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(svn r15743) -Codechange: move the definitions of some fake squirrel types to their own file.
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/** @file window_gui.h Functions, definitions and such used only by the GUI. */
#ifndef WINDOW_GUI_H
#define WINDOW_GUI_H
#include "core/geometry_type.hpp"
#include "vehicle_type.h"
#include "viewport_type.h"
#include "company_type.h"
#include "core/alloc_type.hpp"
#include "window_type.h"
#include "tile_type.h"
#include "widget_type.h"
/**
* Flags to describe the look of the frame
*/
enum FrameFlags {
FR_NONE = 0,
FR_TRANSPARENT = 1 << 0, ///< Makes the background transparent if set
FR_BORDERONLY = 1 << 4, ///< Draw border only, no background
FR_LOWERED = 1 << 5, ///< If set the frame is lowered and the background colour brighter (ie. buttons when pressed)
FR_DARKENED = 1 << 6, ///< If set the background is darker, allows for lowered frames with normal background colour when used with FR_LOWERED (ie. dropdown boxes)
};
DECLARE_ENUM_AS_BIT_SET(FrameFlags);
/* wiget.cpp */
void DrawFrameRect(int left, int top, int right, int bottom, Colours colour, FrameFlags flags);
/* window.cpp */
extern Window *_z_front_window;
extern Window *_z_back_window;
extern Window *_focused_window;
/**
* High level window description
*/
struct WindowDesc : ZeroedMemoryAllocator {
WindowDesc(int16 left, int16 top, int16 min_width, int16 min_height, int16 def_width, int16 def_height,
WindowClass window_class, WindowClass parent_class, uint32 flags, const Widget *widgets);
int16 left; ///< Prefered x position of left edge of the window, @see WindowDefaultPosition()
int16 top; ///< Prefered y position of the top of the window, @see WindowDefaultPosition()
int16 minimum_width; ///< Minimal width of the window
int16 minimum_height; ///< Minimal height of the window
int16 default_width; ///< Prefered initial width of the window
int16 default_height; ///< Prefered initial height of the window
WindowClass cls; ///< Class of the window, @see WindowClass
WindowClass parent_cls; ///< Class of the parent window, @see WindowClass
uint32 flags; ///< Flags, @see WindowDefaultFlags
const Widget *widgets; ///< List of widgets with their position and size for the window
};
/**
* Window default widget/window handling flags
*/
enum WindowDefaultFlag {
WDF_STD_TOOLTIPS = 1 << 0, ///< use standard routine when displaying tooltips
WDF_DEF_WIDGET = 1 << 1, ///< Default widget control for some widgets in the on click event, @see DispatchLeftClickEvent()
WDF_STD_BTN = 1 << 2, ///< Default handling for close and titlebar widgets (widget no 0 and 1)
WDF_CONSTRUCTION = 1 << 3, ///< This window is used for construction; close it whenever changing company.
WDF_UNCLICK_BUTTONS = 1 << 4, ///< Unclick buttons when the window event times out
WDF_STICKY_BUTTON = 1 << 5, ///< Set window to sticky mode; they are not closed unless closed with 'X' (widget 2)
WDF_RESIZABLE = 1 << 6, ///< Window can be resized
WDF_MODAL = 1 << 7, ///< The window is a modal child of some other window, meaning the parent is 'inactive'
WDF_NO_FOCUS = 1 << 8, ///< This window won't get focus/make any other window lose focus when click
};
/**
* Special values for 'left' and 'top' to cause a specific placement
*/
enum WindowDefaultPosition {
WDP_AUTO = -1, ///< Find a place automatically
WDP_CENTER = -2, ///< Center the window (left/right or top/bottom)
WDP_ALIGN_TBR = -3, ///< Align the right side of the window with the right side of the main toolbar
WDP_ALIGN_TBL = -4, ///< Align the left side of the window with the left side of the main toolbar
};
/**
* Scrollbar data structure
*/
struct Scrollbar {
uint16 count; ///< Number of elements in the list
uint16 cap; ///< Number of visible elements of the scroll bar
uint16 pos; ///< Index of first visible item of the list
};
/**
* Data structure for resizing a window
*/
struct ResizeInfo {
uint width; ///< Minimum allowed width of the window
uint height; ///< Minimum allowed height of the window
uint step_width; ///< Step-size of width resize changes
uint step_height; ///< Step-size of height resize changes
};
enum SortButtonState {
SBS_OFF,
SBS_DOWN,
SBS_UP,
};
/**
* Data structure for a window viewport
*/
struct ViewportData : ViewPort {
VehicleID follow_vehicle;
int32 scrollpos_x;
int32 scrollpos_y;
