/**
*
* rct2: 0x006EAF26
*/
void widget_scroll_update_thumbs(rct_window *w, rct_widgetindex widget_index)
{
rct_widget *widget = &w->widgets[widget_index];
rct_scroll* scroll = &w->scrolls[window_get_scroll_data_index(w, widget_index)];
if (scroll->flags & HSCROLLBAR_VISIBLE) {
sint32 view_size = widget->right - widget->left - 21;
if (scroll->flags & VSCROLLBAR_VISIBLE)
view_size -= 11;
sint32 x = scroll->h_left * view_size;
if (scroll->h_right != 0)
x /= scroll->h_right;
scroll->h_thumb_left = x + 11;
x = widget->right - widget->left - 2;
if (scroll->flags & VSCROLLBAR_VISIBLE)
x -= 11;
x += scroll->h_left;
if (scroll->h_right != 0)
x = (x * view_size) / scroll->h_right;
x += 11;
view_size += 10;
scroll->h_thumb_right = min(x, view_size);
if(scroll->h_thumb_right - scroll->h_thumb_left < 20) {
double barPosition = (scroll->h_thumb_right * 1.0) / view_size;
scroll->h_thumb_left = (uint16) lround(scroll->h_thumb_left - (20 * barPosition));
scroll->h_thumb_right = (uint16) lround(scroll->h_thumb_right + (20 * (1 - barPosition)));
}
}
if (scroll->flags & VSCROLLBAR_VISIBLE) {
sint32 view_size = widget->bottom - widget->top - 21;
if (scroll->flags & HSCROLLBAR_VISIBLE)
view_size -= 11;
sint32 y = scroll->v_top * view_size;
if (scroll->v_bottom != 0)
y /= scroll->v_bottom;
scroll->v_thumb_top = y + 11;
y = widget->bottom - widget->top - 2;
if (scroll->flags & HSCROLLBAR_VISIBLE)
y -= 11;
y += scroll->v_top;
if (scroll->v_bottom != 0)
y = (y * view_size) / scroll->v_bottom;
y += 11;
view_size += 10;
scroll->v_thumb_bottom = min(y, view_size);
if(scroll->v_thumb_bottom - scroll->v_thumb_top < 20) {
double barPosition = (scroll->v_thumb_bottom * 1.0) / view_size;
scroll->v_thumb_top = (uint16) lround(scroll->v_thumb_top - (20 * barPosition));
scroll->v_thumb_bottom = (uint16) lround(scroll->v_thumb_bottom + (20 * (1 - barPosition)));
}
}
}
/**
*
* rct2: 0x006E957F
*/
static void input_scroll_drag_begin(sint32 x, sint32 y, rct_window* w, rct_widget* widget, rct_widgetindex widgetIndex)
{
_inputState = INPUT_STATE_SCROLL_RIGHT;
gInputDragLastX = x;
gInputDragLastY = y;
_dragWidget.window_classification = w->classification;
_dragWidget.window_number = w->number;
_dragWidget.widget_index = widgetIndex;
_ticksSinceDragStart = 0;
_dragScrollIndex = window_get_scroll_data_index(w, widgetIndex);
platform_hide_cursor();
}
/**
*
* rct2: 0x006EAF26
*/
void widget_scroll_update_thumbs(rct_window *w, int widget_index)
{
rct_widget* widget;
rct_scroll* scroll;
int x, y, view_size;
widget = &w->widgets[widget_index];
scroll = &w->scrolls[window_get_scroll_data_index(w, widget_index)];
if (scroll->flags & HSCROLLBAR_VISIBLE) {
view_size = widget->right - widget->left - 21;
if (scroll->flags & VSCROLLBAR_VISIBLE)
view_size -= 11;
x = scroll->h_left * view_size;
if (scroll->h_right != 0)
x /= scroll->h_right;
scroll->h_thumb_left = x + 11;
x = widget->right - widget->left - 2;
if (scroll->flags & VSCROLLBAR_VISIBLE)
x -= 11;
x += scroll->h_left;
if (scroll->h_right != 0)
x = (x * view_size) / scroll->h_right;
x += 11;
view_size += 10;
scroll->h_thumb_right = min(x, view_size);
}
if (scroll->flags & VSCROLLBAR_VISIBLE) {
view_size = widget->bottom - widget->top - 21;
if (scroll->flags & HSCROLLBAR_VISIBLE)
view_size -= 11;
y = scroll->v_top * view_size;
if (scroll->v_bottom != 0)
y /= scroll->v_bottom;
scroll->v_thumb_top = y + 11;
y = widget->bottom - widget->top - 2;
if (scroll->flags & HSCROLLBAR_VISIBLE)
y -= 11;
y += scroll->v_top;
if (scroll->v_bottom != 0)
y = (y * view_size) / scroll->v_bottom;
y += 11;
view_size += 10;
scroll->v_thumb_bottom = min(y, view_size);
}
}
/**
*
* rct2: 0x006EBD96
*/
static void widget_scroll_draw(rct_drawpixelinfo *dpi, rct_window *w, int widgetIndex)
