Dropping elemental-forms and swapping out with imgui.

Too much code for such little use. This should simplify porting.

src/xenia/app/emulator_window.cc

@@ -9,7 +9,7 @@
 
 #include "xenia/app/emulator_window.h"
 
-#include "third_party/elemental-forms/src/el/elements.h"
+#include "third_party/imgui/imgui.h"
 #include "xenia/base/clock.h"
 #include "xenia/base/logging.h"
 #include "xenia/base/platform.h"
@@ -17,6 +17,8 @@
 #include "xenia/base/threading.h"
 #include "xenia/emulator.h"
 #include "xenia/gpu/graphics_system.h"
+#include "xenia/ui/imgui_dialog.h"
+#include "xenia/ui/imgui_drawer.h"
 
 namespace xe {
 namespace app {
@@ -221,11 +223,10 @@ void EmulatorWindow::CpuTimeScalarSetDouble() {
 void EmulatorWindow::CpuBreakIntoDebugger() {
   auto debugger = emulator()->debugger();
   if (!debugger) {
-    auto message_form = new el::MessageForm(window_->root_element(),
-                                            TBIDC("debug_error_window"));
-    message_form->Show("Xenia Debugger",
-                       "Xenia must be launched with the --debug flag in order "
-                       "to enable debugging.");
+    xe::ui::ImGuiDialog::ShowMessageBox(window_.get(), "Xenia Debugger",
+                                        "Xenia must be launched with the "
+                                        "--debug flag in order to enable "
+                                        "debugging.");
     return;
   }
   if (debugger->execution_state() == debug::ExecutionState::kRunning) {

src/xenia/app/main_resources.rc

@@ -1,5 +1 @@
 //{{NO_DEPENDENCIES}}
-
-#include "third_party\\elemental-forms\\resources.rc"
-
-//IDR_xe_ui_main_resources_skin_bg_tile_png                                   RCDATA ".\\resources\\skin\\bg_tile.png"

src/xenia/app/premake5.lua

@@ -8,7 +8,6 @@ project("xenia-app")
   targetname("xenia")
   language("C++")
   links({
-    "elemental-forms",
     "gflags",
     "imgui",
     "xenia-apu",
@@ -33,7 +32,6 @@ project("xenia-app")
   defines({
   })
   includedirs({
-    project_root.."/third_party/elemental-forms/src",
     project_root.."/build_tools/third_party/gflags/src",
   })
   local_platform_files()
@@ -46,7 +44,6 @@ project("xenia-app")
   })
   resincludedirs({
     project_root,
-    project_root.."/third_party/elemental-forms",
   })
 
   filter("platforms:Windows")