BGRAControls

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Revision as of 23:52, 16 November 2011 by Lainz (talk | contribs) (BGRASamples unit: added screenshot)

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Install

You can use TortoiseSVN to download the svn repository and TortoiseGIT to download the git repository.

We're using BGRABitmap SVN to develop BGRAControls. Important changes in BGRABitmap can stop working BGRAControls.

1) Download BGRABitmap

Release: https://sourceforge.net/projects/lazpaint/files/src/

Latest SVN: svn co https://lazpaint.svn.sourceforge.net/svnroot/lazpaint lazpaint

Install BGRABitmap with the file bgrabitmap.lpk

2) Download BGRAControls

Release: https://sourceforge.net/projects/bgracontrols/files/

Latest GIT: git://bgracontrols.git.sourceforge.net/gitroot/bgracontrols/bgracontrols

Install BGRAControls with the file bgracontrols.lpk

Overview

Authors:

Dibo (package founder and maintainer, author: TBGRAImageList, TBGRASpeedButton, TBGRAButton, TBGRAPanel)

Lainz (package maintainer, author: TBGRAImageButton, TBGRAImageToggleBox, TBGRASpriteAnimation, TBGRALabelFX, TBGRAWin7ToolBar)

Circular (package maintainer, author: TBGRAKnob, TBGRAFlashProgressBar, TBGRAVirtualScreen, TBGRAShape, TBGRAGraphicControl)

Emerson Cavalcanti (author: TBGRAImageManipulation)

codedeep (author: TBGRALabel)

License: Modified LGPL.

As many people know, Lazarus GTK doesn't have full alpha support. I created a set of components which use TBGRABitmap for drawing icons, so it partially solves the problem with alpha in GTK. But this components set is not only a GTK patch but has more fancy components which are using the power of the BGRABitmap package.

Screenshots: Some shots of the project 'testbgracontrols'.

testbgrac1.png

testbgracontrols > Main.

testbgrac2.png

testbgracontrols > Windows 7 ToolBar.

testbgrac4.png

testbgracontrols > Ribbon.

Related Articles

BGRAButton Gallery - Gallery of buttons with source code to use in your projects with BGRAButton.

BGRASpriteAnimation - Usage of the sprite animation component.

uE_Controls - Other controls developed with BGRABitmap.

BGRABitmap - The library used to create this controls.

LazPaint - A paint program developed with Lazarus and BGRABitmap.

Using

Drop and use like normal component.

Button:

  • TBGRAButton
  • TBGRAImageButton
  • TBGRAImageToggleBox
  • TBGRASpeedButton

Label

  • TBGRALabel
  • TBGRALabelFX

Panel

  • TBGRAPanel
  • TBGRAVirtualScreen

Image

  • TBGRAGraphicControl
  • TBGRAImageList
  • TBGRAImageManipulation
  • TBGRASpriteAnimation

Other

  • TBGRAFlashProgressBar
  • TBGRAKnob
  • TBGRAShape
  • TBGRAWin7ToolBar

TBGRAImageList

Use as replace of: TImageList

Before:

before-TImageList.png

After:

after-TBGRAImageList.png

Component which inherits from TImageList. So each control (tested on TToolBar and TTreeView) which is using TImageList.Draw method for drawing icons, automatically can have alpha support. Just use this component instead of TImageList. This component has been written for enabling GTK alpha, so on Windows (and other interfaces) it works just like normal TImageList (it doesn't use BGRABitmap for drawing)

TBGRASpeedButton

Use as replace of: TSpeedButton

BGRASpeedButton.png

Component which inherits from TSpeedButton and draws the glyph using TBGRABitmap. This component has been written for enabling GTK alpha, so on Windows (and other interfaces) it works just like normal TImageList (it doesn't use BGRABitmap for drawing)

TBGRAButton

Use as replace of: TButton

bgrabutton.png

Customizable graphic component which is using only BGRABitmap functions for drawing. This component is insensitive for -dGTK_ONLY switch. Demo project included in package.

Functionality:

  • Gradients
  • Double gradients
  • Rounding
  • Border style, width and color
  • Drop down list
  • Glyph
  • States (normal, hover, clicked)
  • Caption with shadow
  • Full alpha and antialias support
  • Can work as image if no caption is set (has no stretch function yet)

TBGRAPanel

Use as replace of: TPanel

Simple TPanel descendant which can have gradient background. Created especially for TBGRAButton (for creating a nice looking toolbar for bgrabuttons). This component is insensitive for -dGTK_ONLY switch

TBGRAKnob

BC-Bgraknob.png

Graphic knob component created by circular.

