42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
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#pragma once
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#include <cgv/signal/signal.h>
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#include <cgv/signal/abst_signal.h>
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#include "lib_begin.h"
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namespace cgv {
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namespace gui {
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// abstract class to define an element that can change its size
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// and position
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class CGV_API resizable {
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public:
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// get the position of the element
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virtual void get_position(int &pos_x, int &pos_y) = 0;
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// get the extents of an element
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virtual void get_extents(int &width, int &height) = 0;
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// set the position
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void set_position(int pos_x, int pos_y);
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// set the dimensions
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void set_extents(int width, int height);
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// signal other elements can connect to if they are
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// interested in size or position changes that come
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// from the outside
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cgv::signal::signal<resizable&> extents_position_change;
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protected:
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// method for changing the size of the element
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virtual void set_extents_request(int width, int height) = 0;
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// method for changing the position of the element
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virtual void set_position_request(int pos_x, int pos_y) = 0;
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};
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}
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}
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#include <cgv/config/lib_end.h>
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