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Pixel-Composer/scripts/curveBox/curveBox.gml

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function curveBox(_onModify) : widget() constructor {
onModify = _onModify;
curr_data = [];
anc_mirror = [];
h = 200;
curve_surface = surface_create(1, 1);
node_dragging = -1;
node_drag_typ = -1;
node_drag_break = false;
height_drag = false;
height_my = 0;
height_ss = 0;
show_coord = false;
minx = 0; maxx = 1;
miny = 0; maxy = 1;
dragging = 0;
drag_m = 0;
drag_s = 0;
drag_h = 0;
progress_draw = -1;
display_pos_x = 0;
display_pos_y = 0;
display_sel = 0;
grid_snap = false;
grid_step = 0.10;
grid_show = true;
scale_control = true;
control_zoom = 64;
selecting = noone;
select_type = 0;
cw = 0;
ch = 0;
tb_shift = new textBox(TEXTBOX_INPUT.number, function(val) { var _data = array_clone(curr_data); _data[0] = val; onModify(_data); });
tb_scale = new textBox(TEXTBOX_INPUT.number, function(val) { var _data = array_clone(curr_data); _data[1] = val; onModify(_data); });
tb_shift.label = "Shift";
tb_scale.label = "Scale";
static get_x = function(val) { return cw * (val - minx) / (maxx - minx) ; }
static get_y = function(val) { return ch * (1 - (val - miny) / (maxy - miny)); }
static setInteract = function(interactable = noone) {
self.interactable = interactable;
tb_shift.setInteract(interactable);
tb_scale.setInteract(interactable);
}
static register = function(parent = noone) {
self.parent = parent;
tb_shift.register(parent);
tb_scale.register(parent);
}
static isHovering = function() {
if(tb_shift.isHovering()) return true;
if(tb_scale.isHovering()) return true;
return hovering;
}
static drawParam = function(params) {
rx = params.rx;
ry = params.ry;
tb_shift.setParam(params);
tb_scale.setParam(params);
return draw(params.x, params.y, params.w, params.data, params.m);
}
static draw = function(_x, _y, _w, _data, _m) {
x = _x;
y = _y;
w = _w;
if(!is_array(_data) || array_length(_data) == 0) return 0;
if(is_array(_data[0])) return 0;
var _h = h - ui(4);
var _amo = array_length(_data);
_shf = _amo % 6;
var points = (_amo - _shf) / 6;
var _shift = 0;
var _scale = 1;
var zoom_size = ui(12);
var zoom_padd = zoom_size + ui(8);
var tbh = line_get_height(font) + ui(4);
cw = _w - zoom_padd;
ch = _h - zoom_padd - (tbh + ui(4)) * bool(_shf);
hovering = false;
curr_data = _data;
if(_shf == 1) { _shift = _data[0]; }
else if(_shf == 2) { _shift = _data[0]; _scale = _data[1]; }
display_pos_x = lerp(minx, maxx, (_m[0] - _x) / cw);
display_pos_y = lerp(miny, maxy, 1 - (_m[1] - _y) / ch);
display_sel = false;
curve_surface = surface_verify(curve_surface, cw, ch);
if(node_dragging != -1) { // editing
show_coord = true;
_data = array_clone(_data);
if(node_drag_typ == 0) { //anchor
var _mx = (_m[0] - _x) / cw;
_mx = clamp(_mx * (maxx - minx) + minx, 0, 1);
var _my = 1 - (_m[1] - _y) / ch;
_my = clamp(_my * (maxy - miny) + miny, 0, 1);
var node_point = (node_dragging - _shf - 2) / 6;
if(node_point > 0 && node_point < points - 1) {
if(key_mod_press(CTRL) || grid_snap)
_mx = value_snap(_mx, grid_step);
var bfx = _data[node_dragging - 6];
var afx = _data[node_dragging + 6];
if(_mx > bfx && _mx < afx) _data[node_dragging + 0] = _mx;
}
if(key_mod_press(CTRL) || grid_snap)
_my = value_snap(_my, grid_step);
