imgui: Store 'imgui.ini' contents in clap settings

Instead of letting imgui store its ini files all over the place, store its settings in our own settings file. This also has the added benefit of actually working in the browser. Load imgui settings when the global settings are loaded. Right now, it's just a straight up ini file's contents stuffed into a string instead of individual settings encoded in a json tree. Signed-off-by: Alexander Shishkin <[email protected]>
virtuoso · Oct 31, 2024 · 5deae4e · 5deae4e
1 parent 3cd10d5
commit 5deae4e
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Showing 3 changed files with 24 additions and 0 deletions.
diff --git a/core/ui-debug.h b/core/ui-debug.h
@@ -19,7 +19,9 @@ static inline void ui_show_debug_once(const char *debug_name)
         ui_show_debug(str_basename(debug_name));
 }
 
+struct settings;
 void imgui_init(struct clap_context *ctx, void *data, int width, int height);
+void imgui_set_settings(struct settings *rs);
 void imgui_done(void);
 void imgui_render_begin(int width, int height);
 void imgui_render(void);

diff --git a/core/ui-imgui.c b/core/ui-imgui.c
@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: Apache-2.0
 #include "common.h"
+#include "settings.h"
 #include "ui-debug.h"
 
 #ifdef __EMSCRIPTEN__
@@ -11,9 +12,21 @@
 
 #include "imgui_impl_opengl3.h"
 
+static struct settings *settings;
 static struct ImGuiContext *ctx;
 static struct ImGuiIO *io;
 
+void imgui_set_settings(struct settings *rs)
+{
+    settings = rs;
+
+    const char *ini = settings_get_str(settings, "imgui_config");
+    if (!ini)
+        return;
+
+    igLoadIniSettingsFromMemory(ini, strlen(ini));
+}
+
 void imgui_render_begin(int width, int height)
 {
     io->DisplaySize.x = width;
@@ -35,13 +48,20 @@ void imgui_render(void)
 {
     igRender();
     ImGui_ImplOpenGL3_RenderDrawData(igGetDrawData());
+
+    if (io->WantSaveIniSettings && settings) {
+        settings_set_string(settings, "imgui_config", igSaveIniSettingsToMemory(NULL));
+        io->WantSaveIniSettings = false;
+    }
 }
 
 void imgui_init(struct clap_context *clap_ctx, void *data, int width, int height)
 {
     ctx = igCreateContext(NULL);
     io = igGetIO();
 
+    io->IniFilename = NULL;
+    io->LogFilename = NULL;
     io->DisplaySize.x = width;
     io->DisplaySize.y = height;
 

diff --git a/demo/ldjam56/onehandclap.c b/demo/ldjam56/onehandclap.c
@@ -245,6 +245,8 @@ static void settings_onload(struct settings *rs, void *data)
     float gain = settings_get_num(rs, "music_volume");
 
     sound_set_gain(intro_sound, gain);
+
+    imgui_set_settings(rs);
 }
 
 static int handle_input(struct message *m, void *data)