8 #include <all_include.h>
10 #include <libgnomecanvasmm.h>
11 #include <libgnomecanvasmm/polygon.h>
14 ///Graphical interface for node/edge map creation.
16 ///This class is responsible for creating a window,
17 ///on which the parameters of a new map can be set.
18 class NewMapWin : public Gtk::Dialog
20 ///The \ref NoteBookTab in which the new map has to be placed.
25 ///Struct to be able to evaluate expressions.
27 ///Initial values of map elements can be given
28 ///by numbers or by expressions. From expressions
29 ///we build first a tree according to the priorities
30 ///of operations in the expression. This is the data
32 ///that can store one tree element.
35 ///Character stored in this tree element
37 ///Left child of tree element.
38 tree_node * left_child;
39 ///Right child of tree element.
40 tree_node * right_child;
43 ///Constructor of NewMapWin.
45 ///It creates the widgets shown in
47 NewMapWin(const std::string& title, NoteBookTab &, bool itisedge=true, bool edgenode=true);
49 ///Callback function for OK button. It creates the map.
51 ///This function determines whether the input is correct:
52 ///the name of new map must not be already used, the expression
53 ///that gives tha initial values of map elements has to be valid.
54 ///If input is correct it creates and registrates the new map
55 ///to the correct place. (\ref mytab)
56 virtual void on_response(int response_id);
58 ///Close window if Esc key pressed.
59 virtual bool closeIfEscapeIsPressed(GdkEventKey*);
61 ///Function that creates a tree from an appropriately manipulated string.
63 ///Tree is builded according to priorities of operations in expression given by string.
64 ///Priorities are indicated in a vector that contains weights for each operation.
65 ///\param to_tree string to build tree from
66 ///\param weights weights (priorities)
67 ///\param offset this function call is recursive. This parameter tells us,
68 ///with which part of the string do we have to deal with.
69 tree_node * weightedString2Tree(std::string to_tree, std::vector<unsigned int> & weights, int offset);
71 ///Function that creates a string from a tree by postorder reading.
73 ///This is the last step of creating polishform
74 ///from a given expression string.
75 ///\param root the root of the tree to read through
76 std::string postOrder(tree_node * root);
78 ///From the given expression it creates expression given in polish form.
80 ///First it substitutes variables and numbers in the given expression.
81 ///The substitutions will be one character long local variables.
82 ///The substituted-substitution pair is registrated in \ref ch2var.
83 ///After that it gives weights fo each character in substituted expression.
84 ///Weights are calculated according to the priority of operations in expression.
85 ///Then it creates tree (\ref tree_node) from the weighted string. (\ref weightedString2Tree)
86 ///\param to_polish the string to turn into polish_form
87 ///\param itisedge do we have to create an edgemap or a nodemap.
88 ///It is important, because variables are maps and if expression
89 ///citates a map that does not exists the expression is not valid.
90 ///But to determine, whether the map exists we have to know where
91 ///to search for it. And of course for a new edgemap only edgemaps can be serve with values.
92 std::string string2Polishform(std::string to_polish, bool itisedge);
94 ///Returns whether a string can be used as value in an expression.
96 ///The given string has to be either a mapname or a number. If it is a mapname
97 ///we have to know whether it is an edgemap or a nodemap.
98 ///\param variable the string about the function has to determine whether it is usable in expressions
99 ///\param itisedge should the mapname be between edgemaps, or nodemaps
100 bool validVariable(std::string variable, bool itisedge);
102 ///Deletes the whole tree created for translating string to polishform.
106 void deleteTree(tree_node * root);
108 ///Dictionary of substitutions in expression.
110 ///Variables and numbers are substituted with one character long variables in expressions.
111 ///This is the dictionary.
112 std::map<char, std::string> ch2var;
114 ///Entry which gives us the name of new map.
117 ///Entry which gives us the initial values of elements of new map.
119 ///Initial value can be a number or an expression after that the
120 ///initial value for each map element can be calculated.
121 Gtk::Entry default_value;
123 ///GTK Designing object.
126 ///Information holder in window.
129 ///If selected, nodemap will be created.
130 Gtk::RadioButton node;
132 ///If selected, edgemap will be created.
133 Gtk::RadioButton edge;