[client] imgui: another missed file

Clearly I need to get some sleep :)

client/src/overlay/config.c

@@ -0,0 +1,156 @@
+/**
+ * Looking Glass
+ * Copyright (C) 2017-2021 The Looking Glass Authors
+ * https://looking-glass.io
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc., 59
+ * Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "interface/overlay.h"
+#include "cimgui.h"
+#include "overlay_utils.h"
+
+#include "../main.h"
+#include "../overlays.h"
+#include "version.h"
+
+#include "common/appstrings.h"
+
+static bool config_init(void ** udata, void * params)
+{
+  return true;
+}
+
+static void config_free(void * udata)
+{
+}
+
+static void graphIterator(GraphHandle handle, const char * name, bool * enabled,
+    void * udata)
+{
+  igTableNextColumn();
+  igCheckbox(name, enabled);
+}
+
+static int config_render(void * udata, bool interactive, struct Rect * windowRects,
+    int maxRects)
+{
+  if (!interactive)
+    return 0;
+
+  const float fontSize = igGetFontSize();
+  const ImGuiViewport * viewport = igGetMainViewport();
+  igSetNextWindowPos(
+      (ImVec2){
+        viewport->WorkPos.x + 100,
+        viewport->WorkPos.y + 30
+      },
+      ImGuiCond_FirstUseEver,
+      (ImVec2){}
+  );
+
+  igSetNextWindowSize(
+      (ImVec2){550, 680},
+      ImGuiCond_FirstUseEver);
+
+  if (!igBegin("Configuration", NULL, ImGuiWindowFlags_MenuBar))
+  {
+    overlayGetImGuiRect(windowRects);
+    igEnd();
+    return 1;
+  }
+
+  igBeginMenuBar();
+  igEndMenuBar();
+
+  if (igCollapsingHeaderBoolPtr("About Looking Glass", NULL, 0))
+  {
+    igText(LG_COPYRIGHT_STR);
+    igText(LG_WEBSITE_STR);
+    igText(LG_VERSION_STR);
+    igSeparator();
+    igTextWrapped(LG_LICENSE_STR);
+  }
+
+  if (igCollapsingHeaderBoolPtr("Help & Support", NULL, 0))
+  {
+    igBeginTable("split", 2, 0, (ImVec2){}, 0.0f);
+    igTableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, fontSize * 9.0f, 0);
+    for(const StringPair * help = LG_HELP_LINKS; help->name; ++help)
+    {
+      igTableNextColumn();
+      igBulletText(help->name);
+      igTableNextColumn();
+      igTextWrapped(help->value);
+    }
+    igEndTable();
+  }
+
+  if (igCollapsingHeaderBoolPtr("The Looking Glass Team / Donations", NULL, 0))
+  {
+    for(const struct LGTeamMember * member = LG_TEAM; member->name; ++member)
+    {
+      if (igTreeNodeStr(member->name))
+      {
+        igSpacing();
+        igTextWrapped(member->blurb);
+        if (member->donate[0].name)
+        {
+          igSpacing();
+          igTextWrapped(
+              "If you would like to show financial support for his work you can "
+              "do so directly via the following platform(s):");
+
+          igSeparator();
+          igBeginTable("split", 2, 0, (ImVec2){}, 0.0f);
+          igTableSetupColumn("", ImGuiTableColumnFlags_WidthFixed,
+              fontSize * 10.0f, 0);
+          for(const StringPair * donate = member->donate; donate->name; ++donate)
+          {
+            igTableNextColumn();
+            igBulletText(donate->name);
+            igTableNextColumn();
+            igText(donate->value);
+          }
+          igEndTable();
+        }
+        igTreePop();
+        igSeparator();
+      }
+    }
+  }
+
+  if(igCollapsingHeaderBoolPtr("Performance Metrics", NULL, 0))
+  {
+    igCheckbox("Show Timing Graphs", &g_state.showTiming);
+    igSeparator();
+
+    igBeginTable("split", 2, 0, (ImVec2){}, 0);
+    overlayGraph_iterate(graphIterator, NULL);
+    igEndTable();
+  }
+
+  overlayGetImGuiRect(windowRects);
+  igEnd();
+  return 1;
+}
+
+struct LG_OverlayOps LGOverlayConfig =
+{
+  .name           = "Config",
+  .init           = config_init,
+  .free           = config_free,
+  .render         = config_render
+};