rpuzonas/daq-view
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

refactor ui

Browse Source
This commit is contained in:
Rokas Puzonas 2025-02-02 00:59:24 +02:00
parent 160b7778ce
commit 43b6ca0ff2
12 changed files with 1568 additions and 775 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

615
src/app.zig
View File

@ -1,22 +1,17 @@
const std = @import("std");
const rl = @import("raylib");
const TaskPool = @import("./task-pool.zig");
const FontFace = @import("./font-face.zig");
const Graph = @import("./ui/graph.zig");
const srcery = @import("./srcery.zig");
const UI = @import("./ui.zig");
const Platform = @import("./platform.zig");
const Assets = @import("./assets.zig");
const Graph = @import("./graph.zig");
const NIDaq = @import("ni-daq.zig");
const Theme = @import("./theme.zig");
const RectUtils = @import("./rect-utils.zig");
const UI = @import("./ui/root.zig");
const showButton = @import("./ui/button.zig").showButton;
const rect_utils = @import("./rect-utils.zig");
const remap = @import("./utils.zig").remap;
const Aseprite = @import("./aseprite.zig");
const log = std.log.scoped(.app);
const Allocator = std.mem.Allocator;
const assert = std.debug.assert;
const Vec2 = rl.Vector2;
const clamp = std.math.clamp;
const App = @This();
@ -24,7 +19,7 @@ const Channel = struct {
view_cache: Graph.Cache = .{},
view_rect: Graph.ViewOptions,
dragged_marker: ?enum { from, to, both } = null,
height: f32 = 150,
min_value: f64,
max_value: f64,
@ -33,83 +28,73 @@ const Channel = struct {
},
};
allocator: Allocator,
channels: std.ArrayList(Channel),
channel_samples: ?*TaskPool.ChannelSamples = null,
task_pool: TaskPool,
ni_daq: NIDaq,
start_time_ns: i128,
view_from: f32 = 0,
view_width: f32 = 5000,
allocator: std.mem.Allocator,
ui: UI,
channels: std.BoundedArray(Channel, 64) = .{},
ni_daq: NIDaq,
grab_texture: struct {
normal: rl.Texture2D,
hot: rl.Texture2D,
active: rl.Texture2D,
},
pub fn init(
allocator: Allocator,
task_pool_options: TaskPool.Options,
nidaq_options: NIDaq.Options
) !App {
// TODO: Maybe store a compressed version of aseprite files when embedding?
// Setup a build step to compress the files
const grab_ase = try Aseprite.init(allocator, @embedFile("./assets/grab-marker.ase"));
defer grab_ase.deinit();
const grab_normal_image = grab_ase.getTagImage(grab_ase.getTag("normal") orelse return error.TagNotFound);
defer rl.unloadImage(grab_normal_image);
const grab_normal_texture = rl.loadTextureFromImage(grab_normal_image);
const grab_hot_image = grab_ase.getTagImage(grab_ase.getTag("hot") orelse return error.TagNotFound);
defer rl.unloadImage(grab_hot_image);
const grab_hot_texture = rl.loadTextureFromImage(grab_hot_image);
const grab_active_image = grab_ase.getTagImage(grab_ase.getTag("active") orelse return error.TagNotFound);
defer rl.unloadImage(grab_active_image);
const grab_active_texture = rl.loadTextureFromImage(grab_active_image);
pub fn init(allocator: std.mem.Allocator) !App {
return App{
.allocator = allocator,
.task_pool = try TaskPool.init(allocator, task_pool_options),
.channels = std.ArrayList(Channel).init(allocator),
.ni_daq = try NIDaq.init(allocator, nidaq_options),
.start_time_ns = std.time.nanoTimestamp(),
.ui = UI.init(),
.grab_texture = .{
.normal = grab_normal_texture,
.hot = grab_hot_texture,
.active = grab_active_texture
}
.ui = UI.init(allocator),
.ni_daq = try NIDaq.init(allocator, .{
.max_devices = 4,
.max_analog_inputs = 32,
.max_analog_outputs = 8,
.max_counter_outputs = 8,
.max_counter_inputs = 8,
.max_analog_input_voltage_ranges = 4,
.max_analog_output_voltage_ranges = 4
}),
};
}
pub fn deinit(self: *App) void {
for (self.channels.items) |*channel| {
if (channel.samples == .owned) {
self.allocator.free(channel.samples.owned);
self.ni_daq.deinit(self.allocator);
for (self.channels.slice()) |*channel| {
switch (channel.samples) {
.owned => |owned| self.allocator.free(owned)
}
channel.view_cache.deinit();
}
self.channels.deinit();
self.task_pool.deinit(self.allocator);
self.ni_daq.deinit(self.allocator);
rl.unloadTexture(self.grab_texture.normal);
rl.unloadTexture(self.grab_texture.hot);
rl.unloadTexture(self.grab_texture.active);
self.ui.deinit();
}
fn readSamplesFromFile(allocator: Allocator, file: std.fs.File) ![]f64 {
fn showButton(self: *App, text: []const u8) UI.Interaction {
var button = self.ui.newWidget(self.ui.keyFromString(text));
button.border = srcery.bright_blue;
button.padding.vertical(8);
button.padding.horizontal(16);
button.flags.insert(.clickable);
button.size = .{
.x = .{ .text = {} },
.y = .{ .text = {} },
};
const interaction = self.ui.getInteraction(button);
var text_color: rl.Color = undefined;
if (interaction.held_down) {
button.background = srcery.hard_black;
text_color = srcery.white;
} else if (interaction.hovering) {
button.background = srcery.bright_black;
text_color = srcery.bright_white;
} else {
button.background = srcery.blue;
text_color = srcery.bright_white;
}
button.text = .{
.content = text,
.color = text_color
};
return interaction;
}
fn readSamplesFromFile(allocator: std.mem.Allocator, file: std.fs.File) ![]f64 {
try file.seekTo(0);
const byte_count = try file.getEndPos();
assert(byte_count % 8 == 0);
@ -132,10 +117,6 @@ fn readSamplesFromFile(allocator: Allocator, file: std.fs.File) ![]f64 {
return samples;
}
fn nanoToSeconds(ns: i128) f32 {
return @as(f32, @floatFromInt(ns)) / std.time.ns_per_s;
}
pub fn appendChannelFromFile(self: *App, file: std.fs.File) !void {
const samples = try readSamplesFromFile(self.allocator, file);
errdefer self.allocator.free(samples);
@ -162,322 +143,204 @@ pub fn appendChannelFromFile(self: *App, file: std.fs.File) !void {
});
}
fn showChannelMinimap(self: *App, channel: *Channel, minimap_rect: rl.Rectangle) void {
const MarkerState = enum {
normal,
hot,
active
};
var from_state = MarkerState.normal;
var to_state = MarkerState.normal;
var area_state = MarkerState.normal;
const sample_count = channel.samples.owned.len;
const sample_count_f32: f32 = @floatFromInt(sample_count);
const grab_marker_width: f32 = @floatFromInt(self.grab_texture.normal.width);
const view_column_min = RectUtils.left(minimap_rect) + grab_marker_width/2;
const view_column_max = RectUtils.right(minimap_rect) - grab_marker_width/2;
const from_column_position = remap(f32,
0,
sample_count_f32,
view_column_min,
view_column_max,
channel.view_rect.from
);
const to_column_position = remap(f32,
0,
sample_count_f32,
view_column_min,
view_column_max,
channel.view_rect.to
);
const visible_area_rect = rl.Rectangle{
.x = from_column_position,
.y = minimap_rect.y,
.width = to_column_position - from_column_position,
.height = minimap_rect.height
};
const mouse = self.ui.getMousePosition();
if (RectUtils.isInsideVec2(minimap_rect, mouse)) {
rl.drawRectangleLinesEx(minimap_rect, 1, rl.Color.gray);
const grab_distance = 20;
if (@abs(mouse.x - from_column_position) < grab_distance) {
from_state = .hot;
} else if (@abs(mouse.x - to_column_position) < grab_distance) {
to_state = .hot;
} else if (RectUtils.isInsideVec2(visible_area_rect, mouse)) {
area_state = .hot;
}
if (rl.isMouseButtonPressed(.mouse_button_left)) {
if (area_state == .hot) {
channel.dragged_marker = .both;
} else if (from_state == .hot) {
channel.dragged_marker = .from;
} else if (to_state == .hot) {
channel.dragged_marker = .to;
}
}
} else {
rl.drawRectangleLinesEx(minimap_rect, 1, rl.Color.black);
}
if (rl.isMouseButtonReleased(.mouse_button_left)) {
channel.dragged_marker = null;
}
const sample_under_mouse = remap(f32,
view_column_min,
view_column_max,
0,
sample_count_f32,
mouse.x
);
if (channel.dragged_marker) |marker| {
const min_shown_samples = 1000;
switch (marker) {
.from => {
from_state = .active;
channel.view_rect.from = std.math.clamp(sample_under_mouse, 0, channel.view_rect.to-min_shown_samples);
},
.to => {
to_state = .active;
channel.view_rect.to = std.math.clamp(sample_under_mouse, channel.view_rect.from+min_shown_samples, @as(f32, sample_count_f32));
},
.both => {
area_state = .active;
from_state = .active;
to_state = .active;
var delta = remap(f32,
0,
minimap_rect.width,
0,
sample_count_f32,
self.ui.getMouseDelta().x
);
delta = std.math.clamp(delta, -channel.view_rect.from, sample_count_f32 - channel.view_rect.to);
channel.view_rect.from += delta;
channel.view_rect.to += delta;
}
}
}
rl.drawRectangleRec(visible_area_rect, rl.Color.gray);
{
const texture = switch (from_state) {
.normal => self.grab_texture.normal,
.hot => self.grab_texture.hot,
.active => self.grab_texture.active
};
rl.drawTextureV(
texture,
.{
.x = from_column_position - @as(f32, @floatFromInt(texture.width)) / 2,
.y = RectUtils.top(minimap_rect)
},
rl.Color.white
);
}
{
const texture = switch (to_state) {
.normal => self.grab_texture.normal,
.hot => self.grab_texture.hot,
.active => self.grab_texture.active
};
rl.drawTextureV(
texture,
.{
.x = to_column_position - @as(f32, @floatFromInt(texture.width)) / 2,
.y = RectUtils.top(minimap_rect)
},
rl.Color.white
);
}
}
const graph_height = 128;
const minimap_height = 16;
const channel_height = graph_height + minimap_height;
fn showChannelRow(self: *App, channel: *Channel, channel_rect: rl.Rectangle) void {
const graph_rect, const minimap_rect = RectUtils.horizontalSplit(channel_rect, graph_height);
{ // Graph
Graph.draw(
&self.ui,
&channel.view_cache,
graph_rect,
channel.view_rect,
channel.samples.owned
);
rl.drawRectangleLinesEx(graph_rect, 1, rl.Color.black);
}
self.showChannelMinimap(channel, minimap_rect);
