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Move X-Y pad tooltip updating to a function

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This commit is contained in:
Robbert van der Helm 2022-11-15 17:06:49 +01:00
parent 9de657e04d
commit 8df9575a16
1 changed files with 42 additions and 34 deletions
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76
plugins/diopser/src/editor/xy_pad.rs
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@ -215,6 +215,44 @@ impl XyPad {
self.x_param_base.end_set_parameter(cx);
self.y_param_base.end_set_parameter(cx);
}
/// Used to position the tooltip to the top right of the mouse cursor. If there's not enough
/// space there, the tooltip will be pushed to the left or the right of the cursor.
fn update_tooltip_pos(&mut self, cx: &mut EventContext) {
let bounds = cx.cache.get_bounds(cx.current());
let relative_x = cx.mouse.cursorx - bounds.x;
let relative_y = cx.mouse.cursory - bounds.y;
// These positions need to take DPI scaling into account
let dpi_scale = cx.style.dpi_factor as f32;
let padding = 2.0 * dpi_scale;
// If there's not enough space at the top right, we'll move the tooltip to the
// bottom and/or the left
let tooltip_entity = cx
.tree
.get_last_child(cx.current())
.expect("Missing child view in X-Y pad");
let tooltip_bounds = cx.cache.get_bounds(tooltip_entity);
// NOTE: The width can vary drastically depending on the frequency value, so we'll
// hardcode a minimum width in this comparison to avoid this from jumping
// around. The parameter value updates are a bit delayed when dragging the
// parameter, so we may be using an old width here.
let tooltip_pos_x =
if (relative_x + tooltip_bounds.w.max(150.0) + (padding * 2.0)) >= bounds.w {
relative_x - padding - tooltip_bounds.w
} else {
relative_x + padding
};
let tooltip_pos_y = if (relative_y - tooltip_bounds.h - (padding * 2.0)) <= 0.0 {
relative_y + padding
} else {
relative_y - padding - tooltip_bounds.h
};
self.tooltip_pos_x = Pixels(tooltip_pos_x / dpi_scale);
self.tooltip_pos_y = Pixels(tooltip_pos_y / dpi_scale);
}
}
impl XyPadHandle {
@ -290,42 +328,12 @@ impl View for XyPad {
}
}
WindowEvent::MouseMove(x, y) => {
// This is used to position the tooltip to the top right of the mouse cursor
let bounds = cx.cache.get_bounds(cx.current());
let relative_x = x - bounds.x;
let relative_y = y - bounds.y;
// These positions need to take DPI scaling into account
let dpi_scale = cx.style.dpi_factor as f32;
let padding = 2.0 * dpi_scale;
// If there's not enough space at the top right, we'll move the tooltip to the
// bottom and/or the left
let tooltip_entity = cx
.tree
.get_last_child(cx.current())
.expect("Missing child view in X-Y pad");
let tooltip_bounds = cx.cache.get_bounds(tooltip_entity);
// NOTE: The width can vary drastically depending on the frequency value, so we'll
// hardcode a minimum width in this comparison to avoid this from jumping
// around. The parameter value updates are a bit delayed when dragging the
// parameter, so we may be using an old width here.
let tooltip_pos_x =
if (relative_x + tooltip_bounds.w.max(150.0) + (padding * 2.0)) >= bounds.w {
relative_x - padding - tooltip_bounds.w
} else {
relative_x + padding
};
let tooltip_pos_y = if (relative_y - tooltip_bounds.h - (padding * 2.0)) <= 0.0 {
relative_y + padding
} else {
relative_y - padding - tooltip_bounds.h
};
self.tooltip_pos_x = Pixels(tooltip_pos_x / dpi_scale);
self.tooltip_pos_y = Pixels(tooltip_pos_y / dpi_scale);
// The tooltip should track the mouse position
self.update_tooltip_pos(cx);
if self.drag_active {
let dpi_scale = cx.style.dpi_factor as f32;
// If shift is being held then the drag should be more granular instead of
// absolute
// TODO: Mouse warping is really needed here, but it's not exposed right now