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| 1 // Copyright 2014 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 #include "ui/base/cursor/image_cursors.h" | |
| 6 | |
| 7 #include <float.h> | |
| 8 | |
| 9 #include "base/logging.h" | |
| 10 #include "base/strings/string16.h" | |
| 11 #include "ui/base/cursor/cursor.h" | |
| 12 #include "ui/base/cursor/cursor_loader.h" | |
| 13 #include "ui/base/cursor/cursors_aura.h" | |
| 14 #include "ui/gfx/display.h" | |
| 15 #include "ui/gfx/point.h" | |
| 16 | |
| 17 namespace ui { | |
| 18 | |
| 19 namespace { | |
| 20 | |
| 21 const int kImageCursorIds[] = { | |
| 22 kCursorNull, | |
| 23 kCursorPointer, | |
| 24 kCursorNoDrop, | |
| 25 kCursorNotAllowed, | |
| 26 kCursorCopy, | |
| 27 kCursorHand, | |
| 28 kCursorMove, | |
| 29 kCursorNorthEastResize, | |
| 30 kCursorSouthWestResize, | |
| 31 kCursorSouthEastResize, | |
| 32 kCursorNorthWestResize, | |
| 33 kCursorNorthResize, | |
| 34 kCursorSouthResize, | |
| 35 kCursorEastResize, | |
| 36 kCursorWestResize, | |
| 37 kCursorIBeam, | |
| 38 kCursorAlias, | |
| 39 kCursorCell, | |
| 40 kCursorContextMenu, | |
| 41 kCursorCross, | |
| 42 kCursorHelp, | |
| 43 kCursorVerticalText, | |
| 44 kCursorZoomIn, | |
| 45 kCursorZoomOut, | |
| 46 kCursorRowResize, | |
| 47 kCursorColumnResize, | |
| 48 kCursorEastWestResize, | |
| 49 kCursorNorthSouthResize, | |
| 50 kCursorNorthEastSouthWestResize, | |
| 51 kCursorNorthWestSouthEastResize, | |
| 52 kCursorGrab, | |
| 53 kCursorGrabbing, | |
| 54 }; | |
| 55 | |
| 56 const int kAnimatedCursorIds[] = { | |
| 57 kCursorWait, | |
| 58 kCursorProgress | |
| 59 }; | |
| 60 | |
| 61 } // namespace | |
| 62 | |
| 63 ImageCursors::ImageCursors() : cursor_set_(CURSOR_SET_NORMAL) { | |
| 64 } | |
| 65 | |
| 66 ImageCursors::~ImageCursors() { | |
| 67 } | |
| 68 | |
| 69 float ImageCursors::GetScale() const { | |
| 70 if (!cursor_loader_) { | |
| 71 NOTREACHED(); | |
| 72 // Returning default on release build as it's not serious enough to crash | |
| 73 // even if this ever happens. | |
| 74 return 1.0f; | |
| 75 } | |
| 76 return cursor_loader_->scale(); | |
| 77 } | |
| 78 | |
| 79 gfx::Display::Rotation ImageCursors::GetRotation() const { | |
| 80 if (!cursor_loader_) { | |
| 81 NOTREACHED(); | |
| 82 // Returning default on release build as it's not serious enough to crash | |
| 83 // even if this ever happens. | |
| 84 return gfx::Display::ROTATE_0; | |
| 85 } | |
| 86 return cursor_loader_->rotation(); | |
| 87 } | |
| 88 | |
| 89 bool ImageCursors::SetDisplay(const gfx::Display& display, | |
| 90 float scale_factor) { | |
| 91 if (!cursor_loader_) { | |
| 92 cursor_loader_.reset(CursorLoader::Create()); | |
| 93 } else if (cursor_loader_->rotation() == display.rotation() && | |
| 94 cursor_loader_->scale() == scale_factor) { | |
| 95 return false; | |
| 96 } | |
| 97 | |
| 98 cursor_loader_->set_rotation(display.rotation()); | |
| 99 cursor_loader_->set_scale(scale_factor); | |
| 100 ReloadCursors(); | |
| 101 return true; | |
| 102 } | |
| 103 | |
| 104 void ImageCursors::ReloadCursors() { | |
| 105 float device_scale_factor = cursor_loader_->scale(); | |
| 106 | |
| 107 cursor_loader_->UnloadAll(); | |
| 108 | |
| 109 for (size_t i = 0; i < arraysize(kImageCursorIds); ++i) { | |
| 110 int resource_id = -1; | |
| 111 gfx::Point hot_point; | |
| 112 bool success = GetCursorDataFor(cursor_set_, | |
| 113 kImageCursorIds[i], | |
| 114 device_scale_factor, | |
| 115 &resource_id, | |
| 116 &hot_point); | |
| 117 DCHECK(success); | |
| 118 cursor_loader_->LoadImageCursor(kImageCursorIds[i], resource_id, hot_point); | |
| 119 } | |
| 120 for (size_t i = 0; i < arraysize(kAnimatedCursorIds); ++i) { | |
| 121 int resource_id = -1; | |
| 122 gfx::Point hot_point; | |
| 123 bool success = GetAnimatedCursorDataFor(cursor_set_, | |
| 124 kAnimatedCursorIds[i], | |
| 125 device_scale_factor, | |
| 126 &resource_id, | |
| 127 &hot_point); | |
| 128 DCHECK(success); | |
| 129 cursor_loader_->LoadAnimatedCursor(kAnimatedCursorIds[i], | |
| 130 resource_id, | |
| 131 hot_point, | |
| 132 kAnimatedCursorFrameDelayMs); | |
| 133 } | |
| 134 } | |
| 135 | |
| 136 void ImageCursors::SetCursorSet(CursorSetType cursor_set) { | |
| 137 if (cursor_set_ == cursor_set) | |
| 138 return; | |
| 139 | |
| 140 cursor_set_ = cursor_set; | |
| 141 | |
| 142 if (cursor_loader_.get()) | |
| 143 ReloadCursors(); | |
| 144 } | |
| 145 | |
| 146 void ImageCursors::SetPlatformCursor(gfx::NativeCursor* cursor) { | |
| 147 cursor_loader_->SetPlatformCursor(cursor); | |
| 148 } | |
| 149 | |
| 150 } // namespace ui | |
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