DrawMiniGraphicExt(drawto,gc,
DX+ED_BUTTON_ELEM_XPOS+3+shift +
(elem_pos % MAX_ELEM_X)*ED_BUTTON_ELEM_XSIZE,
- DY+ED_BUTTON_ELEM_YPOS+3-shift +
+ DY+ED_BUTTON_ELEM_YPOS+3+shift +
(elem_pos / MAX_ELEM_X)*ED_BUTTON_ELEM_YSIZE,
graphic);
}
static struct GadgetInfo *gadget_list_first_entry = NULL;
static struct GadgetInfo *gadget_list_last_entry = NULL;
+static int next_free_gadget_id = 1;
+static boolean gadget_id_wrapped = FALSE;
+
+static struct GadgetInfo *getGadgetInfoFromGadgetID(int id)
+{
+ struct GadgetInfo *gi = gadget_list_first_entry;
+
+ while (gi && gi->id != id)
+ gi = gi->next;
+
+ return gi;
+}
+
+static int getNewGadgetID()
+{
+ int id = next_free_gadget_id++;
+
+ if (next_free_gadget_id <= 0) /* counter overrun */
+ {
+ gadget_id_wrapped = TRUE; /* now we must check each ID */
+ next_free_gadget_id = 0;
+ }
+
+ if (gadget_id_wrapped)
+ {
+ next_free_gadget_id++;
+ while (getGadgetInfoFromGadgetID(next_free_gadget_id) != NULL)
+ next_free_gadget_id++;
+ }
+
+ if (next_free_gadget_id <= 0) /* cannot get new gadget id */
+ Error(ERR_EXIT, "too much gadgets -- this should not happen");
+
+ return id;
+}
static struct GadgetInfo *getGadgetInfoFromMousePosition(int mx, int my)
{
while (gi)
{
- if (mx >= gi->x && mx < gi->x + gi->width &&
+ if (gi->mapped &&
+ mx >= gi->x && mx < gi->x + gi->width &&
my >= gi->y && my < gi->y + gi->height)
break;
return gi;
}
+static void default_callback_function(void *ptr)
+{
+ return;
+}
+
struct GadgetInfo *CreateGadget(int first_tag, ...)
{
struct GadgetInfo *new_gadget = checked_malloc(sizeof(struct GadgetInfo));
va_start(ap, first_tag);
/* always start with reliable default values */
- memset(new_gadget, 0, sizeof(struct GadgetInfo));
+ memset(new_gadget, 0, sizeof(struct GadgetInfo)); /* zero all fields */
+ new_gadget->id = getNewGadgetID(); /* new gadget id */
+ new_gadget->callback = default_callback_function; /* dummy function */
while (tag != GDI_END)
{
- printf("tag: %d\n", tag);
-
-
switch(tag)
{
+ case GDI_CUSTOM_ID:
+ new_gadget->custom_id = va_arg(ap, int);
+ break;
+
case GDI_X:
new_gadget->x = va_arg(ap, int);
break;
+
case GDI_Y:
new_gadget->y = va_arg(ap, int);
break;
+
case GDI_WIDTH:
new_gadget->width = va_arg(ap, int);
break;
+
case GDI_HEIGHT:
new_gadget->height = va_arg(ap, int);
break;
+
case GDI_TYPE:
new_gadget->type = va_arg(ap, unsigned long);
break;
+
case GDI_STATE:
new_gadget->state = va_arg(ap, unsigned long);
break;
+
case GDI_ALT_STATE:
new_gadget->state = va_arg(ap, boolean);
break;
+
case GDI_NUMBER_VALUE:
new_gadget->number_value = va_arg(ap, long);
break;
+
case GDI_TEXT_VALUE:
strcpy(new_gadget->text_value, va_arg(ap, char *));
break;
+
case GDI_DESIGN_UNPRESSED:
new_gadget->design[GD_BUTTON_UNPRESSED].pixmap = va_arg(ap, Pixmap);
new_gadget->design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
new_gadget->design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
break;
+
case GDI_DESIGN_PRESSED:
new_gadget->design[GD_BUTTON_PRESSED].pixmap = va_arg(ap, Pixmap);
new_gadget->design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
new_gadget->design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
break;
+
case GDI_ALT_DESIGN_UNPRESSED:
new_gadget->alt_design[GD_BUTTON_UNPRESSED].pixmap= va_arg(ap, Pixmap);
new_gadget->alt_design[GD_BUTTON_UNPRESSED].x = va_arg(ap, int);
new_gadget->alt_design[GD_BUTTON_UNPRESSED].y = va_arg(ap, int);
break;
+
case GDI_ALT_DESIGN_PRESSED:
new_gadget->alt_design[GD_BUTTON_PRESSED].pixmap = va_arg(ap, Pixmap);