}
pub fn tick(self: *App) !void {
// const dt = rl.getFrameTime();
rl.beginDrawing();
defer rl.endDrawing();
rl.clearBackground(Theme.color_bg);
const window_width: f32 = @floatFromInt(rl.getScreenWidth());
const window_height: f32 = @floatFromInt(rl.getScreenHeight());
const window_rect = rl.Rectangle.init(0, 0, window_width, window_height);
const split_x = 120;
const controls_rect, const graphs_rect = RectUtils.verticalSplit(window_rect, split_x);
_ = controls_rect;
rl.drawLineV(
.{ .x = window_rect.x + split_x, .y = RectUtils.top(window_rect) },
.{ .x = window_rect.x + split_x, .y = RectUtils.bottom(window_rect) },
Theme.color_border
);
if (showButton(&self.ui, @src(), .{
.box = .{ .x = 10, .y = 10, .width = 100, .height = 100 },
.text = "Load file"
})) {
if (Platform.openFilePicker()) |file| {
defer file.close();
// TODO: Handle error
try self.appendChannelFromFile(file);
} else |err| {
// TODO: Show error message to user;
log.err("Failed to pick file: {}", .{ err });
}
}
{
var channels_stack = UI.Stack.init(RectUtils.shrink(graphs_rect, 10), .top_to_bottom);
for (self.channels.items) |*channel| {
self.showChannelRow(channel, channels_stack.next(channel_height));
}
}
// rl.drawLineV(
// Vec2.init(0, window_height/2),
// Vec2.init(window_width, window_height/2),
// rl.Color.gray
// );
// if (self.channel_samples) |channel_samples| {
// channel_samples.mutex.lock();
// for (0.., channel_samples.samples) |channel_index, samples| {
// const channel = self.channels.items[channel_index];
// Graph.draw(
// rl.Rectangle{
// .x = 20,
// .y = 20,
// .width = window_width - 40,
// .height = window_height - 40
// },
// .{
// .from = self.view_from,
// .to = self.view_from + self.view_width,
// .min_value = channel.min_sample,
// .max_value = channel.max_sample
// },
// samples.items
// );
// }
// channel_samples.mutex.unlock();
// }
// drawGraph(
// rl.Rectangle{
// .x = 100,
// .y = 20,
// .width = window_width - 200,
// .height = window_height - 40
// },
// .{
// .from = view_from,
// .to = view_from + view_width,
// .min_value = -1,
// .max_value = 1
// },
// example_samples1
// );
// const move_speed = self.view_width * 0.25;
// if (rl.isKeyDown(.key_d)) {
// self.view_from += move_speed * dt;
// }
// if (rl.isKeyDown(.key_a)) {
// self.view_from -= move_speed * dt;
// }
// const zoom_speed = 0.5;
// if (rl.isKeyDown(.key_w)) {
// self.view_width *= (1 - zoom_speed * dt);
// }
// if (rl.isKeyDown(.key_s)) {
// self.view_width *= (1 + zoom_speed * dt);
// }
rl.clearBackground(srcery.black);
if (rl.isKeyPressed(rl.KeyboardKey.key_f3)) {
Platform.toggleConsoleWindow();
}
// const now_ns = std.time.nanoTimestamp();
// const now_since_start = nanoToSeconds(now_ns - self.start_time_ns);
// const now_since_samping_start = nanoToSeconds(now_ns - self.channel_samples.started_sampling_ns.?);
{
// const font_face = self.font_face;
// const allocator = self.allocator;
self.ui.begin();
defer self.ui.end();
self.ui.getParent().?.layout_axis = .Y;
// var y: f32 = 10;
// try font_face.drawTextAlloc(allocator, "Time: {d:.03}", .{now_since_start}, Vec2.init(10, y), rl.Color.black);
// y += 10;
{
const toolbar = self.ui.newBoxFromString("Toolbar");
toolbar.flags.insert(.clickable);
toolbar.background = rl.Color.green;
toolbar.layout_axis = .X;
toolbar.size = .{
.x = UI.Size.percent(1, 0),
.y = UI.Size.pixels(32, 1),
};
self.ui.pushParent(toolbar);
defer self.ui.popParent();
// try font_face.drawTextAlloc(allocator, "View from: {d:.03}", .{self.view_from}, Vec2.init(10, y), rl.Color.black);
// y += 10;
{
const box = self.ui.newBoxFromString("Add from file");
box.flags.insert(.clickable);
box.background = rl.Color.red;
box.size = .{
.x = UI.Size.text(2, 1),
.y = UI.Size.percent(1, 1)
};
box.setText("Add from file", .text);
// try font_face.drawTextAlloc(allocator, "View width: {d:.03}", .{self.view_width}, Vec2.init(10, y), rl.Color.black);
// y += 10;
const signal = self.ui.signalFromBox(box);
if (signal.clicked()) {
if (Platform.openFilePicker()) |file| {
defer file.close();
// try font_face.drawTextAlloc(allocator, "Dropped samples: {d:.03}", .{self.task_pool.droppedSamples()}, Vec2.init(10, y), rl.Color.black);
// y += 10;
// TODO: Handle error
self.appendChannelFromFile(file) catch @panic("Failed to append channel from file");
} else |err| {
// TODO: Show error message to user;
log.err("Failed to pick file: {}", .{ err });
}
}
}
// for (0..self.channels.items.len) |i| {
// const sample_count = channel_samples.samples[i].items.len;
// y += 10;
{
const box = self.ui.newBoxFromString("Add from device");
box.flags.insert(.clickable);
box.background = rl.Color.lime;
box.size = .{
.x = UI.Size.text(2, 1),
.y = UI.Size.percent(1, 1)
};
box.setText("Add from device", .text);
// try font_face.drawTextAlloc(allocator, "Channel {}:", .{i + 1}, Vec2.init(10, y), rl.Color.black);
// y += 10;
const signal = self.ui.signalFromBox(box);
if (signal.clicked()) {
std.debug.print("click two!\n", .{});
}
}
}
// try font_face.drawTextAlloc(allocator, "Sample count: {}", .{sample_count}, Vec2.init(20, y), rl.Color.black);
// y += 10;
{
const rows_container = self.ui.newBoxFromString("Channels");
rows_container.layout_axis = .Y;
rows_container.size = .{
.x = UI.Size.percent(1, 1),
.y = UI.Size.percent(1, 0),
};
self.ui.pushParent(rows_container);
defer self.ui.popParent();
// try font_face.drawTextAlloc(allocator, "Sample rate: {d:.03}", .{@as(f64, @floatFromInt(sample_count)) / now_since_samping_start}, Vec2.init(20, y), rl.Color.black);
// y += 10;
// }
for (self.channels.slice()) |*_channel| {
const channel: *Channel = _channel;
const channel_box = self.ui.newBoxFromPtr(channel);
channel_box.background = rl.Color.blue;
channel_box.layout_axis = .Y;
channel_box.size.x = UI.Size.percent(1, 0);
channel_box.size.y = UI.Size.childrenSum(1);
self.ui.pushParent(channel_box);
defer self.ui.popParent();
const graph_box = self.ui.newBoxFromString("Graph");
graph_box.background = rl.Color.blue;
graph_box.layout_axis = .Y;
graph_box.size.x = UI.Size.percent(1, 0);
graph_box.size.y = UI.Size.pixels(256, 1);
Graph.drawCached(&channel.view_cache, graph_box.persistent.size, channel.view_rect, channel.samples.owned);
if (channel.view_cache.texture) |texture| {
graph_box.texture = texture.texture;
}
{
const sample_count: f32 = @floatFromInt(channel.samples.owned.len);
const min_visible_samples = sample_count*0.02;
const minimap_box = self.ui.newBoxFromString("Minimap");
minimap_box.background = rl.Color.dark_purple;
minimap_box.layout_axis = .X;
minimap_box.size.x = UI.Size.percent(1, 0);
minimap_box.size.y = UI.Size.pixels(32, 1);
self.ui.pushParent(minimap_box);
defer self.ui.popParent();
const minimap_rect = minimap_box.computedRect();
{
const middle_box = self.ui.newBoxFromString("Middle knob");
middle_box.flags.insert(.clickable);
middle_box.flags.insert(.draggable);
middle_box.background = rl.Color.ray_white;
middle_box.size.y = UI.Size.pixels(32, 1);
const signal = self.ui.signalFromBox(middle_box);
if (signal.dragged()) {
var samples_moved = signal.drag.x / minimap_rect.width * sample_count;
samples_moved = clamp(samples_moved, -channel.view_rect.from, sample_count - channel.view_rect.to);
channel.view_rect.from += samples_moved;
channel.view_rect.to += samples_moved;
}
middle_box.override_x = minimap_rect.width * channel.view_rect.from / sample_count + 4;
middle_box.size.x = UI.Size.pixels(minimap_rect.width * (channel.view_rect.to - channel.view_rect.from) / sample_count - 8, 1);
}
{
const left_knob_box = self.ui.newBoxFromString("Left knob");
left_knob_box.flags.insert(.clickable);
left_knob_box.flags.insert(.draggable);
left_knob_box.background = rl.Color.ray_white;
left_knob_box.size.x = UI.Size.pixels(8, 1);
left_knob_box.size.y = UI.Size.pixels(32, 1);
const left_signal = self.ui.signalFromBox(left_knob_box);
if (left_signal.dragged()) {
channel.view_rect.from += remap(
f32,
0, minimap_rect.width,
0, sample_count,
left_signal.drag.x
);
channel.view_rect.from = clamp(channel.view_rect.from, 0, channel.view_rect.to-min_visible_samples);
}
left_knob_box.override_x = minimap_rect.width * channel.view_rect.from / sample_count - left_knob_box.persistent.size.x/2;
}
{
const right_knob_box = self.ui.newBoxFromString("Right knobaaa");
right_knob_box.flags.insert(.clickable);
right_knob_box.flags.insert(.draggable);
right_knob_box.background = rl.Color.ray_white;
right_knob_box.size.x = UI.Size.pixels(8, 1);
right_knob_box.size.y = UI.Size.pixels(32, 1);
const right_signal = self.ui.signalFromBox(right_knob_box);
if (right_signal.dragged()) {
channel.view_rect.to += remap(
f32,
0, minimap_rect.width,
0, sample_count,
right_signal.drag.x
);
channel.view_rect.to = clamp(channel.view_rect.to, channel.view_rect.from+min_visible_samples, sample_count);
}
right_knob_box.override_x = minimap_rect.width * channel.view_rect.to / sample_count - right_knob_box.persistent.size.x/2;
}
}
// const graph_widget = self.ui.newWidget(self.ui.keyFromString("samples-plot"));
// graph_widget.size.y = .{ .pixels = channel.height };
// graph_widget.size.x = .{ .percent = 1 };
// graph_widget.graph = .{
// .cache = &channel.view_cache,
// .options = channel.view_rect,
// .samples = channel.samples.owned
// };
// const minimap_widget = self.showChannelMinimap(channel);
// minimap_widget.size.y = .fit_children;
// minimap_widget.size.x = .{ .percent = 1 };
}
}
}
rl.drawFPS(@as(i32, @intFromFloat(window_width)) - 100, 10);
self.ui.draw();
}