int32 dest_scrollpos_x;
int32 dest_scrollpos_y;
};
/**
* Data structure for an opened window
*/
struct Window : ZeroedMemoryAllocator {
/** State whether an event is handled or not */
enum EventState {
ES_HANDLED, ///< The passed event is handled
ES_NOT_HANDLED, ///< The passed event is not handled
};
protected:
void Initialize(int x, int y, int min_width, int min_height,
WindowClass cls, const Widget *widget, int window_number);
void FindWindowPlacementAndResize(int def_width, int def_height);
void FindWindowPlacementAndResize(const WindowDesc *desc);
public:
Window(int x, int y, int width, int height, WindowClass cls, const Widget *widget);
Window(const WindowDesc *desc, WindowNumber number = 0);
virtual ~Window();
/* Don't allow arrays; arrays of Windows are pointless as you need
* to destruct them all at the same time too, which is kinda hard. */
FORCEINLINE void *operator new[](size_t size) { NOT_REACHED(); }
/* Don't free the window directly; it corrupts the linked list when iterating */
FORCEINLINE void operator delete(void *ptr, size_t size) {}
uint16 flags4; ///< Window flags, @see WindowFlags
WindowClass window_class; ///< Window class
WindowNumber window_number; ///< Window number within the window class
int left; ///< x position of left edge of the window
int top; ///< y position of top edge of the window
int width; ///< width of the window (number of pixels to the right in x direction)
int height; ///< Height of the window (number of pixels down in y direction)
Scrollbar hscroll; ///< Horizontal scroll bar
Scrollbar vscroll; ///< First vertical scroll bar
Scrollbar vscroll2; ///< Second vertical scroll bar
ResizeInfo resize; ///< Resize information
Owner owner; ///< The owner of the content shown in this window. Company colour is acquired from this variable.
ViewportData *viewport;///< Pointer to viewport data, if present
Widget *widget; ///< Widgets of the window
uint widget_count; ///< Number of widgets of the window
uint32 desc_flags; ///< Window/widgets default flags setting, @see WindowDefaultFlag
const Widget *focused_widget; ///< Currently focused widget or NULL, if no widget has focus
Window *parent; ///< Parent window
Window *z_front; ///< The window in front of us in z-order
Window *z_back; ///< The window behind us in z-order
/**
* Sets the enabled/disabled status of a widget.
* By default, widgets are enabled.
* On certain conditions, they have to be disabled.
* @param widget_index index of this widget in the window
* @param disab_stat status to use ie: disabled = true, enabled = false
*/
inline void SetWidgetDisabledState(byte widget_index, bool disab_stat)
{
assert(widget_index < this->widget_count);
SB(this->widget[widget_index].display_flags, WIDG_DISABLED, 1, !!disab_stat);
}
/**
* Sets a widget to disabled.
* @param widget_index index of this widget in the window
*/
inline void DisableWidget(byte widget_index)
{
SetWidgetDisabledState(widget_index, true);
}
/**
* Sets a widget to Enabled.
* @param widget_index index of this widget in the window
*/
inline void EnableWidget(byte widget_index)
{
SetWidgetDisabledState(widget_index, false);
}
/**
* Gets the enabled/disabled status of a widget.
* @param widget_index index of this widget in the window
* @return status of the widget ie: disabled = true, enabled = false
*/
inline bool IsWidgetDisabled(byte widget_index) const
{
assert(widget_index < this->widget_count);
return HasBit(this->widget[widget_index].display_flags, WIDG_DISABLED);
}
/**
* Sets the hidden/shown status of a widget.
* By default, widgets are visible.
* On certain conditions, they have to be hidden.
* @param widget_index index of this widget in the window
* @param hidden_stat status to use ie. hidden = true, visible = false
*/
inline void SetWidgetHiddenState(byte widget_index, bool hidden_stat)
{
assert(widget_index < this->widget_count);
SB(this->widget[widget_index].display_flags, WIDG_HIDDEN, 1, !!hidden_stat);
}
/**
* Sets a widget hidden.
* @param widget_index index of this widget in the window
*/
inline void HideWidget(byte widget_index)
{
SetWidgetHiddenState(widget_index, true);
}
/**
* Sets a widget visible.
* @param widget_index index of this widget in the window
*/
inline void ShowWidget(byte widget_index)
{
SetWidgetHiddenState(widget_index, false);
}
/**
* Gets the visibility of a widget.
