Horizon
tool_draw_arc.hpp
1 #pragma once
2 #include "core.hpp"
3 
4 namespace horizon {
5 
6 class ToolDrawArc : public ToolBase {
7 public:
8  ToolDrawArc(Core *c, ToolID tid);
9  ToolResponse begin(const ToolArgs &args) override;
10  ToolResponse update(const ToolArgs &args) override;
11  bool can_begin() override;
12 
13 private:
14  enum class DrawArcState { FROM, TO, CENTER };
15  DrawArcState state;
16  Junction *temp_junc = 0;
17  Junction *from_junc = 0;
18  Junction *to_junc = 0;
19  Arc *temp_arc = 0;
20  Junction *make_junction(const Coordi &coords);
21  void update_tip();
22 };
23 } // namespace horizon
bool can_begin() override
Definition: tool_draw_arc.cpp:11
ToolResponse begin(const ToolArgs &args) override
Gets called right after the constructor has finished.
Definition: tool_draw_arc.cpp:25
This is what a Tool receives when the user did something.
Definition: core.hpp:108
ToolResponse update(const ToolArgs &args) override
Gets called whenever the user generated some sort of input.
Definition: tool_draw_arc.cpp:55
Where Tools and and documents meet.
Definition: core.hpp:249
To signal back to the core what the Tool did, a Tool returns a ToolResponse.
Definition: core.hpp:126
Definition: block.cpp:7
Common interface for all Tools.
Definition: core.hpp:170
A Junction is a point in 2D-Space.
Definition: junction.hpp:25
Definition: tool_draw_arc.hpp:6
Graphical arc.
Definition: arc.hpp:20