Pallavi Prasad
uVGA II for display using vga
Diff: TFT_4DGL_Text.cpp
- Revision:
- 0:6741e7724181
diff -r 000000000000 -r 6741e7724181 TFT_4DGL_Text.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/TFT_4DGL_Text.cpp Thu Oct 11 20:12:02 2012 +0000
@@ -0,0 +1,273 @@
+//
+// TFT_4DGL is a class to drive 4D Systems TFT touch screens
+//
+// Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
+//
+// TFT_4DGL is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// TFT_4DGL is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with TFT_4DGL. If not, see <http://www.gnu.org/licenses/>.
+
+#include "mbed.h"
+#include "TFT_4DGL.h"
+#include <stdarg.h>
+#include <stdio.h>
+
+
+//****************************************************************************************************
+void TFT_4DGL :: set_font(char mode) { // set font size
+ char command[2]= "";
+
+ int w, h, fx = 8, fy = 8;
+
+ command[0] = SETFONT;
+ command[1] = mode;
+
+ current_font = mode;
+
+ if (current_orientation == IS_PORTRAIT) {
+ w = SIZE_X;
+ h = SIZE_Y;
+ } else {
+ w = SIZE_Y;
+ h = SIZE_X;
+ }
+
+ switch (mode) {
+ case FONT_5X7 :
+ fx = 6;
+ fy = 8;
+ break;
+ case FONT_8X8 :
+ fx = 8;
+ fy = 8;
+ break;
+ case FONT_8X12 :
+ fx = 8;
+ fy = 12;
+ break;
+ case FONT_12X16 :
+ fx = 12;
+ fy = 16;
+ break;
+ }
+
+ max_col = w / fx;
+ max_row = h / fy;
+
+ writeCOMMAND(command, 2);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: text_mode(char mode) { // set text mode
+ char command[2]= "";
+
+ command[0] = TEXTMODE;
+ command[1] = mode;
+
+ writeCOMMAND(command, 2);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: text_char(char c, char col, char row, int color) { // draw a text char
+ char command[6]= "";
+
+ command[0] = TEXTCHAR;
+
+ command[1] = c;
+ command[2] = col;
+ command[3] = row;
+
+ int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
+ int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
+ int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
+
+ command[4] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
+ command[5] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
+
+ writeCOMMAND(command, 8);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: graphic_char(char c, int x, int y, int color, char width, char height) { // draw a graphic char
+ char command[10]= "";
+
+ command[0] = GRAPHCHAR;
+
+ command[1] = c;
+
+ command[2] = (x >> 8) & 0xFF;
+ command[3] = x & 0xFF;
+
+ command[4] = (y >> 8) & 0xFF;
+ command[5] = y & 0xFF;
+
+ int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
+ int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
+ int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
+
+ command[6] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
+ command[7] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
+
+ command[8] = width;
+
+ command[9] = height;
+
+ writeCOMMAND(command, 10);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: text_string(char *s, char col, char row, char font, int color) { // draw a text string
+
+ char command[1000]= "";
+ int size = strlen(s);
+ int i = 0;
+
+ command[0] = TEXTSTRING;
+
+ command[1] = col;
+ command[2] = row;
+
+ command[3] = font;
+
+ int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
+ int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
+ int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
+
+ command[4] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
+ command[5] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
+
+ for (i=0; i<size; i++) command[6+i] = s[i];
+
+ command[6+size] = 0;
+
+ writeCOMMAND(command, 7 + size);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: graphic_string(char *s, int x, int y, char font, int color, char width, char height) { // draw a text string
+
+ char command[1000]= "";
+ int size = strlen(s);
+ int i = 0;
+
+ command[0] = GRAPHSTRING;
+
+ command[1] = (x >> 8) & 0xFF;
+ command[2] = x & 0xFF;
+
+ command[3] = (y >> 8) & 0xFF;
+ command[4] = y & 0xFF;
+
+ command[5] = font;
+
+ int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
+ int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
+ int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
+
+ command[6] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
+ command[7] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
+
+ command[8] = width;
+
+ command[9] = height;
+
+ for (i=0; i<size; i++) command[10+i] = s[i];
+
+ command[10+size] = 0;
+
+ writeCOMMAND(command, 11 + size);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: text_button(char *s, char mode, int x, int y, int button_color, char font, int text_color, char width, char height) { // draw a text string
+
+ char command[1000]= "";
+ int size = strlen(s);
+ int i = 0, red5, green6, blue5;
+
+ command[0] = TEXTBUTTON;
+
+ command[1] = mode;
+
+ command[2] = (x >> 8) & 0xFF;
+ command[3] = x & 0xFF;
+
+ command[4] = (y >> 8) & 0xFF;
+ command[5] = y & 0xFF;
+
+ red5 = (button_color >> (16 + 3)) & 0x1F; // get red on 5 bits
+ green6 = (button_color >> (8 + 2)) & 0x3F; // get green on 6 bits
+ blue5 = (button_color >> (0 + 3)) & 0x1F; // get blue on 5 bits
+
+ command[6] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
+ command[7] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
+
+ command[8] = font;
+
+ red5 = (text_color >> (16 + 3)) & 0x1F; // get red on 5 bits
+ green6 = (text_color >> (8 + 2)) & 0x3F; // get green on 6 bits
+ blue5 = (text_color >> (0 + 3)) & 0x1F; // get blue on 5 bits
+
+ command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
+ command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
+
+ command[11] = width;
+
+ command[12] = height;
+
+ for (i=0; i<size; i++) command[13+i] = s[i];
+
+ command[13+size] = 0;
+
+ writeCOMMAND(command, 14 + size);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: locate(char col, char row) { // place text curssor at col, row
+ current_col = col;
+ current_row = row;
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: color(int color) { // set text color
+ current_color = color;
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: putc(char c) { // place char at current cursor position
+
+ text_char(c, current_col++, current_row, current_color);
+
+ if (current_col == max_col) {
+ current_col = 0;
+ current_row++;
+ }
+ if (current_row == max_row) {
+ current_row = 0;
+ }
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: puts(char *s) { // place string at current cursor position
+
+ text_string(s, current_col, current_row, current_font, current_color);
+
+ current_col += strlen(s);
+
+ if (current_col >= max_col) {
+ current_row += current_col / max_col;
+ current_col %= max_col;
+ }
+ if (current_row >= max_row) {
+ current_row %= max_row;
+ }
+}
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