Added Checkbox support

common/app/app.c

@@ -3,6 +3,7 @@
 #include "system.h"
 #include "touch.h"
 #include "button.h"
+#include "checkbox.h"
 #include "pixy.h"
 #include <stdio.h>
 #include <stdlib.h>
@@ -43,8 +44,11 @@ void buttonCB(void* button) {
 	printf("button pressed\n");
 }
 
+CHECKBOX_STRUCT c1;
 
-
+void checkboxCB(void *checkbox, bool checked) {
+	printf("Checkbox %s\n",(checked?"checked":"unchecked"));
+}
 
 void app_init() {
 	system_init();
@@ -73,8 +77,8 @@ void app_init() {
 	tft_draw_rectangle(30,30,100,60,BLUE);
 	tft_print_line(30, 30, RED, BLUE, 0, "Hallo");*/
 
-	//b_alarm_ok    
+        //button test
-        b1.base.x1=25; //Start X of Button
+	b1.base.x1=25; //Start X of Button
         b1.base.y1=45; //Start Y of Button
         b1.base.x2=AUTO; //b1.base.x1+160; //Auto Calculate X2 with String Width
         b1.base.y2=AUTO; //Auto Calculate Y2 with String Height
@@ -85,6 +89,16 @@ void app_init() {
         b1.callback=buttonCB; //Call b1_cb as Callback
         gui_button_add(&b1); //Register Button (and run the callback from now on)
 
+	//Checkbox test
+	c1.base.x1=220;
+	c1.base.y1=45;
+	c1.base.x2=c1.base.x1+16;
+	c1.base.y2=c1.base.y1+16;
+	c1.fgcolor = GREEN;
+	c1.checked = true;	
+	c1.callback = checkboxCB;
+	gui_checkbox_add(&c1);
+
 }
 
 
@@ -97,7 +111,8 @@ int pixy_frame_test();
 void app_process() {
 	
 	system_process(); //Let the system handle it's pending events
-	gui_button_redraw(&b1);
+	//gui_button_redraw(&b1);
+	///gui_checkbox_redraw(&c1);
 
 	//Note: The only way to detect that pixy has been disconnected is if a command fails. There's no pixy_is_connected method yet :'(
 

