zoom_func.h File Reference

Functions related to zooming. More...

#include "zoom_type.h"

Go to the source code of this file.

Functions
int	ScaleByZoom (int value, ZoomLevel zoom)
	Scale by zoom level, usually shift left (when zoom > ZOOM_LVL_MIN) When shifting right, value is rounded up.
int	UnScaleByZoom (int value, ZoomLevel zoom)
	Scale by zoom level, usually shift right (when zoom > ZOOM_LVL_MIN) When shifting right, value is rounded up.
int	AdjustByZoom (int value, int zoom)
	Adjust by zoom level; zoom < 0 shifts right, zoom >= 0 shifts left.
int	ScaleByZoomLower (int value, ZoomLevel zoom)
	Scale by zoom level, usually shift left (when zoom > ZOOM_LVL_MIN)
int	UnScaleByZoomLower (int value, ZoomLevel zoom)
	Scale by zoom level, usually shift right (when zoom > ZOOM_LVL_MIN)
int	UnScaleGUI (int value)
	Short-hand to apply GUI zoom level.
ZoomLevel	ScaleZoomGUI (ZoomLevel value)
	Scale zoom level relative to GUI zoom.
ZoomLevel	UnScaleZoomGUI (ZoomLevel value)
	UnScale zoom level relative to GUI zoom.
int	ScaleSpriteTrad (int value)
	Scale traditional pixel dimensions to GUI zoom level, for drawing sprites.
int	ScaleGUITrad (int value)
	Scale traditional pixel dimensions to GUI zoom level.

Detailed Description

Functions related to zooming.

Definition in file zoom_func.h.

Function Documentation

AdjustByZoom()

int AdjustByZoom ( int  value, int  zoom  )

inline

Adjust by zoom level; zoom < 0 shifts right, zoom >= 0 shifts left.

Parameters

value	value to shift
zoom	zoom level to shift to

Returns

shifted value

Definition at line 45 of file zoom_func.h.

References ScaleByZoom(), and UnScaleByZoom().

ScaleByZoom()

int ScaleByZoom ( int  value, ZoomLevel  zoom  )

inline

Scale by zoom level, usually shift left (when zoom > ZOOM_LVL_MIN) When shifting right, value is rounded up.

Parameters

value	value to shift
zoom	zoom level to shift to

Returns

shifted value

Definition at line 22 of file zoom_func.h.

Referenced by AdjustByZoom(), CheckClickOnVehicle(), CheckClickOnViewportSign(), CheckClickOnViewportSign(), Blitter_32bppSimple::Draw(), Blitter_8bppSimple::Draw(), GfxBlitter(), HandleAutoscroll(), InitializeWindowViewport(), LargeWorldCallback(), ViewportSign::MarkDirty(), SpriteAlignerWindow::OnClick(), MainWindow::OnScroll(), ExtraViewportWindow::OnScroll(), TranslateXYToTileCoord(), NWidgetViewport::UpdateViewportCoordinates(), and ViewportAddString().

ScaleByZoomLower()

int ScaleByZoomLower ( int  value, ZoomLevel  zoom  )

inline

Scale by zoom level, usually shift left (when zoom > ZOOM_LVL_MIN)

Parameters

value	value to shift
zoom	zoom level to shift to

Returns

shifted value

Definition at line 56 of file zoom_func.h.

ScaleGUITrad()

int ScaleGUITrad ( int  value )

inline

Scale traditional pixel dimensions to GUI zoom level.

Parameters

value

Pixel amount at ZOOM_BASE (traditional "normal" interface size).

Returns

Pixel amount at ZOOM_LVL_GUI (current interface size).

Definition at line 117 of file zoom_func.h.

References _gui_scale.

ScaleSpriteTrad()

int ScaleSpriteTrad ( int  value )

inline

Scale traditional pixel dimensions to GUI zoom level, for drawing sprites.

Parameters

value

Pixel amount at ZOOM_BASE (traditional "normal" interface size).

Returns

Pixel amount at ZOOM_LVL_GUI (current interface size).

Definition at line 107 of file zoom_func.h.

References UnScaleGUI().