88
src/assets.zig Normal file
View File

@ -0,0 +1,88 @@
const std = @import("std");
const rl = @import("raylib");
const srcery = @import("./srcery.zig");
const FontFace = @import("./font-face.zig");
const Aseprite = @import("./aseprite.zig");
const assert = std.debug.assert;
pub const FontId = enum {
text
};
var loaded_fonts: std.BoundedArray(rl.Font, 32) = .{};
const FontArray = std.EnumArray(FontId, FontFace);
var fonts: FontArray = FontArray.initUndefined();
pub var grab_texture: struct {
normal: rl.Texture2D,
hot: rl.Texture2D,
active: rl.Texture2D,
} = undefined;
pub fn font(font_id: FontId) FontFace {
return fonts.get(font_id);
}
pub fn init(allocator: std.mem.Allocator) !void {
const roboto_regular = @embedFile("./assets/fonts/roboto/Roboto-Regular.ttf");
const default_font = try loadFont(roboto_regular, 16);
fonts = FontArray.init(.{
.text = FontFace{ .font = default_font, .line_height = 1.2 }
});
const grab_ase = try Aseprite.init(allocator, @embedFile("./assets/grab-marker.ase"));
defer grab_ase.deinit();
const grab_normal_image = grab_ase.getTagImage(grab_ase.getTag("normal") orelse return error.TagNotFound);
defer grab_normal_image.unload();
const grab_normal_texture = rl.loadTextureFromImage(grab_normal_image);
errdefer grab_normal_texture.unload();
const grab_hot_image = grab_ase.getTagImage(grab_ase.getTag("hot") orelse return error.TagNotFound);
defer grab_hot_image.unload();
const grab_hot_texture = rl.loadTextureFromImage(grab_hot_image);
errdefer grab_hot_texture.unload();
const grab_active_image = grab_ase.getTagImage(grab_ase.getTag("active") orelse return error.TagNotFound);
defer grab_active_image.unload();
const grab_active_texture = rl.loadTextureFromImage(grab_active_image);
errdefer grab_active_texture.unload();
grab_texture = .{
.normal = grab_normal_texture,
.hot = grab_hot_texture,
.active = grab_active_texture
};
}
fn loadFont(ttf_data: []const u8, font_size: u32) !rl.Font {
var codepoints: [95]i32 = undefined;
for (0..codepoints.len) |i| {
codepoints[i] = @as(i32, @intCast(i)) + 32;
}
const loaded_font = rl.loadFontFromMemory(".ttf", ttf_data, @intCast(font_size), &codepoints);
if (!loaded_font.isReady()) {
return error.LoadFontFromMemory;
}
loaded_fonts.appendAssumeCapacity(loaded_font);
return loaded_font;
}
pub fn deinit(allocator: std.mem.Allocator) void {
_ = allocator;
for (loaded_fonts.slice()) |loaded_font| {
loaded_font.unload();
}
grab_texture.active.unload();
grab_texture.hot.unload();
grab_texture.normal.unload();
}

202
src/assets/fonts/roboto/LICENSE.txt Normal file
View File

@ -0,0 +1,202 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

BIN
src/assets/fonts/roboto/Roboto-Regular.ttf Normal file
View File

Binary file not shown.

