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| 1 // Copyright (c) 2010 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 "views/controls/resize_gripper.h" | |
| 6 | |
| 7 #include "app/resource_bundle.h" | |
| 8 #include "base/logging.h" | |
| 9 #include "grit/app_resources.h" | |
| 10 | |
| 11 namespace views { | |
| 12 | |
| 13 const char ResizeGripper::kViewClassName[] = "views/ResizeGripper"; | |
| 14 | |
| 15 #if defined(OS_WIN) | |
| 16 static HCURSOR g_resize_cursor = NULL; | |
| 17 #endif | |
| 18 | |
| 19 //////////////////////////////////////////////////////////////////////////////// | |
| 20 // ResizeGripper | |
| 21 | |
| 22 ResizeGripper::ResizeGripper(ResizeGripperDelegate* delegate) | |
| 23 : delegate_(delegate), | |
| 24 initial_position_(0), | |
| 25 gripper_visible_(false) { | |
| 26 ResourceBundle &rb = ResourceBundle::GetSharedInstance(); | |
| 27 SkBitmap* gripper_image = rb.GetBitmapNamed(IDR_RESIZE_GRIPPER); | |
| 28 // Explicitly set the image size so that the preferred size is fixed to that | |
| 29 // of the image. If we didn't do this the preferred size would change | |
| 30 // depending upon whether the gripper was visible. | |
| 31 SetImageSize(gfx::Size(gripper_image->width(), gripper_image->height())); | |
| 32 } | |
| 33 | |
| 34 ResizeGripper::~ResizeGripper() { | |
| 35 } | |
| 36 | |
| 37 std::string ResizeGripper::GetClassName() const { | |
| 38 return kViewClassName; | |
| 39 } | |
| 40 | |
| 41 gfx::NativeCursor ResizeGripper::GetCursorForPoint(Event::EventType event_type, | |
| 42 const gfx::Point& p) { | |
| 43 if (!enabled_) | |
| 44 return NULL; | |
| 45 #if defined(OS_WIN) | |
| 46 if (!g_resize_cursor) | |
| 47 g_resize_cursor = LoadCursor(NULL, IDC_SIZEWE); | |
| 48 return g_resize_cursor; | |
| 49 #elif defined(OS_LINUX) | |
| 50 return gdk_cursor_new(GDK_SB_H_DOUBLE_ARROW); | |
| 51 #endif | |
| 52 } | |
| 53 | |
| 54 void ResizeGripper::OnMouseEntered(const views::MouseEvent& event) { | |
| 55 SetGripperVisible(true); | |
| 56 } | |
| 57 | |
| 58 void ResizeGripper::OnMouseExited(const views::MouseEvent& event) { | |
| 59 SetGripperVisible(false); | |
| 60 } | |
| 61 | |
| 62 bool ResizeGripper::OnMousePressed(const views::MouseEvent& event) { | |
| 63 if (!event.IsOnlyLeftMouseButton()) | |
| 64 return false; | |
| 65 | |
| 66 // The resize gripper obviously will move once you start dragging so we need | |
| 67 // to convert coordinates to screen coordinates so that we don't loose our | |
| 68 // bearings. | |
| 69 gfx::Point point(event.x(), 0); | |
| 70 View::ConvertPointToScreen(this, &point); | |
| 71 initial_position_ = point.x(); | |
| 72 | |
| 73 return true; | |
| 74 } | |
| 75 | |
| 76 bool ResizeGripper::OnMouseDragged(const views::MouseEvent& event) { | |
| 77 if (!event.IsLeftMouseButton()) | |
| 78 return false; | |
| 79 | |
| 80 ReportResizeAmount(event.x(), false); | |
| 81 return true; | |
| 82 } | |
| 83 | |
| 84 void ResizeGripper::OnMouseReleased(const views::MouseEvent& event, | |
| 85 bool canceled) { | |
| 86 if (canceled) | |
| 87 ReportResizeAmount(initial_position_, true); | |
| 88 else | |
| 89 ReportResizeAmount(event.x(), true); | |
| 90 SetGripperVisible(HitTest(event.location())); | |
| 91 } | |
| 92 | |
| 93 bool ResizeGripper::GetAccessibleRole(AccessibilityTypes::Role* role) { | |
| 94 DCHECK(role); | |
| 95 *role = AccessibilityTypes::ROLE_SEPARATOR; | |
| 96 return true; | |
| 97 } | |
| 98 | |
| 99 void ResizeGripper::ReportResizeAmount(int resize_amount, bool last_update) { | |
| 100 gfx::Point point(resize_amount, 0); | |
| 101 View::ConvertPointToScreen(this, &point); | |
| 102 resize_amount = point.x() - initial_position_; | |
| 103 | |
| 104 if (base::i18n::IsRTL()) | |
| 105 resize_amount = -1 * resize_amount; | |
| 106 delegate_->OnResize(resize_amount, last_update); | |
| 107 } | |
| 108 | |
| 109 void ResizeGripper::SetGripperVisible(bool visible) { | |
| 110 if (visible == gripper_visible_) | |
| 111 return; | |
| 112 | |
| 113 gripper_visible_ = visible; | |
| 114 if (gripper_visible_) { | |
| 115 ResourceBundle& rb = ResourceBundle::GetSharedInstance(); | |
| 116 SkBitmap* gripper_image = rb.GetBitmapNamed(IDR_RESIZE_GRIPPER); | |
| 117 SetImage(gripper_image); | |
| 118 } else { | |
| 119 SetImage(NULL); | |
| 120 } | |
| 121 } | |
| 122 | |
| 123 } // namespace views | |
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Chromium Code Reviews
Issue 3052011:
Make the resize gripper invisible.... (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/