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Re: Manual for custom Chameleonized Ctrls [message #27091 is a reply to message #27090]

Fri, 25 June 2010 12:31

mrjt
Messages: 705
Registered: March 2007
Location: London

Contributor

In case it may be of use to other people here is example of how to modify a Chameleon style while retaining theming.

Before Chameleon ButtonOptions had a none themed look that I prefered, so when Chameleon was added I reproduced it:
index.php?t=getfile&id=2606&private=0

(both buttons are pressed, I keep the OS look when not pressed)

This is the code that does it:

#include <CtrlLib/CtrlLib.h>
using namespace Upp;

#define IMAGECLASS Img
#define IMAGEFILE <LayoutTest/LayoutTest.iml>
#include <Draw/iml.h>

Image ApplyStyle(const Value &base, const Image &style)
{
	Size sz(30, 30);
	ImageDraw w(30, 30);
	w.DrawRect(sz, SColorFace());
	ChPaint(w, sz, base);
	ChPaint(w, sz, style);
	
	Image img = w;
	ImageBuffer ib(img);
	ib.SetHotSpot(style.GetHotSpot());
	ib.Set2ndSpot(style.Get2ndSpot());
	return (Image)ib;
}

void ButtonOption_HotPress(ButtonOption &bo)
{
	static ButtonOption::Style style;
	style = ButtonOption::StyleDefault();
	style.look[2] = ApplyStyle(style.look[2], Img::HotPress());;
	bo.SetStyle(style);
}

GUI_APP_MAIN
{
	TopWindow wnd;
	ButtonOption normal, hotpress;
	
	wnd.SetRect(Size(140, 32));
	wnd.CenterScreen();
	
	ButtonOption_HotPress(hotpress);

	normal.SetLabel("Normal").LeftPos(4, 64).TopPos(4, 24);
	hotpress.SetLabel("HotPress").LeftPos(72, 64).TopPos(4, 24);
	wnd.Add(normal);
	wnd.Add(hotpress);
	
	wnd.Run();
}

What it does is render the existing style value to a buffer (since it's not an Image - it's an os theme) and then draw my own image over the top.

Attachment: HotPressWnd.png
(Size: 2.76KB, Downloaded 1220 times)

[Updated on: Fri, 25 June 2010 12:44]

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