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Clean up

This commit is contained in:
Přemysl Eric Janouch 2021-12-15 03:52:54 +01:00
parent 7297c40f93
commit bff2b92c9e
Signed by: p
GPG Key ID: A0420B94F92B9493
1 changed files with 41 additions and 35 deletions
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76
fastiv-view.c
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@ -165,6 +165,46 @@ get_display_dimensions(FastivView *self, int *width, int *height)
*height = ceil(h * self->scale);
}
static cairo_matrix_t
get_orientation_matrix(FastivIoOrientation o, double width, double height)
{
cairo_matrix_t matrix = {};
cairo_matrix_init_identity(&matrix);
switch (o) {
case FastivIoOrientation90:
cairo_matrix_rotate(&matrix, -M_PI_2);
cairo_matrix_translate(&matrix, -width, 0);
break;
case FastivIoOrientation180:
cairo_matrix_scale(&matrix, -1, -1);
cairo_matrix_translate(&matrix, -width, -height);
break;
case FastivIoOrientation270:
cairo_matrix_rotate(&matrix, +M_PI_2);
cairo_matrix_translate(&matrix, 0, -height);
break;
case FastivIoOrientationMirror0:
cairo_matrix_scale(&matrix, -1, +1);
cairo_matrix_translate(&matrix, -width, 0);
break;
case FastivIoOrientationMirror90:
cairo_matrix_rotate(&matrix, +M_PI_2);
cairo_matrix_scale(&matrix, -1, +1);
cairo_matrix_translate(&matrix, -width, -height);
break;
case FastivIoOrientationMirror180:
cairo_matrix_scale(&matrix, +1, -1);
cairo_matrix_translate(&matrix, 0, -height);
break;
case FastivIoOrientationMirror270:
cairo_matrix_rotate(&matrix, -M_PI_2);
cairo_matrix_scale(&matrix, -1, +1);
default:
break;
}
return matrix;
}
static void
fastiv_view_get_preferred_height(
GtkWidget *widget, gint *minimum, gint *natural)
@ -320,41 +360,7 @@ fastiv_view_draw(GtkWidget *widget, cairo_t *cr)
cairo_scale(cr, self->scale, self->scale);
cairo_set_source_surface(cr, self->frame, 0, 0);
cairo_matrix_t matrix = {};
cairo_matrix_init_identity(&matrix);
switch (self->orientation) {
case FastivIoOrientation90:
cairo_matrix_rotate(&matrix, -M_PI_2);
cairo_matrix_translate(&matrix, -sw, 0);
break;
case FastivIoOrientation180:
cairo_matrix_scale(&matrix, -1, -1);
cairo_matrix_translate(&matrix, -sw, -sh);
break;
case FastivIoOrientation270:
cairo_matrix_rotate(&matrix, +M_PI_2);
cairo_matrix_translate(&matrix, 0, -sh);
break;
case FastivIoOrientationMirror0:
cairo_matrix_scale(&matrix, -1, +1);
cairo_matrix_translate(&matrix, -sw, 0);
break;
case FastivIoOrientationMirror90:
cairo_matrix_rotate(&matrix, +M_PI_2);
cairo_matrix_scale(&matrix, -1, +1);
cairo_matrix_translate(&matrix, -sw, -sh);
break;
case FastivIoOrientationMirror180:
cairo_matrix_scale(&matrix, +1, -1);
cairo_matrix_translate(&matrix, 0, -sh);
break;
case FastivIoOrientationMirror270:
cairo_matrix_rotate(&matrix, -M_PI_2);
cairo_matrix_scale(&matrix, -1, +1);
default:
break;
}
cairo_matrix_t matrix = get_orientation_matrix(self->orientation, sw, sh);
cairo_pattern_t *pattern = cairo_get_source(cr);
cairo_pattern_set_matrix(pattern, &matrix);
cairo_pattern_set_extend(pattern, CAIRO_EXTEND_PAD);