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hiring_dude
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 Posted: Tue Dec 27, 2011 7:59 am Post subject: form property access and few bugs |
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Hi,
still working on my project..
I want to draw some graphics from retrieved statistics and then use canvas.
Mantis tracking bugs
NOTE : all those test have been done with a "panel" control
1 ---------------------------------------------------------------------------
MINOR
canvas_getWidth and canvas_getHeight return Zero until you modify some canvas property
also got "access violation" error message box after 1st execution of the loaded .ct
get reseted to 0 each time a window cover (even partially) the customControl
----------------------------------------- code example
canvas = customControl_getCanvas(UDF1_PANEL);
print(canvas_getWidth(canvas));
print(canvas_getHeight(canvas));
canvas_setPenPosition(canvas, 0, 0);
print(canvas_getWidth(canvas));
print(canvas_getHeight(canvas));
output :
0
0
320
240
2 ---------------------------------------------------------------------------
MINOR
canvas_lineTo(destinationx, destinationy)
the function do not exist..
3 ---------------------------------------------------------------------------
MINOR
following function have no effect :
brush_setColor(brush, color)
color remain 0xFFFFFF and affect following function
canvas_rect()
canvas_fillRect()
canvas_ellipse()
canvas_textOut(x,y, text) -- bg remain white
4 ---------------------------------------------------------------------------
MINOR
is it normal that canvas_rect() is filled with the brush color ?
a simple workaround would be to use canvas_line() to draw manually the borders,
but what can i do with canvas_ellipse() if i want to simply draw an unfilled circle
5 ----------------------------------------------------------------------------
TRIVIAL
uncomplete documentation :
canvas_lineTo(canvas, destinationx, destinationy)
canvas_rect(canvas,x1,y1,x2,y2)
canvas_fillRect(canvas,x1,y1,x2,y2)
canvas_textOut(canvas, x, y, text)
6 ----------------------------------------------------------------------------
TRIVIAL
I don't understand what do this function because have no visual effect :
canvas_floodFill(canvas,x,y)
7 ----------------------------
QUESTION ABOUT : Undefined Property Functions
| Quote: | Not all properties of all classes have been explicitly exposed to lua, but if you know the name of a property of a specific class you can still access them (assuming they are declared as published in the pascal class declaration)
getPropertyList(class)
Returns a StringList object containing all the published properties of the specified class (free the list when done) (Note, not all classed with properties have 'published' properties. E.g StringList itself)
setProperty(class, propertyname, propertyvalue) Sets the value of a published property of a class (Won't work for method properties)
getProperty(class, propertyname) Gets the value of a published property of a class (Won't work for method properties) |
The documentation seem to refer to property listed in the object Inspector windows property panel.
we are able to effectively do :
print(getProperty(UDF1_PANEL,"Height"));
after some few search (i'm not a C,C++ developper) i finally understood how to access and get/set info in stringList object
then i'm facing a new problem, how can i get a sub property from a property ??
t = getProperty(UDF1_PANEL,"Font")
how can i access font.size or evej Font.Style.fsBold ?
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Dark Byte
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Location: The netherlands
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| Posted: Tue Dec 27, 2011 12:38 pm Post subject: |
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I recommend using an image control instead of a panel since in a panel you'll have to do your code in the onpaint event else your drawing will be gone if anything renders over it (like another window)
(That also fixes 1)
Besides that, I can confirm these bugs in 6.1 (some are already fixed in the svn)
7:
There is currently no way to access the font property with lua code in 6.1
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mgr.inz.Player
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Joined: 07 Nov 2008
Posts: 4438
Location: W kraju nad Wisla. UTC+01:00
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| Posted: Tue Dec 27, 2011 1:41 pm Post subject: |
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As you know, I'm using current rev.
form_setBorderStyle(MyForm, bsSizeable)
form_getBorderStyle(MyForm)
gives:
attempt to call global 'form_setBorderStyle' (a nil value)
because it's not registered (Lua_register)
I know I can fix this by adding few lines in initializeLuaForm procedure.
But I also tried this:
setProperty(MyForm, "BorderStyle", bsSizeable)
but MyForm still isn't "sizeable".
Btw. this works
setProperty(MyForm, "Caption","setproperty test")
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Dark Byte
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| Posted: Tue Dec 27, 2011 1:43 pm Post subject: |
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try this:
setProperty(MyForm, "BorderStyle", "bsSizeable")
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mgr.inz.Player
I post too much
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Joined: 07 Nov 2008
Posts: 4438
Location: W kraju nad Wisla. UTC+01:00
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| Posted: Tue Dec 27, 2011 3:30 pm Post subject: |
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thank you. 