new_gadget->alt_design[GD_BUTTON_PRESSED].x = va_arg(ap, int);
new_gadget->alt_design[GD_BUTTON_PRESSED].y = va_arg(ap, int);
break;
+
+ case GDI_EVENT_MASK:
+ new_gadget->event_mask = va_arg(ap, unsigned long);
+ break;
+
+ case GDI_AREA_SIZE:
+ new_gadget->drawing.area_xsize = va_arg(ap, int);
+ new_gadget->drawing.area_ysize = va_arg(ap, int);
+
+ /* determine dependent values for drawing area gadget, if needed */
+ if (new_gadget->width == 0 &&
+ new_gadget->height == 0 &&
+ new_gadget->drawing.item_xsize !=0 &&
+ new_gadget->drawing.item_ysize !=0)
+ {
+ new_gadget->width =
+ new_gadget->drawing.area_xsize * new_gadget->drawing.item_xsize;
+ new_gadget->height =
+ new_gadget->drawing.area_ysize * new_gadget->drawing.item_ysize;
+ }
+ else if (new_gadget->drawing.item_xsize == 0 &&
+ new_gadget->drawing.item_ysize == 0 &&
+ new_gadget->width != 0 &&
+ new_gadget->height != 0)
+ {
+ new_gadget->drawing.item_xsize =
+ new_gadget->width / new_gadget->drawing.area_xsize;
+ new_gadget->drawing.item_ysize =
+ new_gadget->height / new_gadget->drawing.area_ysize;
+ }
+ break;
+
+ case GDI_ITEM_SIZE:
+ new_gadget->drawing.item_xsize = va_arg(ap, int);
+ new_gadget->drawing.item_ysize = va_arg(ap, int);
+
+ /* determine dependent values for drawing area gadget, if needed */
+ if (new_gadget->width == 0 &&
+ new_gadget->height == 0 &&
+ new_gadget->drawing.area_xsize !=0 &&
+ new_gadget->drawing.area_ysize !=0)
+ {
+ new_gadget->width =
+ new_gadget->drawing.area_xsize * new_gadget->drawing.item_xsize;
+ new_gadget->height =
+ new_gadget->drawing.area_ysize * new_gadget->drawing.item_ysize;
+ }
+ else if (new_gadget->drawing.area_xsize == 0 &&
+ new_gadget->drawing.area_ysize == 0 &&
+ new_gadget->width != 0 &&
+ new_gadget->height != 0)
+ {
+ new_gadget->drawing.area_xsize =
+ new_gadget->width / new_gadget->drawing.item_xsize;
+ new_gadget->drawing.area_ysize =
+ new_gadget->height / new_gadget->drawing.item_ysize;
+ }
+ break;
+
case GDI_CALLBACK:
new_gadget->callback = va_arg(ap, gadget_callback_function);
break;
va_end(ap);
/* check if gadget complete */
- if (!new_gadget->design[GD_BUTTON_UNPRESSED].pixmap ||
- !new_gadget->design[GD_BUTTON_PRESSED].pixmap)
+ if (new_gadget->type != GD_TYPE_DRAWING_AREA &&
+ (!new_gadget->design[GD_BUTTON_UNPRESSED].pixmap ||
+ !new_gadget->design[GD_BUTTON_PRESSED].pixmap))
Error(ERR_EXIT, "gadget incomplete (missing Pixmap)");
/* insert new gadget into gloabl gadget list */
&gi->alt_design[state] :
&gi->design[state]);
+ if (gi->type != GD_TYPE_NORMAL_BUTTON)
+ return;
+
XCopyArea(display, gd->pixmap, drawto, gc,
gd->x, gd->y, gi->width, gi->height, gi->x, gi->y);
if (direct)
XCopyArea(display, gd->pixmap, window, gc,
gd->x, gd->y, gi->width, gi->height, gi->x, gi->y);
+ else
+ redraw_mask |= REDRAW_ALL;
}
void MapGadget(struct GadgetInfo *gi)
{
+ if (gi == NULL)
+ return;
+
gi->mapped = TRUE;
- DrawGadget(gi, (gi->state == GD_BUTTON_PRESSED), TRUE);
+ DrawGadget(gi, (gi->state == GD_BUTTON_PRESSED), FALSE);
}
void UnmapGadget(struct GadgetInfo *gi)
{
+ if (gi == NULL)
+ return;
+
gi->mapped = FALSE;
}
void HandleGadgets(int mx, int my, int button)
{
- static struct GadgetInfo *choice = NULL;
- static boolean pressed = FALSE;
- struct GadgetInfo *new_choice;
+ static struct GadgetInfo *gi = NULL;
+ static unsigned long pressed_delay = 0;
+
+ struct GadgetInfo *new_gi;
+ boolean gadget_pressed;
+ boolean gadget_pressed_repeated;
+ boolean gadget_moving;
+ boolean gadget_moving_off_borders;
+ boolean gadget_released;
