Pixel-Composer/scripts/slider/slider.gml
2023-08-16 20:16:31 +02:00

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function slider(_min, _max, _step, _onModify = noone, _onRelease = noone) : widget() constructor {
minn = _min; curr_minn = _min;
maxx = _max; curr_maxx = _max;
step = _step;
onModify = _onModify;
onRelease = _onRelease;
onApply = function(val) {
if(onModify) onModify(val);
if(onRelease) onRelease();
}
dragging = false;
drag_mx = 0;
drag_sx = 0;
spr = THEME.slider;
blend = c_white;
handle_w = ui(20);
tb_value = new textBox(TEXTBOX_INPUT.number, onApply);
static setSlideSpeed = function(speed) {
tb_value.slide_speed = speed;
}
static setInteract = function(interactable = noone) {
self.interactable = interactable;
tb_value.interactable = interactable;
}
static register = function(parent = noone) {
tb_value.register(parent);
}
static drawParam = function(params) {
return draw(params.x, params.y, params.w, params.h, params.data, params.m);
}
static draw = function(_x, _y, _w, _h, _data, _m, tb_w = 50, halign = fa_left, valign = fa_top) {
x = _x;
y = _y;
w = _w;
h = _h;
if(!is_real(_data)) return;
switch(halign) {
case fa_left: _x = _x; break;
case fa_center: _x = _x - _w / 2; break;
case fa_right: _x = _x - _w; break;
}
switch(valign) {
case fa_top: _y = _y; break;
case fa_center: _y = _y - _h / 2; break;
case fa_bottom: _y = _y - _h; break;
}
var _rang = abs(maxx - minn);
if(!dragging) {
curr_minn = (_data >= minn)? minn : minn - ceil(abs(_data - minn) / _rang) * _rang;
curr_maxx = (_data <= maxx)? maxx : maxx + ceil(abs(_data - maxx) / _rang) * _rang;
}
var sw = _w;
if(tb_w > 0) {
sw = _w - (tb_w + ui(16));
tb_value.setFocusHover(active, hover);
tb_value.draw(_x + sw + ui(16), _y, tb_w, _h, _data, _m);
}
if(THEME_VALUE.slider_type == "full_height")
draw_sprite_stretched_ext(spr, 0, _x, _y, sw, _h, blend, 1);
else if(THEME_VALUE.slider_type == "stem")
draw_sprite_stretched_ext(spr, 0, _x, _y + _h / 2 - ui(4), sw, ui(8), blend, 1);
var _pg = clamp((_data - curr_minn) / (curr_maxx - curr_minn), 0, 1) * sw;
var _kx = _x + _pg;
if(THEME_VALUE.slider_type == "full_height")
draw_sprite_stretched_ext(spr, 1, _x, _y, _pg, _h, blend, 1);
else if(THEME_VALUE.slider_type == "stem")
draw_sprite_stretched_ext(spr, 1, _kx - handle_w / 2, _y, handle_w, _h, blend, 1);
if(dragging) {
if(THEME_VALUE.slider_type == "stem")
draw_sprite_stretched_ext(spr, 3, _kx - handle_w / 2, _y, handle_w, _h, COLORS._main_accent, 1);
var val = (_m[0] - _x) / sw * (curr_maxx - curr_minn) + curr_minn;
val = round(val / step) * step;
val = clamp(val, curr_minn, curr_maxx);
if(key_mod_press(CTRL))
val = round(val);
if(onModify != noone) {
if(onModify(val))
UNDO_HOLDING = true;
}
if(mouse_release(mb_left)) {
dragging = false;
if(onRelease != noone)
onRelease(val);
UNDO_HOLDING = false;
}
} else {
if(hover && (point_in_rectangle(_m[0], _m[1], _x, _y, _x + sw, _y + _h) || point_in_rectangle(_m[0], _m[1], _kx - handle_w / 2, _y, _kx + handle_w / 2, _y + _h))) {
if(THEME_VALUE.slider_type == "stem")
draw_sprite_stretched_ext(spr, 2, _kx - handle_w / 2, _y, handle_w, _h, blend, 1);
if(mouse_press(mb_left, active)) {
dragging = true;
drag_mx = _m[0];
drag_sx = _data;
}
}
}
resetFocus();
return h;
}
}