// (c) 1995-2014 by Artsoft Entertainment
// Holger Schemel
// info@artsoft.org
-// http://www.artsoft.org/
+// https://www.artsoft.org/
// ----------------------------------------------------------------------------
// gadgets.c
// ============================================================================
}
if (next_free_gadget_id <= 0) // cannot get new gadget id
- Error(ERR_EXIT, "too much gadgets -- this should not happen");
+ Fail("too much gadgets -- this should not happen");
return id;
}
if (gi == NULL || gi->deactivated)
return;
+ if (gi->overlay_touch_button) // will be drawn later (as texture)
+ return;
+
gd = (!gi->active ? &gi->alt_design[state] :
gi->checked ? &gi->alt_design[state] : &gi->design[state]);
}
}
+static void SetGadgetPosition_OverlayTouchButton(struct GadgetInfo *gi)
+{
+ gi->x = gi->orig_x;
+ gi->y = gi->orig_y;
+
+ if (gi->x < 0)
+ gi->x += video.screen_width;
+ if (gi->y < 0)
+ gi->y += video.screen_height;
+
+ gi->x -= video.screen_xoffset;
+ gi->y -= video.screen_yoffset;
+}
+
+void SetGadgetsPosition_OverlayTouchButtons(void)
+{
+ struct GadgetInfo *gi;
+
+ if (gadget_list_first_entry == NULL)
+ return;
+
+ for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
+ if (gi->overlay_touch_button)
+ SetGadgetPosition_OverlayTouchButton(gi);
+}
+
+static void DrawGadget_OverlayTouchButton(struct GadgetInfo *gi)
+{
+ struct GadgetDesign *gd;
+ int state = (gi->state ? GD_BUTTON_PRESSED : GD_BUTTON_UNPRESSED);
+
+ if (gi == NULL || gi->deactivated)
+ return;
+
+ gd = (!gi->active ? &gi->alt_design[state] :
+ gi->checked ? &gi->alt_design[state] : &gi->design[state]);
+
+ int x = gi->x + video.screen_xoffset;
+ int y = gi->y + video.screen_yoffset;
+ int alpha = gi->overlay_touch_button_alpha;
+ int alpha_max = SDL_ALPHA_OPAQUE;
+ int alpha_step = ALPHA_FADING_STEPSIZE(alpha_max);
+
+ // only show mapped overlay touch buttons if touch screen is really used
+ if (gi->mapped && runtime.uses_touch_device)
+ {
+ if (alpha < alpha_max)
+ alpha = MIN(alpha + alpha_step, alpha_max);
+ }
+ else
+ {
+ alpha = MAX(0, alpha - alpha_step);
+ }
+
+ gi->overlay_touch_button_alpha = alpha;
+
+ if (alpha == 0)
+ return;
+
+ switch (gi->type)
+ {
+ case GD_TYPE_NORMAL_BUTTON:
+ case GD_TYPE_CHECK_BUTTON:
+ case GD_TYPE_RADIO_BUTTON:
+ SDL_SetTextureAlphaMod(gd->bitmap->texture_masked, alpha);
+ SDL_SetTextureBlendMode(gd->bitmap->texture_masked, SDL_BLENDMODE_BLEND);
+
+ BlitToScreenMasked(gd->bitmap, gd->x, gd->y, gi->width, gi->height, x, y);
+ break;
+
+ default:
+ return;
+ }
+}
+
+void DrawGadgets_OverlayTouchButtons(void)
+{
+ struct GadgetInfo *gi;
+
+ if (gadget_list_first_entry == NULL)
+ return;
+
+ for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
+ if (gi->overlay_touch_button)
+ DrawGadget_OverlayTouchButton(gi);
+}
+
+boolean CheckPosition_OverlayTouchButtons(int mx, int my, int button)
+{
+ struct GadgetInfo *gi = getGadgetInfoFromMousePosition(mx, my, button);
+
+ return (gi != NULL && gi->overlay_touch_button);
+}
+
static int get_minimal_size_for_numeric_input(int minmax_value)
{
int min_size = 1; // value needs at least one digit
{
int tag = first_tag;
- if (gi == NULL || gi->deactivated)
+ if (gi == NULL)
return;
while (tag != GDI_END)
{
- switch(tag)
+ switch (tag)
{
case GDI_IMAGE_ID:
gi->image_id = va_arg(ap, int);
break;
case GDI_X:
- gi->x = va_arg(ap, int);
+ gi->x = gi->orig_x = va_arg(ap, int);
break;
case GDI_Y:
- gi->y = va_arg(ap, int);
+ gi->y = gi->orig_y = va_arg(ap, int);
break;
case GDI_WIDTH:
gi->direct_draw = (boolean)va_arg(ap, int);
break;
+ case GDI_OVERLAY_TOUCH_BUTTON:
