Karl Zweimüller
UniGraphic-Fork for ST7920-LCD-controller and SH1106. Tested with 128x64 LCD with SPI and 128x64-OLED with IIC
Dependents: UniGraphic-St7920-Test AfficheurUTILECO
Fork of
UniGraphic
by 
GraphicsDisplay
Fork of the UniGraphic-Library for monochrome LCDs with ST7920 controller and 128x64-IIC-OLED-Display with SH1106-Controller
Had to adapt LCD for following reasons:
- Give access to screenbuffer buffer[] to parent class
- pixel() and pixel_read() as they are hardware-dependent
- added reset-pin to IIC-Interface
GraphicDisplay:: sends buffer to LCD when auto_update is set to true.
Testprogram for ST7920 can be found here:
https://developer.mbed.org/users/charly/code/UniGraphic-St7920-Test/
Revision 32:9cd6227dc7a6, committed 2016-05-02
- Comitter:
- dreschpe
- Date:
- Mon May 02 22:44:05 2016 +0000
- Parent:
- 31:ef4225cef157
- Child:
- 33:f87f06292637
- Commit message:
- If char is not in font, print blank.; Useful if you have a number only font and want to format output.
Changed in this revision
| Graphics/GraphicsDisplay.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/Graphics/GraphicsDisplay.cpp Fri Apr 01 06:00:02 2016 +0000
+++ b/Graphics/GraphicsDisplay.cpp Mon May 02 22:44:05 2016 +0000
@@ -275,8 +275,6 @@
unsigned char* zeichen;
unsigned char z,w,v;
- if ((c < firstch) || (c > lastch)) return; // test char range
-
/* // read font parameter from start of array
offset = font[0]; // bytes / char
hor = font[1]; // get hor size of font
@@ -291,23 +289,30 @@
}
}
window(char_x, char_y,fonthor*fontzoomhor,fontvert*fontzoomver); // char box
- zeichen = &font[((c-firstch) * fontoffset) + 4]; // start of char bitmap
- w = zeichen[0]; // width of actual char
- // construct the char into the buffer
- for (j=0; j<fontvert; j++) { // vert line
- for (v=0; v<fontzoomver; v++) { // repeat horiz line for vertical zooming
- for (i=0; i<fonthor; i++) { // horz line
- z = zeichen[(fontbpl * i) + ((j & 0xF8) >> 3)+1];
- b = 1 << (j & 0x07);
- if (( z & b ) == 0x00) {
- // pixel(char_x+i,char_y+j,0);
- window_pushpixel(_background, fontzoomhor); //(color, howmany)
- } else {
- // pixel(char_x+i,char_y+j,1);
- window_pushpixel(_foreground, fontzoomhor);
- }
- }
- } //for each zoomed vert
+ if ((c < firstch) || (c > lastch)) { // test char range - if not exist fill with blank
+ for (i = 0; i < fonthor*fontvert*fontzoomver;i++){
+ window_pushpixel(_background, fontzoomhor); //(color, howmany)
+ }
+ }
+ else{
+ zeichen = &font[((c-firstch) * fontoffset) + 4]; // start of char bitmap
+ w = zeichen[0]; // width of actual char
+ // construct the char into the buffer
+ for (j=0; j<fontvert; j++) { // vert line
+ for (v=0; v<fontzoomver; v++) { // repeat horiz line for vertical zooming
+ for (i=0; i<fonthor; i++) { // horz line
+ z = zeichen[(fontbpl * i) + ((j & 0xF8) >> 3)+1];
+ b = 1 << (j & 0x07);
+ if (( z & b ) == 0x00) {
+ // pixel(char_x+i,char_y+j,0);
+ window_pushpixel(_background, fontzoomhor); //(color, howmany)
+ } else {
+ // pixel(char_x+i,char_y+j,1);
+ window_pushpixel(_foreground, fontzoomhor);
+ }
+ }
+ } //for each zoomed vert
+ }
}
if(fontprop)
{