;
; Program : Texture popper
;
; Author : Stephen Greener (aka Shagwana)
; www.sublimegames.com
;
; Short description :
;
; Load in a source image
; Set the 4 points to the area you wish to grab
; Save the region from the menu
; Select the size of the area you wish to export
; Computer will now convert the contence of the region into a nice rectange of your chossing (bmp)
;___________________________________________________________________________________________________________________________________
Const DEBUG_BUILD=False
Const TESTFILENAME$=""
Const START_WINDOW_WIDTH=700
Const START_WINDOW_HEIGHT=400
Const START_ROI_INSTEP = 3
Const GRAB_SNAP = 250
;__/ Varibles \_____________________________________________________________________________________________________________________
;Data
Global pSourceImage=0
Global iViewXPos=0,iViewYPos=0
Global QuitProgram=False
;What the user is doing
Global bEditing=False ;User is doing something at the moment?
Global bDraggingScreen=False ;User is either dragging the screen or dragging a point
Global iPointEdit=0
Global iSaveWidth=512
Global iSaveHeight=512
Global iMouseXStart=0
Global iMouseYStart=0
;Gadgets
Global pMainWindow=0
Global pMainWindowMenu=0
Global pPanelView=0
Global pMainViewCanvas=0
Global pHorzSlider=0
Global pVertSlider=0
Global pDisplayTimer=0
Global pFileMenu=0
;Vertex on image
Global bVertexValid[4]
Global iVertexXPos[4]
Global iVertexYPos[4]
For n=0 To 3
bVertexValid[n]=False ;Clear all the verts
Next
;__/ Functions \____________________________________________________________________________________________________________________
Function SetupProgram() ;Setup the gadgets and other gui objects
;Setup the main window
pMainWindow=CreateWindow("Texture popper",(GraphicsWidth()-START_WINDOW_WIDTH)/2,(GraphicsHeight()-START_WINDOW_HEIGHT)/3,START_WINDOW_WIDTH,START_WINDOW_HEIGHT,0,%101111) ;Main window
SetMinWindowSize pMainWindow,200,200
pMainWindowMenu=WindowMenu(pMainWindow)
pPanelView=CreatePanel(2,2,GadgetWidth(pMainWindow)-30,GadgetHeight(pMainWindow)-88,pMainWindow)
SetGadgetLayout pPanelView,1,1,1,1
pMainViewCanvas=CreateCanvas(0,0,GraphicsWidth(),GraphicsHeight(),pPanelView,0)
SetGadgetLayout pMainViewCanvas,1,0,1,0 ;Clamp the canvas to the top left corner
pHorzSlider=CreateSlider(0,GadgetHeight(pMainWindow)-84,START_WINDOW_WIDTH-18,18,pMainWindow,1)
SetGadgetLayout pHorzSlider,1,1,0,1
pVertSlider=CreateSlider(GadgetWidth(pMainWindow)-26,0,18,START_WINDOW_HEIGHT-18,pMainWindow,0)
SetGadgetLayout pVertSlider,0,1,1,1
pDisplayTimer=CreateTimer(10)
;Menu...
pFileMenu=CreateMenu("File",0,pMainWindowMenu)
CreateMenu "Load Image",1,pFileMenu
CreateMenu "",2,pFileMenu
CreateMenu "Save Region",3,pFileMenu
UpdateWindowMenu pMainWindow
End Function
Function InitSourceImage() ;Load in a source image
pSourceImage=CreateImage(800,600) ;Blank usless image!