* @param widget_index index of this widget in the window
* @return status of the widget ie: hidden = true, visible = false
*/
inline bool IsWidgetHidden(byte widget_index) const
{
assert(widget_index < this->widget_count);
return HasBit(this->widget[widget_index].display_flags, WIDG_HIDDEN);
}
/**
* Set focus within this window to given widget. The function however don't
* change which window that has focus.
* @param widget_index : index of the widget in the window to set focus to
*/
inline void SetFocusedWidget(byte widget_index)
{
if (widget_index < this->widget_count) {
/* Repaint the widget that loss focus. A focused edit box may else leave the caret left on the screen */
if (this->focused_widget && this->focused_widget - this->widget != widget_index) {
this->InvalidateWidget(this->focused_widget - this->widget);
}
this->focused_widget = &this->widget[widget_index];
}
}
/**
* Check if given widget is focused within this window
* @param widget_index : index of the widget in the window to check
* @return true if given widget is the focused window in this window
*/
inline bool IsWidgetFocused(byte widget_index) const
{
return this->focused_widget == &this->widget[widget_index];
}
/**
* Check if given widget has user input focus. This means that both the window
* has focus and that the given widget has focus within the window.
* @param widget_index : index of the widget in the window to check
* @return true if given widget is the focused window in this window and this window has focus
*/
inline bool IsWidgetGloballyFocused(byte widget_index) const
{
return _focused_window == this && IsWidgetFocused(widget_index);
}
/**
* Sets the lowered/raised status of a widget.
* @param widget_index index of this widget in the window
* @param lowered_stat status to use ie: lowered = true, raised = false
*/
inline void SetWidgetLoweredState(byte widget_index, bool lowered_stat)
{
assert(widget_index < this->widget_count);
SB(this->widget[widget_index].display_flags, WIDG_LOWERED, 1, !!lowered_stat);
}
/**
* Invert the lowered/raised status of a widget.
* @param widget_index index of this widget in the window
*/
inline void ToggleWidgetLoweredState(byte widget_index)
{
assert(widget_index < this->widget_count);
ToggleBit(this->widget[widget_index].display_flags, WIDG_LOWERED);
}
/**
* Marks a widget as lowered.
* @param widget_index index of this widget in the window
*/
inline void LowerWidget(byte widget_index)
{
SetWidgetLoweredState(widget_index, true);
}
/**
* Marks a widget as raised.
* @param widget_index index of this widget in the window
*/
inline void RaiseWidget(byte widget_index)
{
SetWidgetLoweredState(widget_index, false);
}
/**
* Gets the lowered state of a widget.
* @param widget_index index of this widget in the window
* @return status of the widget ie: lowered = true, raised= false
*/
inline bool IsWidgetLowered(byte widget_index) const
{
assert(widget_index < this->widget_count);
return HasBit(this->widget[widget_index].display_flags, WIDG_LOWERED);
}
/**
* Align widgets a and b next to each other.
* @param widget_index_a the left widget
* @param widget_index_b the right widget (fixed)
*/
inline void AlignWidgetRight(byte widget_index_a, byte widget_index_b)
{
assert(widget_index_a < this->widget_count);
assert(widget_index_b < this->widget_count);
int w = this->widget[widget_index_a].right - this->widget[widget_index_a].left;
this->widget[widget_index_a].right = this->widget[widget_index_b].left - 1;
this->widget[widget_index_a].left = this->widget[widget_index_a].right - w;
}
/**
* Get the width of a widget.
* @param widget_index the widget
* @return width of the widget
*/
inline int GetWidgetWidth(byte widget_index) const
{
assert(widget_index < this->widget_count);
return this->widget[widget_index].right - this->widget[widget_index].left + 1;
}
void HandleButtonClick(byte widget);
bool HasWidgetOfType(WidgetType widget_type) const;
void RaiseButtons();
void CDECL SetWidgetsDisabledState(bool disab_stat, int widgets, ...);
void CDECL SetWidgetsHiddenState(bool hidden_stat, int widgets, ...);
void CDECL SetWidgetsLoweredState(bool lowered_stat, int widgets, ...);
void InvalidateWidget(byte widget_index) const;
void DrawWidgets() const;
void DrawViewport() const;
void DrawSortButtonState(int widget, SortButtonState state) const;
void DeleteChildWindows() const;
void SetDirty() const;
/*** Event handling ***/
/**
* This window is currently being repainted.
