Pixel-Composer/scripts/panel_preview_histogram/panel_preview_histogram.gml
2024-05-22 09:46:29 +07:00

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function Panel_Preview_Histogram() : PanelContent() constructor {
title = __txt("Histogram");
padding = 8;
w = ui(320);
h = ui(240);
bg_surf = surface_create(32, 32);
ch_surf = [ noone, noone, noone, noone, ];
function drawContent(panel) {
draw_clear_alpha(COLORS.panel_bg_clear, 0);
draw_sprite_stretched(THEME.ui_panel_bg, 1, 0, 0, w, h);
var _s = PANEL_PREVIEW.getNodePreviewSurface();
if(!surface_exists(_s)) return;
bg_surf = surface_verify(bg_surf, 32, 32);
for (var i = 0, n = array_length(ch_surf); i < n; i++)
ch_surf[i] = surface_verify(ch_surf[i], w, h);
gpu_set_texfilter(true);
surface_set_target(bg_surf);
DRAW_CLEAR
draw_surface_stretched(_s, 0, 0, 32, 32);
surface_reset_target();
gpu_set_texfilter(false);
for(var i = 0; i < 4; i++)
surface_set_target_ext(i, ch_surf[i]);
shader_set(sh_preview_histogram);
DRAW_CLEAR
shader_set_surface("surface", bg_surf);
shader_set_color("color", CDEF.main_grey);
draw_sprite_stretched(s_fx_pixel, 0, 0, 0, w, h);
shader_reset();
surface_reset_target();
draw_surface_ext(ch_surf[0], 0, 0, 1, 1, 0, CDEF.main_grey, 1);
shader_set(sh_preview_histogram_outline);
shader_set_f("dimension", w, h);
draw_surface_ext(ch_surf[1], 0, 0, 1, 1, 0, c_red, 1);
draw_surface_ext(ch_surf[2], 0, 0, 1, 1, 0, c_lime, 1);
draw_surface_ext(ch_surf[3], 0, 0, 1, 1, 0, c_blue, 1);
shader_reset();
}
}