/***********************************************************
* Artsoft Retro-Game Library *
*----------------------------------------------------------*
-* (c) 1994-2002 Artsoft Entertainment *
+* (c) 1994-2006 Artsoft Entertainment *
* Holger Schemel *
* Detmolder Strasse 189 *
* 33604 Bielefeld *
static int next_free_gadget_id = 1;
static boolean gadget_id_wrapped = FALSE;
+static void (*PlayGadgetSoundActivating)(void) = NULL;
+static void (*PlayGadgetSoundSelecting)(void) = NULL;
+
+
+void InitGadgetsSoundCallback(void (*activating_function)(void),
+ void (*selecting_function)(void))
+{
+ PlayGadgetSoundActivating = activating_function;
+ PlayGadgetSoundSelecting = selecting_function;
+}
+
static struct GadgetInfo *getGadgetInfoFromGadgetID(int id)
{
struct GadgetInfo *gi = gadget_list_first_entry;
return id;
}
-static struct GadgetInfo *getGadgetInfoFromMousePosition(int mx, int my)
+static struct GadgetInfo *getGadgetInfoFromMousePosition(int mx, int my,
+ int button)
{
struct GadgetInfo *gi;
+ /* first check for scrollbars in case of mouse scroll wheel button events */
+ if (IS_WHEEL_BUTTON(button))
+ {
+ /* real horizontal wheel or vertical wheel with modifier key pressed */
+ boolean check_horizontal = (IS_WHEEL_BUTTON_HORIZONTAL(button) ||
+ GetKeyModState() & KMOD_Shift);
+
+ /* check for the first active scrollbar with matching mouse wheel area */
+ for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
+ {
+ if (gi->mapped && gi->active &&
+ ((gi->type & GD_TYPE_SCROLLBAR_HORIZONTAL && check_horizontal) ||
+ (gi->type & GD_TYPE_SCROLLBAR_VERTICAL && !check_horizontal)) &&
+ mx >= gi->wheelarea.x && mx < gi->wheelarea.x + gi->wheelarea.width &&
+ my >= gi->wheelarea.y && my < gi->wheelarea.y + gi->wheelarea.height)
+ return gi;
+ }
+
+ /* no active scrollbar found -- ignore this scroll wheel button event */
+ return NULL;
+ }
+
/* open selectboxes may overlap other active gadgets, so check them first */
for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
{
gi->height - 2 * border_y);
/* gadget text value */
+#if 1
+ DrawTextBuffer(gi->x + border_x, gi->y + border_y, gi->textarea.value,
+ font_nr, gi->textarea.xsize, -1, gi->textarea.ysize,
+ BLIT_ON_BACKGROUND, FALSE, FALSE, FALSE);
+#else
DrawTextToTextArea(gi->x + border_x, gi->y + border_y,
gi->textarea.value, font_nr, gi->textarea.xsize,
gi->textarea.xsize, gi->textarea.ysize,
BLIT_ON_BACKGROUND);
+#endif
cursor_letter = gi->textarea.value[gi->textarea.cursor_position];
cursor_string[0] = (cursor_letter != '\0' ? cursor_letter : ' ');
case GDI_INFO_TEXT:
{
- int max_textsize = MAX_INFO_TEXTSIZE - 1;
+ int max_textsize = MAX_INFO_TEXTSIZE;
char *text = va_arg(ap, char *);
if (text != NULL)
break;
case GDI_ACTIVE:
- /* take care here: "boolean" is typedef'ed as "unsigned char",
- which gets promoted to "int" */
gi->active = (boolean)va_arg(ap, int);
break;
case GDI_DIRECT_DRAW:
- /* take care here: "boolean" is typedef'ed as "unsigned char",
- which gets promoted to "int" */
gi->direct_draw = (boolean)va_arg(ap, int);
break;
case GDI_CHECKED:
- /* take care here: "boolean" is typedef'ed as "unsigned char",
- which gets promoted to "int" */
gi->checked = (boolean)va_arg(ap, int);
break;
int max_textsize = MAX_GADGET_TEXTSIZE;
if (gi->textinput.size)
- max_textsize = MIN(gi->textinput.size, MAX_GADGET_TEXTSIZE - 1);
+ max_textsize = MIN(gi->textinput.size, MAX_GADGET_TEXTSIZE);
strncpy(gi->textinput.value, va_arg(ap, char *), max_textsize);
