Keep only base/extractor.[cc|h].

ui/uilib/static_ex.cc

Index: ui/uilib/static_ex.cc
diff --git a/ui/uilib/static_ex.cc b/ui/uilib/static_ex.cc
deleted file mode 100644
index c038f65f8d84f74bd431a18e12448f645af59fec..0000000000000000000000000000000000000000
--- a/ui/uilib/static_ex.cc
+++ /dev/null
@@ -1,586 +0,0 @@
-// Copyright 2006-2009 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// ========================================================================
-//
-
-// TODO(omaha): need to handle WM_GETTEXT
-// TODO(omaha): need to handle WM_SIZE
-// TODO(omaha): nice to have transparent mode
-
-#include "omaha/ui/uilib/static_ex.h"
-
-#include <shellapi.h>
-#include <strsafe.h>
-#include "omaha/ui/uilib/node_state.h"
-
-const int StaticEx::kBorderNone    = 0;
-const int StaticEx::kBorderLeft    = 1;
-const int StaticEx::kBorderTop     = 2;
-const int StaticEx::kBorderRight   = 4;
-const int StaticEx::kBorderBottom  = 8;
-const int StaticEx::kBorderAll     = kBorderLeft | kBorderTop | kBorderRight |
-                                     kBorderBottom;
-
-HCURSOR StaticEx::hand_cursor_ = NULL;
-
-StaticEx::StaticEx()
-    : margins_(1, 0, 1, 0),  // see comment in h file
-      background_color_(0xffffff),
-      use_background_color_(false),
-      ellipsis_(0),
-      border_(kBorderNone),
-      border_color_(0),
-      default_font_(NULL) {
-}
-
-StaticEx::~StaticEx() {
-  EraseNodes();
-  EraseLines(&lines_);
-}
-
-void StaticEx::Reset() {
-  text_.Empty();
-  EraseNodes();
-  EraseLines(&lines_);
-  default_font_ = NULL;
-}
-
-BOOL StaticEx::SubclassWindow(HWND window) {
-  Reset();
-  // first get text from exising control
-  unsigned length = ::SendMessage(window, WM_GETTEXTLENGTH, 0, 0);
-  CString text;
-  if (length > 0) {
-    TCHAR* buffer = text.GetBufferSetLength(length);
-    ::SendMessage(window,
-                  WM_GETTEXT,
-                  length + 1,
-                  reinterpret_cast<LPARAM>(buffer));
-    text.ReleaseBuffer(-1);
-  }
-
-  // then subclass
-  BOOL result = CWindowImpl<StaticEx>::SubclassWindow(window);
-
-  // set text back (it will parse it and replace text in subclassed control
-  // with readble text)
-  if (result && length > 0) {
-    SetWindowText(text);
-  }
-
-  return result;
-}
-
-HWND StaticEx::UnsubclassWindow(BOOL force /*= FALSE*/) {
-  Reset();  // clean up an old state
-  return CWindowImpl<StaticEx>::UnsubclassWindow(force);
-}
-
-LRESULT StaticEx::OnSetText(UINT msg, WPARAM wparam, LPARAM lparam,
-                            BOOL& handled) {
-  // parse text first, because we will need to get "readable" text
-  text_ = reinterpret_cast<const TCHAR*>(lparam);
-  ParseText();
-
-  // set readable text to subclassed control, this text will be return by
-  // GetWindowText() or WM_GETTEXT. (when GetWindowText is called from another
-  // process it doesn't send WM_GETTEXT but reads text directly from contol)
-  // so we need to set text to it.
-  // Disable redraw, without it calling DefWindowProc would redraw control
-  // immediately without sending WM_PAINT message
-  SetRedraw(FALSE);
-  DefWindowProc(msg, wparam,
-      reinterpret_cast<LPARAM>(static_cast<const TCHAR*>(GetReadableText())));
-  SetRedraw(TRUE);
-
-  // now invalidate to display new text
-  Invalidate();
-
-  handled = TRUE;
-  return 1;
-}
-
-LRESULT StaticEx::OnGetText(UINT, WPARAM wparam, LPARAM lparam, BOOL& handled) {  // NOLINT
-  if (!lparam) return 0;
-  unsigned size = static_cast<unsigned>(wparam);
-  TCHAR* buffer = reinterpret_cast<TCHAR*>(lparam);
-
-  handled = TRUE;
-  unsigned my_size = text_.GetLength();
-  if (my_size < size) {
-    StringCchCopy(buffer, size, text_);
-    return my_size;
-  }
-
-  StringCchCopyN(buffer, size, text_, size - 1);
-  buffer[size - 1] = 0;
-
-  return size - 1;
-}
-
-LRESULT StaticEx::OnGetTextLength(UINT, WPARAM, LPARAM, BOOL& handled) {  // NOLINT
-  handled = TRUE;
-  return text_.GetLength();
-}
-
-void StaticEx::set_background_color(COLORREF back_color) {
-  background_color_ = back_color;
-  use_background_color_ = true;
-  Invalidate();
-}
-
-void StaticEx::set_margins(const RECT& rect) {
-  margins_ = rect;
-  Invalidate();
-}
-
-void StaticEx::set_margins(int left, int top, int right, int bottom) {
-  margins_.SetRect(left, top, right, bottom);
-  Invalidate();
-}
-
-
-LRESULT StaticEx::OnLButtonUp(UINT, WPARAM, LPARAM lparam, BOOL&) {
-  CPoint point(LOWORD(lparam), HIWORD(lparam));
-
-  int height = margins_.top + (border_ & kBorderTop) ? 1 : 0;
-  size_t size = lines_.size();
-  for (size_t i = 0; i < size; i++) {
-    height += lines_[i]->height();
-    if (point.y < height) {
-      CString action;
-      if (lines_[i]->IsUrlUnderMouse(point, &action) && !action.IsEmpty()) {
-        // Notify the parent window to handle the click.
