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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #define _USE_MATH_DEFINES // For VC++ to get M_PI. This has to be first. | |
| 6 | |
| 7 #include "ui/compositor/debug_utils.h" | |
| 8 | |
| 9 #include <cmath> | |
| 10 #include <iomanip> | |
| 11 #include <ostream> | |
| 12 #include <string> | |
| 13 | |
| 14 #include "base/logging.h" | |
| 15 #include "base/strings/utf_string_conversions.h" | |
| 16 #include "ui/compositor/layer.h" | |
| 17 #include "ui/gfx/interpolated_transform.h" | |
| 18 #include "ui/gfx/point.h" | |
| 19 #include "ui/gfx/point_conversions.h" | |
| 20 #include "ui/gfx/transform.h" | |
| 21 | |
| 22 using base::UTF8ToWide; | |
| 23 | |
| 24 namespace ui { | |
| 25 | |
| 26 namespace { | |
| 27 | |
| 28 void PrintLayerHierarchyImp(const Layer* layer, | |
| 29 int indent, | |
| 30 gfx::Point mouse_location, | |
| 31 std::wostringstream* out) { | |
| 32 std::string indent_str(indent, ' '); | |
| 33 | |
| 34 layer->transform().TransformPointReverse(&mouse_location); | |
| 35 bool mouse_inside_layer_bounds = layer->bounds().Contains(mouse_location); | |
| 36 mouse_location.Offset(-layer->bounds().x(), -layer->bounds().y()); | |
| 37 | |
| 38 *out << UTF8ToWide(indent_str); | |
| 39 if (mouse_inside_layer_bounds) | |
| 40 *out << L'*'; | |
| 41 else | |
| 42 *out << L' '; | |
| 43 | |
| 44 *out << UTF8ToWide(layer->name()) << L' ' << layer; | |
| 45 | |
| 46 switch (layer->type()) { | |
| 47 case ui::LAYER_NOT_DRAWN: | |
| 48 *out << L" not_drawn"; | |
| 49 break; | |
| 50 case ui::LAYER_TEXTURED: | |
| 51 *out << L" textured"; | |
| 52 if (layer->fills_bounds_opaquely()) | |
| 53 *out << L" opaque"; | |
| 54 break; | |
| 55 case ui::LAYER_SOLID_COLOR: | |
| 56 *out << L" solid"; | |
| 57 break; | |
| 58 case ui::LAYER_NINE_PATCH: | |
| 59 *out << L" nine_patch"; | |
| 60 break; | |
| 61 } | |
| 62 | |
| 63 if (!layer->visible()) | |
| 64 *out << L" !visible"; | |
| 65 | |
| 66 std::string property_indent_str(indent+3, ' '); | |
| 67 *out << L'\n' << UTF8ToWide(property_indent_str); | |
| 68 *out << L"bounds: " << layer->bounds().x() << L',' << layer->bounds().y(); | |
| 69 *out << L' ' << layer->bounds().width() << L'x' << layer->bounds().height(); | |
| 70 if (!layer->subpixel_position_offset().IsZero()) | |
| 71 *out << " " << UTF8ToWide(layer->subpixel_position_offset().ToString()); | |
| 72 | |
| 73 const ui::Layer* mask = const_cast<ui::Layer*>(layer)->layer_mask_layer(); | |
| 74 | |
| 75 if (mask) { | |
| 76 *out << L'\n' << UTF8ToWide(property_indent_str); | |
| 77 *out << L"mask layer: " << std::setprecision(2) | |
| 78 << UTF8ToWide(mask->bounds().ToString()) | |
| 79 << UTF8ToWide(mask->subpixel_position_offset().ToString()); | |
| 80 } | |
| 81 | |
| 82 if (layer->opacity() != 1.0f) { | |
| 83 *out << L'\n' << UTF8ToWide(property_indent_str); | |
| 84 *out << L"opacity: " << std::setprecision(2) << layer->opacity(); | |
| 85 } | |
| 86 | |
| 87 gfx::DecomposedTransform decomp; | |
| 88 if (!layer->transform().IsIdentity() && | |
| 89 gfx::DecomposeTransform(&decomp, layer->transform())) { | |
| 90 *out << L'\n' << UTF8ToWide(property_indent_str); | |
| 91 *out << L"translation: " << std::fixed << decomp.translate[0]; | |
| 92 *out << L", " << decomp.translate[1]; | |
| 93 | |
| 94 *out << L'\n' << UTF8ToWide(property_indent_str); | |
| 95 *out << L"rotation: "; | |
| 96 *out << std::acos(decomp.quaternion[3]) * 360.0 / M_PI; | |
| 97 | |
| 98 *out << L'\n' << UTF8ToWide(property_indent_str); | |
| 99 *out << L"scale: " << decomp.scale[0]; | |
| 100 *out << L", " << decomp.scale[1]; | |
| 101 } | |
| 102 | |
| 103 *out << L'\n'; | |
| 104 | |
| 105 for (size_t i = 0, count = layer->children().size(); i < count; ++i) { | |
| 106 PrintLayerHierarchyImp( | |
| 107 layer->children()[i], indent + 3, mouse_location, out); | |
| 108 } | |
| 109 } | |
| 110 | |
| 111 } // namespace | |
| 112 | |
| 113 void PrintLayerHierarchy(const Layer* layer, gfx::Point mouse_location) { | |
| 114 std::wostringstream out; | |
| 115 out << L"Layer hierarchy:\n"; | |
| 116 PrintLayerHierarchyImp(layer, 0, mouse_location, &out); | |
| 117 // Error so logs can be collected from end-users. | |
| 118 LOG(ERROR) << out.str(); | |
| 119 } | |
| 120 | |
| 121 } // namespace ui | |
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