]==active_item) |
---|
| 527 | { |
---|
| 528 | active_node=i; |
---|
| 529 | } |
---|
| 530 | } |
---|
[43] | 531 | //or was it an edge? |
---|
[27] | 532 | if(active_node==INVALID) |
---|
| 533 | { |
---|
[96] | 534 | for (EdgeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
[27] | 535 | { |
---|
[153] | 536 | if(edgesmap[i]->getLine()==active_item) |
---|
[27] | 537 | { |
---|
| 538 | active_edge=i; |
---|
| 539 | } |
---|
| 540 | } |
---|
| 541 | } |
---|
[43] | 542 | |
---|
[129] | 543 | // return if the clicked object is neither an edge nor a node |
---|
| 544 | if (active_edge == INVALID) return false; |
---|
| 545 | |
---|
[43] | 546 | //recolor activated item |
---|
[31] | 547 | if(active_item) |
---|
| 548 | { |
---|
| 549 | *active_item << Gnome::Canvas::Properties::fill_color("red"); |
---|
| 550 | } |
---|
[27] | 551 | break; |
---|
| 552 | |
---|
| 553 | case GDK_BUTTON_RELEASE: |
---|
[31] | 554 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
---|
| 555 | if(active_item) |
---|
[27] | 556 | { |
---|
[43] | 557 | //the cursor was not moved since pressing it |
---|
[31] | 558 | if( active_item == ( get_item_at (clicked_x, clicked_y) ) ) |
---|
[27] | 559 | { |
---|
[43] | 560 | //a node was found |
---|
[31] | 561 | if(active_node!=INVALID) |
---|
| 562 | { |
---|
[96] | 563 | (mytab.mapstorage).modified = true; |
---|
[27] | 564 | |
---|
[31] | 565 | std::set<Graph::Edge> edges_to_delete; |
---|
[27] | 566 | |
---|
[96] | 567 | for(OutEdgeIt e((mytab.mapstorage).graph,active_node);e!=INVALID;++e) |
---|
[31] | 568 | { |
---|
| 569 | edges_to_delete.insert(e); |
---|
| 570 | } |
---|
[69] | 571 | |
---|
[96] | 572 | for(InEdgeIt e((mytab.mapstorage).graph,active_node);e!=INVALID;++e) |
---|
[31] | 573 | { |
---|
| 574 | edges_to_delete.insert(e); |
---|
| 575 | } |
---|
[69] | 576 | |
---|
[31] | 577 | //deleting collected edges |
---|
[69] | 578 | for(std::set<Graph::Edge>::iterator |
---|
| 579 | edge_set_it=edges_to_delete.begin(); |
---|
| 580 | edge_set_it!=edges_to_delete.end(); |
---|
| 581 | ++edge_set_it) |
---|
[31] | 582 | { |
---|
| 583 | deleteItem(*edge_set_it); |
---|
| 584 | } |
---|
| 585 | deleteItem(active_node); |
---|
| 586 | } |
---|
| 587 | //a simple edge was chosen |
---|
[129] | 588 | else if (active_edge != INVALID) |
---|
[27] | 589 | { |
---|
[31] | 590 | deleteItem(active_edge); |
---|
[27] | 591 | } |
---|
| 592 | } |
---|
[31] | 593 | //pointer was moved, deletion is cancelled |
---|
[27] | 594 | else |
---|
| 595 | { |
---|
[31] | 596 | if(active_node!=INVALID) |
---|
| 597 | { |
---|
| 598 | *active_item << Gnome::Canvas::Properties::fill_color("blue"); |
---|
| 599 | } |
---|
[129] | 600 | else if (active_edge != INVALID) |
---|
[31] | 601 | { |
---|
| 602 | *active_item << Gnome::Canvas::Properties::fill_color("green"); |
---|
| 603 | } |
---|
[27] | 604 | } |
---|
| 605 | } |
---|
| 606 | //reseting datas |
---|
| 607 | active_item=NULL; |
---|
| 608 | active_edge=INVALID; |
---|
| 609 | active_node=INVALID; |
---|
| 610 | break; |
---|
| 611 | |
---|
| 612 | case GDK_MOTION_NOTIFY: |
---|
| 613 | break; |
---|
| 614 | |
---|
| 615 | default: |
---|
| 616 | break; |
---|
| 617 | } |
---|
[31] | 618 | return false; |
---|
[27] | 619 | } |
---|
| 620 | |
---|
[149] | 621 | bool GraphDisplayerCanvas::mapEditEventHandler(GdkEvent* e) |
---|
[32] | 622 | { |
---|
[149] | 623 | if(actual_tool==MAP_EDIT) |
---|
[32] | 624 | { |