common/gui/checkbox.c

@@ -0,0 +1,88 @@
+#include "tft.h"
+#include "touch.h"
+#include "checkbox.h"
+#include <stdio.h>
+
+#define BRIGHTNESS_VAL 2 //How much the Brightness is in/decreased for checkbox shadows (3 -> Add 1/3 off Full Value)
+#define ACTIVE_COLOR RGB(251,208,123)
+#define BORDER_COLOR RGB(29,82,129)
+#define BACKGROUND_COLOR WHITE
+
+void checkboxes_cb(void* touchArea, TOUCH_ACTION triggeredAction)
+{
+	TOUCH_AREA_STRUCT * area = (TOUCH_AREA_STRUCT*)touchArea;
+	CHECKBOX_STRUCT* checkbox = (CHECKBOX_STRUCT*)touchArea;
+	switch(triggeredAction)
+	{
+		case PEN_DOWN:
+			area->hookedActions=PEN_UP|PEN_LEAVE;
+			tft_draw_rectangle(checkbox->base.x1+1,checkbox->base.y1+1,checkbox->base.x2-1,checkbox->base.y2-1,ACTIVE_COLOR);
+			tft_draw_rectangle(checkbox->base.x1+2,checkbox->base.y1+2,checkbox->base.x2-2,checkbox->base.y2-2,ACTIVE_COLOR);
+		break;
+		case PEN_UP:
+			checkbox->checked=!checkbox->checked;
+			gui_checkbox_update(checkbox);
+			if(checkbox->callback!=NULL)
+				checkbox->callback(checkbox,checkbox->checked);
+		case PEN_LEAVE:
+			area->hookedActions=PEN_DOWN;
+			tft_draw_rectangle(checkbox->base.x1+1,checkbox->base.y1+1,checkbox->base.x2-1,checkbox->base.y2-1,BACKGROUND_COLOR);
+			tft_draw_rectangle(checkbox->base.x1+2,checkbox->base.y1+2,checkbox->base.x2-2,checkbox->base.y2-2,BACKGROUND_COLOR);
+		break;
+		default:break;
+	}
+}
+
+bool gui_checkbox_add(CHECKBOX_STRUCT* checkbox)
+{
+	if(touch_have_empty(1))
+	{
+		unsigned char size=0;
+		checkbox->base.hookedActions=PEN_DOWN;
+		checkbox->base.callback = checkboxes_cb;
+		if(checkbox->base.x2>checkbox->base.x1)
+			size = checkbox->base.x2 - checkbox->base.x1;
+		if(checkbox->base.y2>checkbox->base.y1)	
+		{
+			if((checkbox->base.y2 - checkbox->base.y1)>size)	
+				size = checkbox->base.y2 - checkbox->base.y1;
+		}
+		if((size&0x01))
+			size++;
+		checkbox->base.x2 = checkbox->base.x1 + size;
+		checkbox->base.y2 = checkbox->base.y1 + size;
+		gui_checkbox_redraw(checkbox);	
+		return touch_register_area(&checkbox->base);		
+	}
+	return false;
+}
+ 
+void gui_checkbox_redraw(CHECKBOX_STRUCT* checkbox)
+{
+	tft_fill_rectangle(checkbox->base.x1+1,checkbox->base.y1+1,checkbox->base.x2-1,checkbox->base.y2-1,BACKGROUND_COLOR);
+	tft_draw_rectangle(checkbox->base.x1,checkbox->base.y1,checkbox->base.x2,checkbox->base.y2,BORDER_COLOR);
+	if(checkbox->checked)
+		gui_checkbox_update(checkbox);
+}
+
+void gui_checkbox_remove(CHECKBOX_STRUCT* checkbox)
+{
+	 touch_unregister_area((TOUCH_AREA_STRUCT*)checkbox);
+}
+
+void gui_checkbox_update(CHECKBOX_STRUCT* checkbox)
+{
+	unsigned int c = (checkbox->checked)? checkbox->fgcolor:BACKGROUND_COLOR;
+	unsigned int  xcent = checkbox->base.x1+(checkbox->base.x2-checkbox->base.x1)*6/14;
+	unsigned int yleft = checkbox->base.y2 - (xcent- checkbox->base.x1) - 1 ;
+	unsigned int yright = checkbox->base.y2 - (checkbox->base.x2 - xcent) - 1 ;
+	unsigned int ybot = checkbox->base.y2 - 4;
+	tft_draw_line(checkbox->base.x1+3,yleft-1,xcent,ybot -1,c);
+	tft_draw_line(checkbox->base.x1+3,yleft,xcent,ybot ,c);
+	tft_draw_line(checkbox->base.x1+3,yleft+1,xcent,ybot + 1,c);
+	xcent++;
+	ybot--;
+	tft_draw_line(xcent,ybot-1,checkbox->base.x2-3,yright-1,c);
+	tft_draw_line(xcent,ybot,checkbox->base.x2-3,yright+0,c);
+	tft_draw_line(xcent,ybot+1,checkbox->base.x2-3,yright+1,c);
+}

common/gui/checkbox.h

@@ -0,0 +1,15 @@
+
+typedef void (*CHECKBOX_CALLBACK)(void *checkbox, bool checked);	//!< Function pointer used...
+typedef struct {
+	TOUCH_AREA_STRUCT base; 
+	uint16_t fgcolor;
+	bool checked;
+	CHECKBOX_CALLBACK callback; //Callback
+} CHECKBOX_STRUCT;
+
+
+bool gui_checkbox_add(CHECKBOX_STRUCT* checkbox);
+void gui_checkbox_remove(CHECKBOX_STRUCT* checkbox);
+void gui_checkbox_update(CHECKBOX_STRUCT* checkbox);
+void gui_checkbox_redraw(CHECKBOX_STRUCT* checkbox);
+#define CHECKBOX_WIN_FG_COLOR RGB(32,161,34)