void GUI_SetSelected(guiObject_t *obj)
{
if (obj && obj != objSELECTED) {
if (objSELECTED)
OBJ_SET_DIRTY(objSELECTED, 1);
objSELECTED = obj;
if(select_notify)
select_notify(obj);
OBJ_SET_DIRTY(obj, 1);
}
}
void GUI_SetHidden(struct guiObject *obj, u8 state)
{
if((!!state) == (!! OBJ_IS_HIDDEN(obj)))
return;
OBJ_SET_HIDDEN(obj, state);
OBJ_SET_DIRTY(obj, 1);
}
u8 GUI_TouchKeyboard(struct guiObject *obj, struct touch *coords, s8 press_type)
{
struct guiKeyboard *keyboard = (struct guiKeyboard *)obj;
if (coords && ! press_type && (! keyboard->lastchar || (keyboard->flags & FLAG_BUTTON))) {
char c = keyboard_cmd(KB_COMPARE_AND_PRESS, keyboard, coords);
keyboard->flags &= ~FLAG_BUTTON;
keyboard->lastchar = c;
} else if (press_type == -1 && keyboard->lastchar && ! (keyboard->flags & FLAG_BUTTON)) {
//Key Release
if (keyboard->lastchar == '\x06') { //DONE
keyboard->lastchar = '\0';
if (keyboard->CallBack)
keyboard->CallBack(obj, keyboard->cb_data);
//After DONE it is possible that obj and keyboard are invalid
return 1;
} else if (keyboard->lastchar == '\x09') { //CAPS
keyboard->flags ^= FLAG_CAPS;
keyboard_cmd(KB_DRAW, keyboard, NULL);
} else if (keyboard->lastchar == '\x01' || keyboard->lastchar == '\x02') { //Numpad
keyboard->type = keyboard->type == KEYBOARD_ALPHA ? KEYBOARD_SPECIAL : KEYBOARD_ALPHA;
OBJ_SET_DIRTY(obj, 1);
} else {
keyboard_cmd(KB_RELEASE, keyboard, NULL);
kb_update_string(keyboard, keyboard->lastchar);
}
keyboard->lastchar = '\0';
} else if (press_type == 1 && keyboard->lastchar == '\x08') {
//DEL Long Press erases whole string
keyboard->text[0] = '\0';
_kb_draw_text(keyboard->text);
}
return 1;
}
void GUI_SetSelectable(guiObject_t *obj, u8 selectable)
{
OBJ_SET_SELECTABLE(obj, selectable);
if(objSELECTED == obj && ! selectable) {
objSELECTED = NULL;
OBJ_SET_DIRTY(obj, 1);
}
}
void GUI_HandleInput(int source, int value) {
if(objSELECTED && objSELECTED->Type == TextSelect) {
guiTextSelect_t *select = (guiTextSelect_t *)objSELECTED;
if (select->InputValueCB) {
select->InputValueCB(objSELECTED, source, value, select->cb_data);
OBJ_SET_DIRTY(objSELECTED, 1);
}
}
}
void GUI_ButtonEnable(struct guiObject *obj, u8 enable)
{
struct guiButton *button = (struct guiButton *)obj;
int is_enabled = button->flags & FLAG_ENABLE;
enable = enable ? FLAG_ENABLE : 0;
if (enable ^ is_enabled) {
button->flags = (button->flags & ~FLAG_ENABLE) | enable;
OBJ_SET_DIRTY(obj, 1);
}
}
static unsigned press_cb(u32 button, unsigned flags, void *data)
{
struct guiObject *obj = (struct guiObject *)data;
struct guiKeyboard *keyboard = (struct guiKeyboard *)obj;
(void)data;
if (flags & BUTTON_PRESS || flags & BUTTON_LONGPRESS) {
if ( flags & BUTTON_LONGPRESS && CHAN_ButtonIsPressed(button, BUT_ENTER) && keyboard->lastchar == '\x08') {
//DEL Long Press erases whole string
keyboard->text[0] = '\0';
_kb_draw_text(keyboard->text);
}
else if (CHAN_ButtonIsPressed(button, BUT_EXIT)) { // allow user to press the EXT key to discard changes
if (keyboard->CallBack) {
if (keyboard->cb_data != NULL) {
int *result = (int *) keyboard->cb_data;
*result = 0;
}
BUTTON_UnregisterCallback(&keyboard->action);
keyboard->CallBack(obj, keyboard->cb_data );
}
//After DONE it is possible that obj and keyboard are invalid
} else if (CHAN_ButtonIsPressed(button, BUT_RIGHT)) {
navigate_item(keyboard, 1 , 0);
} else if (CHAN_ButtonIsPressed(button, BUT_LEFT)) {