---|
[149] | 625 | switch(e->type) |
---|
| 626 | { |
---|
| 627 | case GDK_BUTTON_PRESS: |
---|
| 628 | { |
---|
| 629 | //for determine, whether it was an edge |
---|
| 630 | Edge clicked_edge=INVALID; |
---|
| 631 | //for determine, whether it was a node |
---|
| 632 | Node clicked_node=INVALID; |
---|
[43] | 633 | |
---|
[149] | 634 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
---|
| 635 | active_item=(get_item_at(clicked_x, clicked_y)); |
---|
[48] | 636 | |
---|
[149] | 637 | //find the activated item between text of nodes |
---|
| 638 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
| 639 | { |
---|
| 640 | //at the same time only one can be active |
---|
| 641 | if(nodetextmap[i]==active_item) |
---|
| 642 | { |
---|
| 643 | clicked_node=i; |
---|
| 644 | } |
---|
| 645 | } |
---|
[65] | 646 | |
---|
[149] | 647 | //if there was not, search for it between nodes |
---|
| 648 | if(clicked_node==INVALID) |
---|
| 649 | { |
---|
| 650 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
| 651 | { |
---|
| 652 | //at the same time only one can be active |
---|
| 653 | if(nodesmap[i]==active_item) |
---|
| 654 | { |
---|
| 655 | clicked_node=i; |
---|
| 656 | } |
---|
| 657 | } |
---|
| 658 | } |
---|
[48] | 659 | |
---|
[149] | 660 | if(clicked_node==INVALID) |
---|
| 661 | { |
---|
| 662 | //find the activated item between texts |
---|
| 663 | for (EdgeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
| 664 | { |
---|
| 665 | //at the same time only one can be active |
---|
| 666 | if(edgetextmap[i]==active_item) |
---|
| 667 | { |
---|
| 668 | clicked_edge=i; |
---|
| 669 | } |
---|
| 670 | } |
---|
[48] | 671 | |
---|
[149] | 672 | //if it was not between texts, search for it between edges |
---|
| 673 | if(clicked_edge==INVALID) |
---|
| 674 | { |
---|
| 675 | for (EdgeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
| 676 | { |
---|
| 677 | //at the same time only one can be active |
---|
| 678 | if((edgesmap[i]->getLine())==active_item) |
---|
| 679 | { |
---|
| 680 | clicked_edge=i; |
---|
| 681 | } |
---|
| 682 | } |
---|
| 683 | } |
---|
| 684 | } |
---|
| 685 | |
---|
| 686 | //if it was really a node... |
---|
| 687 | if(clicked_node!=INVALID) |
---|
| 688 | { |
---|
| 689 | // the id map is not editable |
---|
| 690 | if (nodemap_to_edit == "label") return 0; |
---|
| 691 | |
---|
| 692 | //and there is activated map |
---|
| 693 | if(nodetextmap[clicked_node]->property_text().get_value()!="") |
---|
| 694 | { |
---|
| 695 | //activate the general variable for it |
---|
| 696 | active_node=clicked_node; |
---|
| 697 | |
---|
| 698 | //create a dialog |
---|
| 699 | Gtk::Dialog dialog("Edit value", true); |
---|
| 700 | dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL); |
---|
| 701 | dialog.add_button(Gtk::Stock::OK, Gtk::RESPONSE_ACCEPT); |
---|
| 702 | Gtk::VBox* vbox = dialog.get_vbox(); |
---|
| 703 | Gtk::SpinButton spin(0.0, 4); |
---|
| 704 | spin.set_increments(1.0, 10.0); |
---|
| 705 | spin.set_range(-1000000.0, 1000000.0); |
---|
| 706 | spin.set_numeric(true); |
---|
| 707 | spin.set_value(atof(nodetextmap[active_node]->property_text().get_value().c_str())); |
---|
| 708 | vbox->add(spin); |
---|
| 709 | spin.show(); |
---|
| 710 | switch (dialog.run()) |
---|
| 711 | { |
---|
| 712 | case Gtk::RESPONSE_NONE: |
---|
| 713 | case Gtk::RESPONSE_CANCEL: |
---|
| 714 | break; |
---|
| 715 | case Gtk::RESPONSE_ACCEPT: |
