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#include "imgui-raii.hpp"
#include <Corrade/Containers/StringView.h>
#include <Magnum/Magnum.h>
#include <Magnum/Math/Color.h>
namespace floormat::imgui {
font_saver::~font_saver()
{
auto& ctx = *ImGui::GetCurrentContext();
ctx.FontSize = font_size;
ctx.FontBaseSize = font_base_size;
}
font_saver::font_saver(ImGuiContext& ctx, float size) :
font_size{ctx.FontSize}, font_base_size{ctx.FontBaseSize}
{
ctx.FontSize = size;
ctx.FontBaseSize = size;
}
font_saver::font_saver(float size) : font_saver{*ImGui::GetCurrentContext(), size} {}
style_saver::style_saver() : style{ImGui::GetStyle()} {}
style_saver::~style_saver() { ImGui::GetStyle() = style; }
void text(StringView str, ImGuiTextFlags flags) { ImGui::TextEx(str.data(), str.data() + str.size(), flags); }
raii_wrapper::raii_wrapper(raii_wrapper::F fn) : dtor{fn} {}
raii_wrapper::~raii_wrapper() { if (dtor) dtor(); }
raii_wrapper::raii_wrapper(raii_wrapper&& other) noexcept : dtor{other.dtor} { other.dtor = nullptr; }
raii_wrapper::operator bool() const noexcept { return dtor != nullptr; }
raii_wrapper push_style_color(ImGuiCol_ var, const Color4& value)
{
ImGui::PushStyleColor(var, {value[0], value[1], value[2], value[3]});
return {[]{ ImGui::PopStyleColor(); }};
}
raii_wrapper push_id(StringView str)
{
ImGui::PushID(str.data(), str.data() + str.size());
return {[]{ ImGui::PopID(); }};
}
raii_wrapper push_style_var(ImGuiStyleVar_ var, float value)
{
ImGui::PushStyleVar(var, value);
return {[]{ ImGui::PopStyleVar(); }};
}
raii_wrapper push_style_var(ImGuiStyleVar_ var, Vector2 value)
{
ImGui::PushStyleVar(var, {value[0], value[1]});
return {[]{ ImGui::PopStyleVar(); }};
}
raii_wrapper tree_node(Containers::StringView name, ImGuiTreeNodeFlags flags)
{
if (ImGui::TreeNodeEx(name.data(), flags))
return {&ImGui::TreePop};
else
return {};
}
raii_wrapper begin_list_box(Containers::StringView name, ImVec2 size)
{
if (ImGui::BeginListBox(name.data(), size))
return {&ImGui::EndListBox};
else
return {};
}
raii_wrapper begin_table(const char* id, int ncols, ImGuiTableFlags flags, const ImVec2& outer_size, float inner_width)
{
if (ImGui::BeginTable(id, ncols, flags, outer_size, inner_width))
return {&ImGui::EndTable};
else
return {};
}
raii_wrapper begin_menu(Containers::StringView name, bool enabled)
{
if (ImGui::BeginMenu(name.data(), enabled))
return {&ImGui::EndMenu};
else
return {};
}
raii_wrapper begin_main_menu()
{
if (ImGui::BeginMainMenuBar())
return {&ImGui::EndMainMenuBar};
else
return {};
}
raii_wrapper begin_window(Containers::StringView name, ImGuiWindowFlags flags)
{
if (name.isEmpty())
name = "floormat editor";
if (ImGui::Begin(name.data(), nullptr, flags))
return {&ImGui::End};
else
return {};
}
} // namespace floormat::imgui
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