feat(api): add bindings for imgui-knobs (#211)

* feat(api): add bindings for imgui-knobs

Add bindings for the imgui-knobs extension

* Update example/src/main/java/Extra.java

Update styling

Co-authored-by: SpaiR <klimbetoo@gmail.com>

* Update example/src/main/java/Extra.java

Update styling

Co-authored-by: SpaiR <klimbetoo@gmail.com>

* Update .gitignore

Remove gradle.properties from git ignore

* Update styling

Update styling, field names set to UPPER_CASE, remove throwing exceptions from constructors, refactored flags to general style

---------

Co-authored-by: SpaiR <klimbetoo@gmail.com>

example/src/main/java/ExampleKnobs.java

@@ -0,0 +1,46 @@
+import imgui.ImGui;
+import imgui.extension.imguiknobs.ImGuiKnobs;
+import imgui.extension.imguiknobs.flag.ImGuiKnobFlags;
+import imgui.extension.imguiknobs.flag.ImGuiKnobVariant;
+import imgui.flag.ImGuiCond;
+import imgui.flag.ImGuiWindowFlags;
+import imgui.type.ImBoolean;
+import imgui.type.ImFloat;
+
+public class ExampleKnobs {
+
+    private static final ImFloat EXAMPLE_TICK_KNOB_VAL = new ImFloat(0);
+    private static final ImFloat EXAMPLE_DOT_KNOB_VAL = new ImFloat(0);
+    private static final ImFloat EXAMPLE_SPACE_KNOB_VAL = new ImFloat(0);
+    private static final ImFloat EXAMPLE_WIPER_KNOB_VAL = new ImFloat(0);
+    private static final ImFloat EXAMPLE_WIPER_DOT_KNOB_VAL = new ImFloat(0);
+    private static final ImFloat EXAMPLE_WIPER_ONLY_KNOB_VAL = new ImFloat(0);
+    private static final ImFloat EXAMPLE_STEPPED_KNOB_VAL = new ImFloat(0);
+
+    public static void show(final ImBoolean showKnobsWindow) {
+        ImGui.setNextWindowSize(200, 400, ImGuiCond.Once);
+        ImGui.setNextWindowPos(ImGui.getMainViewport().getPosX() + 200, ImGui.getMainViewport().getPosY() + 200, ImGuiCond.Once);
+        if (ImGui.begin("Knobs Demo Window", showKnobsWindow, ImGuiWindowFlags.NoResize | ImGuiWindowFlags.NoCollapse)) {
+            ImGui.textWrapped("This is a demo for dear ImGui Knobs");
+            if (ImGui.beginChild("Float Knobs")) {
+                ImGuiKnobs.knobFloat("Example Tick Knob", EXAMPLE_TICK_KNOB_VAL, 0.0f, 10.0f, 0.2f, "%.1f", ImGuiKnobVariant.TICK, 50.0f, ImGuiKnobFlags.NONE, 1);
+
+                ImGuiKnobs.knobFloat("Example Dot Knob", EXAMPLE_DOT_KNOB_VAL, 0.0f, 10.0f, 0.2f, "%.1f", ImGuiKnobVariant.DOT, 50.0f, ImGuiKnobFlags.NONE, 1);
+
+                ImGuiKnobs.knobFloat("Example Space Knob", EXAMPLE_SPACE_KNOB_VAL, 0.0f, 10.0f, 0.2f, "%.1f", ImGuiKnobVariant.SPACE, 50.0f, ImGuiKnobFlags.NONE, 1);
+
+                ImGuiKnobs.knobFloat("Example Wiper Knob", EXAMPLE_WIPER_KNOB_VAL, 0.0f, 10.0f, 0.2f, "%.1f", ImGuiKnobVariant.WIPER, 50.0f, ImGuiKnobFlags.NONE, 1);
+
+                ImGuiKnobs.knobFloat("Example Wiper Dot Knob", EXAMPLE_WIPER_DOT_KNOB_VAL, 0.0f, 10.0f, 0.2f, "%.1f", ImGuiKnobVariant.WIPER_DOT, 50.0f, ImGuiKnobFlags.NONE, 1);
+
+                ImGuiKnobs.knobFloat("Example Wiper Only Knob", EXAMPLE_WIPER_ONLY_KNOB_VAL, 0.0f, 10.0f, 0.2f, "%.1f", ImGuiKnobVariant.WIPER_ONLY, 50.0f, ImGuiKnobFlags.NONE, 1);
+
+                ImGuiKnobs.knobFloat("Example Stepped Knob", EXAMPLE_STEPPED_KNOB_VAL, 0.0f, 10.0f, 0.2f, "%.1f", ImGuiKnobVariant.STEPPED, 50.0f, ImGuiKnobFlags.NONE, 1);
+                ImGui.endChild();
+            }
+
+            ImGui.end();
+        }
+    }
+
+}

example/src/main/java/Extra.java

@@ -14,6 +14,7 @@ public class Extra {
     private static final ImBoolean SHOW_IMGUI_MEMORY_EDITOR_WINDOW = new ImBoolean(false);
     private static final ImBoolean SHOW_IMGUI_CANVAS_EDITOR_WINDOW = new ImBoolean(false);
     private static final ImBoolean SHOW_IMGUI_INPUT_CALLBACK_WINDOW = new ImBoolean(false);
+    private static final ImBoolean SHOW_IMGUI_KNOBS_DEMO = new ImBoolean(false);
 
     private static final Graph GRAPH = new Graph();
 
@@ -30,6 +31,7 @@ public class Extra {
         ImGui.checkbox("Show ImGui MemoryEditor Demo Window", SHOW_IMGUI_MEMORY_EDITOR_WINDOW);
         ImGui.checkbox("Show ImGui Canvas Demo Window", SHOW_IMGUI_CANVAS_EDITOR_WINDOW);
         ImGui.checkbox("Show Imgui InputText Callback Window", SHOW_IMGUI_INPUT_CALLBACK_WINDOW);
+        ImGui.checkbox("Show Imgui Knobs Demo", SHOW_IMGUI_KNOBS_DEMO);
 
         if (SHOW_DEMO_WINDOW.get()) {
             ImGui.showDemoWindow(SHOW_DEMO_WINDOW);
@@ -74,5 +76,9 @@ public class Extra {
         if (SHOW_IMGUI_INPUT_CALLBACK_WINDOW.get()) {
             ExampleInputTextCallback.show(SHOW_IMGUI_INPUT_CALLBACK_WINDOW);
         }
+
+        if (SHOW_IMGUI_KNOBS_DEMO.get()) {
+            ExampleKnobs.show(SHOW_IMGUI_KNOBS_DEMO);
+        }
     }
 }