tools/examples/lcd/tft/drawing_basic/main.c

   1 /**************************************************************************/
   2 /*!
   3     @file     main.c
   4     @author   K. Townsend (microBuilder.eu)
   5
   6     @section LICENSE
   7
   8     Software License Agreement (BSD License)
   9
  10     Copyright (c) 2011, microBuilder SARL
  11     All rights reserved.
  12
  13     Redistribution and use in source and binary forms, with or without
  14     modification, are permitted provided that the following conditions are met:
  15     1. Redistributions of source code must retain the above copyright
  16     notice, this list of conditions and the following disclaimer.
  17     2. Redistributions in binary form must reproduce the above copyright
  18     notice, this list of conditions and the following disclaimer in the
  19     documentation and/or other materials provided with the distribution.
  20     3. Neither the name of the copyright holders nor the
  21     names of its contributors may be used to endorse or promote products
  22     derived from this software without specific prior written permission.
  23
  24     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
  25     EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  26     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  27     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
  28     DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  29     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  30     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  31     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  32     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  33     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34 */
  35 /**************************************************************************/
  36 #include <stdlib.h>
  37 #include <stdio.h>
  38 #include <string.h>
  39
  40 #include "projectconfig.h"
  41 #include "sysinit.h"
  42
  43 #include "core/gpio/gpio.h"
  44 #include "core/systick/systick.h"
  45
  46 #include "drivers/displays/tft/lcd.h"
  47 #include "drivers/displays/tft/drawing.h"
  48 #include "drivers/displays/tft/touchscreen.h"
  49 #include "drivers/displays/tft/dialogues/alphanumeric.h"
  50
  51 #include "drivers/displays/tft/fonts/dejavusans9.h"
  52 #include "drivers/displays/tft/fonts/dejavusansbold9.h"
  53 #include "drivers/displays/tft/fonts/dejavusansmono8.h"
  54
  55 /**************************************************************************/
  56 /*!
  57     Main program entry point.  After reset, normal code execution will
  58     begin here.
  59 */
  60 /**************************************************************************/
  61 int main(void)
  62 {
  63   // Configure cpu and mandatory peripherals
  64   systemInit();
  65
  66   #if !defined CFG_TFTLCD
  67     #error "CFG_TFTLCD must be enabled in projectconfig.h for this test"
  68   #endif
  69   #if defined CFG_INTERFACE
  70     #error "CFG_INTERFACE must be disabled in projectconfig.h for this test (to save space)"
  71   #endif
  72
  73   // Clear the screen
  74   // ---------------------------------------------------------------------
  75   drawFill(COLOR_WHITE);
  76
  77   // Render some text using DejaVu Sans 9 and Sans Mono 8
  78   // ---------------------------------------------------------------------
  79   fontsDrawString(5, 10, COLOR_BLACK, &dejaVuSansBold9ptFontInfo, "DejaVu Sans 9 Bold");
  80   fontsDrawString(5, 30, COLOR_BLACK, &dejaVuSans9ptFontInfo, "DejaVu Sans 9");
  81   fontsDrawString(5, 50, COLOR_BLACK, &dejaVuSansMono8ptFontInfo, "DejaVu Sans Mono 8");
  82
  83   // Change the LCD orientation to render text horizontally
  84   // ---------------------------------------------------------------------
  85   lcdProperties_t lcdProperties = lcdGetProperties();
  86   // Check if the screen orientation can be changed
  87   if (lcdProperties.orientation)
  88   {
  89     // Change the orientation
  90     lcdSetOrientation(lcdGetOrientation() == LCD_ORIENTATION_PORTRAIT ?
  91       LCD_ORIENTATION_LANDSCAPE : LCD_ORIENTATION_PORTRAIT);
  92     // Render some text in the new orientation
  93     fontsDrawString(5, 10, COLOR_BLACK, &dejaVuSans9ptFontInfo, "DejaVu Sans 9 (Rotated)");
  94     // Change the orientation back
  95     lcdSetOrientation(lcdGetOrientation() == LCD_ORIENTATION_PORTRAIT ?
