Ejemplo de uso de FromUrl

 Una de las cosas que nos pasa siempre a los novatos es comprender en que situación se puede aplicar un código. Este es el caso de FromUrl que es para decodificar una url, que no es mas ni menos que cambiar el formato de un texto a otro.

 En este ejemplo arrastraremos un sin fin de archivos y el sistema nos da una cadena con caracteres raros y otros innecesarios.

Ejemplo de la info que da el sistema al arrastrar un archivo .mp3 obtenida mediante Drag.Data en el evento Drop:

file:///home/user10/Escritorio/Whitney%20Houston%20-%20I%20Have%20Nothing%20(Official%20Video).mp3

-28:-60:70:70

después del proceso:

/home/user10/Escritorio/Whitney Houston - I Have Nothing (Official Video).mp3

 
http://gambaswiki.org/wiki/lang/fromurl?l=es&nl

Necesario tener tildado componente gb.desktop para poder usar Desktop.Open()

' gambas class file

'by postapase
'https://novatocodegambas.blogspot.com.uy/
'Ejemplo de FromUrl

Public Sub Form_Drop()

Dim divide As New String[]
Dim Ruta As String

TextArea1.Text = Drag.Data

divide = Split(Drag.Data, "\r\n")

Ruta = String.Right(FromUrl$(divide[0]), -7)

TextBox1.Text = Ruta



 If chkAuto.Value Then Desktop.Open(Ruta)

End

Descargar de DropBox: FromUrl-0.0.1.tar.gz

Une

Idea básica para armar un programa de este tipo.
Observalo en youtube:

' gambas class file

Public Cantidad_Sprites As Picture[]
Public XpictureBox As PictureBox
Public TagOrdenado As String[]
Public Repeticiones As Integer = 200
Public Intentos As Integer

Public PICactual As Picture
Public pbActual As PictureBox

Public Sub Form_Open()

Label1.Text = "by postapase v. " & Application.Version

ReiniciarVariables()

SepararImagenes("casa.jpeg", 3, 3)

End

Public Sub SepararImagenes(path As String, filas As Integer, columnas As Integer)
'subrutina extraida y modificada del ejemplo de Julio 1945

Dim i As Image
Dim fila As Integer
Dim columna As Integer
Dim imagenAncho As Integer
Dim imagenLargo As Integer
Dim fichero As Picture
Dim contador As Integer = 1
Dim ruta As String
Dim a As Integer

i = Image.Load(path)
PictureBox1.Visible = False
PictureBox1.Picture = Picture.Load(path)

Cantidad_Sprites = New Picture[]

imagenAncho = i.w / columnas
imagenlargo = i.h / filas

For fila = 1 To filas
For columna = 1 To columnas

fichero = New Picture(imagenAncho, imagenLargo, Color.Transparent)
Paint.Begin(fichero)

Paint.DrawImage(i, 0, 0, imagenAncho, imagenLargo, 1, Rect((columna - 1) * imagenAncho, (fila - 1) * imagenLargo, imagenancho, imagenlargo))
Paint.Stroke()
Paint.Fill
Paint.End()
Wait 0.1
ruta = "/tmp/dibujo" & Str$(contador) & ".png"
fichero.Save(ruta)
Wait 0.1
Cantidad_Sprites.Add(fichero)
TagOrdenado.Add(ruta)

Select Case contador
Case 1
pb1.Tag = ruta
Case 2
pb2.Tag = ruta
Case 3
pb3.Tag = ruta
Case 4
pb4.Tag = ruta
Case 5
pb5.Tag = ruta
Case 6
pb6.Tag = ruta
Case 7
pb7.Tag = ruta
Case 8
pb8.Tag = ruta
Case 9
pb9.Tag = ruta
End Select

contador += 1

Next
Next

For a = 1 To Repeticiones
Desordenar()
Next

Refrescar2()

End

Public Sub btnOtraImagen_Click()


Dialog.Path = User.Home
Dialog.Filter = ["*.png;*.jpg;*.jpeg;*.bmp", "Picture files"]