4
src/font-face.zig
View File

@ -18,6 +18,10 @@ pub fn getSize(self: @This()) f32 {
return @floatFromInt(self.font.baseSize);
}
pub fn getLineSize(self: @This()) f32 {
return self.getSize() * self.line_height;
}
pub fn drawTextLines(self: @This(), lines: []const []const u8, position: rl.Vector2, tint: rl.Color) void {
var offset_y: f32 = 0;

115
src/ui/graph.zig → src/graph.zig
View File

@ -1,10 +1,9 @@
const builtin = @import("builtin");
const std = @import("std");
const rl = @import("raylib");
const Theme = @import("../theme.zig");
const UI = @import("./root.zig");
const srcery = @import("./srcery.zig");
const remap = @import("../utils.zig").remap;
const remap = @import("./utils.zig").remap;
const assert = std.debug.assert;
const Vec2 = rl.Vector2;
const clamp = std.math.clamp;
@ -23,7 +22,7 @@ pub const ViewOptions = struct {
min_value: f64,
max_value: f64,
left_aligned: bool = true,
color: rl.Color = Theme.color_graph,
color: rl.Color = srcery.red,
dot_size: f32 = 2
};
@ -49,7 +48,7 @@ pub const Cache = struct {
.x = 0,
.y = 0,
.width = @floatFromInt(texture.texture.width),
.height = @floatFromInt(-texture.texture.height)
.height = @floatFromInt(texture.texture.height)
};
rl.drawTexturePro(
texture.texture,
@ -97,7 +96,7 @@ fn clampIndexUsize(value: f32, size: usize) usize {
return @intFromFloat(clamp(value, 0, size_f32));
}
fn drawSamples(ui: *UI, draw_rect: rl.Rectangle, options: ViewOptions, samples: []const f64) void {
fn drawSamples(draw_rect: rl.Rectangle, options: ViewOptions, samples: []const f64) void {
assert(options.left_aligned); // TODO:
assert(options.to >= options.from);
@ -154,8 +153,13 @@ fn drawSamples(ui: *UI, draw_rect: rl.Rectangle, options: ViewOptions, samples:
}
}
} else {
ui.beginScissorModeRect(draw_rect);
defer ui.endScissorMode();
rl.beginScissorMode(
@intFromFloat(draw_rect.x),
@intFromFloat(draw_rect.y),
@intFromFloat(draw_rect.width),
@intFromFloat(draw_rect.height),
);
defer rl.endScissorMode();
{
const from_index = clampIndexUsize(@floor(options.from), samples.len);
@ -185,56 +189,69 @@ fn drawSamples(ui: *UI, draw_rect: rl.Rectangle, options: ViewOptions, samples:
}
}
pub fn draw(ui: *UI, cache: ?*Cache, draw_rect: rl.Rectangle, options: ViewOptions, samples: []const f64) void {
if (disable_caching) {
drawSamples(ui, draw_rect, options, samples);
pub fn drawCached(cache: *Cache, render_size: Vec2, options: ViewOptions, samples: []const f64) void {
const render_width: i32 = @intFromFloat(@ceil(render_size.x));
const render_height: i32 = @intFromFloat(@ceil(render_size.y));
if (render_width <= 0 or render_height <= 0) {
return;
}
if (cache) |c| {
const render_width: i32 = @intFromFloat(@ceil(draw_rect.width));
const render_height: i32 = @intFromFloat(@ceil(draw_rect.height));
// Unload render texture if rendering width or height changed
if (c.texture) |render_texture| {
const texure = render_texture.texture;
if (texure.width != render_width or texure.height != render_height) {
render_texture.unload();
c.texture = null;
c.options = null;
}
// Unload render texture if rendering width or height changed
if (cache.texture) |render_texture| {
const texure = render_texture.texture;
if (texure.width != render_width or texure.height != render_height) {
render_texture.unload();
cache.texture = null;
cache.options = null;
}
if (c.texture == null) {
const texture = rl.loadRenderTexture(render_width, render_height);
// TODO: Maybe fallback to just drawing without caching, if GPU doesn't have enough memory?
assert(rl.isRenderTextureReady(texture));
c.texture = texture;
}
const render_texture = c.texture.?;
if (c.options != null and std.meta.eql(c.options.?, options)) {
c.draw(draw_rect);
return;
}
c.options = options;
render_texture.begin();
ui.pushTransform();
ui.transformTranslate(-draw_rect.x, -draw_rect.y);
rl.clearBackground(rl.Color.black.alpha(0));
}
drawSamples(ui, draw_rect, options, samples);
if (cache.texture == null) {
const texture = rl.loadRenderTexture(render_width, render_height);
// TODO: Maybe fallback to just drawing without caching, if GPU doesn't have enough memory?
assert(rl.isRenderTextureReady(texture));
cache.texture = texture;
}
if (cache) |c| {
ui.popTransform();
const render_texture = cache.texture.?;
const render_texture = c.texture.?;
render_texture.end();
if (cache.options != null and std.meta.eql(cache.options.?, options)) {
// Cached graph hasn't changed, no need to redraw.
return;
}
cache.options = options;
render_texture.begin();
defer render_texture.end();
rl.gl.rlPushMatrix();
defer rl.gl.rlPopMatrix();
rl.clearBackground(rl.Color.black.alpha(0));
rl.gl.rlTranslatef(0, render_size.y, 0);
rl.gl.rlScalef(1, -1, 1);
const draw_rect = rl.Rectangle{
.x = 0,
.y = 0,
.width = render_size.x,
.height = render_size.y
};
drawSamples(draw_rect, options, samples);
}
pub fn draw(cache: ?*Cache, draw_rect: rl.Rectangle, options: ViewOptions, samples: []const f64) void {
if (draw_rect.width < 0 or draw_rect.height < 0) {
return;
}
if (cache != null and !disable_caching) {
const c = cache.?;
drawCached(c, .{ .x = draw_rect.width, .y = draw_rect.height }, options, samples);
c.draw(draw_rect);
} else {
drawSamples(draw_rect, options, samples);
}
}

57
src/main.zig
View File

@ -2,7 +2,7 @@ const std = @import("std");
const rl = @import("raylib");
const builtin = @import("builtin");
const Application = @import("./app.zig");
const Theme = @import("./theme.zig");
const Assets = @import("./assets.zig");
const raylib_h = @cImport({
@cInclude("stdio.h");
@cInclude("raylib.h");
@ -10,6 +10,14 @@ const raylib_h = @cImport({
const log = std.log;
// TODO: Maybe move this to a config.zig or options.zig file.
// Have all of the contstants in a single file.
pub const version = std.SemanticVersion{
.major = 0,
.minor = 1,
.patch = 0
};
fn toRaylibLogLevel(log_level: log.Level) rl.TraceLogLevel {
return switch (log_level) {
.err => rl.TraceLogLevel.log_error,
@ -62,30 +70,6 @@ pub fn main() !void {
// const devices = try ni_daq.listDeviceNames();
// log.info("NI-DAQ version: {}", .{try NIDaq.version()});
// std.debug.print("Devices ({}):\n", .{devices.len});
// for (devices) |device| {
// std.debug.print(" * '{s}' ({})\n", .{device, device.len});
// const analog_inputs = try ni_daq.listDeviceAIPhysicalChannels(device);
// for (analog_inputs) |channel_name| {
// std.debug.print(" * '{s}' (Analog input)\n", .{channel_name});
// }
// for (try ni_daq.listDeviceAOPhysicalChannels(device)) |channel_name| {
// std.debug.print(" * '{s}' (Analog output)\n", .{channel_name});
// }
// for (try ni_daq.listDeviceCOPhysicalChannels(device)) |channel_name| {
// std.debug.print(" * '{s}' (Counter output)\n", .{channel_name});
// }
// for (try ni_daq.listDeviceCIPhysicalChannels(device)) |channel_name| {
// std.debug.print(" * '{s}' (Counter input)\n", .{channel_name});
// }
// }
// for (devices) |device| {
// if (try ni_daq.checkDeviceAIMeasurementType(device, .Voltage)) {
// const voltage_ranges = try ni_daq.listDeviceAIVoltageRanges(device);
@ -147,31 +131,17 @@ pub fn main() !void {
rl.initWindow(800, 450, "DAQ view");
defer rl.closeWindow();
rl.setWindowState(.{ .window_resizable = true, .vsync_hint = true });
rl.setWindowMinSize(256, 256);
rl.setWindowIcon(icon_image);
if (builtin.mode != .Debug) {
rl.setExitKey(.key_null);
}
try Theme.init();
defer Theme.deinit();
try Assets.init(allocator);
defer Assets.deinit(allocator);
var app = try Application.init(
allocator,
.{
.max_tasks = 32, // devices.len * 2,
.max_channels = 64
},
.{
.max_devices = 4,
.max_analog_inputs = 32,
.max_analog_outputs = 8,
.max_counter_outputs = 8,
.max_counter_inputs = 8,
.max_analog_input_voltage_ranges = 4,
.max_analog_output_voltage_ranges = 4
}
);
var app = try Application.init(allocator);
defer app.deinit();
if (builtin.mode == .Debug) {
@ -188,7 +158,6 @@ pub fn main() !void {
}
}
while (!rl.windowShouldClose()) {
try app.tick();
}

2
src/ni-daq.zig
View File

@ -368,6 +368,7 @@ const DeviceBuffers = struct {
}
};
options: Options,
device_names_buffer: []u8,
device_names: StringArrayListUnmanaged,
@ -390,6 +391,7 @@ pub fn init(allocator: std.mem.Allocator, options: Options) !NIDaq {
}
return NIDaq{
.options = options,
.device_names_buffer = device_names_buffer,
.device_names = device_names,
.device_buffers = device_buffers