---|
| 716 | double new_value = spin.get_value(); |
---|
| 717 | (*(mytab.mapstorage).nodemap_storage[nodemap_to_edit])[active_node] = |
---|
| 718 | new_value; |
---|
| 719 | std::ostringstream ostr; |
---|
| 720 | ostr << new_value; |
---|
| 721 | nodetextmap[active_node]->property_text().set_value(ostr.str()); |
---|
| 722 | //mapwin.updateNode(active_node); |
---|
| 723 | //mapwin.updateNode(Node(INVALID)); |
---|
| 724 | propertyUpdate(Node(INVALID)); |
---|
| 725 | } |
---|
| 726 | } |
---|
| 727 | } |
---|
| 728 | else |
---|
| 729 | //if it was really an edge... |
---|
| 730 | if(clicked_edge!=INVALID) |
---|
| 731 | { |
---|
| 732 | // the id map is not editable |
---|
| 733 | if (edgemap_to_edit == "label") return 0; |
---|
| 734 | |
---|
| 735 | //and there is activated map |
---|
| 736 | if(edgetextmap[clicked_edge]->property_text().get_value()!="") |
---|
| 737 | { |
---|
| 738 | //activate the general variable for it |
---|
| 739 | active_edge=clicked_edge; |
---|
| 740 | |
---|
| 741 | //create a dialog |
---|
| 742 | Gtk::Dialog dialog("Edit value", true); |
---|
| 743 | dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL); |
---|
| 744 | dialog.add_button(Gtk::Stock::OK, Gtk::RESPONSE_ACCEPT); |
---|
| 745 | Gtk::VBox* vbox = dialog.get_vbox(); |
---|
| 746 | Gtk::SpinButton spin(0.0, 4); |
---|
| 747 | spin.set_increments(1.0, 10.0); |
---|
| 748 | spin.set_range(-1000000.0, 1000000.0); |
---|
| 749 | spin.set_numeric(true); |
---|
| 750 | spin.set_value(atof(edgetextmap[active_edge]->property_text().get_value().c_str())); |
---|
| 751 | vbox->add(spin); |
---|
| 752 | spin.show(); |
---|
| 753 | switch (dialog.run()) |
---|
| 754 | { |
---|
| 755 | case Gtk::RESPONSE_NONE: |
---|
| 756 | case Gtk::RESPONSE_CANCEL: |
---|
| 757 | break; |
---|
| 758 | case Gtk::RESPONSE_ACCEPT: |
---|
| 759 | double new_value = spin.get_value(); |
---|
| 760 | (*(mytab.mapstorage).edgemap_storage[edgemap_to_edit])[active_edge] = |
---|
| 761 | new_value; |
---|
| 762 | std::ostringstream ostr; |
---|
| 763 | ostr << new_value; |
---|
| 764 | edgetextmap[active_edge]->property_text().set_value( |
---|
| 765 | ostr.str()); |
---|
| 766 | //mapwin.updateEdge(active_edge); |
---|
| 767 | // mapwin.updateEdge(Edge(INVALID)); |
---|
| 768 | propertyUpdate(Edge(INVALID)); |
---|
| 769 | } |
---|
| 770 | } |
---|
| 771 | } |
---|
| 772 | break; |
---|
| 773 | } |
---|
| 774 | default: |
---|
| 775 | break; |
---|
| 776 | } |
---|
[32] | 777 | } |
---|
[35] | 778 | return false; |
---|
[32] | 779 | } |
---|
| 780 | |
---|
[62] | 781 | void GraphDisplayerCanvas::deleteItem(Node node_to_delete) |
---|
[27] | 782 | { |
---|
[28] | 783 | delete(nodetextmap[node_to_delete]); |
---|
[27] | 784 | delete(nodesmap[node_to_delete]); |
---|
[96] | 785 | (mytab.mapstorage).graph.erase(node_to_delete); |
---|
[27] | 786 | } |
---|
| 787 | |
---|
[62] | 788 | void GraphDisplayerCanvas::deleteItem(Edge edge_to_delete) |
---|
[27] | 789 | { |
---|
[28] | 790 | delete(edgetextmap[edge_to_delete]); |
---|
[27] | 791 | delete(edgesmap[edge_to_delete]); |
---|
[96] | 792 | (mytab.mapstorage).graph.erase(edge_to_delete); |
---|
[27] | 793 | } |
---|
| 794 | |
---|
[150] | 795 | void GraphDisplayerCanvas::textReposition(XY new_place) |
---|
[27] | 796 | { |
---|
[150] | 797 | new_place+=(XY(10,10)); |
---|
[35] | 798 | edgetextmap[forming_edge]->property_x().set_value(new_place.x); |
---|
