Added missing file

core/src/gui/dialogs/dialog_box.h

@@ -0,0 +1,51 @@
+#pragma once
+#include "dialog_box.h"
+#include <imgui.h>
+#include <string>
+#include <gui/gui.h>
+
+#define GENERIC_DIALOG_BUTTONS_YES_NO           "Yes\0No\0"
+#define GENERIC_DIALOG_BUTTONS_APPLY_CANCEL     "Apply\0Cancel\0"
+
+#define GENERIC_DIALOG_BUTTON_YES       0
+#define GENERIC_DIALOG_BUTTON_NO        1
+#define GENERIC_DIALOG_BUTTON_APPLY     0
+#define GENERIC_DIALOG_BUTTON_CANCE     1
+
+namespace ImGui {
+    template<typename Func>
+    int GenericDialog(const char* id, bool& open, const char* buttons, Func draw) {
+        // If not open, return
+        if (!open) { return -1; }
+
+        // Draw popup
+        gui::mainWindow.lockWaterfallControls = true;
+        std::string idstr = std::string("##") + std::string(id);
+        ImGui::OpenPopup(id);
+        if (ImGui::BeginPopup(id, ImGuiWindowFlags_NoResize)) {
+            // Draw widgets
+            draw();
+
+            // Draw buttons
+            int bid = 0;
+            while (buttons[0]) {
+                int len = strlen(buttons);
+
+                // Draw button
+                if (bid) { ImGui::SameLine(); }
+                if (ImGui::Button((buttons + idstr).c_str())) {
+                    open = false;
+                    ImGui::EndPopup();
+                    return bid;
+                }
+
+                buttons += len + 1;
+                bid++;
+            }
+
+            ImGui::EndPopup();
+        }
+
+        return -1;
+    }
+}