Referenced by DrawAircraftImage(), DrawCargoIcons(), DrawCloseBox(), DrawCommonTileSeqInGUI(), DrawEngineList(), DrawRoadVehDetails(), DrawRoadVehImage(), DrawShipImage(), DrawTrainDetails(), DrawTrainImage(), DepotWindow::DrawVehicleInDepot(), DepotWindow::DrawWidget(), BuildDocksDepotWindow::DrawWidget(), BuildObjectWindow::DrawWidget(), PickerWindow::DrawWidget(), BuildRailStationWindow::DrawWidget(), BuildRailDepotWindow::DrawWidget(), BuildRoadDepotWindow::DrawWidget(), BuildRoadStationWindow::DrawWidget(), RefitWindow::DrawWidget(), FallbackParagraphLayout::FallbackVisualRun::FallbackVisualRun(), RoadVehicle::GetDisplayImageWidth(), Train::GetDisplayImageWidth(), GetTrainDetailsWndVScroll(), GetTrainSpriteSize(), HighlightDragPosition(), DepotWindow::OnPaint(), EndGameWindow::OnPaint(), HighScoreWindow::OnPaint(), SetMouseCursorVehicle(), ICURun::Shape(), UniscribeShapeRun(), DepotWindow::UpdateWidgetSize(), and EnginePreviewWindow::UpdateWidgetSize().

ScaleZoomGUI()

ZoomLevel ScaleZoomGUI ( ZoomLevel  value )

inline

Scale zoom level relative to GUI zoom.

Parameters

value

zoom level to scale

Returns

scaled zoom level

Definition at line 87 of file zoom_func.h.

References ZOOM_LVL_MAX, ZOOM_LVL_MIN, and ZOOM_LVL_NORMAL.

Referenced by WaypointWindow::WaypointWindow().

UnScaleByZoom()

int UnScaleByZoom ( int  value, ZoomLevel  zoom  )

inline

Scale by zoom level, usually shift right (when zoom > ZOOM_LVL_MIN) When shifting right, value is rounded up.

Parameters

value	value to shift
zoom	zoom level to shift to

Returns

shifted value

Definition at line 34 of file zoom_func.h.

Referenced by AdjustByZoom(), OpenGLBackend::DrawMouseCursor(), SpriteAlignerWindow::DrawWidget(), GetSpriteSize(), GfxBlitter(), MarkViewportDirty(), ScaleFontTrad(), SpriteAlignerWindow::SetStringParameters(), SetupScreenshotViewport(), UnScaleGUI(), and ViewportDrawDirtyBlocks().

UnScaleByZoomLower()

int UnScaleByZoomLower ( int  value, ZoomLevel  zoom  )

inline

Scale by zoom level, usually shift right (when zoom > ZOOM_LVL_MIN)

Parameters

value	value to shift
zoom	zoom level to shift to

Returns

shifted value

Definition at line 67 of file zoom_func.h.

Referenced by OpenGLSprite::GetSize(), GfxBlitter(), and MarkViewportDirty().

UnScaleGUI()

int UnScaleGUI ( int  value )

inline

Short-hand to apply GUI zoom level.

Parameters

value

Pixel amount at ZOOM_LVL_MIN (full zoom in).

Returns

Pixel amount at ZOOM_LVL_GUI (current interface size).

Definition at line 77 of file zoom_func.h.

References UnScaleByZoom().

Referenced by DrawAircraftImage(), DrawCommonTileSeqInGUI(), DrawHouseInGUI(), DrawRoadVehEngine(), DrawShipImage(), GetAircraftSpriteSize(), GetRoadVehSpriteSize(), GetShipSpriteSize(), GetSingleVehicleWidth(), GetTrainSpriteSize(), ScaleSpriteTrad(), and UpdateCursorSize().

UnScaleZoomGUI()

ZoomLevel UnScaleZoomGUI ( ZoomLevel  value )

inline

UnScale zoom level relative to GUI zoom.

Parameters

value

zoom level to scale

Returns

un-scaled zoom level

Definition at line 97 of file zoom_func.h.

References ZOOM_LVL_MAX, ZOOM_LVL_MIN, and ZOOM_LVL_NORMAL.