TBGRAFlashProgressBar

Use as replace of: TProgressBar

BC-Bgraflashprogressbar.png

Flash progressbar created by circular.

TBGRAImageManipulation

Use as replace of: TImage

Component to facilitate the importation of images in an application.

In the current version you can import an image and cut out keeping the aspect ratio (or not). For example, if you want to import photos using the 3x4 ratio, adjust the 'ratio' property to 3:4. If import an image with different size, the component will ensure that the image meets the proportions of the desired dimensions.

You can determine the minimum size of the image adjusting the properties 'MinWidth'and 'MinHeight'.

You can rotate the image using functions builtin.

See demo of component:

bgraimagemanipulation.jpg

After retrieving the image modified by the component, just put the image into your destination using the stretch. It is obvious that the target must have the same ratio chosen on component for do not distort the final result.

TBGRAImageButton

Use as replace of: TButton

bgraimagebutton.png

Component used to create a button with 4 states from Bitmap. Has Caption support with Shadow.

The bitmap must contain the 4 states (from top to bottom, with the same Height) in the following order: normal, enter, pressed, disabled.

Example Button:

samplebgraimagebutton.png

Example Button (with Alpha):

samplebgraimagebuttonalpha.png

TBGRAVirtualScreen

Use as replace of: TPanel

The principle is to draw on a memory bitmap.

The component has a specific event, OnRedraw, which is called when the whole bitmap needs to be redrawn. It happens at the beginning, when resizing and when the Redraw method is called.

Otherwise, it is possible to modify the Bitmap property and call Invalidate or Repaint, to avoid erasing the whole bitmap content.

TBGRAShape

Use as replace of: TShape

samplebgrashape.png

The component has full alpha support and you can put the number of polygons you want with rounded borders & gradients (linear, radial, diamond, reflected).

TBGRAImageToggleBox

REMOVED IN VER 1.1.0.7.

Use as replace of: TToggleBox

Component used to create a toggle box from Bitmap.

The bitmap must contain 8 images (from top to bottom, with the same Height) in the following order: unchecked normal, unchecked enter, unchecked pressed, unchecked disabled for Unchecked state and checked normal, checked enter, checked pressed, checked disabled for Normal state.

Example toggle box:

sampletogglebox.png

TBGRAGraphicControl

Use as replace of: TPaintBox

TBGRAGraphicControl, which allows to draw your component by yourself with alpha blending.

TBGRASpriteAnimation

Use as replace of: TImage

Read more in the article BGRASpriteAnimation.

bgraspriteanimation.png

With this you can do animations from bitmap. You need an image with all the frames layout in in a horizontal position.

It has the ability to specify how many times the animation should be played (0 for infinite, 1, 2, etc) and static to stop the animation, is capable to specify the speed and direction and support transparency.

Features:

  • Animation: invert, position, lap, speed, static, repeat.
  • Sprite: fill opacity (global transparency), flip mode (horizontal, vertical, both), key color (transparent color), resample (normal or fine resample modes). AutoSize.
  • AnimatedGifToSprite: convert an animated gif to a BGRABitmap sprite.

TBGRALabel

Use as replace of: TLabel

Label component based on TBGRAButton.

Features:

  • Caption with shadow or not
  • Full alpha and antialias support or not
  • WordWarp or not
  • Caption with Property Editor Multiline

TBGRALabelFX

Use as replace of: TLabel

bgralabelfx.png

Features:

  • Outline
  • Shadow

ToDo:

  • Use BGRATextFX multicolor, textures.
  • etc.

TBGRAWin7ToolBar

bgrawin7toolbar.png

Is a TBGRAVirtualScreen descendant with some default child sizing, and nice Win7 ToolBar background.

BGRASamples unit

This unit has sample drawings, styles for buttons and colors used in different UI.

ioselements.png

  • Accent Color: the colors used in the Windows Phone. The accent color can be used in TBGRAButton and TBGRAImageButton (see the different procedures).
  • Facebook button color: gray, green and blue, with a procedure to create an image in the normal or pressed state, also to use this style in a TBGRAImageButton.
  • TBGRASampleStyle: Styles for TBGRAButton ('Default', 'Flash Player', 'Windows 7 ToolBar', 'Windows 7 ToolBar Smooth', 'Windows 7', 'Office 2010', 'Mac OSX Lion', 'Windows 7 Cristal').
  • iOS Elements: Draw a gray bar, the blue toolbar and a tiled background, the same elements used in the iOS screen.
  • Glass: used in testbgracontrols, it show an image in a virtualscreen and apply blur in the buttons area.
  • Drawings: flash player body and toolbar, windows 7 toolbar.
  • Some other usefull procedures to work with TBGRAButton and TBGRAImageButton.