a

1 files changed, 134 insertions, 0 deletions

diff --git a/main/gui.cpp b/main/gui.cpp
new file mode 100644
index 00000000..d5a8f149
--- /dev/null
+++ b/main/gui.cpp
@@ -0,0 +1,134 @@
+#include "app.hpp"
+#include "imgui-raii.hpp"
+#include <Magnum/GL/Renderer.h>
+#include <Magnum/ImGuiIntegration/Integration.h>
+
+namespace floormat {
+
+using namespace floormat::imgui;
+
+void app::setup_menu()
+{
+    GL::Renderer::setBlendEquation(GL::Renderer::BlendEquation::Add, GL::Renderer::BlendEquation::Add);
+    GL::Renderer::setBlendFunction(GL::Renderer::BlendFunction::SourceAlpha, GL::Renderer::BlendFunction::OneMinusSourceAlpha);
+}
+
+void app::display_menu()
+{
+    GL::Renderer::enable(GL::Renderer::Feature::Blending);
+    GL::Renderer::enable(GL::Renderer::Feature::ScissorTest);
+    GL::Renderer::disable(GL::Renderer::Feature::FaceCulling);
+    GL::Renderer::disable(GL::Renderer::Feature::DepthTest);
+    _imgui.drawFrame();
+    GL::Renderer::enable(GL::Renderer::Feature::ScissorTest);
+}
+
+void app::do_menu()
+{
+    _imgui.newFrame();
+    float main_menu_height = 0;
+    if (auto b = begin_main_menu())
+    {
+        if (auto b = begin_menu("File"))
+        {
+            ImGui::MenuItem("Open", "Ctrl+O");
+            ImGui::MenuItem("Recent");
+            ImGui::Separator();
+            ImGui::MenuItem("Save", "Ctrl+S");
+            ImGui::MenuItem("Save as...", "Ctrl+Shift+S");
+            ImGui::Separator();
+            ImGui::MenuItem("Close");
+        }
+        if (auto b = begin_menu("Mode"))
+        {
+            ImGui::MenuItem("Select", "F1", _editor.mode() == editor_mode::select);
+            ImGui::MenuItem("Floor", "F2", _editor.mode() == editor_mode::floor);
+            ImGui::MenuItem("Walls", "F3", _editor.mode() == editor_mode::walls);
+        }
+
+        main_menu_height = ImGui::GetContentRegionMax().y;
+    }
+    draw_menu_(_editor.floor(), main_menu_height);
+}
+
+void app::draw_menu_(tile_type& type, float main_menu_height)
+{
+    if (ImGui::GetIO().WantTextInput && !isTextInputActive())
+        startTextInput();
+    else if (!ImGui::GetIO().WantTextInput && isTextInputActive())
+        stopTextInput();
+
+    auto& style = ImGui::GetStyle();
+    ImGui::StyleColorsDark(&style);
+    style.WindowPadding = {8, 8};
+    style.WindowBorderSize = {};
+    style.FramePadding = {4, 4};
+    style.Colors[ImGuiCol_WindowBg] = {0, 0, 0, .5};
+    style.Colors[ImGuiCol_FrameBg] = {0, 0, 0, 0};
+
+    if (main_menu_height > 0)
+    {
+        ImGui::SetNextWindowPos({0, main_menu_height+style.WindowPadding.y});
+        ImGui::SetNextFrameWantCaptureKeyboard(false);
+        ImGui::SetNextWindowSize({450, windowSize()[1] - main_menu_height - style.WindowPadding.y});
+        if (const auto flags = ImGuiWindowFlags_(ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoSavedSettings);
+            auto b = begin_window({}, flags))
+        {
+            const float window_width = ImGui::GetWindowWidth() - 32;
+
+            char buf[64];
+            //ImGui::SetNextWindowBgAlpha(.2f);
+
+            if (auto b = begin_list_box("##tiles", {-FLT_MIN, -1}))
+            {
+                for (const auto& [k, v] : type)
+                {
+                    const auto& k_ = k;
+                    const auto& v_ = v;
+                    const auto click_event = [&] {
+                        if (ImGui::IsItemClicked(ImGuiMouseButton_Right))
+                        _editor.floor().select_tile_permutation(v_);
+                    };
+                    const auto add_tile_count = [&] {
+                        snprintf(buf, sizeof(buf), "%zu", (std::size_t)v_->num_tiles().product());
+                        ImGui::SameLine(window_width - ImGui::CalcTextSize(buf).x - style.FramePadding.x - 4);
+                        ImGui::Text("%s", buf);
+                    };
+                    const std::size_t N = v->num_tiles().product();
+                    if (const auto flags = ImGuiTreeNodeFlags_(ImGuiTreeNodeFlags_SpanFullWidth | ImGuiTreeNodeFlags_Framed);
+                        auto b = tree_node(k.data(), flags))
+                    {
+                        click_event();
+                        add_tile_count();
+                        auto c = push_style_var(ImGuiStyleVar_FramePadding, {1, 1});
+                        auto c2 = push_style_var(ImGuiStyleVar_FrameBorderSize, 3);
+                        auto c3 = push_style_color(ImGuiCol_Button, {1, 1, 1, 1});
+                        constexpr std::size_t per_row = 8;
+                        for (std::size_t i = 0; i < N; i++)
+                        {
+                            if (i > 0 && i % per_row == 0)
+                                ImGui::NewLine();
+                            snprintf(buf, sizeof(buf), "##item_%zu", i);
+                            const auto uv = v->texcoords_for_id(i);
+                            ImGui::ImageButton(buf, (void*)&v->texture(), {TILE_SIZE[0]/2, TILE_SIZE[1]/2},
+                                               { uv[3][0], uv[3][1] }, { uv[0][0], uv[0][1] });
+                            if (ImGui::IsItemClicked())
+                                _editor.floor().select_tile(v, (std::uint8_t)i);
+                            else
+                                click_event();
+                            ImGui::SameLine();
+                        }
+                        ImGui::NewLine();
+                    }
+                    else
+                    {
+                        click_event();
+                        add_tile_count();
+                    }
+                }
+            }
+        }
+    }
+}
+
+} // namespace floormat