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 <iostream> 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 namespace ui { 23 24 namespace { 25 26 void PrintLayerHierarchyImp(const Layer* layer, 27 int indent, 28 gfx::Point mouse_location, 29 std::wostringstream* out) { 30 std::string indent_str(indent, ' '); 31 std::string content_indent_str(indent+1, ' '); 32 33 layer->transform().TransformPointReverse(mouse_location); 34 bool mouse_inside_layer_bounds = layer->bounds().Contains(mouse_location); 35 mouse_location.Offset(-layer->bounds().x(), -layer->bounds().y()); 36 37 *out << UTF8ToWide(indent_str); 38 if (mouse_inside_layer_bounds) 39 *out << L'*'; 40 else 41 *out << L' '; 42 43 *out << UTF8ToWide(layer->name()) << L' ' << layer; 44 45 switch (layer->type()) { 46 case ui::LAYER_NOT_DRAWN: 47 *out << L" not_drawn"; 48 break; 49 case ui::LAYER_TEXTURED: 50 *out << L" textured"; 51 if (layer->fills_bounds_opaquely()) 52 *out << L" opaque"; 53 break; 54 case ui::LAYER_SOLID_COLOR: 55 *out << L" solid"; 56 break; 57 } 58 59 if (!layer->visible()) 60 *out << L" !visible"; 61 62 std::string property_indent_str(indent+3, ' '); 63 *out << L'\n' << UTF8ToWide(property_indent_str); 64 *out << L"bounds: " << layer->bounds().x() << L',' << layer->bounds().y(); 65 *out << L' ' << layer->bounds().width() << L'x' << layer->bounds().height(); 66 67 if (layer->opacity() != 1.0f) { 68 *out << L'\n' << UTF8ToWide(property_indent_str); 69 *out << L"opacity: " << std::setprecision(2) << layer->opacity(); 70 } 71 72 gfx::DecomposedTransform decomp; 73 if (!layer->transform().IsIdentity() && 74 gfx::DecomposeTransform(&decomp, layer->transform())) { 75 *out << L'\n' << UTF8ToWide(property_indent_str); 76 *out << L"translation: " << std::fixed << decomp.translate[0]; 77 *out << L", " << decomp.translate[1]; 78 79 *out << L'\n' << UTF8ToWide(property_indent_str); 80 *out << L"rotation: "; 81 *out << std::acos(decomp.quaternion[3]) * 360.0 / M_PI; 82 83 *out << L'\n' << UTF8ToWide(property_indent_str); 84 *out << L"scale: " << decomp.scale[0]; 85 *out << L", " << decomp.scale[1]; 86 } 87 88 *out << L'\n'; 89 90 for (size_t i = 0, count = layer->children().size(); i < count; ++i) { 91 PrintLayerHierarchyImp( 92 layer->children()[i], indent + 3, mouse_location, out); 93 } 94 } 95 96 } // namespace 97 98 void PrintLayerHierarchy(const Layer* layer, gfx::Point mouse_location) { 99 std::wostringstream out; 100 out << L"Layer hierarchy:\n"; 101 PrintLayerHierarchyImp(layer, 0, mouse_location, &out); 102 // Error so logs can be collected from end-users. 103 LOG(ERROR) << out.str(); 104 } 105 106 } // namespace ui 107