+
+/* NEW GADGET STUFF -------------------------------------------------------- */
+
+
+/* gadget types */
+#define GD_TYPE_NORMAL_BUTTON (1 << 0)
+#define GD_TYPE_CHECK_BUTTON (1 << 1)
+#define GD_TYPE_RADIO_BUTTON (1 << 2)
+#define GD_TYPE_DRAWING_AREA (1 << 3)
+#define GD_TYPE_TEXTINPUT_ALPHANUMERIC (1 << 4)
+#define GD_TYPE_TEXTINPUT_NUMERIC (1 << 5)
+#define GD_TYPE_SCROLLBAR_VERTICAL (1 << 6)
+#define GD_TYPE_SCROLLBAR_HORIZONTAL (1 << 7)
+
+#define GD_TYPE_BUTTON (GD_TYPE_NORMAL_BUTTON | \
+ GD_TYPE_CHECK_BUTTON | \
+ GD_TYPE_RADIO_BUTTON)
+#define GD_TYPE_SCROLLBAR (GD_TYPE_SCROLLBAR_VERTICAL | \
+ GD_TYPE_SCROLLBAR_HORIZONTAL)
+#define GD_TYPE_TEXTINPUT (GD_TYPE_TEXTINPUT_ALPHANUMERIC | \
+ GD_TYPE_TEXTINPUT_NUMERIC)
+
+/* gadget events */
+#define GD_EVENT_PRESSED (1 << 0)
+#define GD_EVENT_RELEASED (1 << 1)
+#define GD_EVENT_MOVING (1 << 2)
+#define GD_EVENT_REPEATED (1 << 3)
+#define GD_EVENT_OFF_BORDERS (1 << 4)
+#define GD_EVENT_TEXT_RETURN (1 << 5)
+#define GD_EVENT_TEXT_LEAVING (1 << 6)
+
+/* gadget button states */
+#define GD_BUTTON_UNPRESSED 0
+#define GD_BUTTON_PRESSED 1
+
+/* gadget structure constants */
+#define MAX_GADGET_TEXTSIZE 1024
+#define MAX_INFO_TEXTSIZE 1024
+
+/* gadget creation tags */
+#define GDI_END 0
+#define GDI_CUSTOM_ID 1
+#define GDI_X 2
+#define GDI_Y 3
+#define GDI_WIDTH 4
+#define GDI_HEIGHT 5
+#define GDI_TYPE 6
+#define GDI_STATE 7
+#define GDI_CHECKED 8
+#define GDI_RADIO_NR 9
+#define GDI_NUMBER_VALUE 10
+#define GDI_NUMBER_MIN 11
+#define GDI_NUMBER_MAX 12
+#define GDI_TEXT_VALUE 13
+#define GDI_TEXT_SIZE 14
+#define GDI_DESIGN_UNPRESSED 15
+#define GDI_DESIGN_PRESSED 16
+#define GDI_ALT_DESIGN_UNPRESSED 17
+#define GDI_ALT_DESIGN_PRESSED 18
+#define GDI_DESIGN_BORDER 19
+#define GDI_DECORATION_DESIGN 20
+#define GDI_DECORATION_POSITION 22
+#define GDI_DECORATION_SIZE 21
+#define GDI_DECORATION_SHIFTING 23
+#define GDI_EVENT_MASK 24
+#define GDI_EVENT 25
+#define GDI_CALLBACK_INFO 26
+#define GDI_CALLBACK_ACTION 27
+#define GDI_AREA_SIZE 28
+#define GDI_ITEM_SIZE 29
+#define GDI_SCROLLBAR_ITEMS_MAX 30
+#define GDI_SCROLLBAR_ITEMS_VISIBLE 31
+#define GDI_SCROLLBAR_ITEM_POSITION 32
+#define GDI_INFO_TEXT 33
+
+typedef void (*gadget_function)(void *);
+
+struct GadgetDesign
+{
+ Pixmap pixmap; /* Pixmap with gadget surface */
+ int x, y; /* position of rectangle in Pixmap */
+};
+
+struct GadgetDecoration
+{
+ struct GadgetDesign design; /* decoration design structure */
+ int x, y; /* position of deco on the gadget */
+ int width, height; /* width and height of decoration */
+ int xshift, yshift; /* deco shifting when gadget pressed */
+};
+
+struct GadgetEvent
+{
+ unsigned long type; /* event type */
+ int button; /* button number for button events */
+ int x, y; /* gadget position at event time */
+ boolean off_borders; /* mouse pointer outside gadget? */
+ int item_x, item_y, item_position; /* new item position */
+};
+
+struct GadgetDrawingArea
+{
+ int area_xsize, area_ysize; /* size of drawing area (in items) */
+ int item_xsize, item_ysize; /* size of each item in drawing area */
+};
+
+struct GadgetTextInput
+{
+ char value[MAX_GADGET_TEXTSIZE]; /* text string in input field */
+ int number_value; /* integer value, if numeric */
+ int number_min; /* minimal allowed numeric value */
+ int number_max; /* maximal allowed numeric value */
+ int size; /* maximal size of input text */
+ int cursor_position; /* actual cursor position */
+};
+
+struct GadgetScrollbar
+{
+ int items_max; /* number of items to access */
+ int items_visible; /* number of visible items */
+ int item_position; /* actual item position */
+ int size_max; /* this is either width or height */
+ int size; /* scrollbar size on screen */
+ int position; /* scrollbar position on screen */
+ int position_max; /* bottom/right scrollbar position */
+ int drag_position; /* drag position on scrollbar */
+};
+
+struct GadgetInfo
+{
+ int id; /* internal gadget identifier */
+ int custom_id; /* custom gadget identifier */
+ char info_text[MAX_INFO_TEXTSIZE]; /* short popup info text */
+ int x, y; /* gadget position */
+ int width, height; /* gadget size */
+ unsigned long type; /* type (button, text input, ...) */
+ unsigned long state; /* state (pressed, released, ...) */
+ boolean checked; /* check/radio button state */
+ int radio_nr; /* number of radio button series */
+ boolean mapped; /* gadget is active */
+ struct GadgetDesign design[2]; /* 0: normal; 1: pressed */
+ struct GadgetDesign alt_design[2]; /* alternative design */
+ struct GadgetDecoration deco; /* decoration on top of gadget */
+ int design_border; /* border size of gadget decoration */
+ unsigned long event_mask; /* possible events for this gadget */
+ struct GadgetEvent event; /* actual gadget event */
+ gadget_function callback_info; /* function for pop-up info text */
+ gadget_function callback_action; /* function for gadget action */
+ struct GadgetDrawingArea drawing; /* fields for drawing area gadget */
+ struct GadgetTextInput text; /* fields for text input gadget */
+ struct GadgetScrollbar scrollbar; /* fields for scrollbar gadget */
+ struct GadgetInfo *next; /* next list entry */
+};
+
+struct GadgetInfo *CreateGadget(int, ...);
+void FreeGadget(struct GadgetInfo *);
+
+void ClickOnGadget(struct GadgetInfo *);
+void AdjustScrollbar(struct GadgetInfo *, int, int);
+void ModifyTextInputTextValue(struct GadgetInfo *, char *);
+void ModifyTextInputNumberValue(struct GadgetInfo *, int);
+
+void MapGadget(struct GadgetInfo *);
+void UnmapGadget(struct GadgetInfo *);
+
+void HandleGadgets(int, int, int);
+void HandleGadgetsKeyInput(KeySym);
+