SetStatusText(pMainWindow,"www.sublimegames.com")
iViewXPos=0
iViewYPos=0
;Make the ROI fit inside the image
iVertexXPos[0]=(ImageWidth(pSourceImage)/START_ROI_INSTEP)
iVertexYPos[0]=(ImageHeight(pSourceImage)/START_ROI_INSTEP)
iVertexXPos[1]=ImageWidth(pSourceImage)-(ImageWidth(pSourceImage)/START_ROI_INSTEP)
iVertexYPos[1]=(ImageHeight(pSourceImage)/START_ROI_INSTEP)
iVertexXPos[2]=ImageWidth(pSourceImage)-(ImageWidth(pSourceImage)/START_ROI_INSTEP)
iVertexYPos[2]=ImageHeight(pSourceImage)-(ImageHeight(pSourceImage)/START_ROI_INSTEP)
iVertexXPos[3]=(ImageWidth(pSourceImage)/START_ROI_INSTEP)
iVertexYPos[3]=ImageHeight(pSourceImage)-(ImageHeight(pSourceImage)/START_ROI_INSTEP)
DrawDisplay()
End Function
Function LoadSourceImage(Filename$) ;Load in a source image
If pSourceImage<>0
FreeImage pSourceImage
EndIf
pSourceImage=LoadImage(Filename$)
SetStatusText(pMainWindow,"Loaded source image : "+Filename$)
iViewXPos=0
iViewYPos=0
;Make the ROI fit inside the image
iVertexXPos[0]=(ImageWidth(pSourceImage)/START_ROI_INSTEP)
iVertexYPos[0]=(ImageHeight(pSourceImage)/START_ROI_INSTEP)
iVertexXPos[1]=ImageWidth(pSourceImage)-(ImageWidth(pSourceImage)/START_ROI_INSTEP)
iVertexYPos[1]=(ImageHeight(pSourceImage)/START_ROI_INSTEP)
iVertexXPos[2]=ImageWidth(pSourceImage)-(ImageWidth(pSourceImage)/START_ROI_INSTEP)
iVertexYPos[2]=ImageHeight(pSourceImage)-(ImageHeight(pSourceImage)/START_ROI_INSTEP)
iVertexXPos[3]=(ImageWidth(pSourceImage)/START_ROI_INSTEP)
iVertexYPos[3]=ImageHeight(pSourceImage)-(ImageHeight(pSourceImage)/START_ROI_INSTEP)
DrawDisplay()
End Function
Function DrawDisplay() ;update the display where needed
SetBuffer CanvasBuffer(pMainViewCanvas)
If pSourceImage<>0
If GadgetWidth(pPanelView)>ImageWidth(pSourceImage) Then iViewXPos=0
If GadgetHeight(pPanelView)>ImageHeight(pSourceImage) Then iViewYPos=0
;Ensure the view is valid
If 0-iViewXPos>0
iViewXPos=0 ;Should never happen!
Else
If (iViewXPos+GadgetWidth(pPanelView))>ImageWidth(pSourceImage)
iViewXPos=ImageWidth(pSourceImage)-GadgetWidth(pPanelView)
EndIf
EndIf
If 0-iViewYPos>0
iViewYPos=0 ;Should never happen!
Else
If (iViewYPos+GadgetHeight(pPanelView))>ImageHeight(pSourceImage)
iViewYPos=ImageHeight(pSourceImage)-GadgetHeight(pPanelView)
EndIf
EndIf
;Redraw the screen
ClsColor 0,100,0
Cls
DrawBlock pSourceImage,0-iViewXPos,0-iViewYPos
;Update the slider bars (just in case of window resize)
SetSliderRange pHorzSlider,GadgetWidth(pPanelView),ImageWidth(pSourceImage)
SetSliderValue pHorzSlider,iViewXPos
SetSliderRange pVertSlider,GadgetHeight(pPanelView),ImageHeight(pSourceImage)
SetSliderValue pVertSlider,iViewYPos
OverLayArea()
EndIf
FlipCanvas pMainViewCanvas
End Function
Function OverLayArea() ;Draw the ROI (region of intrest)
;Check to see if all 4 verts are on screen, before drawing
For N=0 To 3
If iVertexXPos[N]<0 Then iVertexXPos[N]=0
If iVertexYPos[N]<0 Then iVertexYPos[N]=0
If iVertexXPos[N]>ImageWidth(pSourceImage) Then iVertexXPos[N]=ImageWidth(pSourceImage)
If iVertexYPos[N]>ImageHeight(pSourceImage) Then iVertexYPos[N]=ImageHeight(pSourceImage)
Next
b=False
If ((MilliSecs()/140) Mod 4)>2 Then b=True
;Draw the lines inbetween
If b=True
Color 255,0,255
Else
Color 0,255,0
EndIf
Line iVertexXPos[0]-iViewXPos,iVertexYPos[0]-iViewYPos,iVertexXPos[1]-iViewXPos,iVertexYPos[1]-iViewYPos
