Component: GLCD Base (Graphical Library)

Author	Matrix Ltd
Version	35.0
Category	Graphical Library

GLCD Base component

Base graphical LCD with simulation only interface to allow graphics to be drawn in simulation. Suitable for inheriting to simplify the creation of further graphical LCD components.

Version information

Library Version, Component Version, Date, Author, Info
11, 1.0, 22-07-24, BR, Added DrawArc and DrawRoundedRectangle functions

Library Version, Component Version, Date, Author, Info
33, 3.1, 13-06-24, BR, Added user selectable simulated mask for round displays
34, 3.1, 17-07-24, MW, Fixed bug where Arc is not displyed when Resolution is 0
35, 35, 17-07-24, MW, Added an additioanl font count of 4
35, 35, 17-07-24, MW, Changed a variable type to allow larger font sizes

Detailed description

Font sizes

Standard Fonts

0 = Normal

1 = 2 x Width

2 = 2 x Width and 2 x Height

3 = 2 x Height

Extended Fonts

4 = 2 x Width and 3 x Height

5 = 2 x Width and 4 x Height

6 = 2 x Width and 5 x Height

7 = 2 x Width and 6 x Height

8 = 3 x width

9 = 3 x Width and 2 x Height

10 = 3 x Width and 3 x Height

11 = 3 x Width and 4 x Height

12 = 3 x Width and 5 x Height

13 = 3 x Width and 6 x Height

14 = 4 x width

15 = 4 x Width and 2 x Height

16 = 4 x Width and 3 x Height

17 = 4 x Width and 4 x Height

18 = 4 x Width and 5 x Height

19 = 4 x Width and 6 x Height

20 = 5 x width

21 = 5 x Width and 2 x Height

22 = 5 x Width and 3 x Height

23 = 5 x Width and 4 x Height

24 = 5 x Width and 5 x Height

25 = 5 x Width and 6 x Height

26 = 6 x width

27 = 6 x Width and 2 x Height

28 = 6 x Width and 3 x Height

29 = 6 x Width and 4 x Height

30 = 6 x Width and 5 x Height

31 = 6 x Width and 6 x Height

Examples

EBM001 Basic Example

EBM001 gLCD Example File

EBM001 Example

Example should show the following on the display on the panel and on the hardware.

EBM001 Maze Builder

Maze Builder gLCD

Example to draw a randomly generated 2D maze on an EBM001 graphical display.

EBM001 Drawing 3D Objects With Perspective

3D Manipulations

Example should show the following on the display on the panel and on the hardware. The two switches allow you to move closer to or away from the object. The perspective provides more and more distortion to the object the closer you get.

Macro reference

BPlot

	BPlot
Sets a pixel with the current background colour at pixel location X, Y.
- UINT	X1
- UINT	Y1
- VOID	Return

ClearDisplay

	ClearDisplay
This macro clears the display of any previous output by overwriting the entire display with the background colour.
- VOID	Return

DrawArc

	DrawArc
Draws an arc either as an outline or as a filled object.
- UINT	X
Center X coordinate
- UINT	Y
Center Y coordinate
- UINT	Radius
Radius, distance of edge from the centre coordinates
- FLOAT	StartAngle
Angle to start drawing, in degrees
- FLOAT	EndAngle
Angle to end drawing, in degrees
- UINT	Resolution
Number of lines to draw from the center to the outer edge
- BYTE	Transparent
Chooses the transparency - 0 = Arc contains background colour, 1 = Arc contains previous pixel data.
- BYTE	Solid
Chooses to fill with colour - 0 = Arc transparency data, 1 = Arc contains foreground colour.
- VOID	Return

DrawBezier

	DrawBezier
Draws a quadratic Bezier curve with the current foreground colour from pixel location X0, Y0 to pixel location X2, Y2 using control point CX, CY.
- UINT	X0
Start X coordinate
- UINT	Y0
Start Y coordinate
- UINT	CX
Control point X coordinate
- UINT	CY
Control point Y coordinate
- UINT	X2
End X coordinate
- UINT	Y2
End Y coordinate
- UINT	Resolution
Number of segments to approximate the curve, 0 chooses an automatic value based on curve size.
- VOID	Return

