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More precise 1-position movement with space bar slider

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Moving the cursor by 1 position is hard because the finger has to travel
far enough to activate the slider but then becomes very sensitive.

With this change, swiping on the space bar slider will immediately move
the cursor by 1 position but the slider will activate only if the finger
travel an other swiping distance.
This commit is contained in:
Jules Aguillon 2025-01-11 14:12:43 +01:00
parent a3023a7f18
commit 7b8f739400
1 changed files with 24 additions and 9 deletions
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33
srcs/juloo.keyboard2/Pointers.java
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@ -299,7 +299,7 @@ public final class Pointers implements Handler.Callback
(new_value.equals(ptr.key.getKeyValue(5))
|| new_value.equals(ptr.key.getKeyValue(6))))
{
startSliding(ptr, x);
startSliding(ptr, x, dx < 0 ? -1 : 1);
}
_handler.onPointerDown(new_value, true);
}
@ -453,11 +453,12 @@ public final class Pointers implements Handler.Callback
// Sliding
void startSliding(Pointer ptr, float x)
void startSliding(Pointer ptr, float x, int dir)
{
stopLongPress(ptr);
ptr.flags |= FLAG_P_SLIDING;
ptr.sliding = new Sliding(x);
ptr.sliding.move(ptr, dir);
}
/** Return the [FLAG_P_*] flags that correspond to pressing [kv]. */
@ -567,16 +568,16 @@ public final class Pointers implements Handler.Callback
/** Accumulated distance since last event. */
float d = 0.f;
/** The slider speed changes depending on the pointer speed. */
float speed = 1.f;
float speed = 0.5f;
/** Coordinate of the last move. */
float last_x;
/** [System.currentTimeMillis()] at the time of the last move. */
long last_move_ms;
/** [System.currentTimeMillis()] at the time of the last move. Equals to
[-1] when the sliding hasn't started yet. */
long last_move_ms = -1;
public Sliding(float x)
{
last_x = x;
last_move_ms = System.currentTimeMillis();
}
static final float SPEED_SMOOTHING = 0.7f;
@ -585,6 +586,15 @@ public final class Pointers implements Handler.Callback
public void onTouchMove(Pointer ptr, float x)
{
// Start sliding only after the pointer has travelled an other distance.
// This allows to trigger the slider movements only once with a short
// swipe.
if (last_move_ms == -1)
{
if (Math.abs(last_x - x) < _config.swipe_dist_px)
return;
last_move_ms = System.currentTimeMillis();
}
d += (x - last_x) * speed / _config.slide_step_px;
update_speed(x);
// Send an event when [abs(d)] exceeds [1].
@ -592,9 +602,7 @@ public final class Pointers implements Handler.Callback
if (d_ != 0)
{
d -= d_;
int key_index = (d_ < 0) ? 5 : 6;
ptr.value = _handler.modifyKey(ptr.key.keys[key_index], ptr.modifiers);
send_key(ptr, Math.abs(d_));
move(ptr, d_);
}
}
@ -607,6 +615,13 @@ public final class Pointers implements Handler.Callback
_handler.onPointerFlagsChanged(false);
}
public void move(Pointer ptr, int d_)
{
int key_index = (d_ < 0) ? 5 : 6;
ptr.value = _handler.modifyKey(ptr.key.keys[key_index], ptr.modifiers);
send_key(ptr, Math.abs(d_));
}
/** Send the pressed key [n] times. */
void send_key(Pointer ptr, int n)
{