wxErlang

Reference Manual

Version 2.0

Table of Contents

wxImageList

Module

wxImageList

Module Summary

Functions for wxImageList class

Description

A wxImageList contains a list of images, which are stored in an unspecified form. Images can have masks for transparent drawing, and can be made from a variety of sources including bitmaps and icons.

wxImageList is used principally in conjunction with wxTreeCtrl and wxListCtrl classes.

See: wxTreeCtrl, wxListCtrl

wxWidgets docs: wxImageList

Data Types

wxImageList() = wx:wx_object()

Exports

new() -> wxImageList()

Default ctor.

new(Width, Height) -> wxImageList()

Types

Width = Height = integer()
new(Width, Height, Options :: [Option]) -> wxImageList()

Types

Width = Height = integer()
Option = {mask, boolean()} | {initialCount, integer()}

Constructor specifying the image size, whether image masks should be created, and the initial size of the list.

See: create/4

add(This, Icon) -> integer()

Types

This = wxImageList()
Icon = wxIcon:wxIcon() | wxBitmap:wxBitmap()

Adds a new image using an icon.

Return: The new zero-based image index.

Remark: The original bitmap or icon is not affected by the add/3 operation, and can be deleted afterwards. If the bitmap is wider than the images in the list, then the bitmap will automatically be split into smaller images, each matching the dimensions of the image list. This does not apply when adding icons.

Only for:wxmsw,wxosx

add(This, Bitmap, MaskColour) -> integer()
add(This, Bitmap, Mask) -> integer()

Types

This = wxImageList()
Bitmap = Mask = wxBitmap:wxBitmap()

Adds a new image or images using a bitmap and optional mask bitmap.

Return: The new zero-based image index.

Remark: The original bitmap or icon is not affected by the add/3 operation, and can be deleted afterwards. If the bitmap is wider than the images in the list, then the bitmap will automatically be split into smaller images, each matching the dimensions of the image list. This does not apply when adding icons.

create(This, Width, Height) -> boolean()

Types

This = wxImageList()
Width = Height = integer()
create(This, Width, Height, Options :: [Option]) -> boolean()

Types

This = wxImageList()
Width = Height = integer()
Option = {mask, boolean()} | {initialCount, integer()}

Initializes the list.

See new/3 for details.

draw(This, Index, Dc, X, Y) -> boolean()

Types

This = wxImageList()
Index = integer()
Dc = wxDC:wxDC()
X = Y = integer()
draw(This, Index, Dc, X, Y, Options :: [Option]) -> boolean()

Types

This = wxImageList()
Index = integer()
Dc = wxDC:wxDC()
X = Y = integer()
Option = {flags, integer()} | {solidBackground, boolean()}

Draws a specified image onto a device context.

getBitmap(This, Index) -> wxBitmap:wxBitmap()

Types

This = wxImageList()
Index = integer()

Returns the bitmap corresponding to the given index.

getIcon(This, Index) -> wxIcon:wxIcon()

Types

This = wxImageList()
Index = integer()

Returns the icon corresponding to the given index.

getImageCount(This) -> integer()

Types

This = wxImageList()

Returns the number of images in the list.

getSize(This, Index) -> Result

Types

Result =
    {Res :: boolean(), Width :: integer(), Height :: integer()}
This = wxImageList()
Index = integer()

Retrieves the size of the images in the list.

Currently, the index parameter is ignored as all images in the list have the same size.

Return: true if the function succeeded, false if it failed (for example, if the image list was not yet initialized).

remove(This, Index) -> boolean()

Types

This = wxImageList()
Index = integer()

Removes the image at the given position.

removeAll(This) -> boolean()

Types

This = wxImageList()

Removes all the images in the list.

replace(This, Index, Icon) -> boolean()

Types

This = wxImageList()
Index = integer()
Icon = wxIcon:wxIcon() | wxBitmap:wxBitmap()

Replaces the existing image with the new image.

Return: true if the replacement was successful, false otherwise.

Remark: The original bitmap or icon is not affected by the replace/4 operation, and can be deleted afterwards.

Only for:wxmsw,wxosx

replace(This, Index, Bitmap, Mask) -> boolean()

Types

This = wxImageList()
Index = integer()
Bitmap = Mask = wxBitmap:wxBitmap()

Replaces the existing image with the new image.

Windows only.

Return: true if the replacement was successful, false otherwise.

Remark: The original bitmap or icon is not affected by the replace/4 operation, and can be deleted afterwards.

destroy(This :: wxImageList()) -> ok

Destroys the object.

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