navigate_item(keyboard, -1, 0);
} else if (CHAN_ButtonIsPressed(button, BUT_UP)) {
navigate_item(keyboard, 0 , -1);
} else if (CHAN_ButtonIsPressed(button, BUT_DOWN)) {
navigate_item(keyboard, 0, 1);
} else if (CHAN_ButtonIsPressed(button, BUT_ENTER)) {
if (keyboard->lastchar == '\x09') { //CAPS
keyboard->flags ^= FLAG_CAPS;
keyboard_cmd(KB_DRAW, keyboard, NULL);
} else if (keyboard->lastchar == '\x01' || keyboard->lastchar == '\x02') { //Numpad
keyboard->type = keyboard->type == KEYBOARD_ALPHA ? KEYBOARD_SPECIAL : KEYBOARD_ALPHA;
OBJ_SET_DIRTY(obj, 1);
} else if (keyboard->lastchar == '\x06') { //DONE
if (keyboard->CallBack) {
if (keyboard->cb_data != NULL) {
int *result = (int *) keyboard->cb_data;
if (*result <= 0) // to avoid loosing the channel number when renaming virtual channels on b/w-screens
*result = 1;
}
BUTTON_UnregisterCallback(&keyboard->action);
keyboard->CallBack(obj, keyboard->cb_data );
}
//After DONE it is possible that obj and keyboard are invalid
} else {
kb_update_string(keyboard, keyboard->lastchar);
}
}
return 1;
}
return 1;
}
void GUI_DrawObjects(void)
{
struct guiObject *obj = objHEAD;
while(obj) {
if(! OBJ_IS_HIDDEN(obj)) {
GUI_DrawObject(obj);
} else {
OBJ_SET_DIRTY(obj, 0);
}
obj = obj->next;
}
}
void GUI_HideObjects(struct guiObject *headObj, struct guiObject *modalObj)
{
struct guiObject *obj;
//Only start drawing from headObj(scrollable) or 1st modal if either is set
obj = headObj ? headObj : modalObj ? modalObj : objHEAD;
while(obj) {
if(OBJ_IS_HIDDEN(obj) && OBJ_IS_DIRTY(obj)) {
GUI_DrawBackground(obj->box.x, obj->box.y, obj->box.width, obj->box.height);
OBJ_SET_DIRTY(obj, 0);
}
obj = obj->next;
}
}
void GUI_ChangeImage(struct guiImage *image, const char *file, u16 x_off, u16 y_off)
{
guiObject_t *obj = (guiObject_t *)image;
//Use a CRC for comparison because the filename may change without the pointer changing
u32 crc = Crc(file, strlen(file));
if (image->file != file || image->crc != crc || image->x_off != x_off || image->y_off != y_off) {
image->crc = crc;
image->file = file;
image->x_off = x_off;
image->y_off = y_off;
OBJ_SET_TRANSPARENT(obj, LCD_ImageIsTransparent(file));
OBJ_SET_DIRTY(obj, 1);
}
}
void connect_object(struct guiObject *obj)
{
if (objHEAD == NULL) {
objHEAD = obj;
} else {
struct guiObject *ptr = objHEAD;
while(ptr->next)
ptr = ptr->next;
ptr->next = obj;
}
OBJ_SET_USED(obj, 1);
OBJ_SET_DIRTY(obj, 1);
obj->next = NULL;
}
u8 GUI_TouchXYGraph(struct guiObject *obj, struct touch *coords, u8 long_press)
{
struct guiXYGraph *graph = (struct guiXYGraph *)obj;
(void)long_press;
if (graph->touch_cb) {
s32 x, y;
x = (s32)(coords->x - obj->box.x) * (1 + graph->max_x - graph->min_x) / obj->box.width + graph->min_x;
y = (s32)(obj->box.height -1 - (coords->y - obj->box.y))
* (1 + graph->max_y - graph->min_y) / obj->box.height + graph->min_y;
if(graph->touch_cb(x, y, graph->cb_data)) {
OBJ_SET_DIRTY(obj, 1);
return 1;
}
}
return 0;
}
int GUI_TouchButton(struct guiObject *obj, int press_type)
{
//press_type: 1=long_press, -1=release
struct guiButton *button = (struct guiButton *)obj;
if (press_type == 0) {
button->flags &= ~FLAG_LONGPRESS;
} else if (press_type == 1) {
button->flags |= FLAG_LONGPRESS;
return 0;
}
OBJ_SET_DIRTY(objTOUCHED, 1);
if (press_type == -1) {
if(button->CallBack) {
button->CallBack(objTOUCHED, button->cb_data);
