| OpenTTD
    | 
Baseclass for nested widgets. More...
#include <widget_type.h>
 
  
 | Public Member Functions | |
| NWidgetBase (WidgetType tp) | |
| Base class constructor. | |
| virtual void | SetupSmallestSize (Window *w, bool init_array)=0 | 
| Compute smallest size needed by the widget. | |
| virtual void | AssignSizePosition (SizingType sizing, uint x, uint y, uint given_width, uint given_height, bool rtl)=0 | 
| Assign size and position to the widget. | |
| virtual void | FillNestedArray (NWidgetBase **array, uint length)=0 | 
| virtual NWidgetCore * | GetWidgetFromPos (int x, int y)=0 | 
| Retrieve a widget by its position. | |
| virtual NWidgetBase * | GetWidgetOfType (WidgetType tp) | 
| Retrieve a widget by its type. | |
| virtual bool | IsHighlighted () const | 
| virtual TextColour | GetHighlightColour () const | 
| virtual void | SetHighlighted (TextColour highlight_colour) | 
| void | SetPadding (uint8 top, uint8 right, uint8 bottom, uint8 left) | 
| Set additional space (padding) around the widget. | |
| uint | GetHorizontalStepSize (SizingType sizing) const | 
| Get the horizontal sizing step. | |
| uint | GetVerticalStepSize (SizingType sizing) const | 
| Get the vertical sizing step. | |
| virtual void | Draw (const Window *w)=0 | 
| Draw the widgets of the tree. | |
| virtual void | SetDirty (const Window *w) const | 
| Mark the widget as 'dirty' (in need of repaint). | |
|  Public Member Functions inherited from ZeroedMemoryAllocator | |
| void * | operator new (size_t size) | 
| Memory allocator for a single class instance. | |
| void * | operator new[] (size_t size) | 
| Memory allocator for an array of class instances. | |
| void | operator delete (void *ptr) | 
| Memory release for a single class instance. | |
| void | operator delete[] (void *ptr) | 
| Memory release for an array of class instances. | |
| Data Fields | |
| WidgetType | type | 
| Type of the widget / nested widget. | |
| uint | fill_x | 
| Horizontal fill stepsize (from initial size, 0means not resizable). | |
| uint | fill_y | 
| Vertical fill stepsize (from initial size, 0means not resizable). | |
| uint | resize_x | 
| Horizontal resize step ( 0means not resizable). | |
| uint | resize_y | 
| Vertical resize step ( 0means not resizable). | |
| uint | smallest_x | 
| Smallest horizontal size of the widget in a filled window. | |
| uint | smallest_y | 
| Smallest vertical size of the widget in a filled window. | |
| uint | current_x | 
| Current horizontal size (after resizing). | |
| uint | current_y | 
| Current vertical size (after resizing). | |
| uint | pos_x | 
| Horizontal position of top-left corner of the widget in the window. | |
| uint | pos_y | 
| Vertical position of top-left corner of the widget in the window. | |
| NWidgetBase * | next | 
| Pointer to next widget in container. Managed by parent container widget. | |
| NWidgetBase * | prev | 
| Pointer to previous widget in container. Managed by parent container widget. | |
| uint8 | padding_top | 
| Paddings added to the top of the widget. Managed by parent container widget. | |
| uint8 | padding_right | 
| Paddings added to the right of the widget. Managed by parent container widget. (parent container may swap this with padding_left for RTL) | |
| uint8 | padding_bottom | 
| Paddings added to the bottom of the widget. Managed by parent container widget. | |
| uint8 | padding_left | 
| Paddings added to the left of the widget. Managed by parent container widget. (parent container may swap this with padding_right for RTL) | |
| Protected Member Functions | |
| void | StoreSizePosition (SizingType sizing, uint x, uint y, uint given_width, uint given_height) | 
| Store size and position. | |
Baseclass for nested widgets.
 .
.  .
. Definition at line 126 of file widget_type.h.
| NWidgetBase::NWidgetBase | ( | WidgetType | tp | ) | 
Base class constructor.
| tp | Nested widget type. | 
Definition at line 720 of file widget.cpp.
References type.
| 
 | pure virtual | 
Assign size and position to the widget.
| sizing | Type of resizing to perform. | 
| x | Horizontal offset of the widget relative to the left edge of the window. | 
| y | Vertical offset of the widget relative to the top edge of the window. | 
| given_width | Width allocated to the widget. | 
| given_height | Height allocated to the widget. | 
| rtl | Adapt for right-to-left languages (position contents of horizontal containers backwards). | 
Afterwards, pos_x and pos_y contain the top-left position of the widget, smallest_x and smallest_y contain the smallest size such that all widgets of the window are consistent, and current_x and current_y contain the current size.
Implemented in NWidgetSmallmapDisplay, NWidgetNewGRFDisplay, NWidgetToolbarContainer, NWidgetBackground, NWidgetMatrix, NWidgetVertical, NWidgetHorizontalLTR, NWidgetHorizontal, NWidgetStacked, NWidgetResizeBase, and NWidgetServerListHeader.