| 799 | edgetextmap[forming_edge]->property_y().set_value(new_place.y); |
---|
[27] | 800 | } |
---|
| 801 | |
---|
[147] | 802 | void GraphDisplayerCanvas::toggleEdgeActivity(EdgeBase* active_bre, bool on) |
---|
[27] | 803 | { |
---|
| 804 | if(on) |
---|
[147] | 805 | { |
---|
| 806 | if(forming_edge!=INVALID) |
---|
[27] | 807 | { |
---|
[147] | 808 | std::cerr << "ERROR!!!! Valid edge found!" << std::endl; |
---|
[27] | 809 | } |
---|
[147] | 810 | else |
---|
| 811 | { |
---|
| 812 | for (EdgeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
| 813 | { |
---|
| 814 | if(edgesmap[i]==active_bre) |
---|
| 815 | { |
---|
| 816 | forming_edge=i; |
---|
| 817 | } |
---|
| 818 | } |
---|
| 819 | } |
---|
| 820 | } |
---|
[27] | 821 | else |
---|
| 822 | { |
---|
[160] | 823 | if(forming_edge!=INVALID) |
---|
| 824 | { |
---|
| 825 | forming_edge=INVALID; |
---|
| 826 | } |
---|
| 827 | else |
---|
| 828 | { |
---|
| 829 | std::cerr << "ERROR!!!! Invalid edge found!" << std::endl; |
---|
| 830 | } |
---|
[27] | 831 | } |
---|
[160] | 832 | } |
---|
| 833 | |
---|
| 834 | void GraphDisplayerCanvas::moveNode(double dx, double dy, Gnome::Canvas::Item * item, Node node) |
---|
| 835 | { |
---|
| 836 | Gnome::Canvas::Item * moved_item=item; |
---|
| 837 | Node moved_node=node; |
---|
| 838 | |
---|
| 839 | if(item==NULL && node==INVALID) |
---|
[147] | 840 | { |
---|
[160] | 841 | moved_item=active_item; |
---|
| 842 | moved_node=active_node; |
---|
[147] | 843 | } |
---|
[160] | 844 | else |
---|
| 845 | { |
---|
| 846 | isbutton=1; |
---|
| 847 | } |
---|
| 848 | |
---|
| 849 | //repositioning node and its text |
---|
| 850 | moved_item->move(dx, dy); |
---|
| 851 | nodetextmap[moved_node]->move(dx, dy); |
---|
| 852 | |
---|
| 853 | // the new coordinates of the centre of the node |
---|
| 854 | double coord_x = dx + (mytab.mapstorage).coords[moved_node].x; |
---|
| 855 | double coord_y = dy + (mytab.mapstorage).coords[moved_node].y; |
---|
| 856 | |
---|
| 857 | // write back the new coordinates to the coords map |
---|
| 858 | (mytab.mapstorage).coords.set(moved_node, XY(coord_x, coord_y)); |
---|
| 859 | |
---|
| 860 | //all the edges connected to the moved point has to be redrawn |
---|
| 861 | for(OutEdgeIt ei((mytab.mapstorage).graph,moved_node);ei!=INVALID;++ei) |
---|
| 862 | { |
---|
| 863 | XY arrow_pos; |
---|
| 864 | |
---|
| 865 | if (mytab.mapstorage.graph.source(ei) == mytab.mapstorage.graph.target(ei)) |
---|
| 866 | { |
---|
| 867 | arrow_pos = mytab.mapstorage.arrow_pos[ei] + XY(dx, dy); |
---|
| 868 | } |
---|
| 869 | else |
---|
| 870 | { |
---|
| 871 | XY moved_node_1(coord_x - dx, coord_y - dy); |
---|
| 872 | XY moved_node_2(coord_x, coord_y); |
---|
| 873 | Node target = mytab.mapstorage.graph.target(ei); |
---|
| 874 | XY fix_node(mytab.mapstorage.coords[target].x, |
---|
| 875 | mytab.mapstorage.coords[target].y); |
---|
| 876 | XY old_arrow_pos(mytab.mapstorage.arrow_pos[ei]); |
---|
| 877 | |
---|
| 878 | arrow_pos = calcArrowPos(moved_node_1, moved_node_2, fix_node, old_arrow_pos, isbutton); |
---|
| 879 | } |
---|
| 880 | |
---|
| 881 | mytab.mapstorage.arrow_pos.set(ei, arrow_pos); |
---|
| 882 | edgesmap[ei]->draw(); |
---|
| 883 | |
---|
| 884 | //reposition of edgetext |
---|
| 885 | XY text_pos=mytab.mapstorage.arrow_pos[ei]; |
---|
| 886 | text_pos+=(XY(10,10)); |
---|
| 887 | edgetextmap[ei]->property_x().set_value(text_pos.x); |
---|
