Making an increment bar????

Coding Python Support
#1

HI,

Does anyone have any suggestions on how to make an increment bar work on the gui?

Similar to a windows installer bar, I’d like to have one on my import /export scripts.

I’d tried several ways, but repeatedly get "referenced before assignment "errors.

Any suggestions welcome (and pointers to scripts with ones).

Cheers Stephen

#2

actually its kinda simple, divide your process into how many incriments, then at the end of that much code have it stick an incriment amoutn in the bar, i don’t know anyone with that, or a way of doign it myself since i havent gotten into gui programming

MacBlender

#3

Thanks, I’d got that bit, I just can’t get the thing to show up or refresh!!!

Here is the code I’m playing with, any suggestions???


from Blender.Draw import *
from Blender.BGL import *

incW = 0
incMAX = 300.00

def gui():
    global incW
    glClearColor(0.5,0.5,0.75, 0.0)
    glClear(GL_COLOR_BUFFER_BIT)
    DrawglBOX(100,200,incW,50)
    Button("Exit", 1, 100, 100, 100, 50, "Exit")
    Button("Go", 2, 200, 100, 100, 50, "Go")
    
def DrawglBOX(x1,y1,W,H):
    x2 = x1 + W
    y2 = y1 + H
    glColor3f (0.0, 0.0, 0.0);
    glLineWidth (1);
    glBegin (GL_LINE_LOOP);
    glVertex2f (x1, y1);
    glVertex2f (x2, y1);
    glVertex2f (x2, y2);
    glVertex2f (x1, y2);
    glEnd ();

def event(evt, val): 
    if (evt == ESCKEY and not val): Exit()

def bevent(evt):
    if (evt == 1): Exit()
    if (evt == 2):
        for x in range(300):
            incW = int((x/incMAX) * incMAX)
            print x,incMAX, incW
            Redraw(1) #Tried Redraw() and Draw()

Register(gui, event, bevent)
#4 

def bevent(evt):
    global incW, incMAX
    if (evt == 1): Exit()
    if (evt == 2):
        for x in range(300):
            incW = int((x/incMAX) * incMAX)
            print x,incMAX, incW
            Redraw(1) #Tried Redraw() and Draw()

You forgot to reference your two varaibles with the Global keyword since you need to access it from another namespace.

Martin

#5

Hi,

Thanks for that - works well now :stuck_out_tongue:

here is the complete test code, if anyone wants to play with it:

Cheers Stephen


from Blender.Draw import *
from Blender.BGL import *

incW = 0
incMAX = 296.00
objno = 300

def gui():
    glClearColor(0.5,0.5,0.75, 0.0)
    glClear(GL_COLOR_BUFFER_BIT)
    DrawglBOX(0,100,200,300,50)
    DrawglBOX(1,102,202,incW,46)
    Button("Exit", 1, 100, 100, 100, 50, "Exit")
    Button("Go", 2, 200, 100, 100, 50, "Go")
    
def DrawglBOX(type,x1,y1,W,H):
    x2 = x1 + W
    y2 = y1 + H
    glColor3f (0.0, 0.0, 0.7);
    glLineWidth (1);
    if (type == 0):
        glBegin (GL_LINE_LOOP);
    elif (type == 1):
        glBegin (GL_POLYGON);
    else:
        glBegin (GL_POLYGON);
    glVertex2f (x1, y1);
    glVertex2f (x2, y1);
    glVertex2f (x2, y2);
    glVertex2f (x1, y2);
    glEnd ();

def event(evt, val): 
    if (evt == ESCKEY and not val): Exit()

def bevent(evt):
    global incW, incMAX, objno
    if (evt == 1): Exit()
    if (evt == 2):
        for x in range(objno):
            incW = int(((x+1.0)/float(objno)) * incMAX)
            print objno, x,incMAX, incW
            Redraw() #To test use 'Draw()' - much slower!

Register(gui, event, bevent)