Referenced by NWidgetServerListHeader::AssignSizePosition(), NWidgetHorizontal::AssignSizePosition(), NWidgetBackground::AssignSizePosition(), NWidgetToolbarContainer::AssignSizePosition(), NWidgetSmallmapDisplay::AssignSizePosition(), Window::InitializeData(), Window::ReInit(), and ResizeWindow().
| 
 | pure virtual | 
Draw the widgets of the tree.
The function calls Window::DrawWidget for each widget with a non-negative index, after the widget itself is painted.
| w | Window that owns the tree. | 
Implemented in NWidgetNewGRFDisplay, NWidgetSmallmapDisplay, NWidgetToolbarContainer, NWidgetLeaf, NWidgetScrollbar, NWidgetViewport, NWidgetBackground, NWidgetSpacer, NWidgetMatrix, NWidgetPIPContainer, NWidgetStacked, and NWidgetServerListHeader.
Referenced by NWidgetMatrix::Draw(), NWidgetNewGRFDisplay::Draw(), and Window::DrawWidgets().
| 
 | inline | 
Get the horizontal sizing step.
| sizing | Type of resize being performed. | 
Definition at line 196 of file widget_type.h.
| 
 | inline | 
Get the vertical sizing step.
| sizing | Type of resize being performed. | 
Definition at line 205 of file widget_type.h.
| 
 | pure virtual | 
Retrieve a widget by its position.
| x | Horizontal position relative to the left edge of the window. | 
| y | Vertical position relative to the top edge of the window. | 
NULL if no widget can be found. Implemented in NWidgetNewGRFDisplay, NWidgetSmallmapDisplay, NWidgetToolbarContainer, NWidgetBackground, NWidgetSpacer, NWidgetMatrix, NWidgetPIPContainer, NWidgetStacked, NWidgetCore, and NWidgetServerListHeader.
Referenced by DispatchHoverEvent(), DispatchLeftClickEvent(), DispatchRightClickEvent(), GetWidgetFromPos(), and HandleMouseOver().
| 
 | virtual | 
Retrieve a widget by its type.
| tp | Widget type to search for. | 
NULL if no widget can be found. Reimplemented in NWidgetBackground, and NWidgetContainer.
Definition at line 794 of file widget.cpp.
References type.
Referenced by Window::ApplyDefaults(), EnsureVisibleCaption(), NWidgetContainer::GetWidgetOfType(), Window::InitializeData(), and Window::RaiseButtons().
| 
 | virtual | 
Mark the widget as 'dirty' (in need of repaint).
| w | Window owning the widget. | 
Reimplemented in NWidgetSpacer.
Definition at line 774 of file widget.cpp.
References current_x, current_y, Window::left, pos_x, pos_y, SetDirtyBlocks(), and Window::top.
Referenced by DispatchLeftClickEvent(), VehicleListWindow::OnPaint(), Window::RaiseButtons(), Window::SetFocusedWidget(), SetFocusedWindow(), Window::SetWidgetDirty(), and Window::UnfocusFocusedWidget().
| 
 | inline | 
Set additional space (padding) around the widget.
| top | Amount of additional space above the widget. | 
| right | Amount of additional space right of the widget. | 
| bottom | Amount of additional space below the widget. | 
| left | Amount of additional space left of the widget. | 
Definition at line 149 of file widget_type.h.
References padding_bottom, padding_left, padding_right, and padding_top.
| 
 | pure virtual | 
Compute smallest size needed by the widget.
The smallest size of a widget is the smallest size that a widget needs to display itself properly. In addition, filling and resizing of the widget are computed. The function calls Window::UpdateWidgetSize for each leaf widget and background widget without child with a non-negative index.
| w | Window owning the widget. | 
| init_array | Initialize the w->nested_array. | 
Implemented in NWidgetSmallmapDisplay, NWidgetNewGRFDisplay, NWidgetToolbarContainer, NWidgetLeaf, NWidgetScrollbar, NWidgetViewport, NWidgetBackground, NWidgetSpacer, NWidgetMatrix, NWidgetVertical, NWidgetHorizontal, NWidgetStacked, and NWidgetServerListHeader.
Referenced by Window::InitializeData(), Window::ReInit(), NWidgetMatrix::SetupSmallestSize(), NWidgetBackground::SetupSmallestSize(), and NWidgetSmallmapDisplay::SetupSmallestSize().
| 
 | inlineprotected | 
Store size and position.
| sizing | Type of resizing to perform. | 
| x | Horizontal offset of the widget relative to the left edge of the window. | 
| y | Vertical offset of the widget relative to the top edge of the window. | 
| given_width | Width allocated to the widget. | 
| given_height | Height allocated to the widget. | 
Definition at line 218 of file widget_type.h.
References current_x, current_y, pos_x, pos_y, smallest_x, smallest_y, and ST_SMALLEST.
Referenced by NWidgetResizeBase::AssignSizePosition(), NWidgetStacked::AssignSizePosition(), NWidgetHorizontal::AssignSizePosition(), NWidgetVertical::AssignSizePosition(), and NWidgetBackground::AssignSizePosition().
 1.8.1.2
 1.8.1.2