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adjust mouse selection calculation for window-padding settings

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Fixes #170
This commit is contained in:
Mitchell Hashimoto
2023-07-02 12:45:06 -07:00
parent 84550f276a
commit 8ca9e14d89
1 changed files with 13 additions and 4 deletions
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17
src/Surface.zig
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@ -2023,23 +2023,32 @@ fn dragLeftClickSingle(
}
fn posToViewport(self: Surface, xpos: f64, ypos: f64) terminal.point.Viewport {
// xpos/ypos need to be adjusted for window padding
// (i.e. "window-padding-*" settings. NOTE we don't adjust for
// "window-padding-balance" because we don't have access to the balance
// amount from the renderer. This is a bug but realistically balanced
// padding is so small it doesn't affect selection. This may not be true
// at large font sizes...
const xpos_adjusted: f64 = xpos - @as(f64, @floatCast(self.padding.left));
const ypos_adjusted: f64 = ypos - @as(f64, @floatCast(self.padding.top));
// xpos and ypos can be negative if while dragging, the user moves the
// mouse off the surface. Likewise, they can be larger than our surface
// width if the user drags out of the surface positively.
return .{
.x = if (xpos < 0) 0 else x: {
.x = if (xpos_adjusted < 0) 0 else x: {
// Our cell is the mouse divided by cell width
const cell_width: f64 = @floatCast(self.cell_size.width);
const x: usize = @intFromFloat(xpos / cell_width);
const x: usize = @intFromFloat(xpos_adjusted / cell_width);
// Can be off the screen if the user drags it out, so max
// it out on our available columns
break :x @min(x, self.grid_size.columns - 1);
},
.y = if (ypos < 0) 0 else y: {
.y = if (ypos_adjusted < 0) 0 else y: {
const cell_height: f64 = @floatCast(self.cell_size.height);
const y: usize = @intFromFloat(ypos / cell_height);
const y: usize = @intFromFloat(ypos_adjusted / cell_height);
break :y @min(y, self.grid_size.rows - 1);
},
};