  96       LCD_ORIENTATION_LANDSCAPE : LCD_ORIENTATION_PORTRAIT);
  97   }
  98
  99   // Draw some primitive shapes
 100   // ---------------------------------------------------------------------
 101   drawLine(5, 65, 200, 65, COLOR_RED);
 102   drawLine(5, 67, 200, 67, COLOR_GREEN);
 103   drawLine(5, 69, 200, 69, COLOR_BLUE);
 104   drawCircleFilled(30, 105, 25, COLOR_BLACK);
 105   drawCircleFilled(30, 105, 23, drawRGB24toRGB565(0x33, 0x00, 0x00));
 106   drawCircleFilled(30, 105, 19, drawRGB24toRGB565(0x66, 0x00, 0x00));
 107   drawCircleFilled(30, 105, 15, drawRGB24toRGB565(0x99, 0x00, 0x00));
 108   drawCircleFilled(30, 105, 11, drawRGB24toRGB565(0xCC, 0x00, 0x00));
 109   drawCircleFilled(30, 105,  7, drawRGB24toRGB565(0xFF, 0x00, 0x00));
 110   drawRectangleFilled( 80,  80, 180, 125, COLOR_DARKERGRAY);
 111   drawRectangleFilled( 85,  85, 175, 120, COLOR_DARKGRAY);
 112   drawRectangleFilled( 90,  90, 170, 115, COLOR_MEDIUMGRAY);
 113   drawRectangleFilled( 95,  95, 165, 110, COLOR_LIGHTGRAY);
 114   drawRectangleFilled(100, 100, 160, 105, COLOR_PALEGRAY);
 115
 116   // Draw some compound shapes
 117   // ---------------------------------------------------------------------
 118   drawProgressBar(70, 140, 75, 12, COLOR_BLACK, COLOR_MEDIUMGRAY, 78);
 119   fontsDrawString(5, 144, COLOR_BLACK, &dejaVuSansBold9ptFontInfo, "Progress");
 120   fontsDrawString(155, 144, COLOR_BLACK, &dejaVuSans9ptFontInfo, "78%");
 121   drawRectangleFilled(0, 175, 239, 210, COLOR_DARKERGRAY);
 122   drawButton(20, 180, 200, 25, &dejaVuSans9ptFontInfo, "Click For Text Entry", false);
 123
 124   // Wait for a valid touch event
 125   // ---------------------------------------------------------------------
 126   tsTouchData_t data;
 127   tsTouchError_t error = -1;
 128   bool success = false;
 129   while(!success)
 130   {
 131     // Wait forever for a valid touch event to occur (ignoring faulty readings)
 132     while (error)
 133     {
 134       // Only exit this loop when '0' is returned
 135       error = tsWaitForEvent(&data, 0);
 136       // printf("Error: %d X: %u Y: %u \r\n", error, data.x, data.y);
 137     }
 138
 139     // Reset error to an error state in case we got a valid reading, but it's not
 140     // within the expected range
 141     error = -1;
 142
 143     // Check if the captured touch event is within the specified X/Y range
 144     if (data.x > 20 && data.x < 220 && data.y > 180 && data.y < 205)
 145     {
 146       // Wait a few milliseconds then display the text input dialogue
 147       systickDelay(100);
 148       char* results = alphaShowDialogue();
 149       // At this point, results contains the text from the dialogue ...
 150       // clear the screen and show the results
 151       drawFill(COLOR_WHITE);
 152       fontsDrawString(10, 10, COLOR_BLACK, &dejaVuSans9ptFontInfo, "You Entered:");
 153       fontsDrawString(10, 30, COLOR_BLACK, &dejaVuSansBold9ptFontInfo, results);
 154       fontsDrawString(10, 155, COLOR_BLACK, &dejaVuSans9ptFontInfo, "Thanks ... starting blinky!");
 155       // Setting success to true allow the code to move in to blinky
 156       success = true;
 157     }
 158   }
 159
 160   uint32_t currentSecond, lastSecond;
 161   currentSecond = lastSecond = 0;
 162
 163   while (1)
 164   {
 165     // Toggle LED once per second ... rollover = 136 years :)
 166     currentSecond = systickGetSecondsActive();
 167     if (currentSecond != lastSecond)
 168     {
 169       lastSecond = currentSecond;
 170       if (gpioGetValue(CFG_LED_PORT, CFG_LED_PIN) == CFG_LED_OFF)
 171       {
 172         gpioSetValue (CFG_LED_PORT, CFG_LED_PIN, CFG_LED_ON);
 173       }
 174       else
 175       {
 176         gpioSetValue (CFG_LED_PORT, CFG_LED_PIN, CFG_LED_OFF);
 177       }
 178     }
 179   }
 180
 181   return 0;
 182 }