dlangui.graphics.resources

This module contains resource management and drawables implementation.

imageCache is RAM cache of decoded images (as DrawBuf).

drawableCache is cache of Drawables.

Supports nine-patch PNG images in .9.png files (like in Android).

Supports state drawables using XML files similar to ones in Android.

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Members

Aliases

DrawableRef alias DrawableRef = Ref!Drawable: Undocumented in source.

Classes

Drawable class Drawable: Base class for all drawables
DrawableCache class DrawableCache: Undocumented in source.
EmptyDrawable class EmptyDrawable: Undocumented in source.
FrameDrawable class FrameDrawable: solid borders (may be of different width) and, optionally, solid inner area
ImageCache class ImageCache: decoded raster images cache (png, jpeg) -- access by filenames
ImageDrawable class ImageDrawable: Undocumented in source.
OpenGLDrawable class OpenGLDrawable: Custom drawing inside openGL
SolidFillDrawable class SolidFillDrawable: Undocumented in source.
StateDrawable class StateDrawable: Drawable which is drawn depending on state (see http://developer.android.com/guide/topics/resources/drawable-resource.html#StateList)
TextDrawable class TextDrawable: Text image drawable. Resource file extension: .tim Image format is JSON based. Sample: { text: [ "╔═╗", "║ ║", "╚═╝"], backgroundColor: [0x000080], textColor: [0xFF0000], ninepatch: [1,1,1,1] }

Enums

DimensionUnits enum DimensionUnits: Undocumented in source.

Functions

attrValue string attrValue(Element item, string attrname, string attrname2): Undocumented in source. Be warned that the author may not have intended to support it.
attrValue string attrValue(string[string] attr, string attrname, string attrname2): Undocumented in source. Be warned that the author may not have intended to support it.
embedResource EmbeddedResource[] embedResource(): Undocumented in source. Be warned that the author may not have intended to support it.
embedResources EmbeddedResource[] embedResources(): embed all resources from list
embedResourcesFromList EmbeddedResource[] embedResourcesFromList(): embed all resources from list
embedStandardDlangUIResources void embedStandardDlangUIResources(): Undocumented in source. Be warned that the author may not have intended to support it.
extractStateFlag void extractStateFlag(string[string] attr, string attrName, string attrName2, State state, uint stateMask, uint stateValue): Undocumented in source. Be warned that the author may not have intended to support it.
extractStateFlags void extractStateFlags(string[string] attr, uint stateMask, uint stateValue): converts XML attribute name to State (see http://developer.android.com/guide/topics/resources/drawable-resource.html#StateList)
loadResourceBytes immutable(ubyte[]) loadResourceBytes(string filename): load resource bytes from embedded resource or file
loadTextResource string loadTextResource(string resourceId): Undocumented in source. Be warned that the author may not have intended to support it.
splitLines string[] splitLines(string s): split string into lines, autodetect line endings

Properties

drawableCache DrawableCache drawableCache [@property getter]: drawable cache singleton
drawableCache void drawableCache [@property getter]: drawable cache singleton
imageCache ImageCache imageCache [@property getter]: image cache singleton
imageCache void imageCache [@property getter]: image cache singleton

Static functions

createColorDrawable Drawable createColorDrawable(string s): decode solid color / gradient / frame drawable from string like #AARRGGBB, e.g. #5599AA
createTextDrawable Drawable createTextDrawable(string s): Sample format: { text: [ "╔═╗", "║ ║", "╚═╝"], backgroundColor: [0x000080], // put more values for individual colors of cells textColor: [0xFF0000], // put more values for individual colors of cells ninepatch: [1,1,1,1] }
decodeDimension uint decodeDimension(string s): decode size string, e.g. 1px or 2 or 3pt

Static variables

_drawableCache DrawableCache _drawableCache;: Undocumented in source.
_imageCache ImageCache _imageCache;: Undocumented in source.
embeddedResourceList EmbeddedResourceList embeddedResourceList;: Undocumented in source.

Structs

EmbeddedResource struct EmbeddedResource: Undocumented in source.
EmbeddedResourceList struct EmbeddedResourceList: Undocumented in source.

Variables

EMBEDDED_RESOURCE_PREFIX string EMBEDDED_RESOURCE_PREFIX;: filename prefix for embedded resources

Detailed Description

When your application uses custom resources, you can embed resources into executable and/or specify external resource directory(s).

To embed resources, put them into views/res directory, and create file views/resources.list with list of all files to embed.

Use following code to embed resources:

/// entry point for dlangui based application
extern (C) int UIAppMain(string[] args) {

    // embed non-standard resources listed in views/resources.list into executable
    embeddedResourceList.addResources(embedResourcesFromList!("resources.list")());

    ...

Resource list resources.list file may look similar to following:

res/i18n/en.ini
res/i18n/ru.ini
res/mdpi/cr3_logo.png
res/mdpi/document-open.png
res/mdpi/document-properties.png
res/mdpi/document-save.png
res/mdpi/edit-copy.png
res/mdpi/edit-paste.png
res/mdpi/edit-undo.png
res/mdpi/tx_fabric.jpg
res/theme_custom1.xml

As well you can specify list of external directories to get resources from.

/// entry point for dlangui based application
extern (C) int UIAppMain(string[] args) {
    // resource directory search paths
    string[] resourceDirs = [
        appendPath(exePath, "../../../res/"),   // for Visual D and DUB builds
        appendPath(exePath, "../../../res/mdpi/"),   // for Visual D and DUB builds
        appendPath(exePath, "../../../../res/"),// for Mono-D builds
        appendPath(exePath, "../../../../res/mdpi/"),// for Mono-D builds
        appendPath(exePath, "res/"), // when res dir is located at the same directory as executable
        appendPath(exePath, "../res/"), // when res dir is located at project directory
        appendPath(exePath, "../../res/"), // when res dir is located at the same directory as executable
        appendPath(exePath, "res/mdpi/"), // when res dir is located at the same directory as executable
        appendPath(exePath, "../res/mdpi/"), // when res dir is located at project directory
        appendPath(exePath, "../../res/mdpi/") // when res dir is located at the same directory as executable
    ];
    // setup resource directories - will use only existing directories
    Platform.instance.resourceDirs = resourceDirs;

When same file exists in both embedded and external resources, one from external resource directory will be used - it's useful for developing and testing of resources.

Synopsis:

import dlangui.graphics.resources;

// embed non-standard resources listed in views/resources.list into executable
embeddedResourceList.addResources(embedResourcesFromList!("resources.list")());