ZoomBarImage

This simple class holds information about a ZoomBar button, such as normal bitmaps, disabled bitmap, button label, etc...

Inheritance Diagram

Inheritance diagram for class ZoomBarImage

Methods Summary

__init__	Default class constructor.
Enable	Enables/disables a button.
GetBitmap	Returns the button bitmap, which may be a scaled up version of the original
GetLabel	Returns the button label (if any).
GetPosition	Returns the button position.
GetSize	Returns the button size.
IsEnabled	Returns True if the button is enabled, False otherwise.
IsZoomed	Returns True if the button is zoomed, False otherwise.
LoopScales	Caches the bitmaps at various zoom levels to avoid calling every time
SetCenterZoom	Sets to zoom from the center.
SetLabel	Sets the button label.
SetSize	Sets the button size.
SetupProps	Set up the button position and size.
SetZoomFactor	Sets the zoom factor for the button. Larger number gives a greater zoom
ZoomImage	Zooms the button bitmap depending on the mouse x position.

Class API

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class ZoomBarImage(object)

This simple class holds information about a ZoomBar button, such as normal bitmaps, disabled bitmap, button label, etc...

Methods

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__init__(self, parent, bitmap, disabledBmp=NullBitmap, label="")

Default class constructor.

Parameters:

• parent – the main ZoomBar window;
• bitmap – the button bitmap, an instance of Bitmap;
• disabledBmp – the button bitmap when the button is in a disabled state;
• label – the button label.

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Enable(self, enable=True)

Enables/disables a button.

Parameters:enable – True to enable a button, False to disable it.

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GetBitmap(self)

Returns the button bitmap, which may be a scaled up version of the original bitmap is the button is being zoomed.

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GetLabel(self)

Returns the button label (if any).

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GetPosition(self)

Returns the button position.

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GetSize(self)

Returns the button size.

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IsEnabled(self)

Returns True if the button is enabled, False otherwise.

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IsZoomed(self)

Returns True if the button is zoomed, False otherwise.

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LoopScales(self, size)

Caches the bitmaps at various zoom levels to avoid calling every time image.Scale on the button bitmap.

Parameters:size – the original button size, in pixels.

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SetCenterZoom(self, center=True)

Sets to zoom from the center.

Parameters:center – if True button zooms upwards.

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SetLabel(self, label)

Sets the button label.

Parameters:label – a string specifying the button label. May be an empty string for no label.

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SetSize(self, width, height)

Sets the button size.

Parameters:

• width – the button width;
• height – the button height.

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SetupProps(self, buttonSize)

Set up the button position and size.

Parameters:buttonSize – the button original size (not zoomed), in pixels.

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SetZoomFactor(self, zoom)

Sets the zoom factor for the button. Larger number gives a greater zoom effect.

Parameters:zoom – a floating point number, greater than or equal to 1.0.

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ZoomImage(self, nxcoord)

Zooms the button bitmap depending on the mouse x position.

Parameters:nxcoord – the mouse x position relative to the button center.