Add Modal popup and UI shadow system to Editor UI

source/editor/Editor.cpp

@@ -41,6 +41,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "Widgets/Profiler.h"
 #include "Widgets/RenderOptions.h"
 #include "Widgets/ScriptEditor.h"
+#include "Widgets/Shadows.h"
 //===============================================
 
 //= NAMESPACES =====
@@ -106,6 +107,7 @@ Editor::Editor(const vector<string>& args)
     SP_SUBSCRIBE_TO_EVENT(spartan::EventType::Sdl, SP_EVENT_HANDLER_VARIANT_STATIC(process_event));
 
     GeneralWindows::Initialize(this);
+    Modal::Initialize(this);
 }
 
 Editor::~Editor()
@@ -154,6 +156,13 @@ void Editor::Tick()
 
                 // various windows that don't belong to a certain widget
                 GeneralWindows::Tick();
+
+                // Modal popup system (draws on top of everything when shown)
+                Modal::Tick();
+
+                // Draw all pending shadows AFTER widgets queue them, but BEFORE ImGui::Render()
+                // This draws to the background draw list so shadows appear behind windows
+                spartan::Shadow::FlushPendingShadows();
             }
         }
 

source/editor/Editor.h

@@ -24,6 +24,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 //= INCLUDES ==============
 #include <vector>
 #include <memory>
+#include "Modal.h"
 #include "Widgets/Widget.h"
 //=========================
 

source/editor/GeneralWindows.cpp

@@ -22,6 +22,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 //= INCLUDES =====================
 #include "pch.h"
 #include "GeneralWindows.h"
+#include "Widgets/Shadows.h"
 #include "Windows/WorldSelector.h"
 #include "Windows/Contributors.h"
 #include "ImGui/Source/imgui.h"

source/editor/ImGui/ImGui_Extension.h

@@ -197,6 +197,54 @@ namespace ImGuiSp
             ImColor(0, 0, 0, 0) // border
         );
     }
+
+    //= Rectangle =============================================================================
+
+    inline ImRect get_item_rect()
+    {
+        return {
+            ImGui::GetItemRectMin(), 
+            ImGui::GetItemRectMax()
+        };
+    }
+
+    inline ImRect rectangle_expanded(const ImRect& rect, float x, float y)
+    {
+        ImRect result = rect;
+        result.Min.x -= x;
+        result.Min.y -= y;
+        result.Max.x += x;
+        result.Max.y += y;
+        return result;
+    }
+
+    inline ImRect rectangle_offset(const ImRect& rect, float x, float y)
+    {
+        ImRect result = rect;
+        result.Min.x += x;
+        result.Min.y += y;
+        result.Max.x += x;
+        result.Max.y += y;
+        return result;
+    }
+
+    inline ImRect rectangle_offset(const ImRect& rect, ImVec2 xy)
+    {
+        return rectangle_offset(rect, xy.x, xy.y);
+    }
+
+    static bool hyper_link(const char* label, ImU32 lineColor = IM_COL32(186, 66, 30, 255), float lineThickness = GImGui->Style.FrameBorderSize)
+    {
+        ImGui::Text(label);
+        const ImRect rect = rectangle_expanded(get_item_rect(), lineThickness, lineThickness);
+        if (ImGui::IsItemHovered())
+        {
+            ImGui::GetWindowDrawList()->AddLine({rect.Min.x, rect.Max.y}, rect.Max, lineColor, lineThickness);
+            ImGui::SetMouseCursor(ImGuiMouseCursor_Hand);
+            return ImGui::IsMouseReleased(ImGuiMouseButton_Left);
+        }
+        return false;
+    }
 
     struct DragDropPayload
     {