http://www.purebasic.fr/english/viewtop ... 12&t=60961
Code : Tout sélectionner
; Images advise. Who first recognizes the image?
; Dige 11/2014
OpenWindow(0, 0, 0, 100, 100, "", #PB_Window_SystemMenu |#PB_Window_Maximize | #PB_Window_MinimizeGadget | #PB_Window_MaximizeGadget | #PB_Window_SizeGadget | #PB_Window_ScreenCentered)
Enumeration
#CG_IMAGE
#TB_SLIDER
#B_Next
#B_Prev
EndEnumeration
Enumeration
#IMG_ORIG
#IMG_VIEW
EndEnumeration
UseJPEGImageDecoder()
UsePNGImageDecoder()
#IMGEXT = ".JPG.JPEG.PNG.BMP"
Global NewList Images.s(), merke.s
Procedure OpenMainWindow()
CanvasGadget(#CG_IMAGE, 0, 0, WindowWidth(0), WindowHeight(0) - 50)
ButtonGadget(#B_Prev, 0, WindowHeight(0) - 50, 50, 50, "<")
TrackBarGadget(#TB_SLIDER, 50, WindowHeight(0) - 50, WindowWidth(0) -100, 50, 1, 50, #TBS_FIXEDLENGTH)
SendMessage_(GadgetID(#TB_SLIDER), #TBM_SETTHUMBLENGTH, 50, 0)
ButtonGadget(#B_Next, WindowWidth(0)-50, WindowHeight(0) - 50, 50, 50, ">")
EndProcedure
Procedure LoadImageList()
Protected Directory.s
Directory = PathRequester("Choisir un dossier image", "")
If Directory = "" Or FileSize(Directory) <> -2
End
EndIf
ClearList( Images())
If ExamineDirectory(0, Directory, "*.*")
While NextDirectoryEntry(0)
If DirectoryEntryType(0) = #PB_DirectoryEntry_File
If FindString( #IMGEXT, UCase(GetExtensionPart(DirectoryEntryName(0))))
AddElement(Images())
Images() = Directory + DirectoryEntryName(0)
EndIf
EndIf
Wend
FinishDirectory(0)
EndIf
If ListSize(Images()) > 0
FirstElement(Images())
EndIf
EndProcedure
Procedure RenderImage()
Protected w, h, f.f
If StartDrawing(CanvasOutput(#CG_IMAGE))
w = OutputWidth()
h = OutputHeight()
If IsImage(#IMG_ORIG) = 0
If LoadImage(#IMG_ORIG, Images())
f = ImageWidth(#IMG_ORIG) / ImageHeight(#IMG_ORIG)
If f > 0 ; Régler la hauteur largeur - plus large que haut
ResizeImage(#IMG_ORIG, h*f, h, #PB_Image_Smooth)
Else
ResizeImage(#IMG_ORIG, w, w/f, #PB_Image_Smooth)
EndIf
EndIf
Box (0, 0, w, h, #White)
EndIf
If IsImage(#IMG_ORIG)
CopyImage(#IMG_ORIG, #IMG_VIEW)
If GetGadgetState(#TB_SLIDER) < 50
ResizeImage(#IMG_VIEW, ImageWidth(#IMG_ORIG) * GetGadgetState(#TB_SLIDER)/100, ImageHeight(#IMG_ORIG)*GetGadgetState(#TB_SLIDER)/100, #PB_Image_Smooth)
ResizeImage(#IMG_VIEW, ImageWidth(#IMG_ORIG), ImageHeight(#IMG_ORIG), #PB_Image_Raw)
EndIf
EndIf
DrawImage(ImageID(#IMG_VIEW), w/2- ImageWidth(#IMG_VIEW)/2, h/2-ImageHeight(#IMG_VIEW)/2)
StopDrawing()
EndIf
EndProcedure
OpenMainWindow()
Repeat
Event = WaitWindowEvent()
If Event = #PB_Event_Gadget
If ListSize(Images()) <= 0
Event = 0
LoadImageList()
Else
Select EventGadget()
Case #B_Prev : PreviousElement(Images())
Case #B_Next : NextElement(Images())
Case #TB_SLIDER : RenderImage()
EndSelect
EndIf
EndIf
If ListIndex(Images()) >= 0 And merke <> Images()
If IsImage(#IMG_ORIG)
FreeImage(#IMG_ORIG)
EndIf
If IsImage(#IMG_VIEW)
FreeImage(#IMG_VIEW)
EndIf
merke = Images()
SetGadgetState(#TB_SLIDER, 1)
RenderImage()
EndIf
Until Event = #PB_Event_CloseWindow