+ boolean gadget_released_off_borders;
if (gadget_list_first_entry == NULL)
return;
- new_choice = getGadgetInfoFromMousePosition(mx,my);
-
- if (button)
+ new_gi = getGadgetInfoFromMousePosition(mx,my);
+
+ gadget_pressed =
+ (button != 0 && gi == NULL && new_gi != NULL && !motion_status);
+ gadget_pressed_repeated =
+ (button != 0 && gi != NULL && new_gi == gi);
+ gadget_moving =
+ (button != 0 && gi != NULL && new_gi == gi && motion_status);
+ gadget_moving_off_borders =
+ (button != 0 && gi != NULL && new_gi != gi && motion_status);
+ gadget_released =
+ (button == 0 && gi != NULL && new_gi == gi);
+ gadget_released_off_borders =
+ (button == 0 && gi != NULL && new_gi != gi);
+
+ if (gadget_pressed)
+ gi = new_gi;
+
+ if (gi)
{
- if (!motion_status) /* mouse button just pressed */
+ gi->event.x = mx - gi->x;
+ gi->event.y = my - gi->y;
+
+ if (gi->type == GD_TYPE_DRAWING_AREA)
{
- if (new_choice != NULL)
- {
- choice = new_choice;
- choice->state = GD_BUTTON_PRESSED;
- choice->event = GD_EVENT_PRESSED;
- DrawGadget(choice, TRUE, TRUE);
- choice->callback(choice);
- pressed = TRUE;
- }
+ gi->event.x /= gi->drawing.item_xsize;
+ gi->event.y /= gi->drawing.item_ysize;
}
- else /* mouse movement with pressed mouse button */
- {
- if ((new_choice == NULL || new_choice != choice) &&
- choice != NULL && pressed)
- {
- choice->state = GD_BUTTON_UNPRESSED;
- DrawGadget(choice, FALSE, TRUE);
- pressed = FALSE;
- }
- else if (new_choice != NULL && new_choice == choice)
- {
- if (!pressed)
- DrawGadget(choice, TRUE, TRUE);
- choice->state = GD_BUTTON_PRESSED;
+ }
- /*
- choice->callback(choice);
- */
+ if (gadget_pressed)
+ {
+ DrawGadget(gi, TRUE, TRUE);
- pressed = TRUE;
- }
- }
+ gi->state = GD_BUTTON_PRESSED;
+ gi->event.type = GD_EVENT_PRESSED;
+ gi->event.button = button;
+ gi->event.off_borders = FALSE;
+
+ /* initialize delay counter */
+ pressed_delay = 0;
+ DelayReached(&pressed_delay, GADGET_FRAME_DELAY);
+
+ if (gi->event_mask & GD_EVENT_PRESSED)
+ gi->callback(gi);
}
- else /* mouse button just released */
+
+ if (gadget_pressed_repeated)
{
- if (new_choice != NULL && new_choice == choice && pressed)
- {
- choice->state = GD_BUTTON_UNPRESSED;
- choice->event = GD_EVENT_RELEASED;
- DrawGadget(choice, FALSE, TRUE);
- choice->callback(choice);
- choice = NULL;
- pressed = FALSE;
- }
- else
- {
- choice = NULL;
- pressed = FALSE;
- }
+ if (gi->event_mask & GD_EVENT_REPEATED &&
+ DelayReached(&pressed_delay, GADGET_FRAME_DELAY))
+ gi->callback(gi);
+ }
+
+ if (gadget_moving)
+ {
+ if (gi->state == GD_BUTTON_UNPRESSED)
+ DrawGadget(gi, TRUE, TRUE);
+
+ gi->state = GD_BUTTON_PRESSED;
+ gi->event.type = GD_EVENT_MOVING;
+ gi->event.off_borders = FALSE;
+ if (gi->event_mask & GD_EVENT_MOVING)
+ gi->callback(gi);
+ }
+
+ if (gadget_moving_off_borders)
+ {
+ if (gi->state == GD_BUTTON_PRESSED)
+ DrawGadget(gi, FALSE, TRUE);
+
+ gi->state = GD_BUTTON_UNPRESSED;
+ gi->event.type = GD_EVENT_MOVING;
+ gi->event.off_borders = TRUE;
+
+ if (gi->event_mask & GD_EVENT_MOVING &&
+ gi->event_mask & GD_EVENT_OFF_BORDERS)
+ gi->callback(gi);
+ }
+
+ if (gadget_released)
+ {
+ DrawGadget(gi, FALSE, TRUE);
+
+ gi->state = GD_BUTTON_UNPRESSED;
+ gi->event.type = GD_EVENT_RELEASED;
+
+ if (gi->event_mask & GD_EVENT_RELEASED)
+ gi->callback(gi);
+ }
+
+ if (gadget_released_off_borders)
+ {
+ gi->event.type = GD_EVENT_RELEASED;
+
+ if (gi->event_mask & GD_EVENT_RELEASED &&
+ gi->event_mask & GD_EVENT_OFF_BORDERS)
+ gi->callback(gi);
}
+
+ if (button == 0)
+ gi = NULL;
}