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Fix up API calls for initialization

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This commit is contained in:
Mitchell Hashimoto
2025-12-31 11:00:21 -08:00
parent 978400b0b0
commit 896361f426
6 changed files with 69 additions and 21 deletions
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5
pkg/dcimgui/build.zig
View File

@@ -133,6 +133,11 @@ pub fn build(b: *std.Build) !void {
},
.flags = flags.items,
});
lib.addCSourceFiles(.{
.root = b.path(""),
.files = &.{"ext.cpp"},
.flags = flags.items,
});
lib.installHeadersDirectory(
upstream.path(""),

30
pkg/dcimgui/ext.cpp Normal file
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@@ -0,0 +1,30 @@
#include "imgui.h"
// This file contains custom extensions for functionality that isn't
// properly supported by Dear Bindings yet. Namely:
// https://github.com/dearimgui/dear_bindings/issues/55
// Wrap this in a namespace to keep it separate from the C++ API
namespace cimgui
{
#include "dcimgui.h"
}
extern "C"
{
CIMGUI_API void ImFontConfig_ImFontConfig(cimgui::ImFontConfig* self)
{
static_assert(sizeof(cimgui::ImFontConfig) == sizeof(::ImFontConfig), "ImFontConfig size mismatch");
static_assert(alignof(cimgui::ImFontConfig) == alignof(::ImFontConfig), "ImFontConfig alignment mismatch");
::ImFontConfig defaults;
*reinterpret_cast<::ImFontConfig*>(self) = defaults;
}
CIMGUI_API void ImGuiStyle_ImGuiStyle(cimgui::ImGuiStyle* self)
{
static_assert(sizeof(cimgui::ImGuiStyle) == sizeof(::ImGuiStyle), "ImGuiStyle size mismatch");
static_assert(alignof(cimgui::ImGuiStyle) == alignof(::ImGuiStyle), "ImGuiStyle alignment mismatch");
::ImGuiStyle defaults;
*reinterpret_cast<::ImGuiStyle*>(self) = defaults;
}
}

6
pkg/dcimgui/main.zig
View File

@@ -28,6 +28,12 @@ pub extern fn ImGui_DockBuilderDockWindow(window_name: [*:0]const u8, node_id: c
pub extern fn ImGui_DockBuilderSplitNode(node_id: c.ImGuiID, split_dir: c.ImGuiDir, size_ratio_for_node_at_dir: f32, out_id_at_dir: *c.ImGuiID, out_id_at_opposite_dir: *c.ImGuiID) callconv(.c) c.ImGuiID;
pub extern fn ImGui_DockBuilderFinish(node_id: c.ImGuiID) callconv(.c) void;
// Extension functions from ext.cpp
pub const ext = struct {
pub extern fn ImFontConfig_ImFontConfig(self: *c.ImFontConfig) callconv(.c) void;
pub extern fn ImGuiStyle_ImGuiStyle(self: *c.ImGuiStyle) callconv(.c) void;
};
test {
_ = c;
}