strcpy(gi->textinput.last_value, gi->textinput.value);
case GDI_TEXT_SIZE:
{
int tag_value = va_arg(ap, int);
- int max_textsize = MIN(tag_value, MAX_GADGET_TEXTSIZE - 1);
+ int max_textsize = MIN(tag_value, MAX_GADGET_TEXTSIZE);
gi->textinput.size = max_textsize;
gi->textinput.value[max_textsize] = '\0';
gi->scrollbar.item_position = va_arg(ap, int);
break;
+ case GDI_WHEEL_AREA_X:
+ gi->wheelarea.x = va_arg(ap, int);
+ break;
+
+ case GDI_WHEEL_AREA_Y:
+ gi->wheelarea.y = va_arg(ap, int);
+ break;
+
+ case GDI_WHEEL_AREA_WIDTH:
+ gi->wheelarea.width = va_arg(ap, int);
+ break;
+
+ case GDI_WHEEL_AREA_HEIGHT:
+ gi->wheelarea.height = va_arg(ap, int);
+ break;
+
case GDI_CALLBACK_INFO:
gi->callback_info = va_arg(ap, gadget_function);
break;
boolean HandleGadgets(int mx, int my, int button)
{
static unsigned long pressed_delay = 0;
+ static unsigned long pressed_delay_value = GADGET_FRAME_DELAY;
static int last_button = 0;
static int last_mx = 0, last_my = 0;
static int pressed_mx = 0, pressed_my = 0;
static boolean keep_selectbox_open = FALSE;
+ static boolean gadget_stopped = FALSE;
int scrollbar_mouse_pos = 0;
struct GadgetInfo *new_gi, *gi;
boolean press_event;
boolean gadget_pressed_repeated;
boolean gadget_pressed_off_borders;
boolean gadget_pressed_inside_select_line;
+ boolean gadget_pressed_delay_reached;
boolean gadget_moving;
boolean gadget_moving_inside;
boolean gadget_moving_off_borders;
+ boolean gadget_draggable;
+ boolean gadget_dragging;
boolean gadget_released;
boolean gadget_released_inside;
boolean gadget_released_inside_select_line;
}
/* check which gadget is under the mouse pointer */
- new_gi = getGadgetInfoFromMousePosition(mx, my);
+ new_gi = getGadgetInfoFromMousePosition(mx, my, button);
/* check if button state has changed since last invocation */
- press_event = (button != 0 && last_button == 0);
+ press_event = (button != 0 && last_button == 0);
release_event = (button == 0 && last_button != 0);
last_button = button;
(gadget_pressed_inside_select_line && !mouse_inside_select_area)))
{
struct GadgetInfo *gi = last_gi;
- boolean gadget_changed = (gi->event_mask & GD_EVENT_TEXT_LEAVING);
+ boolean gadget_changed = ((gi->event_mask & GD_EVENT_TEXT_LEAVING) != 0);
/* check if text gadget has changed its value */
if (gi->type & GD_TYPE_TEXT_INPUT)
{
CheckRangeOfNumericInputGadget(gi);
- if (strcmp(gi->textinput.value, gi->textinput.last_value) != 0)
+ if (!strEqual(gi->textinput.last_value, gi->textinput.value))
strcpy(gi->textinput.last_value, gi->textinput.value);
else
gadget_changed = FALSE;
gadget_pressed_repeated =
(button != 0 && last_gi != NULL && new_gi == last_gi);
+ gadget_pressed_delay_reached =
+ DelayReached(&pressed_delay, pressed_delay_value);
+
gadget_released = (release_event && last_gi != NULL);
gadget_released_inside = (gadget_released && new_gi == last_gi);
gadget_released_off_borders = (gadget_released && new_gi != last_gi);
if (button == 0 && !release_event)
gi = new_gi;
+ /* if new gadget or if no gadget was pressed, release stopped processing */
+ if (gadget_pressed || new_gi == NULL)
+ gadget_stopped = FALSE;
+
+ /* if gadget was stopped while being handled, stop gadget processing here */
+ if (gadget_stopped)
+ return TRUE;
+
if (gi != NULL)
{
int last_x = gi->event.x;
last_info_gi = new_gi;
}
- if (gadget_pressed)
- {
- if (gi->type == GD_TYPE_CHECK_BUTTON)
- {
- gi->checked = !gi->checked;
- }
- else if (gi->type == GD_TYPE_RADIO_BUTTON)
- {
