123 lines
2.8 KiB
Go
123 lines
2.8 KiB
Go
package stone
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import "image"
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// Application represents an application.
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type Application struct {
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DamageBuffer
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title string
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icons []image.Image
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backend Backend
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config Config
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callbackManager CallbackManager
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}
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// Run initializes the application, starts it, and then returns a channel that
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// broadcasts events. If no suitable backend can be found, an error is returned.
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func (application *Application) Run () (
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err error,
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) {
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// default values for certain parameters
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width, height := application.Size()
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if width < 1 { width = 80 }
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if height < 1 { height = 20 }
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application.DamageBuffer.SetSize(width, height)
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application.config.load()
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application.backend, err = instantiateBackend(application)
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if err != nil { return }
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application.backend.Run()
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return
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}
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func (application *Application) OnQuit (
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onQuit func (),
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) {
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application.callbackManager.onQuit = onQuit
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}
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func (application *Application) OnPress (
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onPress func (button Button),
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) {
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application.callbackManager.onPress = onPress
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}
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func (application *Application) OnRelease (
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onRelease func (button Button),
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) {
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application.callbackManager.onRelease = onRelease
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}
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func (application *Application) OnResize (
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onResize func (),
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) {
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application.callbackManager.onResize = onResize
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}
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func (application *Application) OnMouseMove (
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onMouseMove func (x, y int),
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) {
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application.callbackManager.onMouseMove = onMouseMove
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}
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func (application *Application) OnScroll (
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onScroll func (x, y int),
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) {
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application.callbackManager.onScroll = onScroll
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}
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func (application *Application) OnStart (
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onStart func (),
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) {
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application.callbackManager.onStart = onStart
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}
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// Draw "commits" changes made in the buffer to the display.
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func (application *Application) Draw () {
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application.backend.Draw()
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}
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// SetTitle sets the application's title. If in a window, it will appear as the
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// window's name.
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func (application *Application) SetTitle (title string) (err error) {
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application.title = title
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if application.backend != nil {
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err = application.backend.SetTitle(title)
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}
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return
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}
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// Title returns the application's title.
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func (application *Application) Title () (title string) {
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title = application.title
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return
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}
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// SetIcon takes in a list of different sizes of an icon, and sets it as the
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// application's icon.
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func (application *Application) SetIcon (sizes []image.Image) (err error) {
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application.icons = sizes
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if application.backend != nil {
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err = application.backend.SetIcon(sizes)
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}
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return
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}
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// Icon returns all available sizes of the application's icon. If there is no
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// icon, nil is returned.
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func (application *Application) Icon () (sizes []image.Image) {
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sizes = application.icons
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return
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}
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// Config returns a pointer to the application's configuration.
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func (application *Application) Config () (config *Config) {
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config = &application.config
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return
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}
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