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- #include <ClanLib/Display/display.h>
- #include <ClanLib/Display/keys.h>
- #include "math.hpp"
- #include "slider.hpp"
- Slider::Slider(const CL_Rect& rect, CL_Component* parent)
- : CL_Component(rect, parent)
- {
- start = 0.0f;
- end = 100.0f;
- value = 50.0f;
- pressed = false;
- slots.push_back(sig_mouse_down().connect(this, &Slider::on_mouse_down));
- slots.push_back(sig_mouse_up().connect(this, &Slider::on_mouse_up));
- slots.push_back(sig_mouse_move().connect(this, &Slider::on_mouse_move));
- slots.push_back(sig_paint().connect(this, &Slider::draw));
- }
- Slider::~Slider()
- {
- }
- void
- Slider::draw()
- {
- CL_Display::push_modelview();
- CL_Display::add_translate(get_screen_x(), get_screen_y());
- CL_Display::fill_rect(CL_Rect(CL_Point(0, get_height()/2 - 2),
- CL_Size(get_width(), 5)),
- CL_Color(255, 255, 255, 255));
- CL_Display::fill_rect(CL_Rect(CL_Point(int(-2 + (value/(end-start)) * get_width()), 0),
- CL_Size(5, get_height())),
- CL_Color(0, 0, 0, 255));
- CL_Display::pop_modelview();
- }
- void
- Slider::set_range(float start_, float end_)
- {
- start = start_;
- end = end_;
- }
- CL_Signal_v1<float>&
- Slider::sig_on_change()
- {
- return on_change;
- }
- void
- Slider::set_value(float value_)
- {
- value = value_;
- on_change(value);
- }
- void
- Slider::update_mouse(const CL_InputEvent& event)
- {
- set_value(Math::mid(start, (float(event.mouse_pos.x) / get_width()) * (end - start), end));
- }
- void
- Slider::on_mouse_down(const CL_InputEvent& event)
- {
- if (event.id == CL_MOUSE_LEFT)
- {
- pressed = true;
- capture_mouse();
- update_mouse(event);
- }
- }
- void
- Slider::on_mouse_up (const CL_InputEvent& event)
- {
- if (event.id == CL_MOUSE_LEFT)
- {
- pressed = false;
- release_mouse();
- update_mouse(event);
- }
- }
- void
- Slider::on_mouse_move(const CL_InputEvent& event)
- {
- if (pressed)
- {
- update_mouse(event);
- }
- }
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