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118eed485e
godot/scene/gui/slider.cpp
Juan Linietsky 118eed485e ObjectTypeDB was renamed to ClassDB. Types are meant to be more generic to Variant. 
All usages of "type" to refer to classes were renamed to "class"
ClassDB has been exposed to GDScript.
OBJ_TYPE() macro is now GDCLASS()
2017-01-02 23:03:46 -03:00

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/*************************************************************************/
/* slider.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "slider.h"
#include "os/keyboard.h"
Size2 Slider::get_minimum_size() const {
Ref<StyleBox> style = get_stylebox("slider");
Size2i ms = style->get_minimum_size()+style->get_center_size();
return ms;
}
void Slider::_input_event(InputEvent p_event) {
if (p_event.type==InputEvent::MOUSE_BUTTON) {
InputEventMouseButton &mb = p_event.mouse_button;
if (mb.button_index==BUTTON_LEFT) {
if (mb.pressed) {
Ref<Texture> grabber = get_icon(mouse_inside||has_focus()?"grabber_hilite":"grabber");
grab.pos=orientation==VERTICAL?mb.y:mb.x;
double grab_width = (double)grabber->get_size().width;
double grab_height = (double)grabber->get_size().height;
double max = orientation==VERTICAL ? get_size().height - grab_height : get_size().width - grab_width;
if (orientation==VERTICAL)
set_unit_value( 1 - (((double)grab.pos - (grab_height / 2.0)) / max) );
else
set_unit_value(((double)grab.pos - (grab_width/2.0)) / max);
grab.active=true;
grab.uvalue=get_unit_value();
} else {
grab.active=false;
}
} else if (mb.pressed && mb.button_index==BUTTON_WHEEL_UP) {
set_val( get_val() + get_step());
} else if (mb.pressed && mb.button_index==BUTTON_WHEEL_DOWN) {
set_val( get_val() - get_step());
}
} else if (p_event.type==InputEvent::MOUSE_MOTION) {
if (grab.active) {
Size2i size = get_size();
Ref<Texture> grabber = get_icon("grabber");
float motion = (orientation==VERTICAL?p_event.mouse_motion.y:p_event.mouse_motion.x) - grab.pos;
if (orientation==VERTICAL)
motion=-motion;
float areasize = orientation==VERTICAL?size.height - grabber->get_size().height:size.width - grabber->get_size().width;
if (areasize<=0)
return;
float umotion = motion / float(areasize);
set_unit_value( grab.uvalue + umotion );
}
} else {
if (p_event.is_action("ui_left") && p_event.is_pressed()) {
if (orientation!=HORIZONTAL)
return;
set_val( get_val() - (custom_step>=0?custom_step:get_step()) );
accept_event();
} else if (p_event.is_action("ui_right") && p_event.is_pressed()) {
if (orientation!=HORIZONTAL)
return;
set_val( get_val() + (custom_step>=0?custom_step:get_step()) );
accept_event();
} else if (p_event.is_action("ui_up") && p_event.is_pressed()) {
if (orientation!=VERTICAL)
return;
set_val( get_val() + (custom_step>=0?custom_step:get_step()) );
accept_event();
} else if (p_event.is_action("ui_down") && p_event.is_pressed()) {
if (orientation!=VERTICAL)
return;
set_val( get_val() - (custom_step>=0?custom_step:get_step()) );
accept_event();
} else if (p_event.type==InputEvent::KEY) {
const InputEventKey &k=p_event.key;
if (!k.pressed)
return;
switch (k.scancode) {
case KEY_HOME: {
set_val( get_min() );
accept_event();
} break;
case KEY_END: {
set_val( get_max() );
accept_event();
} break;
} ;
}
}
}
void Slider::_notification(int p_what) {
