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apprt/embedded: render in native dpi

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This commit is contained in:
Mitchell Hashimoto
2023-10-21 15:13:27 -07:00
parent 55f681a0fd
commit 597c1a17ae
2 changed files with 19 additions and 13 deletions
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2
src/Inspector.zig
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@ -29,7 +29,7 @@ pub fn setup() void {
io.Fonts,
@constCast(@ptrCast(Surface.face_ttf)),
Surface.face_ttf.len,
24,
32,
font_config,
null,
);

30
src/apprt/embedded.zig
View File

@ -841,6 +841,7 @@ pub const Inspector = struct {
ig_ctx: *cimgui.c.ImGuiContext,
backend: ?Backend = null,
keymap_state: input.Keymap.State = .{},
content_scale: f64 = 1,
/// Our previous instant used to calculate delta time for animations.
instant: ?std.time.Instant = null,
@ -952,23 +953,24 @@ pub const Inspector = struct {
}
pub fn updateContentScale(self: *Inspector, x: f64, y: f64) void {
_ = y;
cimgui.c.igSetCurrentContext(self.ig_ctx);
const io: *cimgui.c.ImGuiIO = cimgui.c.igGetIO();
io.DisplayFramebufferScale = .{
.x = @floatCast(x),
.y = @floatCast(y),
};
// Cache our scale because we use it for cursor position calculations.
self.content_scale = x;
// Setup a new style and scale it appropriately.
const style = cimgui.c.ImGuiStyle_ImGuiStyle();
defer cimgui.c.ImGuiStyle_destroy(style);
cimgui.c.ImGuiStyle_ScaleAllSizes(style, @floatCast(x));
const active_style = cimgui.c.igGetStyle();
active_style.* = style.*;
}
pub fn updateSize(self: *Inspector, width: u32, height: u32) void {
cimgui.c.igSetCurrentContext(self.ig_ctx);
const io: *cimgui.c.ImGuiIO = cimgui.c.igGetIO();
const x_scale: u32 = @intFromFloat(io.DisplayFramebufferScale.x);
const y_scale: u32 = @intFromFloat(io.DisplayFramebufferScale.y);
io.DisplaySize = .{
.x = @floatFromInt(@divFloor(width, x_scale)),
.y = @floatFromInt(@divFloor(height, y_scale)),
};
io.DisplaySize = .{ .x = @floatFromInt(width), .y = @floatFromInt(height) };
}
pub fn mouseButtonCallback(
@ -1015,7 +1017,11 @@ pub const Inspector = struct {
self.queueRender();
cimgui.c.igSetCurrentContext(self.ig_ctx);
const io: *cimgui.c.ImGuiIO = cimgui.c.igGetIO();
cimgui.c.ImGuiIO_AddMousePosEvent(io, @floatCast(x), @floatCast(y));
cimgui.c.ImGuiIO_AddMousePosEvent(
io,
@floatCast(x * self.content_scale),
@floatCast(y * self.content_scale),
);
}
pub fn focusCallback(self: *Inspector, focused: bool) void {