// Process an event
static void gwidgetEvent(void *param, GEvent *pe) {
#define pme ((GEventMouse *)pe)
#define pke ((GEventKeyboard *)pe)
#define pte ((GEventToggle *)pe)
#define pde ((GEventDial *)pe)
GHandle h;
GHandle gh;
#if GFX_USE_GINPUT && (GINPUT_NEED_TOGGLE || GINPUT_NEED_DIAL)
uint16_t role;
#endif
(void) param;
// Process various events
switch (pe->type) {
#if GFX_USE_GINPUT && GINPUT_NEED_MOUSE
case GEVENT_MOUSE:
case GEVENT_TOUCH:
// Cycle through all windows
for (gh = 0, h = gwinGetNextWindow(0); h; h = gwinGetNextWindow(h)) {
// The window must be on this display and visible to be relevant
if (h->display != pme->display || !(h->flags & GWIN_FLG_SYSVISIBLE))
continue;
// Is the mouse currently captured by this widget?
if ((h->flags & (GWIN_FLG_WIDGET|GWIN_FLG_MOUSECAPTURE)) == (GWIN_FLG_WIDGET|GWIN_FLG_MOUSECAPTURE)) {
gh = h;
if ((pme->buttons & GMETA_MOUSE_UP)) {
gh->flags &= ~GWIN_FLG_MOUSECAPTURE;
if (wvmt->MouseUp)
wvmt->MouseUp(gw, pme->x - gh->x, pme->y - gh->y);
} else if (wvmt->MouseMove)
wvmt->MouseMove(gw, pme->x - gh->x, pme->y - gh->y);
// There is only ever one captured mouse. Prevent normal mouse processing if there is a captured mouse
gh = 0;
break;
}
// Save the highest z-order window that the mouse is over
if (pme->x >= h->x && pme->x < h->x + h->width && pme->y >= h->y && pme->y < h->y + h->height)
gh = h;
}
// Process any mouse down over the highest order window if it is an enabled widget
if (gh && (gh->flags & (GWIN_FLG_WIDGET|GWIN_FLG_SYSENABLED)) == (GWIN_FLG_WIDGET|GWIN_FLG_SYSENABLED)) {
if ((pme->buttons & GMETA_MOUSE_DOWN)) {
gh->flags |= GWIN_FLG_MOUSECAPTURE;
#if (GFX_USE_GINPUT && GINPUT_NEED_KEYBOARD) || GWIN_NEED_KEYBOARD
// We should try and capture the focus on this window.
// If we can't then we don't change the focus
gwinSetFocus(gh);
#endif
if (wvmt->MouseDown)
wvmt->MouseDown(gw, pme->x - gh->x, pme->y - gh->y);
}
}
break;
#endif
#if (GFX_USE_GINPUT && GINPUT_NEED_KEYBOARD) || GWIN_NEED_KEYBOARD
case GEVENT_KEYBOARD:
// If Tab key pressed then set focus to next widget
if (pke->bytecount == 1 && pke->c[0] == GKEY_TAB) {
if (!(pke->keystate & GKEYSTATE_KEYUP))
_gwinMoveFocus();
break;
}
// Otherwise, send keyboard events only to widget in focus
if (_widgetInFocus)
((gwidgetVMT*)_widgetInFocus->vmt)->KeyboardEvent((GWidgetObject*)_widgetInFocus, pke);
break;
#endif
#if GFX_USE_GINPUT && GINPUT_NEED_TOGGLE
case GEVENT_TOGGLE:
// Cycle through all windows
for(gh = gwinGetNextWindow(0); gh; gh = gwinGetNextWindow(gh)) {
// check if it a widget that is enabled and visible
if ((gh->flags & (GWIN_FLG_WIDGET|GWIN_FLG_SYSENABLED|GWIN_FLG_SYSVISIBLE)) != (GWIN_FLG_WIDGET|GWIN_FLG_SYSENABLED|GWIN_FLG_SYSVISIBLE))
continue;
for(role = 0; role < wvmt->toggleroles; role++) {
if (wvmt->ToggleGet(gw, role) == pte->instance) {
if (pte->on) {
if (wvmt->ToggleOn)
wvmt->ToggleOn(gw, role);
} else {
if (wvmt->ToggleOff)
wvmt->ToggleOff(gw, role);
}
}
}
}
break;
#endif
#if GFX_USE_GINPUT && GINPUT_NEED_DIAL
case GEVENT_DIAL:
// Cycle through all windows
for(gh = gwinGetNextWindow(0); gh; gh = gwinGetNextWindow(gh)) {
// check if it a widget that is enabled and visible
if ((gh->flags & (GWIN_FLG_WIDGET|GWIN_FLG_SYSENABLED|GWIN_FLG_SYSVISIBLE)) != (GWIN_FLG_WIDGET|GWIN_FLG_SYSENABLED|GWIN_FLG_SYSVISIBLE))
continue;
for(role = 0; role < wvmt->dialroles; role++) {
if (wvmt->DialGet(gw, role) == pte->instance) {
if (wvmt->DialMove)
wvmt->DialMove(gw, role, pde->value, pde->maxvalue);
}
}
}
break;
#endif
default:
break;
}
#undef pme
#undef pte
#undef pke
#undef pde
}
static void TextEditKeyboard(GWidgetObject* gw, GEventKeyboard* pke) {
// Only react on KEYDOWN events. Ignore KEYUP events.
if ((pke->keystate & GKEYSTATE_KEYUP) || !pke->bytecount)
return;
// Is it a special key?
if (pke->keystate & GKEYSTATE_SPECIAL) {
// Arrow keys to move the cursor
switch ((uint8_t)pke->c[0]) {
case GKEY_LEFT:
if (!gw2obj->cursorPos)
return;
gw2obj->cursorPos--;
break;
case GKEY_RIGHT:
if (!gw->text[gw2obj->cursorPos])
return;
gw2obj->cursorPos++;
break;
case GKEY_HOME:
if (!gw2obj->cursorPos)
return;
gw2obj->cursorPos = 0;
break;
case GKEY_END:
if (!gw->text[gw2obj->cursorPos])
return;
gw2obj->cursorPos = strlen(gw->text);
break;
default:
return;
}
} else {
// Normal key press
switch((uint8_t)pke->c[0]) {
case GKEY_BACKSPACE:
// Backspace
if (!gw2obj->cursorPos)
return;
gw2obj->cursorPos--;
resizeText(gw, gw2obj->cursorPos, -1);
break;
case GKEY_TAB:
case GKEY_LF:
case GKEY_CR:
// Move to the next field
_gwinMoveFocus();
return;
case GKEY_DEL:
// Delete
if (!gw->text[gw2obj->cursorPos])
return;
resizeText(gw, gw2obj->cursorPos, -1);
break;
default:
// Ignore any other control characters
if ((uint8_t)pke->c[0] < GKEY_SPACE)
return;
// Keep the edit length to less than the maximum
if (gw2obj->maxSize && gw2obj->cursorPos+pke->bytecount > gw2obj->maxSize)
return;
// Make space
resizeText(gw, gw2obj->cursorPos, pke->bytecount);
// Insert the character
memcpy((char *)gw->text+gw2obj->cursorPos, pke->c, pke->bytecount);
gw2obj->cursorPos += pke->bytecount;
break;
}
}
_gwinUpdate((GHandle)gw);
}