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#include "gui.h"
static struct guiNode_t *firstGUI = NULL;
uint16_t x, y; // global touchpad coordinates
static uint8_t addElement(struct guiNode_t *newNode) {
struct guiNode_t *new;
if(firstGUI == NULL) {
firstGUI = chHeapAlloc(NULL, sizeof(struct guiNode_t));
if(firstGUI == NULL)
return 0;
*firstGUI = *newNode;
firstGUI->next = NULL;
} else {
new = firstGUI;
while(new->next != NULL)
new = new->next;
new->next = chHeapAlloc(NULL, sizeof(struct guiNode_t));
if(new->next == NULL)
return 0;
new = new->next;
*new = *newNode;
new->next = NULL;
}
return 1;
}
static uint8_t deleteElement(char *label) {
struct guiNode_t *pointer, *pointer1;
if(firstGUI != NULL) {
if(strcmp(firstGUI->label, label) == 0) {
pointer = firstGUI->next;
chHeapFree(firstGUI);
firstGUI = pointer;
} else {
pointer = firstGUI;
while(pointer->next != NULL) {
pointer1 = pointer->next;
if(strcmp(firstGUI->label, label) == 0) {
pointer->next = pointer1->next;
chHeapFree(pointer1);
break;
}
pointer = pointer1;
}
}
return 1; // successful
}
return 0; // not successful
}
void guiPrintElements(BaseSequentialStream *chp) {
struct guiNode_t *pointer = firstGUI;
chprintf(chp, "\r\n\nguiNodes:\r\n\n");
while(pointer != NULL) {
chprintf(chp, "x0: %d\r\n", pointer->x0);
chprintf(chp, "y0: %d\r\n", pointer->y0);
chprintf(chp, "x1: %d\r\n", pointer->x1);
chprintf(chp, "y1: %d\r\n", pointer->y1);
chprintf(chp, "label: %s\r\n", pointer->label);
chprintf(chp, "active: %d\r\n", *(pointer->active));
chprintf(chp, "state: %d\r\n", *(pointer->state));
chprintf(chp, "*next: 0x%x\r\n", pointer->next);
chprintf(chp, "\r\n\n");
pointer = pointer->next;
}
}
static inline void buttonUpdate(struct guiNode_t *node) {
if(x >= node->x0 && x <= node->x1 && y >= node->y0 && y <= node->y1) {
*(node->state) = 1;
} else {
*(node->state) = 0;
}
}
static inline void sliderUpdate(struct guiNode_t *node) {
uint16_t length;
if(node->orientation == horizontal)
length = node->x1 - node->x0;
else if(node->orientation == vertical)
length = node->y1 - node->y0;
if(node->mode == modePassive) {
node->percentage = *(node->state);
} else if(node->mode == modeActive) {
if(x >= node->x0 && x <= node->x1 && y >= node->y0 && y <= node->y1) {
if(node->orientation == horizontal) {
node->percentage = (((x - node->x0) * 100) / length);
} else if(node->orientation == vertical) {
node->percentage = (((y - node->y0) * 100) / length);
}
}
*(node->state) = node->percentage;
}
// a bit of safety here
if(node->percentage > 100)
node->percentage = 100;
if(node->percentage < 0)
node->percentage = 0;
if(node->orientation == horizontal) {
node->value = ((((node->x1)-(node->x0)) * node->percentage) / 100);
if(node->oldValue > node->value || node->value == 0)
lcdFillArea(node->x0+1, node->y0+1, node->x1, node->y1, node->bkColor);
else
lcdDrawRect(node->x0+1, node->y0+1, node->x0+node->value, node->y1, filled, node->valueColor);
} else if(node->orientation == vertical) {
node->value = ((((node->y1)-(node->y0)) * node->percentage) / 100);
if(node->oldValue > node->value || node->value == 0)
lcdFillArea(node->x0+1, node->y0+1, node->x1, node->y1, node->bkColor);
else
lcdDrawRect(node->x0+1, node->y0+1, node->x1, node->y0+node->value, filled, node->valueColor);
}
node->oldValue = node->value;
}
static inline void wheelUpdate(struct guiNode_t *node) {
(void)node;
}
static inline void keymatrixUpdate(struct guiNode_t *node) {
(void)node;
}
static void guiThread(const uint16_t interval) {
struct guiNode_t *node;