*/
virtual void OnPaint() {}
/**
* Called when window gains focus
*/
virtual void OnFocus() {}
/**
* Called when window looses focus
*/
virtual void OnFocusLost() {}
/**
* A key has been pressed.
* @param key the Unicode value of the key.
* @param keycode the untranslated key code including shift state.
* @return ES_HANDLED if the key press has been handled and no other
* window should receive the event.
*/
virtual EventState OnKeyPress(uint16 key, uint16 keycode) { return ES_NOT_HANDLED; }
/**
* The state of the control key has changed
* @return ES_HANDLED if the change has been handled and no other
* window should receive the event.
*/
virtual EventState OnCTRLStateChange() { return ES_NOT_HANDLED; }
/**
* A click with the left mouse button has been made on the window.
* @param pt the point inside the window that has been clicked.
* @param widget the clicked widget.
*/
virtual void OnClick(Point pt, int widget) {}
/**
* A double click with the left mouse button has been made on the window.
* @param pt the point inside the window that has been clicked.
* @param widget the clicked widget.
*/
virtual void OnDoubleClick(Point pt, int widget) {}
/**
* A click with the right mouse button has been made on the window.
* @param pt the point inside the window that has been clicked.
* @param widget the clicked widget.
*/
virtual void OnRightClick(Point pt, int widget) {}
/**
* A dragged 'object' has been released.
* @param pt the point inside the window where the release took place.
* @param widget the widget where the release took place.
*/
virtual void OnDragDrop(Point pt, int widget) {}
/**
* Handle the request for (viewport) scrolling.
* @param delta the amount the viewport must be scrolled.
*/
virtual void OnScroll(Point delta) {}
/**
* The mouse is currently moving over the window or has just moved outside
* of the window. In the latter case pt is (-1, -1).
* @param pt the point inside the window that the mouse hovers over.
* @param widget the widget the mouse hovers over.
*/
virtual void OnMouseOver(Point pt, int widget) {}
/**
* The mouse wheel has been turned.
* @param wheel the amount of movement of the mouse wheel.
*/
virtual void OnMouseWheel(int wheel) {}
/**
* Called for every mouse loop run, which is at least once per (game) tick.
*/
virtual void OnMouseLoop() {}
/**
* Called once per (game) tick.
*/
virtual void OnTick() {}
/**
* Called once every 100 (game) ticks.
*/
virtual void OnHundredthTick() {}
/**
* Called when this window's timeout has been reached.
*/
virtual void OnTimeout() {}
/**
* Called when the window got resized.
* @param new_size the new size of the window.
* @param delta the amount of which the window size changed.
*/
virtual void OnResize(Point new_size, Point delta) {}
/**
* A dropdown option associated to this window has been selected.
* @param widget the widget (button) that the dropdown is associated with.
* @param index the element in the dropdown that is selected.
*/
virtual void OnDropdownSelect(int widget, int index) {}
/**
* The query window opened from this window has closed.
* @param str the new value of the string or NULL if the window
* was cancelled.
*/
virtual void OnQueryTextFinished(char *str) {}
/**
* Some data on this window has become invalid.
* @param data information about the changed data.
*/
virtual void OnInvalidateData(int data = 0) {}
/**
* The user clicked some place on the map when a tile highlight mode
* has been set.
* @param pt the exact point on the map that has been clicked.
* @param tile the tile on the map that has been clicked.
*/
virtual void OnPlaceObject(Point pt, TileIndex tile) {}
/**
* The user cancelled a tile highlight mode that has been set.
*/
virtual void OnPlaceObjectAbort() {}
/**
* The user is dragging over the map when the tile highlight mode
* has been set.
* @param select_method the method of selection (allowed directions)
* @param select_proc what will be created when the drag is over.
* @param pt the exact point on the map where the mouse is.
*/
virtual void OnPlaceDrag(ViewportPlaceMethod select_method, ViewportDragDropSelectionProcess select_proc, Point pt) {}
/**
* The user has dragged over the map when the tile highlight mode
* has been set.
* @param select_method the method of selection (allowed directions)
* @param select_proc what should be created.
* @param pt the exact point on the map where the mouse was released.
* @param start_tile the begin tile of the drag.
* @param end_tile the end tile of the drag.
*/
virtual void OnPlaceMouseUp(ViewportPlaceMethod select_method, ViewportDragDropSelectionProcess select_proc, Point pt, TileIndex start_tile, TileIndex end_tile) {}
/**
* The user moves over the map when a tile highlight mode has been set
* when the special mouse mode has been set to 'PRESIZE' mode. An
* example of this is the tile highlight for dock building.