DrawCircle

	DrawCircle
Draws a circle object on the display with the center of the circle at the location X,Y
- UINT	X
X Coordinate for the center of the circle
- UINT	Y
Y coordinate for the center of the circle
- UINT	Radius
Radius of the circle specified in pixels
- BYTE	Transparent
0=Fill inside circle using background colour / 1=Draw outer circle only
- BYTE	Solid
0=Use Transparent Setting / 1=Fill with foreground colour
- VOID	Return

DrawEllipse

	DrawEllipse
Draws an ellipse object on the display with the center of the ellipse at the location X,Y
- UINT	X
X Coordinate for the center of the circle
- UINT	Y
Y coordinate for the center of the circle
- UINT	XRadius
Radius of the circle on the X axis specified in pixels
- UINT	YRadius
Radius of the circle on the Y axis specified in pixels
- BYTE	Transparent
0=Fill inside circle using background colour / 1=Draw outer circle only
- BYTE	Solid
0=Use Transparent Setting / 1=Fill with foreground colour
- VOID	Return

DrawLine

	DrawLine
Draws a line with the current foreground colour from pixel location X1, Y1 to pixel location X2, Y2.
- UINT	X1
- UINT	Y1
- UINT	X2
- UINT	Y2
- VOID	Return

DrawRectangle

	DrawRectangle
Draws a rectangle with the current foreground colour from pixel loaction X1, Y1 to pixel location X2, Y2.
- UINT	X1
- UINT	Y1
- UINT	X2
- UINT	Y2
- BYTE	Transparent
Chooses the transparency of the box - 0 = Box contains background colour, 1 = Box contains previous pixel data.
- BYTE	Solid
Chooses to fill the box with colour - 0 = Box contains transparency data, 1 = Box contains foreground colour.
- VOID	Return

DrawRoundedRectangle

	DrawRoundedRectangle
Draws a rectangle with rounded corners
- UINT	X1
- UINT	Y1
- UINT	X2
- UINT	Y2
- UINT	Radius
- BYTE	Transparent
Chooses the transparency of the box - 0 = Box contains background colour, 1 = Box contains previous pixel data.
- BYTE	Solid
Chooses to fill the box with colour - 0 = Box contains transparency data, 1 = Box contains foreground colour.
- VOID	Return

FastPlot

	FastPlot
Sets a pixel with the current foreground colour at current pixel location.
- VOID	Return

Initialise

	Initialise
The Init macro must be called once to initialise the Graphical LCD display before any other Graphical LCD component macros are called.
- VOID	Return

Plot

	Plot
Sets a pixel with the current foreground colour at pixel location X, Y.
- UINT	X1
- UINT	Y1
- VOID	Return

Print

	Print
This macro prints a string of characters to the Graphical LCD.
- STRING	Str
String of characters to send to the display.
- UINT	X1
X pixel coordinate to set the output string position.
- UINT	Y1
Y pixel coordinate to set the output string position.
- BYTE	Font
Selects which Font to use Range: 0 to Font Count
- BYTE	Transparent
Specifies if the background of the text is drawn - 0 = Background colour is drawn, 1 = Background colour not drawn.
- VOID	Return

PrintNumber

	PrintNumber
This macro prints a decimal number to the Graphical LCD.
- INT	Number
Byte or Integer number to send to the display.
- UINT	X
X pixel coordinate to set the output string position.
- UINT	Y
Y pixel coordinate to set the output string position.
- BYTE	Font
Range: 0 to 31 - 0=5x8, 1=10x8, 2=10x16, 3=5x16, 4-31=Extended Sizes
- BYTE	Transparent
Specifies if the background of the text is drawn - 0 = Background colour is drawn, 1 = Background colour not drawn.
- VOID	Return

ReadFontByte

	ReadFontByte
Gets a byte from the selected embedded ASCII font data.
- BYTE	Font
Font selection range: 0 to (NumFonts - 1)
- BYTE	Character
ASCII character for example 'A' or 65
- UINT	ByteIndex
Font column Ranging 0-4
- BYTE	Return

ReadFontStat

	ReadFontStat
Gets a stat from the selected embedded ASCII font data.
- BYTE	Font
Font selection range: 0 to (NumFonts - 1)
- BYTE	Index
0=SpaceWidth, 1=PixelHeight
- BYTE	Return

ReadFontWidth

	ReadFontWidth
Reads the number of pixel columns used in the selected font
- BYTE	Font
Font selection range: 0 to (NumFonts - 1)
- BYTE	Character
ASCII character to get the pixel width e.g. 'A' or 65
- BYTE	Return