Line iVertexXPos[1]-iViewXPos,iVertexYPos[1]-iViewYPos,iVertexXPos[2]-iViewXPos,iVertexYPos[2]-iViewYPos
Line iVertexXPos[2]-iViewXPos,iVertexYPos[2]-iViewYPos,iVertexXPos[3]-iViewXPos,iVertexYPos[3]-iViewYPos
Line iVertexXPos[3]-iViewXPos,iVertexYPos[3]-iViewYPos,iVertexXPos[0]-iViewXPos,iVertexYPos[0]-iViewYPos
For N=0 To 3
iX=iVertexXPos[N]-iViewXPos
iY=iVertexYPos[N]-iViewYPos
;Draw the Point
If b=True
Color 255,255,255
Rect iX-1,iY-1,3,3,False
Color 0,0,0
Rect iX-3,iY-3,7,7,False
Else
Color 0,0,0
Rect iX-1,iY-1,3,3,False
Color 255,255,255
Rect iX-3,iY-3,7,7,False
EndIf
Next
End Function
;__/ Main program \_________________________________________________________________________________________________________________
.MainProgram:
iSaveWidth=512
iSaveHeight=512
SetupProgram()
If DEBUG_BUILD=True
LoadSourceImage(TESTFILENAME$)
Else
InitSourceImage()
EndIf
Repeat
DrawDisplay()
Ev=WaitEvent()
Es=EventSource()
Select Es
Case pHorzSlider
Select Ev
Case $401
iViewXPos=SliderValue(pHorzSlider)
End Select
Case pVertSlider
Select Ev
Case $401
iViewYPos=SliderValue(pVertSlider)
End Select
Case pMainViewCanvas
DoCanvas(Ev)
Case pMainWindow
Select Ev
Case $803
;Window close
QuitProgram=True
End Select
Default
Select Ev
Case $1001
Select EventData()
Case 1
;Load
fn$=RequestFile$("Load source image")
If fn$<>""
LoadSourceImage(fn$)
EndIf
Case 3
;Save
;If sfn$<>""
SaveRegion()
; EndIf
End Select
End Select
End Select
Until QuitProgram=True
End
;Calc distance of a line
Function Calc_Distance(XD%,YD%)
XDelta%=Abs(XD%)
YDelta%=Abs(YD%)
Return Sqr((XDelta*XDelta)+(YDelta*YDelta))
End Function
;Do the magical work on the canvas here
Function DoCanvas(Ev)
If bEditing=False
;Not doing anything at the moment, free to do something...
Select Ev
Case $201 ;Mouse down in the canvas
Select EventData()
Case 1 ;LMB (drag point)
;If over point, drag it
iCloses=(GRAB_SNAP+1)
bFound=False
For N=0 To 3
dist=Calc_Distance(iVertexXPos[N]-(MouseX(pMainViewCanvas)+iViewXPos),iVertexYPos[N]-(MouseY(pMainViewCanvas)+iViewYPos))
If dist<iCloses
iCloses=dist
bFound=True
iPointEdit=N
EndIf
Next
If bFound=True
bEditing=True
bDraggingScreen=False
n=MouseXSpeed(pMainViewCanvas) ;First one contains rubbish!
n=MouseYSpeed(pMainViewCanvas)
EndIf
Case 2 ;RMB (move view)
;Move screen!
bEditing=True
bDraggingScreen=True
n=MouseXSpeed(pMainViewCanvas) ;First one contains rubbish!
n=MouseYSpeed(pMainViewCanvas)
End Select
End Select
Else
;Working on something at the moment
If bDraggingScreen=False
;Moving the screen
Select Ev
Case $203
Select iPointEdit
Case 0
SetStatusText(pMainWindow,"Moving top-left point")
Case 1
SetStatusText(pMainWindow,"Moving top-right point")
Case 2
SetStatusText(pMainWindow,"Moving bottom-right point")
Case 3
SetStatusText(pMainWindow,"Moving bottom-left point")
End Select
iVertexXPos[iPointEdit]=iVertexXPos[iPointEdit]+MouseXSpeed(pMainViewCanvas)
iVertexYPos[iPointEdit]=iVertexYPos[iPointEdit]+MouseYSpeed(pMainViewCanvas)
Case $202
Select EventData()
Case 1 ;RMB (move view)
;Move screen!
bEditing=False
End Select
End Select
Else
;Moving a point
Select Ev
Case $203
iViewXPos=iViewXPos-MouseXSpeed(pMainViewCanvas)
iViewYPos=iViewYPos-MouseYSpeed(pMainViewCanvas)
Case $202
Select EventData()
Case 2 ;RMB (move view)
;Move screen!