_data[node_dragging + 1] = _my;
display_pos_x = _data[node_dragging + 0];
display_pos_y = _data[node_dragging + 1];
display_sel = 1;
if(onModify(_data))
UNDO_HOLDING = true;
} else { //control
var _px = _data[node_dragging + 0];
var _py = _data[node_dragging + 1];
var _mx = (_m[0] - _x) / cw;
_mx = clamp(lerp(minx, maxx, _mx), 0, 1);
var _my = 1 - (_m[1] - _y) / ch;
_my = lerp(miny, maxy, _my);
var _scax = scale_control? (node_drag_typ > 0? _data[node_dragging + 6] - _px : _px - _data[node_dragging - 6]) : control_zoom / cw;
var _scay = scale_control? _scax : control_zoom / ch;
if(key_mod_press(CTRL) || grid_snap) _mx = value_snap(_mx, grid_step);
if(key_mod_press(CTRL) || grid_snap) _my = value_snap(_my, grid_step);
if(node_drag_break) {
if(node_drag_typ == 1) {
_data[node_dragging + 2] = (_mx - _px) * node_drag_typ / _scax;
_data[node_dragging + 3] = clamp(_my - _py, -1, 1) * node_drag_typ / _scay;
} else {
_data[node_dragging - 2] = (_px - _mx) * node_drag_typ / _scax;
_data[node_dragging - 1] = clamp(_py - _my, -1, 1) * node_drag_typ / _scay;
}
} else {
_data[node_dragging - 2] = (_px - _mx) * node_drag_typ / _scax;
_data[node_dragging + 2] = (_mx - _px) * node_drag_typ / _scax;
_data[node_dragging - 1] = clamp(_py - _my, -1, 1) * node_drag_typ / _scay;
_data[node_dragging + 3] = clamp(_my - _py, -1, 1) * node_drag_typ / _scay;
}
display_pos_x = node_drag_typ? _data[node_dragging - 2] : _data[node_dragging + 2];
display_pos_y = node_drag_typ? _data[node_dragging - 1] : _data[node_dragging + 3];
display_sel = 2;
if(onModify(_data))
UNDO_HOLDING = true;
}
if(mouse_release(mb_left)) {
node_dragging = -1;
node_drag_typ = -1;
UNDO_HOLDING = false;
}
}
var node_hovering = -1;
var node_hover_typ = -1;
var point_insert = 1;
var _x1 = 0;
var msx = _m[0] - _x;
var msy = _m[1] - _y;
#region ==== draw curve ====
surface_set_target(curve_surface);
DRAW_CLEAR
draw_set_color(COLORS.widget_curve_line);
draw_set_alpha(0.75);
if(grid_show) {
var st = max(grid_step, 0.02);
for( var i = st; i < 1; i += st ) {
var y0 = ch * (1 - (i - miny) / (maxy - miny));
draw_line(0, y0, cw, y0);
var x0 = cw * (i - minx) / (maxx - minx);
draw_line(x0, get_y(0), x0, get_y(1));
}
}
var y0 = ch - ch * (0 - miny) / (maxy - miny);
var y1 = ch - ch * (1 - miny) / (maxy - miny);
draw_set_alpha(0.9);
draw_line(0, y0, cw, y0);
draw_line(0, y1, cw, y1);
draw_set_alpha(1);
if(progress_draw > -1) {
var _prg = clamp(progress_draw, 0, 1);
var _px = get_x(cw * _prg);
draw_set_color(COLORS.widget_curve_line);
draw_line(_px, 0, _px, ch);
}
// print("");
if(_shf) {
draw_set_color(merge_color(COLORS._main_icon, COLORS._main_icon_dark, 0.5));
draw_curve(0, 0, cw, ch, _data, minx, maxx, miny, maxy, _shift, _scale);
}
for( var i = 0; i < points; i++ ) {
var ind = _shf + i * 6;
var _x0 = _data[ind + 2];
var _y0 = _data[ind + 3];
var _sca_bx = scale_control? (i > 0? _x0 - _data[ind - 6 + 2] : 1) : control_zoom / cw;
var _sca_by = scale_control? _sca_bx : control_zoom / ch;
var _sca_ax = scale_control? (i < points - 1? _data[ind + 6 + 2] - _x0 : 1) : control_zoom / cw;
var _sca_ay = scale_control? _sca_ax : control_zoom / ch;
var bx0 = _x0 + _data[ind + 0] * _sca_bx;
var by0 = _y0 + _data[ind + 1] * _sca_by;
var ax0 = _x0 + _data[ind + 4] * _sca_ax;
var ay0 = _y0 + _data[ind + 5] * _sca_ay;
