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color picker

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Роман Пытков
2026-02-26 22:15:23 +03:00
parent 78d586ce3d
commit 19e0daffbd
1 changed files with 18 additions and 38 deletions
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56
src/ui/canvas_view.zig
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@@ -186,7 +186,7 @@ fn handleCanvasZoom(canvas: *Canvas, scroll: anytype) void {
switch (action) {
.wheel_y => |y| {
const viewport_pt = scroll.data().contentRectScale().pointFromPhysical(mouse.p);
var content_pt = dvui.Point{
const content_pt = dvui.Point{
.x = viewport_pt.x + canvas.scroll.viewport.x,
.y = viewport_pt.y + canvas.scroll.viewport.y,
};
@@ -204,13 +204,6 @@ fn handleCanvasZoom(canvas: *Canvas, scroll: anytype) void {
canvas.scroll.viewport.x -= dx;
canvas.scroll.viewport.y -= dy;
content_pt = dvui.Point{
.x = viewport_pt.x + canvas.scroll.viewport.x,
.y = viewport_pt.y + canvas.scroll.viewport.y,
};
const fixed = canvas.contentPointToDocument(content_pt, natural_scale);
std.debug.print("prev: {any}, after: {any}, fixed: {}\n", .{ doc_pt, doc_pt_after, fixed });
},
else => {},
}
@@ -467,14 +460,13 @@ fn drawPropertyEditor(canvas: *Canvas, obj: *Document.Object, prop: *const Prope
}
fn drawColorEditor(canvas: *Canvas, obj: *Document.Object, rgba: u32, is_fill: bool) void {
var comps = rgbaToComponents(rgba);
var changed = false;
changed = dvui.sliderEntry(@src(), "r: {d:0.0}", .{ .value = &comps.r, .min = 0, .max = 255, .interval = 1 }, .{ .expand = .horizontal }) or changed;
changed = dvui.sliderEntry(@src(), "g: {d:0.0}", .{ .value = &comps.g, .min = 0, .max = 255, .interval = 1 }, .{ .expand = .horizontal }) or changed;
changed = dvui.sliderEntry(@src(), "b: {d:0.0}", .{ .value = &comps.b, .min = 0, .max = 255, .interval = 1 }, .{ .expand = .horizontal }) or changed;
changed = dvui.sliderEntry(@src(), "a: {d:0.0}", .{ .value = &comps.a, .min = 0, .max = 255, .interval = 1 }, .{ .expand = .horizontal }) or changed;
if (changed) {
const next = componentsToRgba(comps);
var hsv = dvui.Color.HSV.fromColor(rgbaToColor(rgba));
if (dvui.colorPicker(
@src(),
.{ .hsv = &hsv, .dir = .horizontal, .sliders = .rgb, .alpha = true, .hex_text_entry = true },
.{ .expand = .horizontal },
)) {
const next = colorToRgba(hsv.toColor());
if (is_fill) {
obj.setProperty(canvas.document.allocator, .{ .data = .{ .fill_rgba = next } }) catch {};
} else {
@@ -502,30 +494,18 @@ fn propertyLabel(tag: std.meta.Tag(PropertyData)) []const u8 {
};
}
const RgbaComponents = struct {
r: f32,
g: f32,
b: f32,
a: f32,
};
fn rgbaToComponents(rgba: u32) RgbaComponents {
fn rgbaToColor(rgba: u32) dvui.Color {
return .{
.r = @floatFromInt((rgba >> 24) & 0xFF),
.g = @floatFromInt((rgba >> 16) & 0xFF),
.b = @floatFromInt((rgba >> 8) & 0xFF),
.a = @floatFromInt((rgba >> 0) & 0xFF),
.r = @intCast((rgba >> 24) & 0xFF),
.g = @intCast((rgba >> 16) & 0xFF),
.b = @intCast((rgba >> 8) & 0xFF),
.a = @intCast((rgba >> 0) & 0xFF),
};
}
fn componentsToRgba(comps: RgbaComponents) u32 {
return (@as(u32, toByte(comps.r)) << 24) |
(@as(u32, toByte(comps.g)) << 16) |
(@as(u32, toByte(comps.b)) << 8) |
(@as(u32, toByte(comps.a)) << 0);
}
fn toByte(value: f32) u8 {
const clamped = std.math.clamp(@round(value), 0.0, 255.0);
return @intFromFloat(clamped);
fn colorToRgba(color: dvui.Color) u32 {
return (@as(u32, color.r) << 24) |
(@as(u32, color.g) << 16) |
(@as(u32, color.b) << 8) |
(@as(u32, color.a) << 0);
}