UI slider, float and text inputs

1 files changed, 48 insertions, 3 deletions

diff --git a/ui.hpp b/ui.hpp
index abb4f69..9d95827 100644
--- a/ui.hpp
+++ b/ui.hpp
@@ -97,7 +97,7 @@ struct UI {
 	Vertex_Buffer mesh;
 	Pipeline* pipeline;
 	Render_Pass* render_pass;
-	Element* root, * hot, * hovered;
+	Element* root, * hot, * hovered, * active;
 	Rect area;
 	bool layout_dirty;
 
@@ -129,6 +129,7 @@ struct UI {
 	);
 	void destroy();
 	void layout(int w, int h);
+	void text_input(const char* buf);
 	void update(Arena* s);
 	void render(Arena* s, Texture_Id target);
 
@@ -148,8 +149,13 @@ struct UI {
 			click,
 			destroy,
 			activate,
-			deactivate
+			deactivate,
+			input_changed,
+			input_finalised,
+			text_typed,
+			text_backspaced
 		} type;
+		void* payload;
 	};
 
 	typedef int (*Message_Handler)(Element* e, const Message& m);
@@ -182,7 +188,7 @@ struct UI {
 
 		void add_child(Element* ch);
 		void remove_child(Element* ch);
-		void message(const Message& msg);
+		void message(const Message& msg, bool recurse = false);
 		void render();
 
 		bool enabled();
@@ -221,6 +227,45 @@ struct UI {
 		void on_render() override;
 	};
 
+	typedef int (*Input_Filter)(char ch);
+
+	struct Input : Element {
+		Input_Filter filter;
+		char* buf;
+		int buf_size;
+		Input(UI* ui, Element* parent, Input_Filter f);
+		~Input();
+		Rect layout(const Rect& avail) override;
+		void on_render() override;
+		void on_message(const Message& m) override;
+		void set_text(const char* t);
+		void add_text(const char* s);
+	};
+
+	struct Float_Input : Input {
+		float val;
+		Float_Input(UI* ui, Element* parent);
+		void on_message(const Message& m) override;
+		void set_val(float v);
+	};
+
+	struct Slider : Element {
+		Float_Input* input;
+		float minval, maxval;
+		int drag_off;
+		bool dragging;
+		Slider(UI* ui, Element* parent, float miv, float mav);
+		Rect layout(const Rect& avail) override;
+		void on_message(const Message& m) override;
+		void on_render() override;
+		void on_update() override;
+
+		int track_w();
+		Rect handle_rect();
+		Rect track_rect();
+		float val_from_coord(int coord);
+	};
+
 	struct Modal : Element {
 		Container* contents;
 		Toolbar* title_bar;