// print($"{_x0}, {_y0} | {_data[ind + 0]}, {_data[ind + 1]} | {_data[ind + 4]}, {_data[ind + 5]}");
bx0 = get_x(bx0);
by0 = get_y(by0);
_x0 = get_x(_x0);
_y0 = get_y(_y0);
ax0 = get_x(ax0);
ay0 = get_y(ay0);
draw_set_color(COLORS.widget_curve_line);
if(i > 0) { //draw pre line
draw_line(bx0, by0, _x0, _y0);
draw_circle_prec(bx0, by0, 3, false);
if(hover && point_in_circle(msx, msy, bx0, by0, 10)) {
draw_circle_prec(bx0, by0, 5, false);
node_hovering = ind + 2;
node_hover_typ = -1;
display_pos_x = _data[ind + 0];
display_pos_y = _data[ind + 1];
display_sel = 2;
}
}
if(i < points - 1) { //draw post line
draw_line(ax0, ay0, _x0, _y0);
draw_circle_prec(ax0, ay0, 3, false);
if(hover && point_in_circle(msx, msy, ax0, ay0, 10)) {
draw_circle_prec(ax0, ay0, 5, false);
node_hovering = ind + 2;
node_hover_typ = 1;
display_pos_x = _data[ind + 4];
display_pos_y = _data[ind + 5];
display_sel = 2;
}
}
draw_set_color(COLORS._main_accent);
draw_circle_prec(_x0, _y0, 3, false);
if(hover && point_in_circle(msx, msy, _x0, _y0, 10)) {
draw_circle_prec(_x0, _y0, 5, false);
node_hovering = ind + 2;
node_hover_typ = 0;
display_pos_x = _data[ind + 2];
display_pos_y = _data[ind + 3];
display_sel = 1;
}
if(msx >= _x1 && msy <= _x0)
point_insert = i;
_x1 = _x0;
}
draw_set_color(COLORS._main_accent);
draw_curve(0, 0, cw, ch, _data, minx, maxx, miny, maxy);
surface_reset_target();
#endregion
#region ==== view controls ====
var hov = 0;
var bs = zoom_size;
var zminy = 0 - 1;
var zmaxy = 1 + 1;
var byH = ch;
var bx = _x + w - bs;
var by = _y;
var zy0 = by + bs / 2 + (byH - bs) * (1 - (miny - zminy) / (zmaxy - zminy));
var zy1 = by + bs / 2 + (byH - bs) * (1 - (maxy - zminy) / (zmaxy - zminy));
if(dragging) {
var _mdy = (drag_m[1] - _m[1]) / (byH - bs) * 2;
if(dragging == 1 || dragging == 3) miny = clamp(drag_s[0] + _mdy, zminy, min(maxy - 0.1, zmaxy));
if(dragging == 2 || dragging == 3) maxy = clamp(drag_s[1] + _mdy, max(miny + 0.1, zminy), zmaxy);
if(mouse_release(mb_left))
dragging = false;
}
if(point_in_rectangle(_m[0], _m[1], bx, zy0 - bs / 2, bx + bs, zy0 + bs / 2))
hov = 1;
else if(point_in_rectangle(_m[0], _m[1], bx, zy1 - bs / 2, bx + bs, zy1 + bs / 2))
hov = 2;
else if(point_in_rectangle(_m[0], _m[1], bx, zy1 - bs / 2, bx + bs, zy0 + bs / 2))
hov = 3;
draw_sprite_stretched_ext(THEME.s_box_r2, 0, bx, by, bs, byH, CDEF.main_black, 1);
draw_sprite_stretched_ext(THEME.s_box_r2, 0, bx, zy1, bs, zy0 - zy1, drag_h == 3? merge_color(CDEF.main_dkgrey, CDEF.main_grey, 0.4) : CDEF.main_dkgrey, 1);
draw_sprite_stretched_ext(THEME.s_box_r2, 0, bx, zy0 - bs / 2, bs, bs, drag_h == 1? COLORS._main_icon_light : COLORS._main_icon, 1);
draw_sprite_stretched_ext(THEME.s_box_r2, 0, bx, zy1 - bs / 2, bs, bs, drag_h == 2? COLORS._main_icon_light : COLORS._main_icon, 1);
var zminx = 0;
var zmaxx = 1;
var bxW = _w - zoom_padd;
var bx = _x;
var by = _y + _h - bs - (tbh + ui(4)) * bool(_shf);
var zx0 = bx + bs / 2 + (bxW - bs) * (minx - zminx) / (zmaxx - zminx);
var zx1 = bx + bs / 2 + (bxW - bs) * (maxx - zminx) / (zmaxx - zminx);
if(dragging) {
var _mdx = (_m[0] - drag_m[0]) / (bxW - bs);
if(dragging == 4 || dragging == 6) minx = clamp(drag_s[2] + _mdx, zminx, min(maxx - 0.1, zmaxx));
if(dragging == 5 || dragging == 6) maxx = clamp(drag_s[3] + _mdx, max(minx + 0.1, zminx), zmaxx);