40
src/theme.zig
View File

@ -1,40 +0,0 @@
const std = @import("std");
const rl = @import("raylib");
const srcery = @import("./srcery.zig");
const FontFace = @import("./font-face.zig");
const assert = std.debug.assert;
// TODO: Maybe don't have this as a global? Pass the theme around where it is needed.
//
// But for now, having it as a global is very convenient.
pub const FontId = enum {
text
};
const FontArray = std.EnumArray(FontId, FontFace);
var fonts: FontArray = FontArray.initUndefined();
pub const color_bg = srcery.black;
pub const color_border = srcery.bright_black;
pub const color_button = srcery.xgray7;
pub const color_text = srcery.bright_white;
pub const color_graph = srcery.red;
pub fn font(font_id: FontId) FontFace {
return fonts.get(font_id);
}
pub fn init() !void {
const default_font = rl.getFontDefault();
assert(default_font.isReady());
fonts = FontArray.init(.{
.text = FontFace{ .font = default_font }
});
}
pub fn deinit() void {
// TODO: Deinit fonts
}

954
src/ui.zig Normal file
View File

@ -0,0 +1,954 @@
const std = @import("std");
const rl = @import("raylib");
const Assets = @import("./assets.zig");
const rect_utils = @import("./rect-utils.zig");
const srcery = @import("./srcery.zig");
const log = std.lgo.scoped(.ui);
const assert = std.debug.assert;
const Vec2 = rl.Vector2;
const Rect = rl.Rectangle;
const UI = @This();
const debug = false;
const max_boxes = 128;
const max_events = 256;
const RectFormatted = struct {
rect: ?Rect,
pub fn init(rect: ?Rect) RectFormatted {
return RectFormatted{
.rect = rect
};
}
pub fn format(
self: RectFormatted,
comptime fmt: []const u8,
options: std.fmt.FormatOptions,
writer: anytype,
) !void {
_ = fmt;
_ = options;
if (self.rect) |rect| {
try writer.print("Rect{{ {d:.02}, {d:.02}, {d:.02}, {d:.02} }}", .{ rect.x, rect.y, rect.width, rect.height });
} else {
try writer.print("{}", .{ null });
}
}
};
const Axis = enum {
X,
Y,
fn flip(self: Axis) Axis {
return switch (self) {
.X => .Y,
.Y => .X
};
}
};
pub const Size = struct {
kind: union(enum) {
pixels: f32,
percent: f32,
text: f32,
children_sum,
},
strictness: f32 = 1,
pub fn pixels(amount: f32, strictness: f32) Size {
return Size{
.kind = .{ .pixels = amount },
.strictness = strictness
};
}
pub fn text(padding: f32, strictness: f32) Size {
return Size{
.kind = .{ .text = padding },
.strictness = strictness
};
}
pub fn percent(amount: f32, strictness: f32) Size {
return Size{
.kind = .{ .percent = amount },
.strictness = strictness
};
}
pub fn childrenSum(strictness: f32) Size {
return Size{
.kind = .children_sum,
.strictness = strictness
};
}
};
pub const Vec2Size = struct {
x: Size,
y: Size,
pub fn zero() Vec2Size {
return Vec2Size{
.x = Size.pixels(0, 1),
.y = Size.pixels(0, 1)
};
}
inline fn getAxis(self: *Vec2Size, axis: Axis) *Size {
return switch (axis) {
.X => &self.x,
.Y => &self.y
};
}
};
pub const Key = struct {
hash: u64 = 0,
pub fn initPtr(ptr: anytype) Key {
return Key.initUsize(@intFromPtr(ptr));
}
pub fn initUsize(num: usize) Key {
return Key{
.hash = @truncate(num)
};
}
pub fn initString(seed: u64, text: []const u8) Key {
return Key{
.hash = std.hash.XxHash3.hash(seed, text)
};
}
pub fn initNil() Key {
return Key{ .hash = 0 };
}
pub fn eql(self: Key, other: Key) bool {
return self.hash == other.hash;
}
pub fn isNil(self: Key) bool {
return self.hash == 0;
}
pub fn format(
self: Key,
comptime fmt: []const u8,
options: std.fmt.FormatOptions,
writer: anytype,
) !void {
_ = fmt;
_ = options;
try writer.print("Key{{ 0x{x} }}", .{ self.hash });
}
};
pub const Event = union(enum) {
mouse_pressed: rl.MouseButton,
mouse_released: rl.MouseButton,
mouse_move: Vec2
};
pub const Signal = struct {
pub const Flag = enum {
left_pressed,
right_pressed,
left_released,
right_released,
left_clicked,
right_clicked,
left_dragging,
right_dragging
};
flags: std.EnumSet(Flag) = .{},
drag: Vec2 = .{ .x = 0, .y = 0 },
pub fn clicked(self: Signal) bool {
return self.flags.contains(.left_clicked) or self.flags.contains(.right_clicked);
}
pub fn dragged(self: Signal) bool {
return self.flags.contains(.left_dragging) or self.flags.contains(.right_dragging);
}
fn insertMousePressed(self: *Signal, mouse_button: rl.MouseButton) void {
if (mouse_button == .mouse_button_left) {
self.flags.insert(.left_pressed);
} else if (mouse_button == .mouse_button_right) {
self.flags.insert(.right_pressed);
}
}
fn insertMouseReleased(self: *Signal, mouse_button: rl.MouseButton) void {
if (mouse_button == .mouse_button_left) {
self.flags.insert(.left_released);
} else if (mouse_button == .mouse_button_right) {
self.flags.insert(.right_released);
}
}
fn insertMouseClicked(self: *Signal, mouse_button: rl.MouseButton) void {
if (mouse_button == .mouse_button_left) {
self.flags.insert(.left_clicked);
} else if (mouse_button == .mouse_button_right) {
self.flags.insert(.right_clicked);
}
}
fn insertMouseDragged(self: *Signal, mouse_button: rl.MouseButton) void {
if (mouse_button == .mouse_button_left) {
self.flags.insert(.left_dragging);
} else if (mouse_button == .mouse_button_right) {
self.flags.insert(.right_dragging);
}
}
};
const BoxIndex = std.math.IntFittingRange(0, max_boxes);
pub const Box = struct {
pub const Persistent = struct {
size: Vec2 = .{ .x = 0, .y = 0 },
position: Vec2 = .{ .x = 0, .y = 0 },
};
pub const Flag = enum {
clickable,
draggable
};
pub const Flags = std.EnumSet(Flag);
allocator: std.mem.Allocator,
key: Key,
size: Vec2Size = Vec2Size.zero(),
flags: Flags = .{},
override_x: ?f32 = null,
override_y: ?f32 = null,
background: ?rl.Color = null,
rounded: bool = false,
layout_axis: Axis = .X,
last_used_frame: u64 = 0,
text: ?struct {
content: []u8,
font: Assets.FontId,
color: rl.Color = srcery.bright_white
} = null,
texture: ?rl.Texture2D = null,
persistent: Persistent = .{},
// Fields for maintaining tree data structure
// Index of this box
index: BoxIndex,
// Go down the tree to the first child
first_child_index: ?BoxIndex = null,
// Go down the tree to the last child
last_child_index: ?BoxIndex = null,
// Go up the tree
parent_index: ?BoxIndex = null,
// Go the next node on the same level
next_sibling_index: ?BoxIndex = null,
pub fn computedRect(self: *Box) Rect {
return Rect{
.x = self.persistent.position.x,
.y = self.persistent.position.y,
.width = self.persistent.size.x,
.height = self.persistent.size.y
};
}
pub fn setText(self: *Box, text: []const u8, font: Assets.FontId) void {
self.text = .{
.content = self.allocator.dupe(u8, text) catch return,
.font = font
};
}
};
const BoxChildIterator = struct {
current_child: ?BoxIndex,
boxes: []Box,
pub fn next(self: *BoxChildIterator) ?*Box {
if (self.current_child) |child_index| {
const child = &self.boxes[child_index];
self.current_child = child.next_sibling_index;
return child;
} else {
return null;
}
}
};
const BoxParentIterator = struct {
current_parent: ?BoxIndex,
boxes: []Box,
pub fn next(self: *BoxParentIterator) ?*Box {
if (self.current_parent) |parent_index| {
const parent = &self.boxes[parent_index];
self.current_parent = parent.parent_index;
return parent;
} else {
return null;
}
}
};
pub const root_box_key = Key.initString(0, "$root$");
arenas: [2]std.heap.ArenaAllocator,
boxes: std.BoundedArray(Box, max_boxes) = .{},
parent_index_stack: std.BoundedArray(BoxIndex, max_boxes) = .{},
frame_index: u64 = 0,
hot_box_key: ?Key = null,
active_box_keys: std.EnumMap(rl.MouseButton, Key) = .{},
events: std.BoundedArray(Event, max_events) = .{},
mouse: Vec2 = .{ .x = 0, .y = 0 },
mouse_delta: Vec2 = .{ .x = 0, .y = 0 },
mouse_buttons: std.EnumSet(rl.MouseButton) = .{},
window_size: Vec2 = .{ .x = 0, .y = 0 },
pub fn init(allocator: std.mem.Allocator) UI {
return UI{
.arenas = .{ std.heap.ArenaAllocator.init(allocator), std.heap.ArenaAllocator.init(allocator) },
.mouse = rl.getMousePosition()
};
}
pub fn deinit(self: *UI) void {
