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60 lines
2.0 KiB
60 lines
2.0 KiB
#ifndef IGL_OPENGL_GFLW_IMGUI_SELECTIONWIDGET_H
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#define IGL_OPENGL_GFLW_IMGUI_SELECTIONWIDGET_H
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#include "../../../igl_inline.h"
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#include "ImGuiWidget.h"
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#include <Eigen/Dense>
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#include <vector>
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#include <string>
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#include <functional>
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namespace igl{ namespace opengl{ namespace glfw{ namespace imgui{
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class SelectionWidget: public ImGuiWidget
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{
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public:
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// customizable hotkeys
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std::string MARQUEE_KEY = "Mm";
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// leave 'L' for show_lines in viewer
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std::string LASSO_KEY = "l";
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std::string OFF_KEY = "Vv";
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enum Mode
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{
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OFF = 0,
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RECTANGULAR_MARQUEE = 1,
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ELLIPTICAL_MARQUEE = 2,
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POLYGONAL_LASSO = 3,
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LASSO = 4,
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NUM_MODES = 5
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} mode = RECTANGULAR_MARQUEE;
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bool is_down = false;
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bool has_moved_since_down = false;
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bool is_drawing = false;
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// min and max corners of 2D rectangular marquee
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Eigen::Matrix<float,2,2> M = Eigen::Matrix<float,2,2>::Zero();
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// list of points of 2D lasso marquee
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std::vector<Eigen::RowVector2f> L;
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// callback called when slection is completed (usually on mouse_up)
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std::function<void(void)> callback;
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// callback called after mode is changed
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std::function<void(Mode)> callback_post_mode_change;
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IGL_INLINE virtual void init(Viewer *_viewer, ImGuiPlugin *_plugin) override;
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IGL_INLINE virtual void draw() override;
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IGL_INLINE virtual bool mouse_down(int button, int modifier) override;
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IGL_INLINE virtual bool mouse_up(int button, int modifier) override;
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IGL_INLINE virtual bool mouse_move(int mouse_x, int mouse_y) override;
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IGL_INLINE virtual bool key_pressed(unsigned int key, int modifiers) override;
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IGL_INLINE void clear();
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// helpers
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IGL_INLINE static void circle(const Eigen::Matrix<float,2,2> & M, std::vector<Eigen::RowVector2f> & L);
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IGL_INLINE static void rect(const Eigen::Matrix<float,2,2> & M, std::vector<Eigen::RowVector2f> & L);
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IGL_INLINE static Eigen::RowVector2f xy(const Viewer * v);
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public:
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EIGEN_MAKE_ALIGNED_OPERATOR_NEW
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};
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}}}}
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#ifndef IGL_STATIC_LIBRARY
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#include "SelectionWidget.cpp"
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#endif
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#endif
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