mirror of https://github.com/OpenTTD/OpenTTD.git
(svn r20457) -Codechange: Remove _scrolling_scrollbar and WF_SCROLL_MIDDLE and instead store the widget index of the being scrolled scrollbar in the Window.
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@ -65,25 +65,24 @@ static Point HandleScrollbarHittest(const Scrollbar *sb, int top, int bottom, bo
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/**
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* Compute new position of the scrollbar after a click and updates the window flags.
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* @param w Window on which a scroll was performed.
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* @param wtp Scrollbar widget type.
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* @param nw Scrollbar
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* @param mi Minimum coordinate of the scroll bar.
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* @param ma Maximum coordinate of the scroll bar.
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* @param x The X coordinate of the mouse click.
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* @param y The Y coordinate of the mouse click.
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*/
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static void ScrollbarClickPositioning(Window *w, WidgetType wtp, int x, int y, int mi, int ma)
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static void ScrollbarClickPositioning(Window *w, NWidgetScrollbar *nw, int x, int y, int mi, int ma)
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{
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int pos;
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Scrollbar *sb;
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bool rtl = false;
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Scrollbar *sb = nw->GetScrollbar(w);
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switch (wtp) {
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switch (nw->type) {
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case WWT_SCROLLBAR:
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/* vertical scroller */
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w->flags4 &= ~WF_HSCROLL;
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w->flags4 &= ~WF_SCROLL2;
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pos = y;
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sb = &w->old_vscroll;
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break;
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case WWT_SCROLL2BAR:
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@ -91,7 +90,6 @@ static void ScrollbarClickPositioning(Window *w, WidgetType wtp, int x, int y, i
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w->flags4 &= ~WF_HSCROLL;
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w->flags4 |= WF_SCROLL2;
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pos = y;
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sb = &w->old_vscroll2;
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break;
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case WWT_HSCROLLBAR:
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@ -99,7 +97,6 @@ static void ScrollbarClickPositioning(Window *w, WidgetType wtp, int x, int y, i
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w->flags4 &= ~WF_SCROLL2;
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w->flags4 |= WF_HSCROLL;
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pos = x;
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sb = &w->old_hscroll;
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rtl = _dynlang.text_dir == TD_RTL;
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break;
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@ -123,7 +120,7 @@ static void ScrollbarClickPositioning(Window *w, WidgetType wtp, int x, int y, i
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}
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_left_button_clicked = false;
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} else {
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Point pt = HandleScrollbarHittest(sb, mi, ma, wtp == WWT_HSCROLLBAR);
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Point pt = HandleScrollbarHittest(sb, mi, ma, nw->type == WWT_HSCROLLBAR);
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if (pos < pt.x) {
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sb->UpdatePosition(rtl ? sb->GetCapacity() : -sb->GetCapacity());
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@ -132,8 +129,7 @@ static void ScrollbarClickPositioning(Window *w, WidgetType wtp, int x, int y, i
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} else {
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_scrollbar_start_pos = pt.x - mi - 9;
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_scrollbar_size = ma - mi - 23;
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w->flags4 |= WF_SCROLL_MIDDLE;
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_scrolling_scrollbar = true;
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w->scrolling_scrollbar = nw->index;
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_cursorpos_drag_start = _cursor.pos;
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}
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}
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@ -149,7 +145,7 @@ static void ScrollbarClickPositioning(Window *w, WidgetType wtp, int x, int y, i
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* @param x The X coordinate of the mouse click.
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* @param y The Y coordinate of the mouse click.
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*/
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void ScrollbarClickHandler(Window *w, const NWidgetCore *nw, int x, int y)
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void ScrollbarClickHandler(Window *w, NWidgetCore *nw, int x, int y)
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{
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int mi, ma;
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@ -174,7 +170,7 @@ void ScrollbarClickHandler(Window *w, const NWidgetCore *nw, int x, int y)
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default: NOT_REACHED();
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}
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ScrollbarClickPositioning(w, nw->type, x, y, mi, ma);
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ScrollbarClickPositioning(w, dynamic_cast<NWidgetScrollbar*>(nw), x, y, mi, ma);
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}
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/**
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@ -1693,21 +1689,21 @@ void NWidgetScrollbar::Draw(const Window *w)
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switch (this->type) {
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case WWT_HSCROLLBAR:
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DrawHorizontalScrollbar(r, this->colour, (w->flags4 & (WF_SCROLL_UP | WF_HSCROLL)) == (WF_SCROLL_UP | WF_HSCROLL),
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(w->flags4 & (WF_SCROLL_MIDDLE | WF_HSCROLL)) == (WF_SCROLL_MIDDLE | WF_HSCROLL),
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w->scrolling_scrollbar == this->index,
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(w->flags4 & (WF_SCROLL_DOWN | WF_HSCROLL)) == (WF_SCROLL_DOWN | WF_HSCROLL), this->GetScrollbar(w));
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break;
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case WWT_SCROLLBAR:
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assert(this->widget_data == 0);
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DrawVerticalScrollbar(r, this->colour, (w->flags4 & (WF_SCROLL_UP | WF_HSCROLL | WF_SCROLL2)) == WF_SCROLL_UP,
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(w->flags4 & (WF_SCROLL_MIDDLE | WF_HSCROLL | WF_SCROLL2)) == WF_SCROLL_MIDDLE,
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w->scrolling_scrollbar == this->index,
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(w->flags4 & (WF_SCROLL_DOWN | WF_HSCROLL | WF_SCROLL2)) == WF_SCROLL_DOWN, this->GetScrollbar(w));
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break;
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case WWT_SCROLL2BAR:
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assert(this->widget_data == 0);
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DrawVerticalScrollbar(r, this->colour, (w->flags4 & (WF_SCROLL_UP | WF_HSCROLL | WF_SCROLL2)) == (WF_SCROLL_UP | WF_SCROLL2),
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(w->flags4 & (WF_SCROLL_MIDDLE | WF_HSCROLL | WF_SCROLL2)) == (WF_SCROLL_MIDDLE | WF_SCROLL2),
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w->scrolling_scrollbar == this->index,
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(w->flags4 & (WF_SCROLL_DOWN | WF_HSCROLL | WF_SCROLL2)) == (WF_SCROLL_DOWN | WF_SCROLL2), this->GetScrollbar(w));
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break;
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@ -56,7 +56,6 @@ int _scrollbar_start_pos;
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int _scrollbar_size;
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byte _scroller_click_timeout;
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bool _scrolling_scrollbar; ///< A scrollbar is being scrolled with the mouse.
