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GskCanvas: respect colorFilter in all drawing operations

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This commit is contained in:
Julian Winkler
2025-10-04 20:50:56 +02:00
parent d78fb53ce3
commit 90bb5e4d10
1 changed files with 20 additions and 0 deletions
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20
src/api-impl-jni/graphics/android_graphics_GskCanvas.c
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@@ -25,7 +25,11 @@ JNIEXPORT void JNICALL Java_android_graphics_GskCanvas_native_1drawRect(JNIEnv *
GdkSnapshot *snapshot = (GdkSnapshot *)_PTR(snapshot_ptr);
struct AndroidPaint *paint = _PTR(paint_ptr);
graphene_rect_t bounds = GRAPHENE_RECT_INIT(left, top, right - left, bottom - top);
if (paint->use_color_filter)
gtk_snapshot_push_color_matrix(snapshot, &paint->color_matrix, &paint->color_offset);
gtk_snapshot_append_color(snapshot, &paint->color, &bounds);
if (paint->use_color_filter)
gtk_snapshot_pop(snapshot);
}
JNIEXPORT void JNICALL Java_android_graphics_GskCanvas_native_1drawPath(JNIEnv *env, jclass this_class, jlong snapshot_ptr, jlong path_ptr, jlong paint_ptr)
@@ -33,12 +37,16 @@ JNIEXPORT void JNICALL Java_android_graphics_GskCanvas_native_1drawPath(JNIEnv *
GtkSnapshot *snapshot = GTK_SNAPSHOT(_PTR(snapshot_ptr));
GskPath *path = _PTR(path_ptr);
struct AndroidPaint *paint = _PTR(paint_ptr);
if (paint->use_color_filter)
gtk_snapshot_push_color_matrix(snapshot, &paint->color_matrix, &paint->color_offset);
if (paint->is_stroke) {
gtk_snapshot_append_stroke(snapshot, path, paint->gsk_stroke, &paint->color);
}
if (paint->is_fill) {
gtk_snapshot_append_fill(snapshot, path, GSK_FILL_RULE_WINDING, &paint->color);
}
if (paint->use_color_filter)
gtk_snapshot_pop(snapshot);
}
JNIEXPORT void JNICALL Java_android_graphics_GskCanvas_native_1translate(JNIEnv *env, jclass this_class, jlong snapshot_ptr, jfloat dx, jfloat dy)
@@ -78,7 +86,11 @@ JNIEXPORT void JNICALL Java_android_graphics_GskCanvas_native_1drawLine(JNIEnv *
gtk_snapshot_rotate(snapshot, rotation * 180 / M_PI);
float length = sqrt((x1 - x0) * (x1 - x0) + (y1 - y0) * (y1 - y0));
float stroke_width = gsk_stroke_get_line_width(paint->gsk_stroke);
if (paint->use_color_filter)
gtk_snapshot_push_color_matrix(snapshot, &paint->color_matrix, &paint->color_offset);
gtk_snapshot_append_color(snapshot, &paint->color, &GRAPHENE_RECT_INIT(0, -stroke_width / 2, length, stroke_width));
if (paint->use_color_filter)
gtk_snapshot_pop(snapshot);
gtk_snapshot_restore(snapshot);
}
@@ -109,9 +121,13 @@ JNIEXPORT void JNICALL Java_android_graphics_GskCanvas_native_1drawText(JNIEnv *
x -= rect.width / 2.f;
else if (paint->alignment == PANGO_ALIGN_RIGHT)
x -= rect.width;
if (paint->use_color_filter)
gtk_snapshot_push_color_matrix(snapshot, &paint->color_matrix, &paint->color_offset);
gtk_snapshot_translate(snapshot, &GRAPHENE_POINT_INIT(x, y));
gtk_snapshot_append_layout(snapshot, layout, &paint->color);
gtk_snapshot_translate(snapshot, &GRAPHENE_POINT_INIT(-x, -y));
if (paint->use_color_filter)
gtk_snapshot_pop(snapshot);
g_object_unref(layout);
}
@@ -132,6 +148,8 @@ JNIEXPORT void JNICALL Java_android_graphics_GskCanvas_native_1drawRoundRect(JNI
};
float width = gsk_stroke_get_line_width(paint->gsk_stroke);
const float widths[4] = {width, width, width, width};
if (paint->use_color_filter)
gtk_snapshot_push_color_matrix(snapshot, &paint->color_matrix, &paint->color_offset);
if (paint->is_fill) {
gtk_snapshot_push_rounded_clip(snapshot, &round_rect);
gtk_snapshot_append_color(snapshot, gdk_color, &round_rect.bounds);
@@ -140,6 +158,8 @@ JNIEXPORT void JNICALL Java_android_graphics_GskCanvas_native_1drawRoundRect(JNI
if (paint->is_stroke) {
gtk_snapshot_append_border(snapshot, &round_rect, widths, gdk_color);
}
if (paint->use_color_filter)
gtk_snapshot_pop(snapshot);
}
JNIEXPORT void JNICALL Java_android_graphics_GskCanvas_native_1scale(JNIEnv *env, jclass this_class, jlong snapshot_ptr, jfloat x, jfloat y)