void
GestureManager::Update(int x, int y)
{
// Calculate deltas
int dx = x - drag_last.x;
int dy = y - drag_last.y;
// See if we've reached the threshold already
if (compare_squared(dx, dy, threshold) != 1)
return;
// Save position for next call
drag_last.x = x;
drag_last.y = y;
// Get current dragging direction
char direction = getDirection(dx, dy);
// Return if we are in an unclear direction
if (direction == '\0')
return;
// Return if we are still in the same direction
size_t length = strlen(gesture);
if (length < sizeof(gesture) / sizeof(gesture[0]) - 1 &&
gesture[length - 1] != direction) {
gesture[length] = direction;
gesture[length + 1] = '\0';
}
}
void
GestureManager::Update(PixelScalar x, PixelScalar y)
{
// Calculate deltas
int dx = x - drag_last.x;
int dy = y - drag_last.y;
// See if we've reached the threshold already
if (compare_squared(dx, dy, threshold) != 1)
return;
// Save position for next call
drag_last.x = x;
drag_last.y = y;
// Get current dragging direction
TCHAR direction = getDirection(dx, dy);
// Return if we are in an unclear direction
if (direction == '\0')
return;
// Return if we are still in the same direction
if (gesture.empty() || gesture.last() != direction)
gesture.Append(direction);
}
bool
GlueMapWindow::OnMouseUp(PixelScalar x, PixelScalar y)
{
if (drag_mode != DRAG_NONE)
ReleaseCapture();
// Ignore single click event if double click detected
if (ignore_single_click) {
ignore_single_click = false;
return true;
}
int click_time = mouse_down_clock.Elapsed();
mouse_down_clock.Reset();
DragMode old_drag_mode = drag_mode;
drag_mode = DRAG_NONE;
switch (old_drag_mode) {
case DRAG_NONE:
/* skip the arm_mapitem_list check below */
return false;
#ifdef HAVE_MULTI_TOUCH
case DRAG_MULTI_TOUCH_PAN:
follow_mode = FOLLOW_SELF;
EnterPan();
return true;
#endif
case DRAG_PAN:
#ifndef ENABLE_OPENGL
/* allow the use of the stretched last buffer for the next two
redraws */
scale_buffer = 2;
#endif
#ifdef ENABLE_OPENGL
kinetic_x.MouseUp(x);
kinetic_y.MouseUp(y);
kinetic_timer.Schedule(30);
#endif
break;
case DRAG_SIMULATOR:
if (click_time > 50 &&
compare_squared(drag_start.x - x, drag_start.y - y,
Layout::Scale(36)) == 1) {
GeoPoint location = visible_projection.ScreenToGeo(x, y);
double distance = hypot(drag_start.x - x, drag_start.y - y);
// This drag moves the aircraft (changes speed and direction)
const Angle old_bearing = CommonInterface::Basic().track;
const fixed min_speed = fixed(1.1) *
CommonInterface::GetComputerSettings().polar.glide_polar_task.GetVMin();
const Angle new_bearing = drag_start_geopoint.Bearing(location);
if (((new_bearing - old_bearing).AsDelta().AbsoluteDegrees() < fixed(30)) ||
(CommonInterface::Basic().ground_speed < min_speed))
device_blackboard->SetSpeed(Clamp(fixed(distance) / Layout::FastScale(3),
min_speed, fixed(100)));
device_blackboard->SetTrack(new_bearing);
// change bearing without changing speed if direction change > 30
// 20080815 JMW prevent dragging to stop glider
return true;
}
break;
case DRAG_GESTURE:
const TCHAR* gesture = gestures.Finish();
if (gesture && OnMouseGesture(gesture))
return true;
break;
}
if (click_time > 50 && arm_mapitem_list) {
map_item_timer.Schedule(200);
return true;
}
return false;
}
bool
GlueMapWindow::OnMouseDown(PixelScalar x, PixelScalar y)
{
map_item_timer.Cancel();
#ifdef ENABLE_OPENGL
kinetic_timer.Cancel();
#endif
// Ignore single click event if double click detected
if (ignore_single_click || drag_mode != DRAG_NONE)
return true;
if (is_simulator() && IsCtrlKeyPressed() && visible_projection.IsValid()) {
/* clicking with Alt key held moves the simulator to the click
location instantly */
const GeoPoint location = visible_projection.ScreenToGeo(x, y);
device_blackboard->SetSimulatorLocation(location);
return true;
}
mouse_down_clock.Update();
arm_mapitem_list = HasFocus();
SetFocus();
if (!visible_projection.IsValid()) {
gestures.Start(x, y, Layout::Scale(20));
drag_mode = DRAG_GESTURE;
SetCapture();
return true;
}
drag_start.x = x;
drag_start.y = y;
drag_start_geopoint = visible_projection.ScreenToGeo(x, y);
switch (follow_mode) {
case FOLLOW_SELF:
break;
case FOLLOW_PAN:
drag_mode = DRAG_PAN;
drag_projection = visible_projection;
#ifdef ENABLE_OPENGL
kinetic_x.MouseDown(x);
kinetic_y.MouseDown(y);
#endif
break;
}
if (CommonInterface::Basic().gps.simulator && drag_mode == DRAG_NONE)
if (compare_squared(visible_projection.GetScreenOrigin().x - x,
visible_projection.GetScreenOrigin().y - y,
Layout::Scale(30)) != 1)
drag_mode = DRAG_SIMULATOR;
if (drag_mode == DRAG_NONE ) {
gestures.Start(x, y, Layout::Scale(20));
drag_mode = DRAG_GESTURE;
}
if (drag_mode != DRAG_NONE)
SetCapture();
return true;
}