//The object may have been destroyed by now, the obj may be invalid
}
}
return 1;
}
void GUI_DrawObject(struct guiObject *obj)
{
#ifdef DEBUG_DRAW
switch (obj->Type) {
case UnknownGUI: printf("Draw Unknown: "); break;
case CheckBox: printf("Draw Checkbox:"); break;
case Dropdown: printf("Draw Dropdown:"); break;
case Button: printf("Draw Button: "); break;
case Label: printf("Draw Label: "); break;
case Image: printf("Draw Image: "); break;
case Dialog: printf("Draw Dialog: "); break;
case XYGraph: printf("Draw XYGraph: "); break;
case BarGraph: printf("Draw BarGraph:"); break;
case TextSelect: printf("Draw TextSel: "); break;
case Keyboard: printf("Draw Keyboard:"); break;
case Scrollbar: printf("Draw ScrlBar: "); break;
case Scrollable: printf("Draw Scrlable:"); break;
case Rect: printf("Draw Rect: "); break;
}
printf(" ptr: %08x Selected: %s\n", obj, obj == objSELECTED ? "true" : "false");
#endif
switch (obj->Type) {
case UnknownGUI: break;
case CheckBox: break;
case Dropdown: break;
case Button: GUI_DrawButton(obj); break;
case Label: GUI_DrawLabel(obj); break;
case Image: GUI_DrawImage(obj); break;
case Dialog: GUI_DrawDialog(obj); break;
case XYGraph: GUI_DrawXYGraph(obj); break;
case BarGraph: GUI_DrawBarGraph(obj); break;
case TextSelect: GUI_DrawTextSelect(obj); break;
case Keyboard: GUI_DrawKeyboard(obj); break;
case Scrollbar: GUI_DrawScrollbar(obj); break;
case Scrollable: GUI_DrawScrollable(obj); break;
case Rect: GUI_DrawRect(obj); break;
}
if (obj == objSELECTED && obj->Type != Scrollable)
_gui_hilite_selected(obj);
OBJ_SET_DIRTY(obj, 0);
}
void _GUI_ChangeImage(struct guiImage *image, const char *file, u16 x_off, u16 y_off, u8 replace)
{
guiObject_t *obj = (guiObject_t *)image;
//Use a CRC for comparison because the filename may change without the pointer changing
u32 crc = Crc(file, strlen(file));
if (image->file != file || image->crc != crc || image->x_off != x_off || image->y_off != y_off) {
if (replace) {
// draw background where the old picture was bigger
struct guiBox *box = &obj->box;
u16 w, h;
LCD_ImageDimensions(file, &w, &h);
if (h < box->height) GUI_DrawBackground(box->x, box->y + h, box->width, box->height - h); // remove lower left part of old image
if (w < box->width) GUI_DrawBackground(box->x + w, box->y, box->width - w, h < box->height ? h : box->height); // remove upper right part of old image
box->width = w;
box->height = h;
}
image->crc = crc;
image->file = file;
image->x_off = x_off;
image->y_off = y_off;
OBJ_SET_TRANSPARENT(obj, LCD_ImageIsTransparent(file));
OBJ_SET_DIRTY(obj, 1);
}
}
void _GUI_Redraw(struct guiObject *obj)
{
OBJ_SET_DIRTY(obj, 1);
}
unsigned handle_buttons(u32 button, unsigned flags, void *data)
{
(void)data;
//When modal, we capture all button presses
int modalActive = GUI_IsModal() ? 1 : 0;
if(USE_4BUTTON_MODE) {
// IN 4 button mode, up/down can also act as left/right for TextSelect
if (objACTIVE) {
if (CHAN_ButtonIsPressed(button, BUT_UP)) {
button = CHAN_ButtonMask(BUT_LEFT);
} else if (CHAN_ButtonIsPressed(button, BUT_DOWN)) {
button = CHAN_ButtonMask(BUT_RIGHT);
} else if (CHAN_ButtonIsPressed(button, BUT_ENTER)) {
if (flags & BUTTON_RELEASE)
objACTIVE = NULL;
} else if (CHAN_ButtonIsPressed(button, BUT_EXIT)) {
if (flags & BUTTON_RELEASE)
objACTIVE = NULL;
return 1;
}
} else {
if (objSELECTED && CHAN_ButtonIsPressed(button, BUT_ENTER) && objSELECTED->Type == TextSelect) {