+ gi->overlay_touch_button = (boolean)va_arg(ap, int);
+ if (gi->overlay_touch_button)
+ SetGadgetPosition_OverlayTouchButton(gi);
+ break;
+
case GDI_CALLBACK_ACTION_ALWAYS:
gi->callback_action_always = (boolean)va_arg(ap, int);
break;
break;
default:
- Error(ERR_EXIT, "HandleGadgetTags(): unknown tag %d", tag);
+ Fail("HandleGadgetTags(): unknown tag %d", tag);
}
tag = va_arg(ap, int); // read next tag
gi->design[GD_BUTTON_PRESSED].bitmap == NULL))
gi->deactivated = TRUE;
- // check if gadget is placed off-screen
- if (gi->x < 0 || gi->y < 0)
+ // check if gadget is placed off-screen (and is no overlay touch button)
+ if ((gi->x < 0 || gi->y < 0) && !gi->overlay_touch_button)
gi->deactivated = TRUE;
// adjust gadget values in relation to other gadget values
gi->height = 2 * border_ysize + font_height;
if (gi->selectbox.options == NULL)
- Error(ERR_EXIT, "selectbox gadget incomplete (missing options array)");
+ Fail("selectbox gadget incomplete (missing options array)");
gi->selectbox.num_values = 0;
while (gi->selectbox.options[gi->selectbox.num_values].text != NULL)
if (gi->width == 0 || gi->height == 0 ||
gs->items_max == 0 || gs->items_visible == 0)
- Error(ERR_EXIT, "scrollbar gadget incomplete (missing tags)");
+ Fail("scrollbar gadget incomplete (missing tags)");
// calculate internal scrollbar values
gs->size_min = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
new_gadget->callback_action = default_callback_action;
new_gadget->active = TRUE;
new_gadget->direct_draw = TRUE;
+ new_gadget->overlay_touch_button = FALSE;
+ new_gadget->overlay_touch_button_alpha = 0;
new_gadget->next = NULL;
if (gi == NULL || gi->deactivated || gi->mapped)
return;
+ // do not map overlay touch buttons if touch screen is not used
+ if (gi->overlay_touch_button && !runtime.uses_touch_device)
+ return;
+
gi->mapped = TRUE;
if (redraw)
struct GadgetInfo *gi = last_gi;
boolean gadget_changed = ((gi->event_mask & GD_EVENT_TEXT_LEAVING) != 0);
- // check if text gadget has changed its value
+ // check if text input gadget has changed its value
if (gi->type & GD_TYPE_TEXT_INPUT)
{
CheckRangeOfNumericInputGadget(gi);
gadget_changed = FALSE;
}
+ // check if text area gadget has changed its value
+ if (gi->type & GD_TYPE_TEXT_AREA)
+ {
+ if (!strEqual(gi->textarea.last_value, gi->textarea.value))
+ strcpy(gi->textarea.last_value, gi->textarea.value);
+ else
+ gadget_changed = FALSE;
+ }
+
// selectbox does not change its value when closed by clicking outside
if (gi->type & GD_TYPE_SELECTBOX)
gadget_changed = FALSE;
if (gadget_pressed) // gadget pressed the first time
{
// initialize delay counter
- DelayReached(&pressed_delay, 0);
+ ResetDelayCounter(&pressed_delay);
// start gadget delay with longer delay after first click on gadget
pressed_delay_value = GADGET_FRAME_DELAY_FIRST;
{
if (anyTextGadgetActive())
{
+ boolean gadget_changed = ((gi->event_mask & GD_EVENT_TEXT_LEAVING) != 0);
+
// restore previous text (before activating text gadget)
if (gi->type & GD_TYPE_TEXT_INPUT)
+ {
strcpy(gi->textinput.value, gi->textinput.last_value);
+ CheckRangeOfNumericInputGadget(gi);
+ }
+
+ // store current text for text area gadgets when pressing "Escape" key
+ if (gi->type & GD_TYPE_TEXT_AREA)
+ {
+ if (!strEqual(gi->textarea.last_value, gi->textarea.value))
+ strcpy(gi->textarea.last_value, gi->textarea.value);
+ else
+ gadget_changed = FALSE;
+ }
+
DrawGadget(gi, DG_UNPRESSED, gi->direct_draw);
+ if (gi->type & GD_TYPE_TEXT_AREA)
+ {
+ gi->event.type = GD_EVENT_TEXT_LEAVING;
+
+ DoGadgetCallbackAction(gi, gadget_changed);
+ }
+
last_gi = NULL;
StopTextInput();
projects / rocksndiamonds.git / blobdiff