SetBackgroundColour

	SetBackgroundColour
Specifies the colour of the background by creating a mixture of red, green and blue.
- BYTE	Red
0 - 255 where 0 = no red and 255 = maximum red
- BYTE	Green
0 - 255 where 0 = no green and 255 = maximum green
- BYTE	Blue
0 - 255 where 0 = no blue and 255 = maximum blue
- VOID	Return

SetDisplayOrientation

	SetDisplayOrientation
Controls the way data is printed out on the display allowing multiple different viewing orientations. Default is 0.
- BYTE	Orientation
0=Default, 1=90°CW, 2=180°CW, 3=270°CW
- VOID	Return

SetExternalFont

	SetExternalFont
Allows one of the default external font files to be switched out for a different font file.
- BYTE	Font
Range: 0 to (FontCount - 1)
- STRING	Filename
New font filename
- BYTE	CharacterSpacing
Number of pixel columns to use between each character
- BYTE	SpaceWidth
Number of pixel columns to use for a space character
- VOID	Return

SetFontScaler

	SetFontScaler
- BYTE	ScaleX
- BYTE	ScaleY
- VOID	Return

SetForegroundColour

	SetForegroundColour
Specifies the colour of the foreground by creating a mixture of red, green and blue.
- BYTE	Red
0 - 255 where 0 = no red and 255 = maximum red
- BYTE	Green
0 - 255 where 0 = no green and 255 = maximum green
- BYTE	Blue
0 - 255 where 0 = no blue and 255 = maximum blue
- VOID	Return

Window

	Window
Specifies a specific window in the pixels to draw to.
- UINT	X1
- UINT	Y1
- UINT	X2
- UINT	Y2
- VOID	Return

Property reference

	Properties
	Dimensions
	Pixel Width
Width of gLCD canvas measured in pixels.
	Pixel Height
Heigt of gLCD canvas measured in pixels.
	Colour
	Monochrome
Specifies if the display is capable of colour or monochrome only.
	Foreground Colour
Specifies the initial foreground colour for shapes and text.
	Background Colour
Specifies the initial background color.
	Bit Depth
	Colour Bit Depth
Total color bit depth for the display.
	Red Bit Depth
Specifies the red bit depth for the display.
	Green Bit Depth
Specifies the green bit depth for the display.
	Blue Bit Depth
Specifies the blue bit depth for the display.
	Fonts
	External Fonts
Defines how fonts are stored when compiled to a microcontroller. No - Font data is stored in the microcontroller ROM. Yes - Font data is stored externally on a file source such as an SD card.
	Font Count
Specifies the number of fonts available to use on the display.
	Font 0
	Font
Font picker to decide which font to use on your display.
	BinaryFilename
	Bytes Required
Number of bytes required in program memory to store the selected font.
	Character Spacing
Sets the number of blank pixels between each character when printing text.
	Simulation Mode
	Show Background Elements
Show or hide features like the title and background.
	Component Label
	User Label Text
Text to display
	Component Label Scale
The label scale can be change if the amout of text is too wide for the display
	Display Type
Chooses which method to use when drawing to the gLCD component The bitmap is the more common mode but may run slowly on some machines. The point cloud should run faster but may use more memory.
	Embed Font Set
Specifies if the font set is included with the embedded downloadable code. Some display types have in an built font and text functions so the embedded font set can be disabled to reduce code overhead. For other display types the embedded font data should be enable to allow the print functions to work correctly.
	Embed Font Width
	Num Parents
Number of parent levels to jump up to get the auto title name. For most GLCDs it will be 1. For most Alpha LCDs it will be 2.
	Show GLCD Icon
Show the GLCD connectivity icon, Set to Yes for GLCDs and No for other none standard things e.g. Alphanumeric LCDs.
	TouchHandler
	Physical Orientation
Rotates the simulated canvas to match the orientation of real world hardware.
	AutoRefresh
	Round Mask
Allows a round mask to be applied allowing a circular display to be simulated.
	Export Binary Fonts
Allows all selected fonts to be exported as a binary format that can be loaded from an SD card. When set to yes loops through all selected fonts and outputs .bin files into the project directory. May take some time to complete, resets back to no when complete.
	Export All Fonts

Component Source Code

Please click here to download the component source project: FC_Comp_Source_GLCD_base.fcfx

Please click here to view the component source code (Beta): FC_Comp_Source_GLCD_base.fcfx