if(mouse_release(mb_left))
dragging = false;
}
if(point_in_rectangle(_m[0], _m[1], zx0 - bs / 2, by, zx0 + bs / 2, by + bs))
hov = 4;
else if(point_in_rectangle(_m[0], _m[1], zx1 - bs / 2, by, zx1 + bs / 2, by + bs))
hov = 5;
else if(point_in_rectangle(_m[0], _m[1], zx0 - bs / 2, by, zx1 + bs / 2, by + bs))
hov = 6;
draw_sprite_stretched_ext(THEME.s_box_r2, 0, bx, by, bxW, bs, CDEF.main_black, 1);
draw_sprite_stretched_ext(THEME.s_box_r2, 0, zx0, by, zx1 - zx0, bs, drag_h == 6? merge_color(CDEF.main_dkgrey, CDEF.main_grey, 0.4) : CDEF.main_dkgrey, 1);
draw_sprite_stretched_ext(THEME.s_box_r2, 0, zx0 - bs / 2, by, bs, bs, drag_h == 4? COLORS._main_icon_light : COLORS._main_icon, 1);
draw_sprite_stretched_ext(THEME.s_box_r2, 0, zx1 - bs / 2, by, bs, bs, drag_h == 5? COLORS._main_icon_light : COLORS._main_icon, 1);
drag_h = hov;
if(mouse_press(mb_left, hov && active)) {
dragging = hov;
drag_m = [ _m[0], _m[1] ];
drag_s = [ miny, maxy, minx, maxx ];
}
if(dragging == 10) {
var _mdx = (_m[0] - drag_m[0]) / (bxW - bs);
var _mdy = (drag_m[1] - _m[1]) / (byH - bs) * 2;
var zw = drag_s[3] - drag_s[2];
var zh = drag_s[1] - drag_s[0];
var cx = clamp((drag_s[3] + drag_s[2]) / 2 - _mdx, zminx + zw / 2, zmaxx - zw / 2);
var cy = clamp((drag_s[1] + drag_s[0]) / 2 - _mdy, zminy + zh / 2, zmaxy - zh / 2);
minx = cx - zw / 2;
maxx = cx + zw / 2;
miny = cy - zh / 2;
maxy = cy + zh / 2;
if(mouse_release(mb_middle))
dragging = false;
}
if(point_in_rectangle(_m[0], _m[1], _x, _y, _x + cw, _y + ch) && mouse_press(mb_middle, active)) {
dragging = 10;
drag_m = [ _m[0], _m[1] ];
drag_s = [ miny, maxy, minx, maxx ];
}
var _bhx = _x + _w - bs;
var _bhy = _y + _h - bs - (tbh + ui(4)) * bool(_shf);
var _hov = false;
if(point_in_rectangle(_m[0], _m[1], _bhx, _bhy, _bhx + bs, _bhy + bs)) {
_hov = true;
if(mouse_press(mb_left, active)) {
dragging = hov;
height_drag = true;
height_my = _m[1];
height_ss = h;
}
}
draw_sprite_stretched_ext(THEME.s_box_r2, 0, _bhx, _bhy, bs, bs, _hov? COLORS._main_icon : CDEF.main_dkgrey, 1);
if(height_drag) {
h = height_ss + _m[1] - height_my;
h = max(100, h);
if(mouse_release(mb_left))
height_drag = false;
}
#endregion
if(hover && point_in_rectangle(_m[0], _m[1], _x, _y, _x + cw, _y + ch)) {
show_coord = true;
hovering = true;
if(mouse_press(mb_left, active)) {
if(node_hovering == -1) {
var _ind = _shf + point_insert * 6;
var _px = (_m[0] - _x) / cw;
var _py = 1 - (_m[1] - _y) / ch;
array_insert(_data, _ind + 0, -1 / 3);
array_insert(_data, _ind + 1, 0);
array_insert(_data, _ind + 2, _px);
array_insert(_data, _ind + 3, _py);
array_insert(_data, _ind + 4, 1 / 3);
array_insert(_data, _ind + 5, 0);
if(onModify(_data))
UNDO_HOLDING = true;
node_dragging = _ind + 2;
node_drag_typ = 0;
} else {
node_dragging = node_hovering;
node_drag_typ = node_hover_typ;
if(node_hover_typ != 0) {
var _cax = _data[node_dragging - 2];
var _cay = _data[node_dragging - 1];
var _cbx = _data[node_dragging + 2];
var _cby = _data[node_dragging + 3];
node_drag_break = key_mod_press(SHIFT);
if(_cax != -_cbx || _cay != -_cby)
node_drag_break = true;
}
}
} else if(mouse_press(mb_right, active)) {
// var node_point = (node_hovering - _shf - 2) / 6;
// if(node_hover_typ == 0 && node_point > 0 && node_point < points - 1) {
