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Selection Class Reference

#include <selection.hxx>

Collaboration diagram for Selection:

[legend]List of all members.

Public Types
typedef SelectionLst::iterator	iterator
Public Member Functions
	Selection ()
Vector2d	get_center ()
void	select_particles (Vector2d p1, Vector2d p2)
void	scale (float factor)
void	flip ()
void	set_velocity (const Vector2d vel)
void	duplicate ()
void	clear ()
bool	empty () const
void	validate ()
void	rotate (float rot_angle, Vector2d rotate_center)
SelectionLst::size_type	size ()
SelectionLst::iterator	begin ()
SelectionLst::iterator	end ()

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Detailed Description

A class to keep track of a group of selected particles

Definition at line 30 of file selection.hxx.

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Member Typedef Documentation

typedef SelectionLst::iterator Selection::iterator

Definition at line 80 of file selection.hxx. Referenced by WorldViewSelectTool::draw_background(), WorldViewSelectTool::draw_foreground(), get_center(), WorldViewSelectTool::on_delete_press(), WorldViewSelectTool::on_fix_press(), WorldViewSelectTool::on_mouse_move(), and WorldViewSelectTool::on_primary_button_press().

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Constructor & Destructor Documentation

Selection::Selection (    )

Definition at line 30 of file selection.cxx.

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Member Function Documentation

SelectionLst::iterator Selection::begin (    )  [inline]

Definition at line 77 of file selection.hxx. Referenced by WorldViewSelectTool::draw_background(), WorldViewSelectTool::draw_foreground(), WorldViewSelectTool::on_delete_press(), WorldViewSelectTool::on_fix_press(), WorldViewSelectTool::on_mouse_move(), and WorldViewSelectTool::on_primary_button_press().

void Selection::clear (    )

clears the selection Definition at line 168 of file selection.cxx. Referenced by WorldViewSelectTool::deactivate(), WorldViewSelectTool::on_delete_press(), WorldViewSelectTool::on_primary_button_press(), and validate().

void Selection::duplicate (    )

duplicates all selected objects Definition at line 122 of file selection.cxx. References ParticleFactory::add_particle(), World::add_spring(), World::get_particle_mgr(), World::get_spring_mgr(), Controller::instance(), Particle::pos, Controller::push_undo(), and validate(). Referenced by WorldViewSelectTool::on_duplicate_press().

bool Selection::empty (    )  const

Returns: true if no particle is in the selection Definition at line 162 of file selection.cxx. Referenced by WorldViewSelectTool::draw_foreground(), and WorldViewSelectTool::on_secondary_button_press().

SelectionLst::iterator Selection::end (    )  [inline]

Definition at line 78 of file selection.hxx. Referenced by WorldViewSelectTool::draw_background(), WorldViewSelectTool::draw_foreground(), WorldViewSelectTool::on_delete_press(), WorldViewSelectTool::on_fix_press(), WorldViewSelectTool::on_mouse_move(), and WorldViewSelectTool::on_primary_button_press().

void Selection::flip (    )

Definition at line 92 of file selection.cxx. References validate(). Referenced by WorldViewSelectTool::on_button_press().

Vector2d Selection::get_center (    )

Returns: Center point of the selection, aka the center of its bounding box, result is undefined if called on a empty selection Definition at line 36 of file selection.cxx. References Rect< T >::get_center(), iterator, Math::max(), Math::min(), validate(), Rect< T >::x1, Rect< T >::x2, Rect< T >::y1, and Rect< T >::y2. Referenced by WorldViewSelectTool::draw_foreground(), WorldViewSelectTool::on_button_press(), and WorldViewSelectTool::on_secondary_button_press().

void Selection::rotate (  float    rot_angle, Vector2d    rotate_center )

Definition at line 175 of file selection.cxx. References Vector2d::norm(), validate(), Vector2d::x, and Vector2d::y. Referenced by WorldViewSelectTool::on_mouse_move().

void Selection::scale (  float    factor )

scales the selection by the given factor Definition at line 58 of file selection.cxx. References Rect< T >::get_center(), Math::max(), Math::min(), Particle::pos, validate(), Vector2d::x, Rect< T >::x1, Rect< T >::x2, Vector2d::y, Rect< T >::y1, and Rect< T >::y2.

void Selection::select_particles (  Vector2d    p1, Vector2d    p2 )

Select the particles between p1 (upper/left) and p2 (bottom/right) Definition at line 113 of file selection.cxx. References World::get_particles(), Controller::get_world(), Controller::instance(), Vector2d::x, and Vector2d::y. Referenced by WorldViewSelectTool::on_primary_button_release().

void Selection::set_velocity (  const Vector2d    vel )

sets the velocity of all particles to the given one Definition at line 85 of file selection.cxx. Referenced by WorldViewSelectTool::on_button_press().

SelectionLst::size_type Selection::size (    )  [inline]

Definition at line 76 of file selection.hxx.

void Selection::validate (    )

Check if the world has changed, if so clear selecetion Definition at line 195 of file selection.cxx. References clear(), Controller::get_world(), and Controller::instance(). Referenced by duplicate(), flip(), get_center(), rotate(), and scale().

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The documentation for this class was generated from the following files:

• selection.hxx
• selection.cxx

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