fix: vcpkg stores SDL.h under SDL2 folder

macOS and Linux seem to not, so in order to get CI working again I
should make use of the preprocessor.

FIXME: I think this makes vcpkg a **hard** requirement which perhaps
isn't ideal if I want ZBA to be as easy to build as possible. I should
try ensuring that building w/out vcpkg works as well

README.md

@@ -24,24 +24,28 @@ const zglfw = @import("libs/zglfw/build.zig");
 const zgpu = @import("libs/zgpu/build.zig");
 const zpool = @import("libs/zpool/build.zig");
 
-pub fn build(b: *std.build.Builder) void {
+pub fn build(b: *std.Build) void {
     ...
-    const zgui_options = zgui.BuildOptionsStep.init(b, .{ .backend = .glfw_wgpu });
-    const zgui_pkg = zgui.getPkg(&.{zgui_options.getPkg()});
+    const zgui_pkg = zgui.package(b, .{
+        .options = .{ .backend = .glfw_wgpu },
+    });
 
-    exe.addPackage(zgui_pkg);
+    exe.addModule("zgui", zgui_pkg.module);
 
-    zgui.link(exe, zgui_options);
+    zgui.link(exe, zgui_pkg.options);
     
     // Needed for glfw/wgpu rendering backend
-    const zgpu_options = zgpu.BuildOptionsStep.init(b, .{});
-    const zgpu_pkg = zgpu.getPkg(&.{ zgpu_options.getPkg(), zpool.pkg, zglfw.pkg });
+    const zglfw_pkg = zglfw.package(b, .{});
+    const zpool_pkg = zpool.package(b, .{});
+    const zgpu_pkg = zgpu.package(b, .{
+        .deps = .{ .zpool = zpool_pkg.module, .zglfw = zglfw_pkg.module },
+    });
 
-    exe.addPackage(zglfw.pkg);
-    exe.addPackage(zgpu_pkg);
+    exe.addModule("zgpu", zgpu_pkg.module);
+    exe.addModule("zglfw", zglfw_pkg.module);
 
