Kyle Isom
3148e16cf8
Multi-window: - Per-window ImGui contexts (fixes input, scroll, and rendering isolation) - Per-instance scroll and mouse state in ImGuiRenderer (no more statics) - Proper GL context activation during window destruction - ValidateBufferIndex guards against stale curbuf_ across shared buffers - Editor methods (CurrentBuffer, SwitchTo, CloseBuffer, etc.) use Buffers() accessor to respect shared buffer lists - New windows open with an untitled buffer - Scratch buffer reuse works in secondary windows - CMD-w on macOS closes only the focused window - Deferred new-window creation to avoid mid-frame ImGui context corruption Swap file cleanup: - SaveAs prompt handler now calls ResetJournal - cmd_save_and_quit now calls ResetJournal - Editor::Reset detaches all buffers before clearing - Tests for save-and-quit and editor-reset swap cleanup Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
59 lines
1.5 KiB
C++
59 lines
1.5 KiB
C++
/*
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* GUIFrontend - couples ImGuiInputHandler + GUIRenderer and owns SDL2/ImGui lifecycle
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*/
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#pragma once
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#include <memory>
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#include <vector>
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#include "Frontend.h"
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#include "GUIConfig.h"
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#include "ImGuiInputHandler.h"
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#include "ImGuiRenderer.h"
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#include "Editor.h"
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struct SDL_Window;
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struct ImGuiContext;
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typedef void *SDL_GLContext;
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class GUIFrontend final : public Frontend {
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public:
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GUIFrontend() = default;
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~GUIFrontend() override = default;
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bool Init(int &argc, char **argv, Editor &ed) override;
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void Step(Editor &ed, bool &running) override;
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void Shutdown() override;
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private:
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// Per-window state — each window owns its own ImGui context so that
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// NewFrame/Render cycles are fully independent (ImGui requires exactly
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// one NewFrame per Render per context).
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struct WindowState {
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SDL_Window *window = nullptr;
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SDL_GLContext gl_ctx = nullptr;
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ImGuiContext *imgui_ctx = nullptr;
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ImGuiInputHandler input{};
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ImGuiRenderer renderer{};
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Editor editor{};
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int width = 1280;
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int height = 800;
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bool alive = true;
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};
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// Open a new secondary window sharing the primary editor's buffer list.
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// Returns false if window creation fails.
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bool OpenNewWindow_(Editor &primary);
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// Initialize fonts and theme for a given ImGui context (must be current).
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void SetupImGuiStyle_();
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static void DestroyWindowResources_(WindowState &ws);
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static bool LoadGuiFont_(const char *path, float size_px);
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GUIConfig config_{};
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// Primary window (index 0 in windows_); created during Init.
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std::vector<std::unique_ptr<WindowState> > windows_;
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}; |