keyboard support in raleigh, word wrap and more in entry widget

7 files changed, 43 insertions, 9 deletions

diff --git a/src/user/include/cxx/raleigh/w/button.h b/src/user/include/cxx/raleigh/w/button.h
index 1847cf1..03e17ab 100644
--- a/src/user/include/cxx/raleigh/w/button.h
+++ b/src/user/include/cxx/raleigh/w/button.h
@@ -11,8 +11,11 @@ namespace raleigh {
 
     void notify_window_change() override;
     void paint(_pixel_t *pixbuf, uint32_t pitch) override;
-    bool try_handle_click(coord window_coords, enum mouse_packet::mouse_button click_type, bool up) override;
+    void handle_click(coord window_coords, enum mouse_packet::mouse_button click_type, bool up) override;
     void notify_has_opaque_parent(widget *parent) override;
+    void handle_key(struct key_packet kp) override;
+    void on_focus() override;
+    void on_unfocus() override;
   private:
     widget &inner;
     void (*on_click)(button &);
diff --git a/src/user/include/cxx/raleigh/w/entry.h b/src/user/include/cxx/raleigh/w/entry.h
index 7ea2973..fcae122 100644
--- a/src/user/include/cxx/raleigh/w/entry.h
+++ b/src/user/include/cxx/raleigh/w/entry.h
@@ -12,10 +12,13 @@ namespace raleigh {
           const char *font="fixed-10", _pixel_t bg=RGB(ff, ff, ff),
           _pixel_t fg=RGB(00, 00, 00), _pixel_t border_color=RGB(00, 00, 00));
 
-    void notify_window_change();
-    void paint(_pixel_t *pixbuf, uint32_t pitch);
-    bool try_handle_click(coord window_coords, enum mouse_packet::mouse_button click_type, bool up);
-    void notify_has_opaque_parent(widget *parent);
+    void notify_window_change() override;
+    void paint(_pixel_t *pixbuf, uint32_t pitch) override;
+    void handle_click(coord window_coords, enum mouse_packet::mouse_button click_type, bool up) override;
+    void notify_has_opaque_parent(widget *parent) override;
+    void handle_key(struct key_packet kp) override;
+    void on_focus() override;
+    void on_unfocus() override;
   private:
     uint32_t rows;
     uint32_t cols;
@@ -40,12 +43,26 @@ namespace raleigh {
     uint32_t end_d;
 
     bool first_paint;
+    bool has_focus;
+    bool had_focus_last_paint;
     bool text_changed_since_last_paint;
     uint32_t cur_y_last_paint;
     uint32_t cur_x_last_paint;
     uint32_t cur_d_last_paint;
 
+    //uses cur_x, not cur_d; sets both
+    //will not modify cur_y
+    void ensure_cursor_in_line();
+
     void paint_text(_pixel_t *pixbuf, uint32_t pitch);
+    //sets line_indices[from_y + 1 .. end_y + 1], end_y, end_x and end_d
+    void get_indices(uint32_t from_y, uint32_t from_x, uint32_t from_d);
+
+    //these four return true on success, and do not send a paint request to the window
+    bool cursor_left();
+    bool cursor_right();
+    bool cursor_up();
+    bool cursor_down();
   };
 }
 
diff --git a/src/user/include/cxx/raleigh/w/label.h b/src/user/include/cxx/raleigh/w/label.h
index d133841..4b1dae2 100644
--- a/src/user/include/cxx/raleigh/w/label.h
+++ b/src/user/include/cxx/raleigh/w/label.h
@@ -13,8 +13,11 @@ namespace raleigh {
 
     void notify_window_change() override;
     void paint(_pixel_t *pixbuf, uint32_t pitch) override;
-    bool try_handle_click(coord window_coords, enum mouse_packet::mouse_button click_type, bool up) override __attribute__ ((const));
+    void handle_click(coord window_coords, enum mouse_packet::mouse_button click_type, bool up) override;
     void notify_has_opaque_parent(widget *parent) override;
+    void handle_key(struct key_packet kp) override;
+    void on_focus() override;
+    void on_unfocus() override;
   private:
     const char *const value;
     const struct font_info *const fi;
diff --git a/src/user/include/cxx/raleigh/w/padding.h b/src/user/include/cxx/raleigh/w/padding.h
index 216b984..792e204 100644
--- a/src/user/include/cxx/raleigh/w/padding.h
+++ b/src/user/include/cxx/raleigh/w/padding.h
@@ -10,8 +10,11 @@ namespace raleigh {
 
     void notify_window_change() override;
     void paint(_pixel_t *pixbuf, uint32_t pitch) override;
-    bool try_handle_click(coord window_coords, enum mouse_packet::mouse_button click_type, bool up) override;
+    void handle_click(coord window_coords, enum mouse_packet::mouse_button click_type, bool up) override;
     void notify_has_opaque_parent(widget *parent) override;
+    void handle_key(struct key_packet kp) override;
+    void on_focus() override;
+    void on_unfocus() override;
   private:
     widget &inner;
     uint32_t pad_by;
diff --git a/src/user/include/cxx/raleigh/w/vbox.h b/src/user/include/cxx/raleigh/w/vbox.h
index aead128..02bffd3 100644
--- a/src/user/include/cxx/raleigh/w/vbox.h
+++ b/src/user/include/cxx/raleigh/w/vbox.h
@@ -12,8 +12,11 @@ namespace raleigh {
 
     void notify_window_change() override;
     void paint(_pixel_t *pixbuf, uint32_t pitch) override;
-    bool try_handle_click(coord window_coords, enum mouse_packet::mouse_button click_type, bool up) override;
+    void handle_click(coord window_coords, enum mouse_packet::mouse_button click_type, bool up) override;
     void notify_has_opaque_parent(widget *parent) override;
+    void handle_key(struct key_packet kp) override;
+    void on_focus() override;
+    void on_unfocus() override;
   private:
     dllist<widget &> widgets;
   };
diff --git a/src/user/include/cxx/raleigh/widget.h b/src/user/include/cxx/raleigh/widget.h
index de6c5a4..54b9287 100644
--- a/src/user/include/cxx/raleigh/widget.h
+++ b/src/user/include/cxx/raleigh/widget.h
@@ -28,8 +28,11 @@ namespace raleigh {
     //called by window class (or parent widget)
     virtual void notify_window_change() = 0;
     virtual void paint(_pixel_t *pixbuf, uint32_t pitch) = 0;
-    virtual bool try_handle_click(coord window_coords, enum mouse_packet::mouse_button click_type, bool up) = 0;
+    virtual void handle_click(coord window_coords, enum mouse_packet::mouse_button click_type, bool up) = 0;
     virtual void notify_has_opaque_parent(widget *parent) = 0;
+    virtual void handle_key(struct key_packet kp) = 0;
+    virtual void on_focus() = 0;
+    virtual void on_unfocus() = 0;
   };
 }
 
diff --git a/src/user/include/cxx/raleigh/window.h b/src/user/include/cxx/raleigh/window.h
index f82f9a9..21ae511 100644
--- a/src/user/include/cxx/raleigh/window.h
+++ b/src/user/include/cxx/raleigh/window.h
@@ -20,11 +20,13 @@ namespace raleigh {
     enum try_actions_return_t {NONE, GOOD, DELETE};
     try_actions_return_t try_actions();
     void show();
+    void focus(widget &w);
   private:
     _window_handle_t handle;
     _pixel_t *pixbuf;
     coord size;
     widget &root;
+    widget *focussed;
     _pixel_t bg_color;
     bool needs_repaint;
     void paint_full();