If Dialog.OpenFile() Then Return

Select Case File.Ext(Dialog.Path)
Case "png", "jpg", "jpeg", "bmp"
Case Else
Message.Error("Imagen no válida!")
Return
End Select

ReiniciarVariables()

SepararImagenes(Dialog.Path, 3, 3)

End

Public Sub parte2_Drag()

Print Last.Name
XpictureBox.Drag(XpictureBox.Picture)

End

Public Sub parte2_Drop()

Print Last.Name

End

Public Sub parte2_DblClick()

Print Last.Name

End

Public Sub pb9_MouseDrag()

Drag.Icon = pb9.Picture

If Mouse.Left Then
pb9.Drag(pb9.Tag)
Endif

End

Public Sub pb8_Drop()

Dim MiTag As String

MiTag = pb8.Tag

pb8.Picture = Picture.Load(Drag.Data)
pb8.Tag = Drag.Data

Drag.Source.Tag = MiTag
Refrescar()

End

Public Sub pb6_MouseDrag()

Drag.Icon = pb6.Picture

If Mouse.Left Then
pb6.Drag(pb6.Tag)

Endif

End

Public Sub Refrescar()

pb1.Picture = Picture.Load(pb1.Tag)
pb2.Picture = Picture.Load(pb2.Tag)
pb3.Picture = Picture.Load(pb3.Tag)

Wait 0.2

pb4.Picture = Picture.Load(pb4.Tag)
pb5.Picture = Picture.Load(pb5.Tag)
pb6.Picture = Picture.Load(pb6.Tag)

Wait 0.2

pb7.Picture = Picture.Load(pb7.Tag)
pb8.Picture = Picture.Load(pb8.Tag)
pb9.Picture = Picture.Load(pb9.Tag)

If Intentos > 5 Then
btnSolucion.Visible = True
Endif

Inc Intentos

End

Public Sub Desordenar()

Dim max As Integer
Dim uno As Integer
Dim dos As Integer

Randomize
max = TagOrdenado.Max

uno = Rand(0, max)
dos = Rand(0, max)

Repeat
dos = Rand(0, max)
Until uno <> dos

Swap TagOrdenado[uno], TagOrdenado[dos]

End

Public Sub Refrescar2()

pb1.Tag = TagOrdenado[0]
pb2.Tag = TagOrdenado[1]
pb3.Tag = TagOrdenado[2]

pb4.Tag = TagOrdenado[3]
pb5.Tag = TagOrdenado[4]
pb6.Tag = TagOrdenado[5]

pb7.Tag = TagOrdenado[6]
pb8.Tag = TagOrdenado[7]
pb9.Tag = TagOrdenado[8]

pb1.Picture = Null
pb2.Picture = Null
pb3.Picture = Null
pb4.Picture = Null
pb5.Picture = Null
pb6.Picture = Null
pb7.Picture = Null
pb8.Picture = Null
pb9.Picture = Null

Wait 0.5

Refrescar()

End

Public Sub pb5_MouseDrag()

Drag.Icon = pb5.Picture

If Mouse.Left Then
pb5.Drag(pb5.Tag)

Endif

End

Public Sub pb9_Drop()

Dim MiTag As String

MiTag = pb9.Tag

pb9.Picture = Picture.Load(Drag.Data)
pb9.Tag = Drag.Data

Drag.Source.Tag = MiTag
Refrescar()

End

Public Sub pb7_Drop()

Dim MiTag As String

MiTag = pb7.Tag

pb7.Picture = Picture.Load(Drag.Data)
pb7.Tag = Drag.Data

Drag.Source.Tag = MiTag
Refrescar()

End

Public Sub pb6_Drop()

Dim MiTag As String

MiTag = pb6.Tag

pb6.Picture = Picture.Load(Drag.Data)
pb6.Tag = Drag.Data

Drag.Source.Tag = MiTag
Refrescar()

End

Public Sub pb5_Drop()

Dim MiTag As String

MiTag = pb5.Tag

pb5.Picture = Picture.Load(Drag.Data)
pb5.Tag = Drag.Data

Drag.Source.Tag = MiTag
Refrescar()

End

Public Sub pb7_MouseDrag()

Drag.Icon = pb7.Picture

If Mouse.Left Then
pb7.Drag(pb7.Tag)