{
rct_widget* widget;
rct_scroll* scroll;
int scrollIndex;
int l, t, r, b;
int cl, ct, cr, cb;
uint8 colour;
rct_drawpixelinfo scroll_dpi;
// Get the widget
scrollIndex = window_get_scroll_data_index(w, widgetIndex);
widget = &w->widgets[widgetIndex];
scroll = &w->scrolls[scrollIndex];
// Resolve the absolute ltrb
l = w->x + widget->left;
t = w->y + widget->top;
r = w->x + widget->right;
b = w->y + widget->bottom;
// Get the colour
colour = w->colours[widget->colour];
// Draw the border
gfx_fill_rect_inset(dpi, l, t, r, b, colour, 0x60);
// Inflate by -1
l++;
t++;
r--;
b--;
// Horizontal scrollbar
if (scroll->flags & HSCROLLBAR_VISIBLE)
widget_hscrollbar_draw(dpi, scroll, l, b - 10, (scroll->flags & VSCROLLBAR_VISIBLE ? r - 10 : r), b, colour);
// Vertical scrollbar
if (scroll->flags & VSCROLLBAR_VISIBLE)
widget_vscrollbar_draw(dpi, scroll, r - 10, t, r, (scroll->flags & HSCROLLBAR_VISIBLE ? b - 10 : b), colour);
// Contents
if (scroll->flags & HSCROLLBAR_VISIBLE)
b -= 11;
if (scroll->flags & VSCROLLBAR_VISIBLE)
r -= 11;
// Create a new inner scroll dpi
scroll_dpi = *dpi;
// Clip the scroll dpi against the outer dpi
cl = max(dpi->x, l);
ct = max(dpi->y, t);
cr = min(dpi->x + dpi->width, r);
cb = min(dpi->y + dpi->height, b);
// Set the respective dpi attributes
scroll_dpi.x = cl - l + scroll->h_left;
scroll_dpi.y = ct - t + scroll->v_top;
scroll_dpi.width = cr - cl;
scroll_dpi.height = cb - ct;
scroll_dpi.bits += cl - dpi->x;
scroll_dpi.bits += (ct - dpi->y) * (dpi->width + dpi->pitch);
scroll_dpi.pitch = (dpi->width + dpi->pitch) - scroll_dpi.width;
// Draw the scroll contents
if (scroll_dpi.width > 0 && scroll_dpi.height > 0)
RCT2_CALLPROC_X(w->event_handlers[WE_SCROLL_PAINT], 0, 0, 0, 0, (int)w, (int)&scroll_dpi, 0);
}
/**
*
* rct2: 0x006EBD96
*/
static void widget_scroll_draw(rct_drawpixelinfo *dpi, rct_window *w, rct_widgetindex widgetIndex)
{
// Get the widget
sint32 scrollIndex = window_get_scroll_data_index(w, widgetIndex);
rct_widget *widget = &w->widgets[widgetIndex];
rct_scroll* scroll = &w->scrolls[scrollIndex];
// Resolve the absolute ltrb
sint32 l = w->x + widget->left;
sint32 t = w->y + widget->top;
sint32 r = w->x + widget->right;
sint32 b = w->y + widget->bottom;
// Get the colour
uint8 colour = w->colours[widget->colour];
// Draw the border
gfx_fill_rect_inset(dpi, l, t, r, b, colour, INSET_RECT_F_60);
// Inflate by -1
l++;
t++;
r--;
b--;
gCurrentFontSpriteBase = FONT_SPRITE_BASE_MEDIUM;
// Horizontal scrollbar
if (scroll->flags & HSCROLLBAR_VISIBLE)
widget_hscrollbar_draw(dpi, scroll, l, b - 10, ((scroll->flags & VSCROLLBAR_VISIBLE) ? r - 11 : r), b, colour);
// Vertical scrollbar
if (scroll->flags & VSCROLLBAR_VISIBLE)
widget_vscrollbar_draw(dpi, scroll, r - 10, t, r, ((scroll->flags & HSCROLLBAR_VISIBLE) ? b - 11 : b), colour);
// Contents
if (scroll->flags & HSCROLLBAR_VISIBLE)
b -= 11;
if (scroll->flags & VSCROLLBAR_VISIBLE)
r -= 11;
b++;
r++;
// Create a new inner scroll dpi
rct_drawpixelinfo scroll_dpi = *dpi;
// Clip the scroll dpi against the outer dpi
sint32 cl = max(dpi->x, l);
sint32 ct = max(dpi->y, t);
sint32 cr = min(dpi->x + dpi->width, r);
sint32 cb = min(dpi->y + dpi->height, b);
// Set the respective dpi attributes
scroll_dpi.x = cl - l + scroll->h_left;
scroll_dpi.y = ct - t + scroll->v_top;
scroll_dpi.width = cr - cl;
scroll_dpi.height = cb - ct;
scroll_dpi.bits += cl - dpi->x;
scroll_dpi.bits += (ct - dpi->y) * (dpi->width + dpi->pitch);
scroll_dpi.pitch = (dpi->width + dpi->pitch) - scroll_dpi.width;
// Draw the scroll contents
if (scroll_dpi.width > 0 && scroll_dpi.height > 0)
window_event_scroll_paint_call(w, &scroll_dpi, scrollIndex);
}