| 888 | edgetextmap[ei]->property_y().set_value(text_pos.y); |
---|
| 889 | } |
---|
| 890 | |
---|
| 891 | for(InEdgeIt ei((mytab.mapstorage).graph,moved_node);ei!=INVALID;++ei) |
---|
| 892 | { |
---|
| 893 | if (mytab.mapstorage.graph.source(ei) != mytab.mapstorage.graph.target(ei)) |
---|
| 894 | { |
---|
| 895 | XY moved_node_1(coord_x - dx, coord_y - dy); |
---|
| 896 | XY moved_node_2(coord_x, coord_y); |
---|
| 897 | Node source = mytab.mapstorage.graph.source(ei); |
---|
| 898 | XY fix_node(mytab.mapstorage.coords[source].x, |
---|
| 899 | mytab.mapstorage.coords[source].y); |
---|
| 900 | XY old_arrow_pos(mytab.mapstorage.arrow_pos[ei]); |
---|
| 901 | |
---|
| 902 | XY arrow_pos; |
---|
| 903 | arrow_pos = calcArrowPos(moved_node_1, moved_node_2, fix_node, old_arrow_pos, isbutton); |
---|
| 904 | |
---|
| 905 | mytab.mapstorage.arrow_pos.set(ei, arrow_pos); |
---|
| 906 | edgesmap[ei]->draw(); |
---|
| 907 | |
---|
| 908 | //reposition of edgetext |
---|
| 909 | XY text_pos=mytab.mapstorage.arrow_pos[ei]; |
---|
| 910 | text_pos+=(XY(10,10)); |
---|
| 911 | edgetextmap[ei]->property_x().set_value(text_pos.x); |
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| 912 | edgetextmap[ei]->property_y().set_value(text_pos.y); |
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| 913 | } |
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| 914 | } |
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[27] | 915 | } |
---|
[179] | 916 | |
---|
| 917 | Gdk::Color GraphDisplayerCanvas::rainbowColorCounter(double min, double max, double w) |
---|
| 918 | { |
---|
| 919 | Gdk::Color color; |
---|
| 920 | |
---|
| 921 | double pos=(w-min)/(max-min); |
---|
| 922 | int phase=0; |
---|
| 923 | |
---|
| 924 | //rainbow transitions contain 6 phase |
---|
| 925 | //in each phase only one color is changed |
---|
| 926 | //first we determine the phase, in which |
---|
| 927 | //the actual value belongs to |
---|
| 928 | for (int i=0;i<=5;i++) |
---|
| 929 | { |
---|
| 930 | if(((double)i/6<pos)&&(pos<=(double(i+1)/6))) |
---|
| 931 | { |
---|
| 932 | phase=i; |
---|
| 933 | } |
---|
| 934 | } |
---|
| 935 | if(phase<6) |
---|
| 936 | { |
---|
| 937 | //within its 1/6 long phase the relativ position |
---|
| 938 | //determines the power of the color changed in |
---|
| 939 | //that phase |
---|
| 940 | //we normalize that to one, to be able to give percentage |
---|
| 941 | //value for the function |
---|
| 942 | double rel_pos=(pos-(phase/6))*6; |
---|
| 943 | |
---|
| 944 | switch(phase) |
---|
| 945 | { |
---|
| 946 | case 0: |
---|
| 947 | color.set_rgb_p (1, 0, 1-rel_pos); |
---|
| 948 | break; |
---|
| 949 | case 1: |
---|
| 950 | color.set_rgb_p (1, rel_pos, 0); |
---|
| 951 | break; |
---|
| 952 | case 2: |
---|
| 953 | color.set_rgb_p (1-rel_pos, 1, 0); |
---|
| 954 | break; |
---|
| 955 | case 3: |
---|
| 956 | color.set_rgb_p (0, 1, rel_pos); |
---|
| 957 | break; |
---|
| 958 | case 4: |
---|
| 959 | color.set_rgb_p (0, 1-rel_pos, 1); |
---|
| 960 | break; |
---|
| 961 | case 5: |
---|
| 962 | color.set_rgb_p ((rel_pos/3), 0, 1); |
---|
| 963 | break; |
---|
| 964 | default: |
---|
| 965 | std::cout << "Wrong phase: " << phase << " " << pos << std::endl; |
---|
| 966 | } |
---|
| 967 | } |
---|
| 968 | else |
---|
| 969 | { |
---|
| 970 | std::cout << "Wrong phase: " << phase << " " << pos << std::endl; |
---|
| 971 | } |
---|
| 972 | return color; |
---|
| 973 | } |
---|