self.arenas[0].deinit();
self.arenas[1].deinit();
}
pub fn begin(self: *UI) void {
const window_width = rl.getScreenWidth();
const window_height = rl.getScreenHeight();
const mouse = rl.getMousePosition();
self.mouse_delta = mouse.subtract(self.mouse);
const active_box_flags = self.getActiveBoxFlags();
if (active_box_flags.contains(.draggable)) {
const mouse_x = rl.getMouseX();
const mouse_y = rl.getMouseY();
rl.setMousePosition(
@mod(mouse_x, @as(i32, @intFromFloat(self.window_size.x))),
@mod(mouse_y, @as(i32, @intFromFloat(self.window_size.y)))
);
}
self.frame_index += 1;
_ = self.frameArena().reset(.retain_capacity);
self.parent_index_stack.len = 0;
if (self.active_box_keys.count() == 0) {
self.hot_box_key = null;
}
self.events.len = 0;
self.mouse = rl.getMousePosition();
self.window_size = Vec2.init(@floatFromInt(window_width), @floatFromInt(window_width));
self.mouse_buttons = .{};
inline for (std.meta.fields(rl.MouseButton)) |mouse_button_field| {
const mouse_button: rl.MouseButton = @enumFromInt(mouse_button_field.value);
if (rl.isMouseButtonPressed(mouse_button)) {
self.events.appendAssumeCapacity(Event{ .mouse_pressed = mouse_button });
}
if (rl.isMouseButtonReleased(mouse_button)) {
self.events.appendAssumeCapacity(Event{ .mouse_released = mouse_button });
}
if (rl.isMouseButtonDown(mouse_button)) {
self.mouse_buttons.insert(mouse_button);
}
}
const root_box = self.newBox(root_box_key);
root_box.size.x = Size.pixels(@floatFromInt(window_width), 1);
root_box.size.y = Size.pixels(@floatFromInt(window_height), 1);
self.pushParent(root_box);
}
pub fn end(self: *UI) void {
self.popParent();
assert(self.parent_index_stack.len == 0);
{
var i: usize = 0;
while (i < self.boxes.len) {
const box = &self.boxes.buffer[i];
if (box.last_used_frame != self.frame_index) {
_ = self.boxes.swapRemove(i);
continue;
}
i += 1;
}
}
{
var active_box_flags = self.getActiveBoxFlags();
var hover_box_flags: Box.Flags = .{};
if (self.hot_box_key) |hot_box_key| {
if (self.findBoxByKey(hot_box_key)) |hot_box| {
hover_box_flags = hot_box.flags;
}
}
if (active_box_flags.contains(.draggable)) {
rl.setMouseCursor(@intFromEnum(rl.MouseCursor.mouse_cursor_resize_ew));
} else if (hover_box_flags.contains(.clickable)) {
rl.setMouseCursor(@intFromEnum(rl.MouseCursor.mouse_cursor_pointing_hand));
} else {
rl.setMouseCursor(@intFromEnum(rl.MouseCursor.mouse_cursor_default));
}
}
const root_box = self.findBoxByKey(root_box_key).?;
self.calcLayout(root_box, .X);
self.calcLayout(root_box, .Y);
}
fn getActiveBoxFlags(self: *UI) Box.Flags {
var result_flags: Box.Flags = .{};
var active_iter = self.active_box_keys.iterator();
while (active_iter.next()) |active_box_key| {
if (self.findBoxByKey(active_box_key.value.*)) |active_box| {
result_flags = result_flags.unionWith(active_box.flags);
}
}
return result_flags;
}
pub fn draw(self: *UI) void {
const root_box = self.findBoxByKey(root_box_key).?;
self.drawBox(root_box);
if (debug) {
const font = Assets.font(.text);
const debug_box = Rect{
.x = self.mouse.x,
.y = self.mouse.y + 32,
.width = 400,
.height = 100
};
rl.drawRectangleRec(debug_box, srcery.hard_black);
var layout_y: f32 = 0;
{
var buff: [256]u8 = undefined;
const text = std.fmt.bufPrint(&buff, "Hot: {?}", .{self.hot_box_key}) catch "<Not enough space>";
font.drawText(text, .{ .x = debug_box.x, .y = debug_box.y + layout_y }, srcery.white);
layout_y += 16;
}
{
var rect: ?Rect = null;
if (self.hot_box_key) |hot_box_key| {
rect = self.findBoxByKey(hot_box_key).?.computedRect();
}
var buff: [256]u8 = undefined;
const text = std.fmt.bufPrint(&buff, "Hot rect: {?}", .{RectFormatted.init(rect)}) catch "<Not enough space>";
font.drawText(text, .{ .x = debug_box.x, .y = debug_box.y + layout_y }, srcery.white);
layout_y += 16;
}
{
var hot_parent_key: ?Key = null;
if (self.hot_box_key) |hot_box_key| {
if (self.findBoxByKey(hot_box_key)) |hot_box| {
if (hot_box.parent_index) |parent_index| {
hot_parent_key = self.boxes.buffer[parent_index].key;
}
}
}
var buff: [256]u8 = undefined;
const text = std.fmt.bufPrint(&buff, "Parent of hot: {?}", .{hot_parent_key}) catch "<Not enough space>";
font.drawText(text, .{ .x = debug_box.x, .y = debug_box.y + layout_y }, srcery.white);
layout_y += 16;
}
// {
// var buff: [256]u8 = undefined;
// const text = std.fmt.bufPrint(&buff, "Active: {?}", .{self.active_box_key}) catch "<Not enough space>";
// font.drawText(text, .{ .x = debug_box.x, .y = debug_box.y + layout_y }, srcery.white);
// layout_y += 16;
// }
{
font.drawText("Children of hot:", .{ .x = debug_box.x, .y = debug_box.y + layout_y }, srcery.white);
layout_y += 16;
if (self.hot_box_key) |hot_box_key| {
const hot_box = self.findBoxByKey(hot_box_key).?;
var child_iter = self.iterChildrenByParent(hot_box);
while (child_iter.next()) |child| {
var buff: [256]u8 = undefined;
const text = std.fmt.bufPrint(&buff, "{}", .{child.key}) catch "<Not enough space>";
font.drawText(text, .{ .x = debug_box.x, .y = debug_box.y + layout_y }, srcery.white);
layout_y += 16;
}
}
}
}
}
fn drawBox(self: *UI, box: *Box) void {
const box_rect = box.computedRect();
if (box.background) |background| {
rl.drawRectangleRec(box_rect, background);
}
if (self.isBoxActive(box.key)) {
rl.drawRectangleLinesEx(box_rect, 2, rl.Color.orange);
} else if (self.isBoxHot(box.key)) {
rl.drawRectangleLinesEx(box_rect, 3, rl.Color.blue);
}
if (box.texture) |texture| {
const source = rl.Rectangle{
.x = 0,
.y = 0,
.width = @floatFromInt(texture.width),
.height = @floatFromInt(texture.height)
};
rl.drawTexturePro(
texture,
source,
box_rect,
rl.Vector2.zero(),
0, rl.Color.white
);
}
if (box.text) |text| {
const font = Assets.font(text.font);
font.drawTextCenter(text.content, rect_utils.center(box_rect), text.color);
}
var child_iter = self.iterChildrenByParent(box);
while (child_iter.next()) |child| {
self.drawBox(child);
}
if (debug) {
if (self.isBoxActive(box.key)) {
rl.drawRectangleLinesEx(box_rect, 3, rl.Color.red);
} else if (self.isBoxHot(box.key)) {
rl.drawRectangleLinesEx(box_rect, 3, rl.Color.orange);
} else {
rl.drawRectangleLinesEx(box_rect, 1, rl.Color.pink);
}
}
}
inline fn getVec2Axis(vec2: *Vec2, axis: Axis) *f32 {
return switch (axis) {
.X => &vec2.x,
.Y => &vec2.y
};
}
fn calcLayout(self: *UI, box: *Box, axis: Axis) void {
self.calcLayoutStandaloneSize(box, axis);
self.calcLayoutUpwardsSize(box, axis);
self.calcLayoutDownardsSize(box, axis);
self.calcLayoutEnforceConstraints(box, axis);
self.calcLayoutPositions(box, axis);
}
fn calcLayoutStandaloneSize(self: *UI, box: *Box, axis: Axis) void {
const size = box.size.getAxis(axis);
const computed_size = getVec2Axis(&box.persistent.size, axis);
if (size.kind == .pixels) {
computed_size.* = size.kind.pixels;
} else if (size.kind == .text) {
if (box.text) |text| {
const font = Assets.font(text.font);
var text_size = font.measureText(text.content);
computed_size.* = getVec2Axis(&text_size, axis).*;
computed_size.* += size.kind.text * font.getSize();
} else {
computed_size.* = 0;
}
}
var child_iter = self.iterChildrenByParent(box);
while (child_iter.next()) |child| {
self.calcLayoutStandaloneSize(child, axis);
}
}
fn calcLayoutUpwardsSize(self: *UI, box: *Box, axis: Axis) void {
const size = box.size.getAxis(axis);
const computed_size = getVec2Axis(&box.persistent.size, axis);
if (size.kind == .percent) {
var maybe_fixed_parent: ?*Box = null;
var parent_iter = self.iterUpwardByParent(box);
while (parent_iter.next()) |parent| {
const parent_size_kind = parent.size.getAxis(axis).kind;
if (parent_size_kind == .pixels or parent_size_kind == .percent or parent_size_kind == .text) {
maybe_fixed_parent = parent;
break;
}
}
if (maybe_fixed_parent) |fixed_parent| {
computed_size.* = getVec2Axis(&fixed_parent.persistent.size, axis).* * size.kind.percent;
}
}
{
var child_iter = self.iterChildrenByParent(box);
