Support scrolling by dragging scrollbars

1 files changed, 14 insertions, 1 deletions

diff --git a/include/ui.h b/include/ui.h
index b95157e..baaa550 100644
--- a/include/ui.h
+++ b/include/ui.h
@@ -82,7 +82,7 @@ typedef enum uiMouseButtonState {
 /// Mouse button event.
 typedef struct uiMouseButtonEvent {
   uiMouseButton      button;
-  uiMouseButtonState state;
+  uiMouseButtonState button_state;
   uiPoint            mouse_position;
 } uiMouseButtonEvent;
 
@@ -98,11 +98,19 @@ typedef struct uiMouseScrollEvent {
   int     scroll_offset; /// Positive = down; negative = up.
 } uiMouseScrollEvent;
 
+/// Mouse move event.
+typedef struct uiMouseMoveEvent {
+  // TODO: A bitfield would be sufficient.
+  uiMouseButtonState button_state[uiMouseButtonMax];
+  uiPoint            mouse_position;
+} uiMouseMoveEvent;
+
 /// Input event type.
 typedef enum uiInputEventType {
   uiEventMouseButton,
   uiEventMouseClick,
   uiEventMouseScroll,
+  uiEventMouseMove,
 } uiInputEventType;
 
 /// Input event.
@@ -112,6 +120,7 @@ typedef struct uiInputEvent {
     uiMouseButtonEvent mouse_button;
     uiMouseClickEvent  mouse_click;
     uiMouseScrollEvent mouse_scroll;
+    uiMouseMoveEvent   mouse_move;
   };
 } uiInputEvent;
 
@@ -149,6 +158,9 @@ uiPtr uiMakeButtonPtr(uiButton*);
 uiPtr uiMakeFramePtr(uiFrame*);
 uiPtr uiMakeLabelPtr(uiLabel*);
 uiPtr uiMakeTablePtr(uiTable*);
+uiPtr uiMakeWidgetPtr(uiWidget*);
+uiPtr uiNullptr(void);
+bool  uiIsNullptr(uiPtr ptr);
 
 uiButton* uiGetButtonPtr(uiPtr ptr);
 uiFrame*  uiGetFramePtr(uiPtr ptr);
@@ -188,6 +200,7 @@ void        uiTableClear(uiTable*);
 void        uiTableAddRow(uiTable*, const char** row);
 void        uiTableSet(uiTable*, int row, int col, const char* text);
 const char* uiTableGet(const uiTable*, int row, int col);
+void        uiTableScroll(uiTable*, int row);
 
 // -----------------------------------------------------------------------------
 // Rendering.