add legend functionality

- edit
- delete
- add

#6

src/work-calendar.cpp

@@ -51,6 +51,15 @@ void init(){
 
 static const char* month_names[] = {"Januar", "Februar", "März", "April", "Mai", "Juni", "Juli", "August", "September", "Oktober", "November", "Dezember"};
 
+typedef struct {
+    bool editing = false;
+    float color[3];
+    char name[64] = "New Category";
+} Category;
+
+size_t num_categories = 0;
+Category categories[128];
+
 void per_frame(){
     ImGuiID main_viewport_dock = ImGui::GetID("main_viewport_dock");
     if (!ImGui::DockBuilderGetNode(main_viewport_dock)) {
@@ -195,40 +204,50 @@ void per_frame(){
     
     // Legende
     if (ImGui::Begin("Legende", 0)) {
-        static float col[3] = {};
-        static bool editing = false;
-        static char name[64] = "color";
-
         if(ImGui::BeginTable("Legend", 4, ImGuiTableFlags_SizingStretchProp)) {
             ImGui::TableSetupColumn("Color",  ImGuiTableColumnFlags_WidthFixed);
             ImGui::TableSetupColumn("Name",   ImGuiTableColumnFlags_WidthStretch);
             ImGui::TableSetupColumn("Edit",   ImGuiTableColumnFlags_WidthFixed);
             ImGui::TableSetupColumn("Delete", ImGuiTableColumnFlags_WidthFixed );
 
+            for (size_t i = 0; i < num_categories; i++) {
+                auto &category = categories[i];
+                ImGui::PushID(i);
+                ImGui::TableNextRow();
+
+                ImGui::TableSetColumnIndex(0);
+                ImGuiColorEditFlags color_edit_flags = ImGuiColorEditFlags_NoPicker | ImGuiColorEditFlags_NoOptions;
+                ImGui::ColorEdit3(category.name, category.color, ImGuiColorEditFlags_NoLabel | ImGuiColorEditFlags_NoInputs | (category.editing ? 0 : color_edit_flags));
+
+                ImGui::TableSetColumnIndex(1);
+                if (category.editing) {
+                    ImGui::SetNextItemWidth(-1);
+                    if(ImGui::InputText("##name", category.name, IM_ARRAYSIZE(category.name), ImGuiInputTextFlags_EnterReturnsTrue)) {
+                        category.editing = false;
+                    }
+                } else {
+                    ImGui::Text("%s", category.name);
+                }
+
+                ImGui::TableSetColumnIndex(2);
+                if (ImGui::Button("e"))
+                    category.editing = !category.editing;
+
+                ImGui::TableSetColumnIndex(3);
+                if (ImGui::Button("d")) {
+                    num_categories--;
+                }
+
+                ImGui::PopID();
+            }
+
             ImGui::TableNextRow();
             ImGui::TableSetColumnIndex(0);
-
+            if (ImGui::Button("+")) {
-            //ImGui::ColorPicker3("colortest", col);
+                categories[num_categories] = {};
-            ImGui::ColorEdit3(name, col, ImGuiColorEditFlags_NoLabel | ImGuiColorEditFlags_NoInputs);
+                num_categories++;
-            ImGui::TableSetColumnIndex(1);
-            if (editing) {
-                ImGui::SetNextItemWidth(-1);
-                if(ImGui::InputText("##name", name, IM_ARRAYSIZE(name), ImGuiInputTextFlags_EnterReturnsTrue)) {
-                    editing = false;
-                }
-            } else {
-                ImGui::Text("%s", name);
             }
 
-            ImGui::TableSetColumnIndex(2);
-            if(ImGui::Button("e")) {
-                editing = true;
-            }
-
-            //TODO
-            ImGui::TableSetColumnIndex(3);
-            ImGui::Button("d");
-
             ImGui::EndTable();
         }
     }