Endif

End

Public Sub pb4_MouseDrag()

Drag.Icon = pb4.Picture

If Mouse.Left Then
pb4.Drag(pb4.Tag)

Endif

End

Public Sub pb8_MouseDrag()

Drag.Icon = pb8.Picture

If Mouse.Left Then
pb8.Drag(pb8.Tag)
Endif

End

Public Sub pb1_MouseDrag()

Drag.Icon = pb1.Picture

If Mouse.Left Then
pb1.Drag(pb1.Tag)

Endif

End

Public Sub pb2_MouseDrag()

Drag.Icon = pb2.Picture

If Mouse.Left Then
pb2.Drag(pb2.Tag)

Endif

End

Public Sub pb3_MouseDrag()

Drag.Icon = pb3.Picture

If Mouse.Left Then
pb3.Drag(pb3.Tag)

Endif

End

Public Sub pb4_Drop()

Dim MiTag As String

MiTag = pb4.Tag

pb4.Picture = Picture.Load(Drag.Data)
pb4.Tag = Drag.Data

Drag.Source.Tag = MiTag
Refrescar()

End

Public Sub pb1_Drop()

Dim MiTag As String

MiTag = pb1.Tag

pb1.Picture = Picture.Load(Drag.Data)
pb1.Tag = Drag.Data

Drag.Source.Tag = MiTag
Refrescar()

End

Public Sub pb2_Drop()

Dim MiTag As String

MiTag = pb2.Tag

pb2.Picture = Picture.Load(Drag.Data)
pb2.Tag = Drag.Data

Drag.Source.Tag = MiTag
Refrescar()

End

Public Sub pb3_Drop()

Dim MiTag As String

MiTag = pb3.Tag

pb3.Picture = Picture.Load(Drag.Data)
pb3.Tag = Drag.Data

Drag.Source.Tag = MiTag
Refrescar()

End

Public Sub btnDesordenar_Click()

Desordenar()
Refrescar2

End

Public Sub ReiniciarVariables()

PBactual = New PictureBox(Me)
TagOrdenado = New String[]
Intentos = 0
btnSolucion.Visible = False

End

Public Sub btnSolucion_Click()

PictureBox1.Visible = Not PictureBox1.Visible

End

Public Sub cbxFotos_Click()

ReiniciarVariables()

SepararImagenes(cbxFotos.Text, 3, 3)

End

El ejemplo se encuentra en la granja de gambas.

Drag y Drop (Ej. 1)

' gambas class file

'by postapase

Public Sub Form_Open()
Me.Center
End

Public Sub Button1_Drop()
Button1.Picture = Picture[Drag.Data]
End

Public Sub Button2_MouseDrag()
If Mouse.Left Then
Button2.Drag("icon:/64/linux")
Endif
End

Public Sub Button3_MouseDrag()
If Mouse.Left Then
Button3.Drag("icon:/64/book")
Endif
End

Public Sub Button4_MouseDrag()
If Mouse.Left Then
Button4.Drag("icon:/64/gambas")
Endif
End

Public Sub Button5_MouseDrag()
If Mouse.Left Then
Button5.Drag("icon:/64/gnu")
Endif
End

Public Sub Button1_Click()
Button1.Picture = Null
End

Código fuente: ArrastrarYsoltar-0.0.1.tar.gz

Ejemplo 2:

' gambas class file

'by postapase

Public Sub Form_Open()
Me.Center
End

Public Sub Button1_Drop()
Button1.Picture = Drag.Data.Picture
End

Public Sub Button2_MouseDrag()
If Mouse.Left Then
Button2.Drag(Button2.Picture.Image)
Endif
End

Public Sub Button3_MouseDrag()
If Mouse.Left Then
Button3.Drag(Button3.Picture.Image)
Endif
End

Public Sub Button4_MouseDrag()
If Mouse.Left Then
Button4.Drag(Button4.Picture.Image)
Endif
End

Public Sub Button5_MouseDrag()
If Mouse.Left Then
Button5.Drag(Button5.Picture.Image)
Endif
End

Public Sub Button1_Click()
Button1.Picture = Null
End