- struct GadgetInfo *rgi = gadget_list_first_entry;
+ gadget_draggable = (gi && gi->type & GD_TYPE_SCROLLBAR);
- while (rgi)
- {
- if (rgi->mapped &&
- rgi->type == GD_TYPE_RADIO_BUTTON &&
- rgi->radio_nr == gi->radio_nr &&
- rgi != gi)
- {
- rgi->checked = FALSE;
- DrawGadget(rgi, DG_UNPRESSED, rgi->direct_draw);
- }
+ /* reset drag position for newly pressed scrollbar to "not dragging" */
+ if (gadget_pressed && gadget_draggable)
+ gi->scrollbar.drag_position = -1;
- rgi = rgi->next;
- }
+ gadget_dragging = (gadget_draggable && gi->scrollbar.drag_position != -1);
- gi->checked = TRUE;
+ /* clicking next to a scrollbar to move it is not considered "moving" */
+ if (gadget_draggable && !gadget_dragging)
+ gadget_moving = FALSE;
+
+ /* when leaving scrollbar area when jump-scrolling, stop gadget processing */
+ if (gadget_draggable && !gadget_dragging && gadget_moving_off_borders)
+ gadget_stopped = TRUE;
+
+ if ((gadget_pressed) ||
+ (gadget_pressed_repeated && gadget_pressed_delay_reached))
+ {
+ if (gadget_pressed) /* gadget pressed the first time */
+ {
+ /* initialize delay counter */
+ DelayReached(&pressed_delay, 0);
+
+ /* start gadget delay with longer delay after first click on gadget */
+ pressed_delay_value = GADGET_FRAME_DELAY_FIRST;
}
- else if (gi->type & GD_TYPE_SCROLLBAR)
+ else /* gadget hold pressed for some time */
{
- int mpos, gpos;
+ /* after first repeated gadget click, continue with shorter delay value */
+ pressed_delay_value = GADGET_FRAME_DELAY;
+ }
- if (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL)
- {
- mpos = mx;
- gpos = gi->x;
- }
- else
- {
- mpos = my;
- gpos = gi->y;
- }
+ if (gi->type & GD_TYPE_SCROLLBAR && !gadget_dragging)
+ {
+ int mpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx : my);
+ int gpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? gi->x : gi->y);
+ int slider_start = gpos + gi->scrollbar.position;
+ int slider_end = gpos + gi->scrollbar.position + gi->scrollbar.size - 1;
+ boolean inside_slider = (mpos >= slider_start && mpos <= slider_end);
- if (mpos >= gpos + gi->scrollbar.position &&
- mpos < gpos + gi->scrollbar.position + gi->scrollbar.size)
- {
- /* drag scrollbar */
- gi->scrollbar.drag_position =
- scrollbar_mouse_pos - gi->scrollbar.position;
- }
- else
+ if (IS_WHEEL_BUTTON(button) || !inside_slider)
{
/* click scrollbar one scrollbar length up/left or down/right */
struct GadgetScrollbar *gs = &gi->scrollbar;
int old_item_position = gs->item_position;
+ int item_steps = gs->items_visible - 1;
+ int item_direction = (mpos < gpos + gi->scrollbar.position ? -1 : +1);
+
+ if (IS_WHEEL_BUTTON(button))
+ {
+ boolean scroll_single_step = ((GetKeyModState() & KMOD_Alt) != 0);
+
+ item_steps = (scroll_single_step ? 1 : DEFAULT_WHEEL_STEPS);
+ item_direction = (button == MB_WHEEL_UP ||
+ button == MB_WHEEL_LEFT ? -1 : +1);
+ }
changed_position = FALSE;
- gs->item_position +=
- gs->items_visible * (mpos < gpos + gi->scrollbar.position ? -1 : +1);
+ gs->item_position += item_steps * item_direction;
if (gs->item_position < 0)
gs->item_position = 0;
if (gi->event_mask & GD_EVENT_MOVING && changed_position)
gi->callback_action(gi);
- /* don't handle this scrollbar anymore while mouse button pressed */
- last_gi = NULL;
-
return TRUE;
}
+ else
+ {
+ /* don't handle this scrollbar anymore when mouse position reached */
+ if (gadget_pressed_repeated)
+ {
+ gadget_stopped = TRUE;
+
+ return TRUE;
+ }
+ }
+ }
+ }
+
+ if (gadget_pressed)
+ {