switch(p_what) {
case NOTIFICATION_MOUSE_ENTER: {
mouse_inside=true;
update();
} break;
case NOTIFICATION_MOUSE_EXIT: {
mouse_inside=false;
update();
} break;
case NOTIFICATION_DRAW: {
RID ci = get_canvas_item();
Size2i size = get_size();
Ref<StyleBox> style = get_stylebox("slider");
Ref<StyleBox> focus = get_stylebox("focus");
Ref<Texture> grabber = get_icon(mouse_inside||has_focus()?"grabber_hilite":"grabber");
Ref<Texture> tick = get_icon("tick");
if (orientation==VERTICAL) {
style->draw(ci,Rect2i(Point2i(),Size2i(style->get_minimum_size().width+style->get_center_size().width,size.height)));
//if (mouse_inside||has_focus())
// focus->draw(ci,Rect2i(Point2i(),Size2i(style->get_minimum_size().width+style->get_center_size().width,size.height)));
float areasize = size.height - grabber->get_size().height;
if (ticks>1) {
int tickarea = size.height - tick->get_height();
for(int i=0;i<ticks;i++) {
if( ! ticks_on_borders && (i == 0 || i + 1 == ticks) ) continue;
int ofs = i*tickarea/(ticks-1);
tick->draw(ci,Point2(0,ofs));
}
}
grabber->draw(ci,Point2i(size.width/2-grabber->get_size().width/2,size.height - get_unit_value()*areasize - grabber->get_size().height));
} else {
style->draw(ci,Rect2i(Point2i(),Size2i(size.width,style->get_minimum_size().height+style->get_center_size().height)));
//if (mouse_inside||has_focus())
// focus->draw(ci,Rect2i(Point2i(),Size2i(size.width,style->get_minimum_size().height+style->get_center_size().height)));
float areasize = size.width - grabber->get_size().width;
if (ticks>1) {
int tickarea = size.width - tick->get_width();
for(int i=0;i<ticks;i++) {
if( (! ticks_on_borders) && ( (i == 0) || ((i + 1) == ticks)) ) continue;
int ofs = i*tickarea/(ticks-1);
tick->draw(ci,Point2(ofs,0));
}
}
grabber->draw(ci,Point2i(get_unit_value()*areasize,size.height/2-grabber->get_size().height/2));
}
} break;
}
}
void Slider::set_custom_step(float p_custom_step) {
custom_step=p_custom_step;
}
float Slider::get_custom_step() const {
return custom_step;
}
void Slider::set_ticks(int p_count) {
ticks=p_count;
update();
}
int Slider::get_ticks() const {
return ticks;
}
bool Slider::get_ticks_on_borders() const{
return ticks_on_borders;
}
void Slider::set_ticks_on_borders(bool _tob){
ticks_on_borders = _tob;
update();
}
void Slider::_bind_methods() {
ClassDB::bind_method(_MD("_input_event"),&Slider::_input_event);
ClassDB::bind_method(_MD("set_ticks","count"),&Slider::set_ticks);
ClassDB::bind_method(_MD("get_ticks"),&Slider::get_ticks);
ClassDB::bind_method(_MD("get_ticks_on_borders"),&Slider::get_ticks_on_borders);
ClassDB::bind_method(_MD("set_ticks_on_borders","ticks_on_border"),&Slider::set_ticks_on_borders);
ADD_PROPERTY( PropertyInfo( Variant::INT, "tick_count", PROPERTY_HINT_RANGE,"0,4096,1"), _SCS("set_ticks"), _SCS("get_ticks") );
ADD_PROPERTY( PropertyInfo( Variant::BOOL, "ticks_on_borders" ), _SCS("set_ticks_on_borders"), _SCS("get_ticks_on_borders") );
ADD_PROPERTY( PropertyInfo( Variant::INT,"focus_mode", PROPERTY_HINT_ENUM, "None,Click,All" ), _SCS("set_focus_mode"), _SCS("get_focus_mode") );
}
Slider::Slider(Orientation p_orientation) {
orientation=p_orientation;
mouse_inside=false;
grab.active=false;
ticks=0;
custom_step=-1;
set_focus_mode(FOCUS_ALL);
}
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