* @param pt the exact point on the map where the mouse is.
* @param tile the tile on the map where the mouse is.
*/
virtual void OnPlacePresize(Point pt, TileIndex tile) {}
/*** End of the event handling ***/
};
/**
* Data structure for a window opened from a toolbar
*/
class PickerWindowBase : public Window {
public:
PickerWindowBase(const WindowDesc *desc, Window *parent) : Window(desc)
{
this->parent = parent;
};
virtual ~PickerWindowBase();
};
/**
* Window flags
*/
enum WindowFlags {
WF_TIMEOUT_TRIGGER = 1, ///< When the timeout should start triggering
WF_TIMEOUT_BEGIN = 7, ///< The initial value for the timeout
WF_TIMEOUT_MASK = 7, ///< Window timeout counter bit mask (3 bits)
WF_DRAGGING = 1 << 3, ///< Window is being dragged
WF_SCROLL_UP = 1 << 4, ///< Upper scroll button has been pressed, @see ScrollbarClickHandler()
WF_SCROLL_DOWN = 1 << 5, ///< Lower scroll button has been pressed, @see ScrollbarClickHandler()
WF_SCROLL_MIDDLE = 1 << 6, ///< Scrollbar scrolling, @see ScrollbarClickHandler()
WF_HSCROLL = 1 << 7,
WF_SIZING = 1 << 8, ///< Window is being resized.
WF_STICKY = 1 << 9, ///< Window is made sticky by user
WF_DISABLE_VP_SCROLL = 1 << 10, ///< Window does not do autoscroll, @see HandleAutoscroll()
WF_WHITE_BORDER_ONE = 1 << 11,
WF_WHITE_BORDER_MASK = 1 << 12 | WF_WHITE_BORDER_ONE,
WF_SCROLL2 = 1 << 13,
};
Window *BringWindowToFrontById(WindowClass cls, WindowNumber number);
Window *FindWindowFromPt(int x, int y);
/**
* Open a new window.
* @param desc The pointer to the WindowDesc to be created
* @param window_number the window number of the new window
* @return see Window pointer of the newly created window
*/
template <typename Wcls>
Wcls *AllocateWindowDescFront(const WindowDesc *desc, int window_number)
{
if (BringWindowToFrontById(desc->cls, window_number)) return NULL;
return new Wcls(desc, window_number);
}
void RelocateAllWindows(int neww, int newh);
/* misc_gui.cpp */
void GuiShowTooltips(StringID str, uint paramcount = 0, const uint64 params[] = NULL, bool use_left_mouse_button = false);
/* widget.cpp */
int GetWidgetFromPos(const Window *w, int x, int y);
/** Iterate over all windows */
#define FOR_ALL_WINDOWS_FROM_BACK_FROM(w, start) for (w = start; w != NULL; w = w->z_front) if (w->window_class != WC_INVALID)
#define FOR_ALL_WINDOWS_FROM_FRONT_FROM(w, start) for (w = start; w != NULL; w = w->z_back) if (w->window_class != WC_INVALID)
#define FOR_ALL_WINDOWS_FROM_BACK(w) FOR_ALL_WINDOWS_FROM_BACK_FROM(w, _z_back_window)
#define FOR_ALL_WINDOWS_FROM_FRONT(w) FOR_ALL_WINDOWS_FROM_FRONT_FROM(w, _z_front_window)
extern Point _cursorpos_drag_start;
extern int _scrollbar_start_pos;
extern int _scrollbar_size;
extern byte _scroller_click_timeout;
extern bool _scrolling_scrollbar;
extern bool _scrolling_viewport;
extern byte _special_mouse_mode;
enum SpecialMouseMode {
WSM_NONE = 0,
WSM_DRAGDROP = 1,
WSM_SIZING = 2,
WSM_PRESIZE = 3,
};
Window *GetCallbackWnd();
void SetFocusedWindow(Window *w);
const Widget *GetGloballyFocusedWidget();
bool EditBoxInGlobalFocus();
void ScrollbarClickHandler(Window *w, const Widget *wi, int x, int y);
void ResizeButtons(Window *w, byte left, byte right);
void ResizeWindowForWidget(Window *w, uint widget, int delta_x, int delta_y);
void SetVScrollCount(Window *w, int num);
void SetVScroll2Count(Window *w, int num);
void SetHScrollCount(Window *w, int num);
#endif /* WINDOW_GUI_H */
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