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Showing Images in a Child Frame [message #17710]

Wed, 27 August 2008 11:46

SirKline
Messages: 3
Registered: August 2008
Location: Germany

Junior Member

Hi There,

I'm not sure how trivial my question is, but i just can't find out how to display images in a child frame. I started windows programming with upp so my windows programming skills are not so well.

Anyway my paint() is only working with the top frame and i can't figure out how to paint in a child frame.

Thanks in Advance,

SirKline

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Re: Showing Images in a Child Frame [message #17717 is a reply to message #17710]

Wed, 27 August 2008 13:23

mrjt
Messages: 705
Registered: March 2007
Location: London

Contributor

Hi and welcome!

I'm afraid you haven't really given enough information for a definitive answer, and there are probably several ways of doing it depending on exactly how you want it to look.

Paint() is clipped to the client area of a ctrl. Frames are objects and responsible for drawing themselves. The simplest way :

// Member variable for the frame (change to Top/Left etc.)
FrameRight<ImageCtrl> imageframe;
...
// In constructor
Image img = AppImg::some_image();
imageframe.SetImage(img); 
AddFrame(imageframe.Width(img.GetWidth()));

But if that's not what you're after, post some more info and we'll help you out.

[Updated on: Wed, 27 August 2008 13:27]

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Re: Showing Images in a Child Frame [message #17720 is a reply to message #17717]

Wed, 27 August 2008 15:38

SirKline
Messages: 3
Registered: August 2008
Location: Germany

Junior Member

Sorry, i was too unspecific / wrong in my question.

Actually my problem is not a child frame but a child window.

I'm working on a card game and i want the possibility to show the last played set of cards in a child window.

I have no problem invoking the window, but i can't show the cards in it.

I hope this is a better explanation.

Please excuse my english since it's no native language.

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Re: Showing Images in a Child Frame [message #17724 is a reply to message #17720]

Wed, 27 August 2008 16:01

cbpporter
Messages: 1427
Registered: September 2007

Ultimate Contributor

What do you mean by child window? Do you mean a widget/control/UI element that is placed inside your TopWindow?

If the answer is yes, you need to create a custom control and override it's Paint method, then place that control normally inside you window and it will paint itself. Each widget, including TopWindow only handles it's own painting via the Paint method. Creating the custom control is simple, just choose you parent class for it, something like StaticRect. If you do not want to paint anything, just want to display an Image loaded from the disk, you do not need to create a custom control, just use one that is capable of displaying an image and insert that in you window.

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Re: Showing Images in a Child Frame [message #17736 is a reply to message #17724]

Wed, 27 August 2008 18:19

SirKline
Messages: 3
Registered: August 2008
Location: Germany

Junior Member

I have a main window, where you play the game. If requested i want to show the last set ( 4 cards) via a menu-entry in a child window.

Right now I'm using an empty *.lay layout with an ok button and wanted to draw the 4 cards (stored in cards.iml) on the layout?

Is this a wrong way?

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Re: Showing Images in a Child Frame [message #17738 is a reply to message #17736]

Wed, 27 August 2008 19:11

mrjt
Messages: 705
Registered: March 2007
Location: London

Contributor

I would suggest creating a custom widget based on Ctrl, and overloading it's Paint method to draw the cards.

Something like:

class CardView : public Ctrl
  virtual void Paint(Draw &w) {
    w.DrawRect(GetSize(), SColorFace);
    // Draw cards
  }
};

As long as you declare this before you include your .lay file (or include a header with it in) you can add CardView to your child window's layout using 'User class' from the Layout Manager context menu.

[Updated on: Wed, 27 August 2008 19:12]

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Re: Showing Images in a Child Frame [message #18021 is a reply to message #17738]

Sun, 07 September 2008 08:42

mirek
Messages: 14255
Registered: November 2005

Ultimate Member

mrjt wrote on Wed, 27 August 2008 13:11

I would suggest creating a custom widget based on Ctrl, and overloading it's Paint method to draw the cards.

Something like:

class CardView : public Ctrl
  virtual void Paint(Draw &w) {
    w.DrawRect(GetSize(), SColorFace);
    // Draw cards
  }
};

BTW, you can even declare this after including .lay and leave the type of widget empty, then declare it inside dialog struct...

Mirek

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