while (child_iter.next()) |child| {
self.calcLayoutUpwardsSize(child, axis);
}
}
}
fn calcLayoutDownardsSize(self: *UI, box: *Box, axis: Axis) void {
{
var child_iter = self.iterChildrenByParent(box);
while (child_iter.next()) |child| {
self.calcLayoutDownardsSize(child, axis);
}
}
const size = box.size.getAxis(axis);
const computed_size = getVec2Axis(&box.persistent.size, axis);
if (size.kind == .children_sum) {
var sum: f32 = 0;
var child_iter = self.iterChildrenByParent(box);
while (child_iter.next()) |child| {
const child_size = getVec2Axis(&child.persistent.size, axis).*;
if (box.layout_axis == axis) {
sum += child_size;
} else {
sum = @max(sum, child_size);
}
}
computed_size.* = sum;
}
}
fn calcLayoutPositions(self: *UI, box: *Box, axis: Axis) void {
{
var layout_position: f32 = 0;
var child_iter = self.iterChildrenByParent(box);
while (child_iter.next()) |child| {
const child_axis_position = getVec2Axis(&child.persistent.position, axis);
const child_axis_size = getVec2Axis(&child.persistent.size, axis);
const parent_axis_position = getVec2Axis(&box.persistent.position, axis);
const child_override_position = switch (axis) {
.X => child.override_x,
.Y => child.override_y,
};
child_axis_position.* = parent_axis_position.*;
if (child_override_position) |position| {
child_axis_position.* += position;
} else if (box.layout_axis == axis) {
child_axis_position.* += layout_position;
layout_position += child_axis_size.*;
}
}
}
{
var child_iter = self.iterChildrenByParent(box);
while (child_iter.next()) |child| {
self.calcLayoutPositions(child, axis);
}
}
}
fn calcLayoutEnforceConstraints(self: *UI, box: *Box, axis: Axis) void {
// Children can't be wider than the parent on the secondary axis
if (box.layout_axis != axis) {
const max_child_size = getVec2Axis(&box.persistent.size, axis).*;
var child_iter = self.iterChildrenByParent(box);
while (child_iter.next()) |child| {
const child_size = getVec2Axis(&child.persistent.size, axis);
if (child_size.* > max_child_size) {
child_size.* = max_child_size;
}
}
}
// Children need to be shrunk relative to "strictness" on the primary axis
if (box.layout_axis == axis) {
const max_sum_children_size = getVec2Axis(&box.persistent.size, axis).*;
var sum_children_size: f32 = 0;
var children_fixups: std.BoundedArray(f32, max_boxes) = .{};
var children_fixup_sum: f32 = 0;
{
var child_iter = self.iterChildrenByParent(box);
while (child_iter.next()) |child| {
const child_semantic_size_axis = child.size.getAxis(axis).*;
const child_size_axis = getVec2Axis(&child.persistent.size, axis).*;
sum_children_size += child_size_axis;
const child_fixup = child_size_axis * (1 - child_semantic_size_axis.strictness);
children_fixups.appendAssumeCapacity(child_fixup);
children_fixup_sum += child_fixup;
}
}
const overflow = sum_children_size - max_sum_children_size;
if (overflow > 0) {
const overflow_percent = std.math.clamp(overflow / children_fixup_sum, 0, 1);
var index: usize = 0;
var child_iter = self.iterChildrenByParent(box);
while (child_iter.next()) |child| : (index += 1) {
const child_size_axis = getVec2Axis(&child.persistent.size, axis);
child_size_axis.* -= children_fixups.buffer[index] * overflow_percent;
}
}
}
{
var child_iter = self.iterChildrenByParent(box);
while (child_iter.next()) |child| {
self.calcLayoutEnforceConstraints(child, axis);
}
}
}
pub fn newBoxFromString(self: *UI, text: []const u8) *Box {
var parent_hash: u64 = 0;
if (self.getParent()) |parent| {
parent_hash = parent.key.hash;
}
return self.newBox(Key.initString(parent_hash, text));
}
pub fn newBoxFromPtr(self: *UI, ptr: anytype) *Box {
return self.newBox(Key.initPtr(ptr));
}
pub fn newBox(self: *UI, key: Key) *Box {
assert(key.hash != 0);
var box: *Box = undefined;
var box_index: BoxIndex = undefined;
var persistent: Box.Persistent = .{};
if (self.findBoxByKey(key)) |found_box| {
assert(found_box.last_used_frame < self.frame_index);
persistent = found_box.persistent;
box = found_box;
box_index = found_box.index;
} else {
box = self.boxes.addOneAssumeCapacity();
box_index = self.boxes.len - 1;
}
box.* = Box{
.key = key,
.allocator = self.frameArena().allocator(),
.last_used_frame = self.frame_index,
.persistent = persistent,
.index = box_index
};
if (self.getParent()) |parent| {
box.parent_index = parent.index;
if (parent.last_child_index) |last_child_index| {
const last_child = &self.boxes.buffer[last_child_index];
last_child.next_sibling_index = box.index;
parent.last_child_index = box.index;
} else {
parent.first_child_index = box.index;
parent.last_child_index = box.index;
}
}
return box;
}
fn findBoxByKey(self: *UI, key: Key) ?*Box {
for (self.boxes.slice()) |*box| {
if (box.key.eql(key)) {
return box;
}
}
return null;
}
pub fn signalFromBox(self: *UI, box: *Box) Signal {
var result = Signal{};
const key = box.key;
const rect = box.computedRect();
const is_mouse_inside = rect_utils.isInsideVec2(rect, self.mouse);
const clickable = box.flags.contains(.clickable);
const draggable = box.flags.contains(.draggable);
var event_index: usize = 0;
while (event_index < self.events.len) {
var taken = false;
const event: Event = self.events.buffer[event_index];
const is_active = self.isBoxActive(key);
if (event == .mouse_pressed and clickable and is_mouse_inside) {
const mouse_button = event.mouse_pressed;
result.insertMousePressed(mouse_button);
self.active_box_keys.put(mouse_button, key);
taken = true;
}
if (event == .mouse_released and clickable and is_active and is_mouse_inside) {
const mouse_button = event.mouse_released;
result.insertMousePressed(mouse_button);
result.insertMouseClicked(mouse_button);
self.active_box_keys.remove(mouse_button);
taken = true;
}
if (event == .mouse_released and clickable and is_active and !is_mouse_inside) {
const mouse_button = event.mouse_released;
result.insertMousePressed(mouse_button);
self.hot_box_key = null;
self.active_box_keys.remove(mouse_button);
taken = true;
}
if (taken) {
_ = self.events.swapRemove(event_index);
} else {
event_index += 1;
}
}
if (draggable and self.mouse_delta.equals(Vec2.zero()) == 0) {
inline for (.{ rl.MouseButton.mouse_button_left, rl.MouseButton.mouse_button_right }) |mouse_button| {
const active_box = self.active_box_keys.get(mouse_button);
if (active_box != null and active_box.?.eql(key)) {
result.insertMouseDragged(mouse_button);
result.drag = self.mouse_delta;
}
}
}
if (is_mouse_inside and clickable) {
if (self.hot_box_key == null) {
self.hot_box_key = key;
}
}
return result;
}
fn isBoxHot(self: *UI, key: Key) bool {
if (self.hot_box_key) |hot_box_key| {
return hot_box_key.eql(key);
} else {
return false;
}
}
fn isBoxActive(self: *UI, key: Key) bool {
inline for (std.meta.fields(rl.MouseButton)) |mouse_button_field| {
const mouse_button: rl.MouseButton = @enumFromInt(mouse_button_field.value);
if (self.active_box_keys.get(mouse_button)) |active_box| {
if (active_box.eql(key)) {
return true;
}
}
}
return false;
}
pub fn getParent(self: *UI) ?*Box {
const parent_stack: []BoxIndex = self.parent_index_stack.slice();
if (parent_stack.len > 0) {
const parent_index = parent_stack[parent_stack.len - 1];
return &self.boxes.buffer[parent_index];
} else {
return null;
}
}
pub fn pushParent(self: *UI, box: *const Box) void {
self.parent_index_stack.appendAssumeCapacity(box.index);
}
pub fn popParent(self: *UI) void {
_ = self.parent_index_stack.pop();
}
pub fn iterChildrenByParent(self: *UI, box: *const Box) BoxChildIterator {
return BoxChildIterator{
.boxes = self.boxes.slice(),
.current_child = box.first_child_index
};
}
pub fn iterUpwardByParent(self: *UI, box: *const Box) BoxParentIterator {
return BoxParentIterator{
.boxes = self.boxes.slice(),
.current_parent = box.parent_index
};
}
pub fn frameArena(self: *UI) *std.heap.ArenaAllocator {
return &self.arenas[@mod(self.frame_index, 2)];
}