     zglfw.link(exe);
-    zgpu.link(exe, zgpu_options);
+    zgpu.link(exe);
 }
 ```
 Now in your code you may import and use `zgui`:

build.zig

@@ -8,43 +8,44 @@ pub const Backend = enum {
     sdl2_opengl3,
 };
 
-pub const BuildOptions = struct {
+pub const Options = struct {
     backend: Backend,
 };
 
-pub const BuildOptionsStep = struct {
-    options: BuildOptions,
-    step: *std.build.OptionsStep,
-
-    pub fn init(b: *std.build.Builder, options: BuildOptions) BuildOptionsStep {
-        const bos = .{
-            .options = options,
-            .step = b.addOptions(),
-        };
-        bos.step.addOption(Backend, "backend", bos.options.backend);
-        return bos;
-    }
-
-    pub fn getPkg(bos: BuildOptionsStep) std.build.Pkg {
-        return bos.step.getPackage("zgui_options");
-    }
-
-    fn addTo(bos: BuildOptionsStep, target_step: *std.build.LibExeObjStep) void {
-        target_step.addOptions("zgui_options", bos.step);
-    }
+pub const Package = struct {
+    module: *std.Build.Module,
+    options: Options,
+    options_module: *std.Build.Module,
 };
 
-pub fn getPkg(dependencies: []const std.build.Pkg) std.build.Pkg {
+pub fn package(
+    b: *std.Build,
+    args: struct {
+        options: Options,
+    },
+) Package {
+    const step = b.addOptions();
+    step.addOption(Backend, "backend", args.options.backend);
+
+    const options_module = step.createModule();
+
+    const module = b.createModule(.{
+        .source_file = .{ .path = thisDir() ++ "/src/main.zig" },
+        .dependencies = &.{
+            .{ .name = "zgui_options", .module = options_module },
+        },
+    });
+
     return .{
-        .name = "zgui",
-        .source = .{ .path = thisDir() ++ "/src/main.zig" },
-        .dependencies = dependencies,
+        .module = module,
+        .options = args.options,
+        .options_module = options_module,
     };
 }
 
-pub fn link(exe: *std.build.LibExeObjStep, bos: BuildOptionsStep) void {
-    bos.addTo(exe);
+pub fn build(_: *std.Build) void {}
 
+pub fn link(exe: *std.Build.CompileStep, options: Options) void {
     exe.addIncludePath(thisDir() ++ "/libs");
     exe.addIncludePath(thisDir() ++ "/libs/imgui");
 
@@ -65,7 +66,7 @@ pub fn link(exe: *std.build.LibExeObjStep, bos: BuildOptionsStep) void {
     exe.addCSourceFile(thisDir() ++ "/libs/imgui/implot.cpp", cflags);
     exe.addCSourceFile(thisDir() ++ "/libs/imgui/implot_items.cpp", cflags);
 
-    switch (bos.options.backend) {
+    switch (options.backend) {
         .glfw_wgpu => {
             exe.addCSourceFile(thisDir() ++ "/libs/imgui/backends/imgui_impl_glfw.cpp", cflags);
             exe.addCSourceFile(thisDir() ++ "/libs/imgui/backends/imgui_impl_wgpu.cpp", cflags);

src/gui.zig

@@ -252,6 +252,16 @@ pub const io = struct {
     pub const addCharacterEvent = zguiIoAddCharacterEvent;
     extern fn zguiIoAddCharacterEvent(char: i32) void;
 };
+
+pub fn setClipboardText(value: [:0]const u8) void {
+    zguiSetClipboardText(value.ptr);
+}
+pub fn getClipboardText() [:0]const u8 {
+    const value = zguiGetClipboardText();
+    return std.mem.span(value);
+}
+extern fn zguiSetClipboardText(text: [*:0]const u8) void;
+extern fn zguiGetClipboardText() [*:0]const u8;
 //--------------------------------------------------------------------------------------------------
 const Context = *opaque {};
 pub const DrawData = *extern struct {
@@ -943,9 +953,12 @@ pub const pushItemWidth = zguiPushItemWidth;
 pub const popItemWidth = zguiPopItemWidth;
 /// `void setNextItemWidth(item_width: f32) void`
 pub const setNextItemWidth = zguiSetNextItemWidth;
+/// `void setItemDefaultFocus() void`
+pub const setItemDefaultFocus = zguiSetItemDefaultFocus;
 extern fn zguiPushItemWidth(item_width: f32) void;
 extern fn zguiPopItemWidth() void;