chRegSetThreadName("GUI");
while(TRUE) {
for(node = firstGUI; node; node = node->next) {
// check if GUI element is set active
if(*(node->active) == active) {
x = tpReadX();
y = tpReadY();
switch(node->type) {
case button:
buttonUpdate(node);
break;
case slider:
sliderUpdate(node);
break;
case wheel:
wheelUpdate(node);
break;
case keymatrix:
keymatrixUpdate(node);
break;
}
}
}
chThdSleepMilliseconds(interval);
}
}
Thread *guiInit(uint16_t interval, tprio_t priority) {
Thread *tp = NULL;
tp = chThdCreateFromHeap(NULL, THD_WA_SIZE(512), priority, guiThread, interval);
return tp;
}
uint8_t guiDeleteElement(char *label) {
return deleteElement(label);
}
uint8_t guiDrawButton(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, char *str, font_t font, uint16_t fontColor, uint16_t buttonColor, uint16_t shadow, char *label, uint8_t *active, uint8_t *state) {
struct guiNode_t *newNode;
uint16_t i;
newNode = chHeapAlloc(NULL, sizeof(struct guiNode_t));
if(newNode == NULL)
return 0;
newNode->type = button;
newNode->label = label;
newNode->x0 = x0;
newNode->y0 = y0;
newNode->x1 = x1;
newNode->y1 = y1;
newNode->shadow = shadow;
newNode->active = active;
newNode->state = state;
if(addElement(newNode) != 1)
return 0;
lcdDrawRectString(x0, y0, x1, y1, str, font, fontColor, buttonColor);
if(shadow != 0) {
for(i = 0; i < shadow; i++) {
lcdDrawLine(x0+shadow, y1+i, x1+shadow-1, y1+i, Black);
lcdDrawLine(x1+i, y0+shadow, x1+i, y1+shadow-1, Black);
}
}
chHeapFree(newNode);
return 1;
}
uint8_t guiDrawSlider(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint8_t orientation, uint8_t mode, uint16_t frameColor, uint16_t bkColor, uint16_t valueColor, char *label, uint8_t *active, uint8_t *value) {
struct guiNode_t *newNode;
newNode = chHeapAlloc(NULL, sizeof(struct guiNode_t));
if(newNode == NULL)
return 0;
newNode->type = slider;
newNode->label = label;
newNode->x0 = x0;
newNode->y0 = y0;
newNode->x1 = x1;
newNode->y1 = y1;
newNode->mode = mode;
newNode->bkColor = bkColor;
newNode->valueColor = valueColor;
newNode->state = value;
newNode->active = active;
newNode->orientation = orientation;
newNode->percentage = 0;
if(addElement(newNode) != 1)
return 0;
(void)bkColor;
(void)valueColor;
// lcdDraw functions
lcdDrawRect(x0, y0, x1, y1, frame, frameColor);
chHeapFree(newNode);
return 1;
}
uint8_t guiDrawWheel(uint16_t x0, uint16_t y0, uint16_t radius1, uint16_t radius2, uint16_t bkColor, uint16_t valueColor, char *label, uint8_t *active, uint8_t *value) {
struct guiNode_t *newNode;
newNode = chHeapAlloc(NULL, sizeof(struct guiNode_t));
if(newNode == NULL)
return 0;
newNode->type = wheel;
newNode->label = label;
newNode->x0 = x0;
newNode->y0 = y0;
newNode->r1 = radius1;
newNode->r2 = radius2;
newNode->active = active;
newNode->state = value;
if(addElement(newNode) != 1)
return 0;
(void)bkColor;
(void)valueColor;
// lcdDraw functions
chHeapFree(newNode);
return 1;
}
uint8_t guiDrawKeymatrix(uint16_t x0, uint16_t y0, uint16_t size, uint16_t space, uint16_t shadow, uint16_t buttonColor, uint16_t fontColor, font_t font, char *label, uint8_t *active, uint8_t *value) {
struct guiNode_t *newNode;
newNode = chHeapAlloc(NULL, sizeof(struct guiNode_t));
if(newNode == NULL)
return 0;
newNode->type = keymatrix;
newNode->label = label;
newNode->x0 = x0;
newNode->y0 = y0;
newNode->shadow = shadow;
newNode->active = active;
newNode->state = value;
if(addElement(newNode) != 1)
return 0;
// lcdDraw functions
chHeapFree(newNode);
return 1;
}
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