+ PlayGadgetSoundActivating();
+
+ if (gi->type == GD_TYPE_CHECK_BUTTON)
+ {
+ gi->checked = !gi->checked;
+ }
+ else if (gi->type == GD_TYPE_RADIO_BUTTON)
+ {
+ struct GadgetInfo *rgi = gadget_list_first_entry;
+
+ while (rgi)
+ {
+ if (rgi->mapped &&
+ rgi->type == GD_TYPE_RADIO_BUTTON &&
+ rgi->radio_nr == gi->radio_nr &&
+ rgi != gi)
+ {
+ rgi->checked = FALSE;
+ DrawGadget(rgi, DG_UNPRESSED, rgi->direct_draw);
+ }
+
+ rgi = rgi->next;
+ }
+
+ gi->checked = TRUE;
+ }
+ else if (gi->type & GD_TYPE_SCROLLBAR)
+ {
+ int mpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? mx : my);
+ int gpos = (gi->type == GD_TYPE_SCROLLBAR_HORIZONTAL ? gi->x : gi->y);
+ int slider_start = gpos + gi->scrollbar.position;
+ int slider_end = gpos + gi->scrollbar.position + gi->scrollbar.size - 1;
+ boolean inside_slider = (mpos >= slider_start && mpos <= slider_end);
+
+ if (!IS_WHEEL_BUTTON(button) && inside_slider)
+ {
+ /* start dragging scrollbar */
+ gi->scrollbar.drag_position =
+ scrollbar_mouse_pos - gi->scrollbar.position;
+ }
}
else if (gi->type & GD_TYPE_SELECTBOX)
{
gi->event.button = button;
gi->event.off_borders = FALSE;
- /* initialize delay counter */
- DelayReached(&pressed_delay, 0);
-
if (gi->event_mask & GD_EVENT_PRESSED)
gi->callback_action(gi);
}
{
gi->event.type = GD_EVENT_PRESSED;
- if (gi->event_mask & GD_EVENT_REPEATED &&
- DelayReached(&pressed_delay, GADGET_FRAME_DELAY))
+ if (gi->event_mask & GD_EVENT_REPEATED && gadget_pressed_delay_reached)
gi->callback_action(gi);
}
DrawGadget(gi, DG_PRESSED, gi->direct_draw);
}
- gi->state = (gadget_moving_inside || gi->type & GD_TYPE_SCROLLBAR ?
+ gi->state = (gadget_moving_inside || gadget_draggable ?
GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
gi->event.type = GD_EVENT_MOVING;
gi->event.off_borders = gadget_moving_off_borders;
if (gi->type & GD_TYPE_SCROLLBAR)
DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
+ gi->state = GD_BUTTON_UNPRESSED;
gi->event.type = GD_EVENT_RELEASED;
if (gi->event_mask & GD_EVENT_RELEASED &&
static void insertCharIntoTextArea(struct GadgetInfo *gi, char c)
{
- char text[MAX_GADGET_TEXTSIZE];
+ char text[MAX_GADGET_TEXTSIZE + 1];
int cursor_position = gi->textarea.cursor_position;
- if (strlen(gi->textarea.value) == MAX_GADGET_TEXTSIZE) /* no space left */
+ if (strlen(gi->textarea.value) >= MAX_GADGET_TEXTSIZE) /* no space left */
return;
strcpy(text, gi->textarea.value);
if (key == KSYM_Return) /* valid for both text input and selectbox */
{
- boolean gadget_changed = (gi->event_mask & GD_EVENT_TEXT_RETURN);
+ boolean gadget_changed = ((gi->event_mask & GD_EVENT_TEXT_RETURN) != 0);
if (gi->type & GD_TYPE_TEXT_INPUT)
{
CheckRangeOfNumericInputGadget(gi);
- if (strcmp(gi->textinput.value, gi->textinput.last_value) != 0)
+ if (!strEqual(gi->textinput.last_value, gi->textinput.value))
strcpy(gi->textinput.last_value, gi->textinput.value);
else
gadget_changed = FALSE;
}
else if (gi->type & GD_TYPE_TEXT_INPUT) /* only valid for text input */
{
- char text[MAX_GADGET_TEXTSIZE];
+ char text[MAX_GADGET_TEXTSIZE + 1];
int text_length = strlen(gi->textinput.value);
int cursor_pos = gi->textinput.cursor_position;
char letter = getCharFromKey(key);
}
else if (gi->type & GD_TYPE_TEXT_AREA) /* only valid for text area */
{
- char text[MAX_GADGET_TEXTSIZE];
+ char text[MAX_GADGET_TEXTSIZE + 1];
int text_length = strlen(gi->textarea.value);
int area_ysize = gi->textarea.ysize;
int cursor_x_pref = gi->textarea.cursor_x_preferred;