 extern fn zguiSetNextItemWidth(item_width: f32) void;
+extern fn zguiSetItemDefaultFocus() void;
 //--------------------------------------------------------------------------------------------------
 /// `pub fn getFont() Font`
 pub const getFont = zguiGetFont;
@@ -3292,6 +3305,14 @@ pub const DrawList = *opaque {
     }
     extern fn zguiDrawList_ResetForNewFrame(draw_list: DrawList) void;
 
+    pub fn clearMemory(draw_list: DrawList) void {
+        if (draw_list.getOwnerName()) |owner| {
+            @panic(format("zgui: illegally clearing memory DrawList of {s}", .{owner}));
+        }
+        zguiDrawList_ClearFreeMemory(draw_list);
+    }
+    extern fn zguiDrawList_ClearFreeMemory(draw_list: DrawList) void;
+
     //----------------------------------------------------------------------------------------------
     pub const getVertexBufferLength = zguiDrawList_GetVertexBufferLength;
     extern fn zguiDrawList_GetVertexBufferLength(draw_list: DrawList) i32;
@@ -3829,7 +3850,7 @@ pub const DrawList = *opaque {
         uvmax: *const [2]f32,
         col: u32,
         rounding: f32,
-        flags: u32,
+        flags: DrawFlags,
     ) void;
     //----------------------------------------------------------------------------------------------
     pub const pathClear = zguiDrawList_PathClear;
@@ -3923,7 +3944,7 @@ pub const DrawList = *opaque {
         p3: [2]f32,
         num_segments: u32 = 0,
     };
-    pub fn pathPathBezierQuadraticCurveTo(draw_list: DrawList, args: PathBezierQuadraticCurveTo) void {
+    pub fn pathBezierQuadraticCurveTo(draw_list: DrawList, args: PathBezierQuadraticCurveTo) void {
         zguiDrawList_PathBezierQuadraticCurveTo(draw_list, &args.p2, &args.p3, args.num_segments);
     }
     extern fn zguiDrawList_PathBezierQuadraticCurveTo(
@@ -3950,4 +3971,95 @@ pub const DrawList = *opaque {
         flags: DrawFlags,
     ) void;
     //----------------------------------------------------------------------------------------------
+    pub const primReserve = zguiDrawList_PrimReserve;
+    pub const primUnreserve = zguiDrawList_PrimUnreserve;
+    pub fn primRect(
+        draw_list: DrawList,
+        a: [2]f32,
+        b: [2]f32,
+        col: u32,
+    ) void {
+        return zguiDrawList_PrimRect(draw_list, &a, &b, col);
+    }
+    pub fn primRectUV(
+        draw_list: DrawList,
+        a: [2]f32,
+        b: [2]f32,
+        uv_a: [2]f32,
+        uv_b: [2]f32,
+        col: u32,
+    ) void {
+        return zguiDrawList_PrimRectUV(draw_list, &a, &b, &uv_a, &uv_b, col);
+    }
+    pub fn primQuadUV(
+        draw_list: DrawList,
+        a: [2]f32,
+        b: [2]f32,
+        c: [2]f32,
+        d: [2]f32,
+        uv_a: [2]f32,
+        uv_b: [2]f32,
+        uv_c: [2]f32,
+        uv_d: [2]f32,
+        col: u32,
+    ) void {
+        return zguiDrawList_PrimQuadUV(draw_list, &a, &b, &c, &d, &uv_a, &uv_b, &uv_c, &uv_d, col);
+    }
+    pub fn primWriteVtx(
+        draw_list: DrawList,
+        pos: [2]f32,
+        uv: [2]f32,
+        col: u32,
+    ) void {
+        return zguiDrawList_PrimWriteVtx(draw_list, &pos, &uv, col);
+    }
+    pub const primWriteIdx = zguiDrawList_PrimWriteIdx;
+
+    extern fn zguiDrawList_PrimReserve(
+        draw_list: DrawList,
+        idx_count: i32,
+        vtx_count: i32,
+    ) void;
+    extern fn zguiDrawList_PrimUnreserve(
+        draw_list: DrawList,
+        idx_count: i32,
+        vtx_count: i32,
+    ) void;
+    extern fn zguiDrawList_PrimRect(
+        draw_list: DrawList,
+        a: *const [2]f32,
+        b: *const [2]f32,
+        col: u32,
+    ) void;
+    extern fn zguiDrawList_PrimRectUV(
+        draw_list: DrawList,
+        a: *const [2]f32,
+        b: *const [2]f32,
+        uv_a: *const [2]f32,
