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ttk: Use weston_matrix_init_transform in toy toolkit

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Setup the cairo matrix with our new transform function.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
This commit is contained in:
Derek Foreman 2022-12-21 10:21:35 -06:00 committed by Daniel Stone
parent d98255de78
commit 3012934a6d
2 changed files with 10 additions and 70 deletions
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1
clients/meson.build
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@ -20,6 +20,7 @@ srcs_toytoolkit = [
deps_toytoolkit = [
dep_wayland_client,
dep_lib_cairo_shared,
dep_matrix_c,
dep_xkbcommon,
dependency('wayland-cursor'),
cc.find_library('util'),

79
clients/window.c
View file

@ -61,6 +61,7 @@
#include "relative-pointer-unstable-v1-client-protocol.h"
#include "shared/os-compatibility.h"
#include "shared/string-helpers.h"
#include "libweston/matrix.h"
#include "window.h"
#include "viewporter-client-protocol.h"
@ -1592,78 +1593,16 @@ static void
widget_cairo_update_transform(struct widget *widget, cairo_t *cr)
{
struct surface *surface = widget->surface;
double angle;
struct weston_matrix matrix;
cairo_matrix_t m;
enum wl_output_transform transform;
int surface_width, surface_height;
int translate_x, translate_y;
int32_t scale;
surface_width = surface->allocation.width;
surface_height = surface->allocation.height;
transform = surface->buffer_transform;
scale = surface->buffer_scale;
switch (transform) {
case WL_OUTPUT_TRANSFORM_FLIPPED:
case WL_OUTPUT_TRANSFORM_FLIPPED_90:
case WL_OUTPUT_TRANSFORM_FLIPPED_180:
case WL_OUTPUT_TRANSFORM_FLIPPED_270:
cairo_matrix_init(&m, -1, 0, 0, 1, 0, 0);
break;
default:
cairo_matrix_init_identity(&m);
break;
}
switch (transform) {
case WL_OUTPUT_TRANSFORM_NORMAL:
default:
angle = 0;
translate_x = 0;
translate_y = 0;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED:
angle = 0;
translate_x = surface_width;
translate_y = 0;
break;
case WL_OUTPUT_TRANSFORM_90:
angle = M_PI + M_PI_2;
translate_x = 0;
translate_y = surface_width;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED_90:
angle = M_PI + M_PI_2;
translate_x = 0;
translate_y = 0;
break;
case WL_OUTPUT_TRANSFORM_180:
angle = M_PI;
translate_x = surface_width;
translate_y = surface_height;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED_180:
angle = M_PI;
translate_x = 0;
translate_y = surface_height;
break;
case WL_OUTPUT_TRANSFORM_270:
angle = M_PI_2;
translate_x = surface_height;
translate_y = 0;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED_270:
angle = M_PI_2;
translate_x = surface_height;
translate_y = surface_width;
break;
}
cairo_scale(cr, scale, scale);
cairo_translate(cr, translate_x, translate_y);
cairo_rotate(cr, angle);
weston_matrix_init_transform(&matrix, surface->buffer_transform,
0, 0,
surface->allocation.width,
surface->allocation.height,
surface->buffer_scale);
cairo_matrix_init(&m, matrix.d[0], matrix.d[4], matrix.d[1],
matrix.d[5], matrix.d[12], matrix.d[13]);
cairo_transform(cr, &m);
}