If anyone interested:
anchors - setProperty(MyPanel, 'Anchors','akTop,akLeft,akRight,akBottom')
(if you want top and left: 'akTop,akLeft')
Image:
Proportional - setProperty(MyImage, 'Proportional','true')
stretch - image_stretch(MyImage, true)
| Code: | function FormClose(sender)
object_destroy(MyForm)
MyForm = nil
return caFree --Possible options: caHide, caFree, caMinimize, caNone
end
FormClose()
MyForm = createForm(false)
control_setSize(MyForm, 400,400)
control_setCaption(MyForm,'Canvas Test')
setProperty(MyForm, 'BorderStyle', 'bsSizeable')
form_onClose(MyForm, FormClose)
form_show(MyForm)
MyPanel = createPanel(MyForm)
control_setPosition(MyPanel, 10,10)
control_setSize(MyPanel, 380,380)
setProperty(MyPanel, 'Anchors','akTop,akLeft,akRight,akBottom')
MyImage = createImage(MyPanel)
control_setAlign(MyImage, alClient)
setProperty(MyImage, 'Anchors','akTop,akLeft,akRight,akBottom')
--setProperty(MyImage, 'Proportional','true')
image_stretch(MyImage, true)
canvas = image_getCanvas(MyImage)
brush = canvas_getBrush(canvas)
brush_setColor(brush, 0xff00ff) --pink BBGGRR
pen = canvas_getPen(canvas)
pen_setWidth(pen, 1)
canvas_line(canvas, 0,0,90,90)
pen_setColor(pen, 0x00ffff) --yellow BBGGRR
-- house
canvas_setPenPosition(canvas, 80, 100)
canvas_lineTo(canvas,120,140)
canvas_lineTo(canvas,120,190)
canvas_lineTo(canvas,40,190)
canvas_lineTo(canvas,40,140)
canvas_lineTo(canvas,80,100)
-- door
pen_setColor(pen, 0x00ff00) --green BBGGRR
canvas_setPenPosition(canvas, 100, 190)
canvas_lineTo(canvas,100,170)
canvas_lineTo(canvas,90,170)
canvas_lineTo(canvas,90,190)
-- ground
pen_setColor(pen, 0x888888) --gray BBGGRR
pen_setWidth(pen, 5)
canvas_setPenPosition(canvas, 0, 193)
canvas_lineTo(canvas,240,193)
--begin tree
pen_setWidth(pen, 12)
pen_setColor(pen, 0xeeeeee) --gray BBGGRR
canvas_setPenPosition(canvas, 170, 185)
canvas_lineTo(canvas,170,170)
pen_setWidth(pen, 1)
pen_setColor(pen, 0x00ff00) --green BBGGRR
for index=0,80,10 do
canvas_setPenPosition(canvas, 170, 170)
canvas_lineTo(canvas,170 - index + 40,120)
end
-- end tree
canvas_rect(canvas,20,50,50,80) --yes it's filled
canvas_textOut(canvas,20,110,'text')
collectgarbage ("collect") |
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atom0s
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Location: 127.0.0.1
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| Posted: Tue Dec 27, 2011 5:51 pm Post subject: |
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Just doing some testing too: (Using CE6.1 Alpha 3)
1. Confirmed broken.
2. Not sure if this is broken since the right implementation exists:
| Code: | 2 ---------------------------------------------------------------------------
MINOR
canvas_lineTo(destinationx, destinationy)
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The first param is the canvas, then the position coords afterward:
| Code: | | canvas_lineTo(canvasObj, posx, posy) |
3. brush_setColor seems fixed in Alpha3. Sets the background color of text and various other objects fill color. But it works fine for me and brush_getColor returns properly when brush_setColor is used.
4. Rect is filled based on two colors.
- Border = Pen = pen_setColor
- Fill = Brush = brush_setColor
| Code: | brush = canvas_getBrush( canvas );
brush_setColor( brush, 0xff0000 ); -- blue fill
pen = canvas_getPen( canvas );
pen_setColor( pen, 0x00ff00 ); -- green border
canvas_rect( canvas, 1, 1, 25, 25 ); |
5. -- Trivial --
6. You have to do manual drawing for it. DB posted an example somewhere but I can't find it. I don't remember if it was in the beta section or not.
7. Properties of properties isn't support (currently) in Beta 3.
| Quote: | | undefined property functions. Not all properties of all classes have been explicitly exposed to lua, but if you know the name of a property of a specific class you can still access them (assuming they are declared as published in the pascal class declaration) |
| Quote: | setProperty(class, propertyname, propertyvalue) : Sets the value of a published property of a class (Won't work for method properties)
getProperty(class, propertyname) : Gets the value of a published property of a class (Won't work for method properties) |
Note the wont work on method properties part too.
This 'should' work since Style is returned with getPropertyList:
| Code: |
function onFormClose( sender )
object_destroy( form );
form = nil;
return caFree;
end
onFormClose();
form = createForm( true );
form_onClose( form, onFormClose );
local font = control_getFont( form );
local text = createLabel( form );
control_setCaption( 'This is some text.' );
local bold = getProperty( font, "Style" );
print( 'font: ' .. tostring( font ) .. ' :: bold: ' .. tostring( bold ) );
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But getProperty fails to return a valid value.