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bool _scrolling_viewport; ///< A viewport is being scrolled with the mouse.
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bool _mouse_hovering; ///< The mouse is hovering over the same point.
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@ -312,7 +311,7 @@ static void StartWindowSizing(Window *w, bool to_left);
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*/
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static void DispatchLeftClickEvent(Window *w, int x, int y, int click_count)
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{
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const NWidgetCore *nw = w->nested_root->GetWidgetFromPos(x, y);
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NWidgetCore *nw = w->nested_root->GetWidgetFromPos(x, y);
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WidgetType widget_type = (nw != NULL) ? nw->type : WWT_EMPTY;
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bool focused_widget_changed = false;
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@ -1337,7 +1336,7 @@ void Window::InitNested(const WindowDesc *desc, WindowNumber window_number)
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}
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/** Empty constructor, initialization has been moved to #InitNested() called from the constructor of the derived class. */
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Window::Window() : old_hscroll(false), old_vscroll(true), old_vscroll2(true)
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Window::Window() : old_hscroll(false), old_vscroll(true), old_vscroll2(true), scrolling_scrollbar(-1)
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{
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}
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@ -1854,33 +1853,25 @@ static void StartWindowSizing(Window *w, bool to_left)
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static EventState HandleScrollbarScrolling()
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{
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Window *w;
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/* Get out quickly if no item is being scrolled */
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if (!_scrolling_scrollbar) return ES_NOT_HANDLED;
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/* Find the scrolling window */
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FOR_ALL_WINDOWS_FROM_BACK(w) {
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if (w->flags4 & WF_SCROLL_MIDDLE) {
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if (w->scrolling_scrollbar >= 0) {
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/* Abort if no button is clicked any more. */
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if (!_left_button_down) {
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w->flags4 &= ~WF_SCROLL_MIDDLE;
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w->scrolling_scrollbar = -1;
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w->SetDirty();
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break;
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return ES_HANDLED;
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}
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int i;
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Scrollbar *sb;
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Scrollbar *sb = w->GetScrollbar(w->scrolling_scrollbar);
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bool rtl = false;
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if (w->flags4 & WF_HSCROLL) {
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sb = &w->old_hscroll;
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i = _cursor.pos.x - _cursorpos_drag_start.x;
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rtl = _dynlang.text_dir == TD_RTL;
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} else if (w->flags4 & WF_SCROLL2) {
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sb = &w->old_vscroll2;
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i = _cursor.pos.y - _cursorpos_drag_start.y;
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} else {
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sb = &w->old_vscroll;
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i = _cursor.pos.y - _cursorpos_drag_start.y;
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}
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@ -1895,8 +1886,7 @@ static EventState HandleScrollbarScrolling()
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}
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}
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_scrolling_scrollbar = false;
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return ES_HANDLED;
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return ES_NOT_HANDLED;
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}
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/**
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@ -398,6 +398,8 @@ public:
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NWidgetStacked *shade_select; ///< Selection widget (#NWID_SELECTION) to use for shading the window. If \c NULL, window cannot shade.
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Dimension unshaded_size; ///< Last known unshaded size (only valid while shaded).
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int scrolling_scrollbar; ///< Widgetindex of just being dragged scrollbar. -1 of none is active.
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Window *parent; ///< Parent window.
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Window *z_front; ///< The window in front of us in z-order.
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Window *z_back; ///< The window behind us in z-order.
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@ -875,7 +877,6 @@ enum WindowFlags {
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WF_DRAGGING = 1 << 3, ///< Window is being dragged
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WF_SCROLL_UP = 1 << 4, ///< Upper scroll button has been pressed, @see ScrollbarClickHandler()
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WF_SCROLL_DOWN = 1 << 5, ///< Lower scroll button has been pressed, @see ScrollbarClickHandler()
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WF_SCROLL_MIDDLE = 1 << 6, ///< Scrollbar scrolling, @see ScrollbarClickHandler()
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WF_SCROLL2 = 1 << 7,
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WF_HSCROLL = 1 << 8,
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WF_SIZING_RIGHT = 1 << 9, ///< Window is being resized towards the right.
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@ -933,7 +934,6 @@ extern int _scrollbar_start_pos;
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extern int _scrollbar_size;
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extern byte _scroller_click_timeout;
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extern bool _scrolling_scrollbar;
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extern bool _scrolling_viewport;
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extern bool _mouse_hovering;
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@ -951,6 +951,6 @@ Window *GetCallbackWnd();
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void SetFocusedWindow(Window *w);
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bool EditBoxInGlobalFocus();
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void ScrollbarClickHandler(Window *w, const NWidgetCore *nw, int x, int y);
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void ScrollbarClickHandler(Window *w, NWidgetCore *nw, int x, int y);
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#endif /* WINDOW_GUI_H */
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