if (flags & BUTTON_RELEASE) {
objACTIVE = objSELECTED;
}
return 1;
}
}
}
//printf("Button: %08x Flags: %08x Active: %08x\n", button, flags, objACTIVE);
if (CHAN_ButtonIsPressed(button, BUT_LEFT) ||
CHAN_ButtonIsPressed(button, BUT_RIGHT) ||
CHAN_ButtonIsPressed(button, BUT_ENTER))
{
// Widgets can only handle Left, Right and Enter
if (objSELECTED)
return GUI_ObjButton(objSELECTED, button, flags) || modalActive;
return modalActive;
}
if (flags & (BUTTON_LONGPRESS | BUTTON_RELEASE)) {
if ((flags & BUTTON_HAD_LONGPRESS) & (flags & BUTTON_RELEASE)) {
//ignore long-press release
return modalActive;
}
else if (CHAN_ButtonIsPressed(button, BUT_DOWN) || CHAN_ButtonIsPressed(button, BUT_UP))
{
struct guiObject *obj = (CHAN_ButtonIsPressed(button, BUT_DOWN) || ! objSELECTED)
? GUI_GetNextSelectable(objSELECTED)
: GUI_GetPrevSelectable(objSELECTED);
if (obj && obj != objSELECTED) {
GUI_SetSelected(obj);
}
} else if (! (flags & BUTTON_LONGPRESS) && objSELECTED && CHAN_ButtonIsPressed(button, BUT_EXIT)) {
if (objDIALOG) {
//Why doesn't the dialog handle its own buttons?
DialogClose(objDIALOG, 0);
} else {
OBJ_SET_DIRTY(objSELECTED, 1);
objSELECTED = NULL;
if (select_notify)
select_notify(objSELECTED);
}
}
} else if (! objSELECTED && CHAN_ButtonIsPressed(button, BUT_EXIT)) {
// We need to tell the button handler that we will handle this press
// But we ignore an EXIT if there is nothing selected
return modalActive;
}
return 1;
}
u8 GUI_TouchTextSelect(struct guiObject *obj, struct touch *coords, s8 press_type)
{
struct guiBox box = obj->box;
struct guiTextSelect *select = (struct guiTextSelect *)obj;
if (press_type < 0) {
if(! select->state) {
return 0;
} else if(select->state & 0x80) {
select->state = 0;
OBJ_SET_DIRTY(obj, 1);
return 1;
} else if(select->state == 0x01) {
select->state = 0;
OBJ_SET_DIRTY(obj, 1);
select->ValueCB(obj, -1, select->cb_data);
return 1;
} else if(select->state == 0x02) {
select->state = 0;
OBJ_SET_DIRTY(obj, 1);
select->ValueCB(obj, 1, select->cb_data);
return 1;
} else if(select->state == 0x04) {
select->state = 0;
OBJ_SET_DIRTY(obj, 1);
select->SelectCB(obj, select->cb_data);
return 1;
}
printf("Error: Should not get here\n");
return 0;
}
box.width = ARROW_WIDTH;
// only used for RTC config in Devo12
#if HAS_RTC
if (select->type == TEXTSELECT_VERT_64) {
box.height = ARROW_HEIGHT;
box.x = obj->box.x + (obj->box.width - ARROW_WIDTH) / 2;
box.y = obj->box.y + obj->box.height - ARROW_HEIGHT;
}
#endif
if (select->enable & 0x01) {
if (coords_in_box(&box, coords)) {
if (! press_type) {
if (! select->state) {
select->state = 0x01;
OBJ_SET_DIRTY(obj, 1);
}
} else if (select->ValueCB) {
OBJ_SET_DIRTY(obj, 1);
select->ValueCB(obj, -2, select->cb_data);
select->state |= 0x80;
}
return 1;
}
// only used for RTC config in Devo12
#if HAS_RTC
if (select->type == TEXTSELECT_VERT_64) {
box.y = obj->box.y;
} else
#endif
box.x = obj->box.x + obj->box.width - ARROW_WIDTH;
if (coords_in_box(&box, coords)) {
if (! press_type) {
if (! select->state) {
select->state = 0x02;
OBJ_SET_DIRTY(obj, 1);
}
} else if (select->ValueCB) {
OBJ_SET_DIRTY(obj, 1);
select->ValueCB(obj, 2, select->cb_data);
select->state |= 0x80;
}
return 1;
}
}
if (! press_type && ! select->state && select->SelectCB && (select->enable & 0x02)) {
OBJ_SET_DIRTY(obj, 1);
select->state = 0x04;
return 1;
}
return 0;
}