bEditing=False
End Select
End Select
EndIf
EndIf
End Function
;Pop up window asking for the size of the region to export to, with proceed button
Function SaveRegion()
;Get size of the image to save from the user by putting up a new window
pToolWin=CreateWindow("Save region",GadgetX(pMainWindow)+40,GadgetY(pMainWindow)+40,300,50,pMainWindow,%010001)
p1=CreateLabel("Width ",10,7,40,20,pToolWin)
p2=CreateLabel("Height ",120,7,40,20,pToolWin)
pWGad=CreateTextField(50,4,60,20,pToolWin)
pHGad=CreateTextField(160,4,60,20,pToolWin)
pProceed=CreateButton("Save",228,4,60,20,pToolWin)
SetGadgetText(pWGad,iSaveWidth)
SetGadgetText(pHGad,iSaveHeight)
bDone=False
bDoSave=False
Repeat
Ev=WaitEvent()
Es=EventSource()
Select Es
Case pProceed
;Ensure numbers are valid
FlushEvents()
num=TextFieldText(pWGad)
If num<10 Then num=10
iSaveWidth=num
SetGadgetText(pWGad,iSaveWidth)
;Ensure numbers are valid
num=TextFieldText(pHGad)
If num<10 Then num=10
iSaveHeight=num
SetGadgetText(pHGad,iSaveHeight)
bDoSave=True
bDone=True
Case pToolWin
Select Ev
Case $803 ;Exit save thing
bDone=True
End Select
Case pMainWindow
;Quit on the main window!
Select Ev
Case $803
QuitProgram=True
bDone=True
End Select
End Select
Until bDone=True
FreeGadget pProceed
FreeGadget p1
FreeGadget p2
FreeGadget pWGad
FreeGadget pHGad
FreeGadget pToolWin
If bDoSave=True
If DEBUG_BUILD=True
sfn$=Int(MilliSecs())+".bmp"
Else
sfn$=RequestFile$("Save region to","",True)
EndIf
SaveRegionAsBMP(sfn$,iSaveWidth,iSaveHeight) ;Do the needed magic
EndIf
End Function
;Convert the area of intrest into another bitmap and save
Function SaveRegionAsBMP(filename$,iSaveWidth,iSaveHeight)
pSaveImage=CreateImage(iSaveWidth,iSaveHeight,1,2)
SetBuffer ImageBuffer(pSaveImage)
;Do the funcky magic - wip
;Top lines maths (top left to top right)
fstart_xstep#=Float(iVertexXPos[1]-iVertexXPos[0])/Float(iSaveWidth) ;How much to step every x
fstart_ystep#=Float(iVertexYPos[1]-iVertexYPos[0])/Float(iSaveWidth) ;How much to step every y
;Bottom lines maths (bottom left to bottom right)
fend_xstep#=Float(iVertexXPos[2]-iVertexXPos[3])/Float(iSaveWidth) ;How much to step every x
fend_ystep#=Float(iVertexYPos[2]-iVertexYPos[3])/Float(iSaveWidth) ;How much to step every y
top_xcoord#=iVertexXPos[0]
top_ycoord#=iVertexYPos[0]
bottom_xcoord#=iVertexXPos[3]
bottom_ycoord#=iVertexYPos[3]
For xstep=0 To iSaveWidth-1
;Step through each pixel that needs saving in the x
fdown_xstep#=Float(bottom_xcoord#-top_xcoord#)/Float(iSaveHeight)
fdown_ystep#=Float(bottom_ycoord#-top_ycoord#)/Float(iSaveHeight)
fdown_xcoord#=top_xcoord#
fdown_ycoord#=top_ycoord#
For ystep=0 To iSaveHeight-1
;Pull the pixel we want
SetBuffer ImageBuffer(pSourceImage)
GetColor(Int(fdown_xcoord),Int(fdown_ycoord))
;Set color works per buffer. not global
r=ColorRed()
g=ColorGreen()
b=ColorBlue()
SetBuffer ImageBuffer(pSaveImage)
Color r,g,b
Plot(xstep,ystep)
fdown_xcoord#=fdown_xcoord#+fdown_xstep#
fdown_ycoord#=fdown_ycoord#+fdown_ystep#
Next
;Step to the next point of intrest
top_xcoord#=top_xcoord#+fstart_xstep#
top_ycoord#=top_ycoord#+fstart_ystep#
bottom_xcoord#=bottom_xcoord#+fend_xstep#
bottom_ycoord#=bottom_ycoord#+fend_ystep#
Next
FlushEvents()
;Working
SetStatusText(pMainWindow,"Save region :"+filename$)
SaveImage(pSaveImage,filename$)
FreeImage pSaveImage
End Function |
