From e89dc91182a94e48ca9220a2fe075db680ddff04 Mon Sep 17 00:00:00 2001
From: Fox Caminiti <fox@foxcam.net>
Date: Tue, 16 Aug 2022 15:06:45 -0400
Subject: undo functional

---
 my_imgui_widgets.cpp | 62 ++++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 50 insertions(+), 12 deletions(-)

(limited to 'my_imgui_widgets.cpp')

diff --git a/my_imgui_widgets.cpp b/my_imgui_widgets.cpp
index d1d8d83..b924d55 100644
--- a/my_imgui_widgets.cpp
+++ b/my_imgui_widgets.cpp
@@ -70,6 +70,26 @@ ImGui_KeyframeDragging(project_data *File, project_state *State, ui *UI, propert
     }
 }
 
+static void
+ImGui_InteractSliderProperty(project_state *State, memory *Memory, property_channel *Property)
+{
+    ImGui::DragScalar(Property->Name, ImGuiDataType_Float, &Property->CurrentValue.f,
+                      Property->ScrubVal.f, &Property->MinVal.f, &Property->MaxVal.f, "%f");
+    if (ImGui::IsItemActivated()) {
+        Action_Entry_Begin(Memory, action_entry_default, "Tranforms interact");
+        State->InteractCache[0] = Property->CurrentValue.f;
+    }
+    if (ImGui::IsItemActive()) {
+        State->UpdateFrame = true;
+    }
+    if (ImGui::IsItemDeactivated()) {
+        Action_Change_Commit(Memory, &Property->CurrentValue.f, &State->InteractCache[0],
+                             &Property->CurrentValue.f, action_change_r32);
+        Action_Entry_End(Memory);
+        State->UpdateFrame = true;
+    }
+}
+
 // Returns a normalized UV position of the composition
 static v2
 ImGui_ScreenPointToCompUV(ImVec2 ViewportMin, ImVec2 CompPos, ImVec2 CompZoom, ImVec2 MousePos)
@@ -81,6 +101,19 @@ ImGui_ScreenPointToCompUV(ImVec2 ViewportMin, ImVec2 CompPos, ImVec2 CompZoom, I
     return V2(Result);
 }
 
+static void
+ImGui_DebugUndoTree(project_data *File, memory *Memory)
+{
+    ImGui::SetNextWindowSize(ImVec2(200, 800));
+    ImGui::Begin("undotree");
+    for (int i = 0; i < Memory->Action.NumberOfEntries; i++) {
+        action_entry Entry = Memory->Action.Entry[i];
+        bool32 CurrentPos = (i < Memory->Action.Index);
+        ImGui::MenuItem(Entry.Name, NULL, CurrentPos);
+    }
+    ImGui::End();
+}
+
 static void
 ImGui_DebugMemoryViewer(project_data *File, memory *Memory)
 {
@@ -194,11 +227,7 @@ ImGui_PropertiesPanel(project_data *File, project_state *State, ui *UI, memory *
             if (ImGui::Button("K"))
                 ManualKeyframeInsertF(Property, Memory, File->CurrentFrame, Property->CurrentValue.f);
             ImGui::SameLine();
-            if (ImGui::DragScalar(Property->Name, ImGuiDataType_Float, &Property->CurrentValue.f,
-                                  Property->ScrubVal.f, &Property->MinVal.f, &Property->MaxVal.f, "%f"))
-            {
-                State->UpdateFrame = true;
-            }
+            ImGui_InteractSliderProperty(State, Memory, Property);
             ImGui::PopID();
         }
         for (int h = 0; h < Layer->NumberOfEffects; h++) {
@@ -221,9 +250,9 @@ ImGui_PropertiesPanel(project_data *File, project_state *State, ui *UI, memory *
                 for (int i = 0; i < Effect->NumberOfProperties; i++) {
                     property_channel *Property = &Effect->Property[i];
                     ImGui::PushID(Property);
-                    if (Property->VarType == type_real)
-                        if (ImGui::DragScalar(Property->Name, ImGuiDataType_Float, &Property->CurrentValue.f, 0.005f, &Property->MaxVal.f, &Property->MaxVal.f, "%f"))
-                            State->UpdateFrame = true;
+                    if (Property->VarType == type_real) {
+                        ImGui_InteractSliderProperty(State, Memory, Property);
+                    }
                     if (Property->VarType == type_color)
                         if (ImGui::ColorEdit4("color 1", &Property->CurrentValue.f, ImGuiColorEditFlags_Float))
                             State->UpdateFrame = true;
@@ -1493,6 +1522,15 @@ ImGui_ProcessInputs(project_data *File, project_state *State, comp_buffer *CompB
         State->UpdateKeyframes = true;
     }
 
+    if (ImGui::IsKeyPressed(ImGuiKey_Z)) {
+        if (io.KeyCtrl && io.KeyShift) {
+            Action_Redo(Memory);
+        } else if (io.KeyCtrl) {
+            Action_Undo(Memory);
+        }
+        State->UpdateFrame = true;
+        State->UpdateKeyframes = true;
+    }
 
     if (ImGui::IsKeyPressed(ImGuiKey_Space)) {
         if (io.KeyShift) {
@@ -1510,13 +1548,13 @@ ImGui_ProcessInputs(project_data *File, project_state *State, comp_buffer *CompB
     }
 
     if (ImGui::IsKeyPressed(ImGuiKey_R) && State->NumberOfSelectedLayers)
-        TransformsInteract(File, State, UI, sliding_rotation);
+        TransformsInteract(File, State, Memory, UI, sliding_rotation);
     if (ImGui::IsKeyPressed(ImGuiKey_S)  && State->NumberOfSelectedLayers)
-        TransformsInteract(File, State, UI, sliding_scale);
+        TransformsInteract(File, State, Memory, UI, sliding_scale);
     if (ImGui::IsKeyPressed(ImGuiKey_G)  && State->NumberOfSelectedLayers)
-        TransformsInteract(File, State, UI, sliding_position);
+        TransformsInteract(File, State, Memory, UI, sliding_position);
     if (ImGui::IsKeyPressed(ImGuiKey_A)  && State->NumberOfSelectedLayers)
-        TransformsInteract(File, State, UI, sliding_anchorpoint);
+        TransformsInteract(File, State, Memory, UI, sliding_anchorpoint);
 
     if (ImGui::IsKeyPressed(ImGuiKey_1))
         LoadTestFootage(File, State, Memory);
-- 
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