+        uv_b: *const [2]f32,
+        col: u32,
+    ) void;
+    extern fn zguiDrawList_PrimQuadUV(
+        draw_list: DrawList,
+        a: *const [2]f32,
+        b: *const [2]f32,
+        c: *const [2]f32,
+        d: *const [2]f32,
+        uv_a: *const [2]f32,
+        uv_b: *const [2]f32,
+        uv_c: *const [2]f32,
+        uv_d: *const [2]f32,
+        col: u32,
+    ) void;
+    extern fn zguiDrawList_PrimWriteVtx(
+        draw_list: DrawList,
+        pos: *const [2]f32,
+        uv: *const [2]f32,
+        col: u32,
+    ) void;
+    extern fn zguiDrawList_PrimWriteIdx(
+        draw_list: DrawList,
+        idx: DrawIdx,
+    ) void;
+    //----------------------------------------------------------------------------------------------
 };

src/zgui.cpp

@@ -1040,6 +1040,10 @@ ZGUI_API void zguiSetNextItemWidth(float item_width) {
     ImGui::SetNextItemWidth(item_width);
 }
 
+ZGUI_API void zguiSetItemDefaultFocus(void) {
+    ImGui::SetItemDefaultFocus();
+}
+
 ZGUI_API ImFont* zguiGetFont(void) {
     return ImGui::GetFont();
 }
@@ -1148,6 +1152,14 @@ ZGUI_API ImGuiID zguiGetPtrId(const void* ptr_id) {
     return ImGui::GetID(ptr_id);
 }
 
+ZGUI_API void zguiSetClipboardText(const char* text) {
+    ImGui::SetClipboardText(text);
+}
+
+ZGUI_API const char* zguiGetClipboardText(void) {
+    return ImGui::GetClipboardText();
+}
+
 ZGUI_API ImFont* zguiIoAddFontFromFileWithConfig(
     const char* filename,
     float size_pixels,
@@ -1572,6 +1584,10 @@ ZGUI_API void zguiDrawList_ResetForNewFrame(ImDrawList *draw_list) {
     draw_list->_ResetForNewFrame();
 }
 
+ZGUI_API void zguiDrawList_ClearFreeMemory(ImDrawList *draw_list) {
+    draw_list->_ClearFreeMemory();
+}
+
 ZGUI_API int zguiDrawList_GetVertexBufferLength(ImDrawList *draw_list) {
     return draw_list->VtxBuffer.size();
 }
@@ -1976,6 +1992,66 @@ ZGUI_API void zguiDrawList_PathRect(
 ) {
     draw_list->PathRect({ rect_min[0], rect_min[1] }, { rect_max[0], rect_max[1] }, rounding, flags);
 }
+
+ZGUI_API void zguiDrawList_PrimReserve( ImDrawList* draw_list, int idx_count, int vtx_count) {
+    draw_list->PrimReserve(idx_count, vtx_count);
+}
+
+ZGUI_API void zguiDrawList_PrimUnreserve( ImDrawList* draw_list, int idx_count, int vtx_count) {
+    draw_list->PrimUnreserve(idx_count, vtx_count);
+}
+
+ZGUI_API void zguiDrawList_PrimRect(
+    ImDrawList* draw_list,
+    const float a[2],
+    const float b[2],
+    unsigned int col
+) {
+    draw_list->PrimRect({ a[0], a[1] }, { b[0], b[1] }, col);
+}
+
+ZGUI_API void zguiDrawList_PrimRectUV(
+    ImDrawList* draw_list,
+    const float a[2],
+    const float b[2],
+    const float uv_a[2],
+    const float uv_b[2],
+    unsigned int col
+) {
+    draw_list->PrimRectUV({ a[0], a[1] }, { b[0], b[1] }, { uv_a[0], uv_a[1] }, { uv_b[0], uv_b[1] }, col);
+}
+
+ZGUI_API void zguiDrawList_PrimQuadUV(
+    ImDrawList* draw_list,
+    const float a[2],
+    const float b[2],
+    const float c[2],
+    const float d[2],
+    const float uv_a[2],
+    const float uv_b[2],
+    const float uv_c[2],
+    const float uv_d[2],
+    unsigned int col
+) {
+    draw_list->PrimQuadUV(
+        { a[0], a[1] }, { b[0], b[1] }, { c[0], c[1] }, { d[0], d[1] },
+        { uv_a[0], uv_a[1] }, { uv_b[0], uv_b[1] }, { uv_c[0], uv_c[1] }, { uv_d[0], uv_d[1] },
+        col
+    );
+}
+
+ZGUI_API void zguiDrawList_PrimWriteVtx(
+    ImDrawList* draw_list,
+    const float pos[2],
+    const float uv[2],
+    unsigned int col
+) {
+    draw_list->PrimWriteVtx({ pos[0], pos[1] }, { uv[0], uv[1] }, col);
+}
+
+ZGUI_API void zguiDrawList_PrimWriteIdx( ImDrawList* draw_list, ImDrawIdx idx) {
+    draw_list->PrimWriteIdx(idx);
+}
 //--------------------------------------------------------------------------------------------------
 //
 // Viewport