gui: add terminal emulator
Emulates enough of a VT-100 to run busybox vi.
Change-Id: I99c829c6c9de2246194ecb8b8b3cdf4ac34a0606
diff --git a/gui/objects.hpp b/gui/objects.hpp
index 5e09607..15ad1e6 100644
--- a/gui/objects.hpp
+++ b/gui/objects.hpp
@@ -81,6 +81,7 @@
virtual int SetPlacement(Placement placement) { mPlacement = placement; return 0; }
// SetPageFocus - Notify when a page gains or loses focus
+ // TODO: This should be named NotifyPageFocus for consistency
virtual void SetPageFocus(int inFocus __unused) { return; }
protected:
@@ -767,6 +768,43 @@
int RenderConsole(void);
};
+class TerminalEngine;
+class GUITerminal : public GUIScrollList, public InputObject
+{
+public:
+ GUITerminal(xml_node<>* node);
+
+public:
+ // Update - Update any UI component animations (called <= 30 FPS)
+ // Return 0 if nothing to update, 1 on success and contiue, >1 if full render required, and <0 on error
+ virtual int Update(void);
+
+ // NotifyTouch - Notify of a touch event
+ // Return 0 on success, >0 to ignore remainder of touch, and <0 on error (Return error to allow other handlers)
+ virtual int NotifyTouch(TOUCH_STATE state, int x, int y);
+
+ // NotifyKey - Notify of a key press
+ // Return 0 on success (and consume key), >0 to pass key to next handler, and <0 on error
+ virtual int NotifyKey(int key, bool down);
+
+ // character input
+ virtual int NotifyCharInput(int ch);
+
+ // SetPageFocus - Notify when a page gains or loses focus
+ virtual void SetPageFocus(int inFocus);
+
+ // ScrollList interface
+ virtual size_t GetItemCount();
+ virtual void RenderItem(size_t itemindex, int yPos, bool selected);
+ virtual void NotifySelect(size_t item_selected);
+protected:
+ void InitAndResize();
+
+ TerminalEngine* engine; // non-visual parts of the terminal (text buffer etc.), not owned
+ int updateCounter; // to track if anything changed in the back-end
+ bool lastCondition; // to track if the condition became true and we might need to resize the terminal engine
+};
+
// GUIAnimation - Used for animations
class GUIAnimation : public GUIObject, public RenderObject
{