// array_delete(_data, _shf + node_point * 6, 6);
// if(onModify(_data)) UNDO_HOLDING = true;
// }
}
if(mouse_press(mb_right, active)) {
var rmx = rx + _m[0];
var rmy = ry + _m[1];
if(node_hovering == -1 || node_hover_typ != 0) {
menuCall("widget_curve", [
menuItemGroup(__txt("Presets"), [
[ [THEME.curve_presets, 0], function() /*=>*/ { onModify(CURVE_DEF_00); } ],
[ [THEME.curve_presets, 1], function() /*=>*/ { onModify(CURVE_DEF_11); } ],
[ [THEME.curve_presets, 2], function() /*=>*/ { onModify(CURVE_DEF_01); } ],
[ [THEME.curve_presets, 3], function() /*=>*/ { onModify(CURVE_DEF_10); } ],
]),
-1,
menuItem(__txt("Reset View"), function() /*=>*/ {
minx = 0; maxx = 1;
miny = 0; maxy = 1;
}),
menuItem(__txt("Grid"), function() /*=>*/ { grid_show = !grid_show; }, noone, noone, function() /*=>*/ {return grid_show}),
menuItem(__txt("Snap to grid"), function() /*=>*/ { grid_snap = !grid_snap; }, noone, noone, function() /*=>*/ {return grid_snap}),
menuItemGroup(__txt("Grid size"), [
[ "1%", function() /*=>*/ { grid_step = 0.01; } ],
[ "5%", function() /*=>*/ { grid_step = 0.05; } ],
[ "10%", function() /*=>*/ { grid_step = 0.10; } ],
[ "25%", function() /*=>*/ { grid_step = 0.25; } ],
]),
menuItem(__txt("Scale Controls"), function() /*=>*/ { scale_control = !scale_control; }, noone, noone, function() /*=>*/ {return scale_control} ),
], rmx, rmy);
} else {
selecting = node_hovering;
select_type = node_hover_typ;
select_data = _data;
var node_point = (selecting - _shf - 2) / 6;
var _menu = [];
array_push(_menu, menuItem(__txt("Reset Controls"), function() /*=>*/ {
var node_point = (selecting - _shf - 2) / 6;
var _ind = _shf + node_point * 6;
select_data[@ _ind + 0] = -1 / 3;
select_data[@ _ind + 1] = 0;
select_data[@ _ind + 4] = 1 / 3;
select_data[@ _ind + 5] = 0;
onModify(select_data);
}));
if(node_point > 0 && node_point < points - 1) {
array_push(_menu, menuItem(__txt("Delete Anchor"), function() /*=>*/ {
var node_point = (selecting - _shf - 2) / 6;
array_delete(select_data, _shf + node_point * 6, 6);
onModify(select_data);
}, THEME.cross));
}
menuCall("widget_curve", _menu, rmx, rmy);
}
}
}
draw_surface(curve_surface, _x, _y);
draw_set_color(COLORS.widget_curve_outline);
draw_rectangle(_x, _y, _x + cw, _y + ch, true);
if(show_coord) {
var tx = _x + cw - ui(6);
var ty = _y + ch - ui(6);
draw_set_text(f_p2, fa_right, fa_bottom, display_sel? COLORS._main_text: COLORS._main_text_sub);
draw_text_add(tx, ty, $"{display_sel == 2? "dy" : "y"}: {string_format(display_pos_y * 100, -1, 2)}%");
ty -= line_get_height();
draw_text_add(tx, ty, $"{display_sel == 2? "dx" : "x"}: {string_format(display_pos_x * 100, -1, 2)}%");
}
show_coord = false;
if(_shf) {
var tby = _y + h - tbh;
var tbw = _w / 2;
tb_shift.setFocusHover(active, hover);
tb_scale.setFocusHover(active, hover);
tb_shift.hide = true;
tb_scale.hide = true;
draw_sprite_stretched_ext(THEME.textbox, 3, _x, tby, _w, tbh, c_white, 1);
draw_sprite_stretched_ext(THEME.textbox, 0, _x, tby, _w, tbh, c_white, 0.5 + 0.5 * interactable);
tb_shift.draw(_x, tby, tbw, tbh, _data[0], _m);
tb_scale.draw(_x + tbw, tby, tbw, tbh, _data[1], _m);
}
resetFocus();
return h;
}
static clone = function() {
var cln = new curveBox(onModify);
return cln;
}
}
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