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Dark Byte
Site Admin
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Posts: 25284
Location: The netherlands
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| Posted: Tue Dec 27, 2011 6:01 pm Post subject: |
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getProperty for the "Font" property of an object returns an integer.
6.2 has an integerToUserData you can use to convert the integer to a valid Object
(This code ONLY works on the 6.2 alpha, so not really useful. Just showing that it will be possible)
| Code: |
x=getProperty(UDF1_CELabel1,"Font")
x2=integerToUserData(x)
print(object_getClassName(x2))
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prints TFont which can be controlled with the font_ functions
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atom0s
Moderator
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Joined: 25 Jan 2006
Posts: 8517
Location: 127.0.0.1
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| Posted: Tue Dec 27, 2011 6:14 pm Post subject: |
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| Dark Byte wrote: | getProperty for the "Font" property of an object returns an integer.
6.2 has an integerToUserData you can use to convert the integer to a valid Object
(This code ONLY works on the 6.2 alpha, so not really useful. Just showing that it will be possible)
| Code: |
x=getProperty(UDF1_CELabel1,"Font")
x2=integerToUserData(x)
print(object_getClassName(x2))
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prints TFont which can be controlled with the font_ functions |
You can't edit the extra exposed properties like you should be able to though with setProperty.
| Code: |
function onFormClose( sender )
object_destroy( form );
form = nil;
return caFree;
end
onFormClose();
form = createForm( true );
form_onClose( form, onFormClose );
local font = control_getFont( form );
local text = createLabel( form );
control_setCaption( 'This is some text.' );
local bold = getProperty( font, "Style" );
print( 'font: ' .. tostring( font ) .. ' :: bold: ' .. tostring( bold ) );
local props = getPropertyList( font );
for x = 0, strings_getCount( props ) - 1 do
print( 'property: ' .. strings_getString( props, x ) );
end
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Prints out:
font: userdata: 04951380 :: bold:
property: CharSet
property: Color
property: Height
property: Name
property: Orientation
property: Pitch
property: Quality
property: Size
property: Style
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mgr.inz.Player
I post too much
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Joined: 07 Nov 2008
Posts: 4438
Location: W kraju nad Wisla. UTC+01:00
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| Posted: Tue Dec 27, 2011 6:18 pm Post subject: |
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| Code: | x =integerToUserData(getProperty(label,"Font"))
font_setSize(x,18)
font_setColor(x,0x00ffff) -- yellow BBGGRR
setProperty(x, 'Style','fsBold,fsItalic,fsUnderline') |
FULL
| Code: | function FormClose(sender)
object_destroy(MyForm)
MyForm = nil
return caFree --Possible options: caHide, caFree, caMinimize, caNone
end
FormClose()
MyForm = createForm(false)
control_setSize(MyForm, 400,400)
control_setCaption(MyForm,'Canvas Test')
setProperty(MyForm, 'BorderStyle', 'bsSizeable')
form_onClose(MyForm, FormClose)
form_show(MyForm)
MyPanel = createPanel(MyForm)
control_setPosition(MyPanel, 10,10)
control_setSize(MyPanel, 380,380)
setProperty(MyPanel, 'Anchors','akTop,akLeft,akRight,akBottom')
label = createLabel(MyPanel)
control_setPosition(label, 100,200)
control_setCaption(label,'My text')
control_setColor(label,0x0000ff) --RED
x =integerToUserData(getProperty(label,"Font"))
font_setSize(x,18)
font_setColor(x,0x00ffff) -- YELLOW
setProperty(x, 'Style','fsBold,fsItalic,fsUnderline')
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So "can be controlled with the font_ functions" and setProperty
| Description: |
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| Filesize: |
8.52 KB |
| Viewed: |
22560 Time(s) |
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Last edited by mgr.inz.Player on Tue Dec 27, 2011 6:28 pm; edited 1 time in total |
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atom0s
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Location: 127.0.0.1
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| Posted: Tue Dec 27, 2011 6:28 pm Post subject: |
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Ah it has bitshifted values, overlooked that. This works fine too rather then using getProperty for the font:
| Code: |
function onFormClose( sender )
object_destroy( form );
form = nil;
return caFree;
end
onFormClose();
form = createForm( true );
form_onClose( form, onFormClose );
local font = control_getFont( form );
local text = createLabel( form );
control_setCaption( text, 'This is some text.' );
setProperty( font, "Style", "[fsBold, fsItalic, fsUnderline]" );
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hiring_dude
Newbie cheater
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Joined: 28 Nov 2010
Posts: 20
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| Posted: Thu Dec 29, 2011 11:21 am Post subject: |
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Hi,
thanks for the support !
actually i saw you are refering to SVN or newer version, seems i'm losing my time trying to dig bugs probably already fixed (i'm now facing bugs with the ToggleBox..)
if i want an up to date version must we compile it by ourself or something ?
or is it already a build/binary version somewhere ?? 
regards
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atom0s
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Location: 127.0.0.1
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