65
src/ui/button.zig
View File

@ -1,65 +0,0 @@
const std = @import("std");
const rl = @import("raylib");
const Theme = @import("../theme.zig");
const UI = @import("./root.zig");
const rectUtils = @import("../rect-utils.zig");
const utils = @import("../utils.zig");
const SourceLocation = std.builtin.SourceLocation;
const Id = UI.Id;
pub const ButtonOptions = struct {
box: rl.Rectangle,
text: []const u8,
font: Theme.FontId = .text,
};
pub fn showButtonId(ui: *UI, id: Id, opts: ButtonOptions) bool {
const bg_color = Theme.color_button;
const text_color = Theme.color_text;
const font = Theme.font(opts.font);
var clicked = false;
const is_mouse_inside = ui.isMouseInside(opts.box);
if (is_mouse_inside) {
ui.hot_widget = id;
}
if (ui.isHot(id) and rl.isMouseButtonPressed(.mouse_button_left)) {
ui.active_widget = id;
clicked = true;
}
if (ui.isActive(id) and rl.isMouseButtonReleased(.mouse_button_left)) {
ui.active_widget = null;
ui.hot_widget = null;
}
if (ui.isHot(id) and !is_mouse_inside) {
ui.hot_widget = null;
}
const text_size = font.measureText(opts.text);
var text_position = rectUtils.aligned(opts.box, .center, .center);
text_position.x -= text_size.x/2;
text_position.y -= text_size.y/2;
var color = bg_color.fade(0.5);
if (ui.isHot(id)) {
color = bg_color;
}
rl.drawRectangleRec(opts.box, color);
rl.drawLineV(
rectUtils.bottomLeft(opts.box),
rectUtils.bottomRight(opts.box),
color
);
font.drawText(opts.text, text_position, text_color);
return clicked;
}
pub fn showButton(ui: *UI, comptime src: SourceLocation, opts: ButtonOptions) bool {
return showButtonId(ui, Id.init(src), opts);
}

201
src/ui/root.zig
View File

@ -1,201 +0,0 @@
const std = @import("std");
const rl = @import("raylib");
const rect_utils = @import("../rect-utils.zig");
const assert = std.debug.assert;
const SourceLocation = std.builtin.SourceLocation;
// TODO: Implement Id context (I.e. ID parenting, aggregate ids)
const UI = @This();
const max_stack_depth = 16;
const TransformFrame = struct {
offset: rl.Vector2,
scale: rl.Vector2,
};
const TransformStack = std.BoundedArray(TransformFrame, max_stack_depth);
hot_widget: ?Id = null,
active_widget: ?Id = null,
transform_stack: TransformStack,
pub fn init() UI {
var stack = TransformStack.init(0) catch unreachable;
stack.appendAssumeCapacity(TransformFrame{
.offset = rl.Vector2{ .x = 0, .y = 0 },
.scale = rl.Vector2{ .x = 1, .y = 1 },
});
return UI{
.transform_stack = stack
};
}
pub fn isHot(self: *const UI, id: Id) bool {
if (self.hot_widget) |hot_id| {
return hot_id.eql(id);
}
return false;
}
pub fn isActive(self: *const UI, id: Id) bool {
if (self.active_widget) |active_id| {
return active_id.eql(id);
}
return false;
}
pub fn hashSrc(src: SourceLocation) u64 {
var hash = std.hash.Fnv1a_64.init();
hash.update(src.file);
hash.update(std.mem.asBytes(&src.line));
hash.update(std.mem.asBytes(&src.column));
return hash.value;
}
fn getTopFrame(self: *UI) *TransformFrame {
assert(self.transform_stack.len >= 1);
return &self.transform_stack.buffer[self.transform_stack.len-1];
}
pub fn getMousePosition(self: *UI) rl.Vector2 {
const frame = self.getTopFrame();
return rl.getMousePosition().subtract(frame.offset).divide(frame.scale);
}
pub fn getMouseDelta(self: *UI) rl.Vector2 {
const frame = self.getTopFrame();
return rl.Vector2.multiply(rl.getMouseDelta(), frame.scale);
}
pub fn getMouseWheelMove(self: *UI) f32 {
const frame = self.getTopFrame();
return rl.getMouseWheelMove() * frame.scale.y;
}
pub fn isMouseInside(self: *UI, rect: rl.Rectangle) bool {
return rect_utils.isInsideVec2(rect, self.getMousePosition());
}
pub fn transformScale(self: *UI, x: f32, y: f32) void {
const frame = self.getTopFrame();
frame.scale.x *= x;
frame.scale.y *= y;
rl.gl.rlScalef(x, y, 1);
}
pub fn transformTranslate(self: *UI, x: f32, y: f32) void {
const frame = self.getTopFrame();
frame.offset.x += x * frame.scale.x;
frame.offset.y += y * frame.scale.y;
rl.gl.rlTranslatef(x, y, 0);
}
pub fn pushTransform(self: *UI) void {
rl.gl.rlPushMatrix();
self.transform_stack.appendAssumeCapacity(self.getTopFrame().*);
}
pub fn popTransform(self: *UI) void {
assert(self.transform_stack.len >= 2);
rl.gl.rlPopMatrix();
_ = self.transform_stack.pop();
}
pub fn beginScissorMode(self: *UI, x: f32, y: f32, width: f32, height: f32) void {
const frame = self.getTopFrame();
rl.beginScissorMode(
@intFromFloat(x * frame.scale.x + frame.offset.x),
@intFromFloat(y * frame.scale.y + frame.offset.y),
@intFromFloat(width * frame.scale.x),
@intFromFloat(height * frame.scale.y),
);
}
pub fn beginScissorModeRect(self: *UI, rect: rl.Rectangle) void {
self.beginScissorMode(rect.x, rect.y, rect.width, rect.height);
}
pub fn endScissorMode(self: *UI) void {
_ = self;
rl.endScissorMode();
}
pub const Id = struct {
location: u64,
extra: u32 = 0,
pub fn init(comptime src: SourceLocation) Id {
return Id{ .location = comptime hashSrc(src) };
}
pub fn eql(a: Id, b: Id) bool {
return a.location == b.location and a.extra == b.extra;
}
};
pub const Stack = struct {
pub const Direction = enum {
top_to_bottom,
bottom_to_top,
left_to_right
};
unused_box: rl.Rectangle,
dir: Direction,
gap: f32 = 0,
pub fn init(box: rl.Rectangle, dir: Direction) Stack {
return Stack{
.unused_box = box,
.dir = dir
};
}
pub fn next(self: *Stack, size: f32) rl.Rectangle {
return switch (self.dir) {
.top_to_bottom => {
const next_box = rl.Rectangle.init(self.unused_box.x, self.unused_box.y, self.unused_box.width, size);
self.unused_box.y += size;
self.unused_box.y += self.gap;
return next_box;
},
.bottom_to_top => {
const next_box = rl.Rectangle.init(self.unused_box.x, self.unused_box.y + self.unused_box.height - size, self.unused_box.width, size);
self.unused_box.height -= size;
self.unused_box.height -= self.gap;
return next_box;
},
.left_to_right => {
const next_box = rl.Rectangle.init(self.unused_box.x, self.unused_box.y, size, self.unused_box.height);
self.unused_box.x += size;
self.unused_box.x += self.gap;
return next_box;
},
};
}
};
pub const IdIterator = struct {
id: Id,
counter: u32,
pub fn init(comptime src: SourceLocation) IdIterator {
return IdIterator{
.id = Id.init(src),
.counter = 0
};
}
pub fn next(self: *IdIterator) Id {
var id = self.id;
id.extra = self.counter;
self.counter += 1;
return id;
}
};