-        LRESULT handled = 0;
-        NMSTATICEX notification = {0};
-        notification.header.hwndFrom = m_hWnd;
-        notification.header.idFrom = GetDlgCtrlID();
-        notification.header.code = NM_STATICEX;
-        notification.action = action;
-
-        HWND parent = GetParent();
-        if (parent) {
-          handled = ::SendMessage(parent, WM_NOTIFY, notification.header.idFrom,
-                                  reinterpret_cast<LPARAM>(&notification));
-          ATLASSERT(handled);
-        }
-      }
-      break;
-    }
-  }
-  return 0;
-}
-
-
-LRESULT StaticEx::OnSetCursor(UINT, WPARAM, LPARAM lparam, BOOL& handled) {  // NOLINT
-  int hit_test = LOWORD(lparam);
-  handled = FALSE;
-  if (hit_test != HTCLIENT) {
-    return 0;
-  }
-
-  POINT position;
-  if (!GetCursorPos(&position))
-    return 0;
-
-  ScreenToClient(&position);
-
-  int offset = margins_.top + (border_ & kBorderTop) ? 1 : 0;
-  size_t size = lines_.size();
-  for (size_t i = 0; i < size; i++) {
-    offset += lines_[i]->height();
-    if (position.y < offset) {
-      if (lines_[i]->IsUrlUnderMouse(position, NULL)) {
-        ::SetCursor(GetHandCursor());
-        handled = TRUE;
-      }
-      break;
-    }
-  }
-
-  return 0;
-}
-
-void StaticEx::set_ellipsis(int ellipsis) {
-  if (ellipsis == DT_END_ELLIPSIS  ||
-      ellipsis == DT_WORD_ELLIPSIS ||
-      ellipsis == DT_PATH_ELLIPSIS ||
-      ellipsis == 0) {
-    ellipsis_ = ellipsis;
-    if (ellipsis != 0)
-      ModifyStyle(0, SS_LEFTNOWORDWRAP);
-    Invalidate();
-  }
-}
-
-void StaticEx::set_border(int border) {
-  border_ = border;
-  Invalidate();
-}
-
-void StaticEx::set_border_color(COLORREF border_color) {
-  border_color_ = border_color;
-  Invalidate();
-}
-
-void StaticEx::ParseText() {
-  EraseNodes();
-  EraseLines(&lines_);
-
-  if (text_.IsEmpty())
-    return;
-
-  if (!default_font_)
-    default_font_ = GetFont();
-
-  NodeState node_state(m_hWnd);
-  node_state.SetStdFont(default_font_);
-
-  const TCHAR* current_string = text_;
-  int current_offset = 0;
-  bool had_good_tag = true;
-  while (*current_string) {
-    current_offset = 0;
-
-    if (had_good_tag) {
-      // if it was a good tag we consumed it and need to start with a new node
-      Node* node = new Node(m_hWnd);
-      nodes_.push_back(node);
-
-      // -1 if there is no Open Bracket "<"
-      current_offset = FindOpenBracket(current_string);
-
-      if (current_offset < 0) {
-        // no tags left, just plain text
-        node->AddText(current_string);
-        node->set_node_state(node_state);
-        break;
-      }
-
-      if (*current_string != _T('<')) {
-        // has some text before the tag
-        node->AddText(CString(current_string, current_offset));
-        node->set_node_state(node_state);
-        current_string += current_offset;
-        continue;
-      }
-
-      int next_offset = node_state.ConsumeTag(current_string + current_offset);
-
-      if (next_offset > 0) {
-        // it was a known tag
-        had_good_tag = true;
-        current_string += current_offset + next_offset;
-      }  else  {
-        // unknown tag, will keep looking
-        had_good_tag = false;
-        node->AddText(CString(current_string, current_offset + 1));
-        node->set_node_state(node_state);
-        current_string += current_offset + 1;
-        continue;
-      }
-    } else {
-      had_good_tag = true;
-    }
-    delete nodes_.back();
-    nodes_.pop_back();
-  }
-}
-
-CString StaticEx::GetReadableText() {
-  CString text;
-  for (size_t i = 0; i < nodes_.size(); i++) {
-    text += nodes_[i]->node_text();
-  }
-  return text;
-}
-
-void StaticEx::EraseNodes() {
-  for (size_t i = 0; i < nodes_.size(); ++i) {
-    delete nodes_[i];
-  }
-  nodes_.clear();
-}
-
-void StaticEx::EraseLines(std::vector<StaticLine*>* lines) {
-  size_t size = lines->size();
-  for (size_t i = 0; i < size; i++) {
-    delete (*lines)[i];
-  }
-  lines->clear();
-}
-
-int StaticEx::FindOpenBracket(const TCHAR* string) {
-  const TCHAR* left_bracket = _tcschr(string, _T('<'));
-
-  if (left_bracket == NULL)
-    return -1;
-
-  return static_cast<int>(left_bracket - string);
-}
-
-LRESULT StaticEx::OnPaint(UINT, WPARAM, LPARAM, BOOL&) {
-  PAINTSTRUCT paint_struct;
-  HDC hdc = BeginPaint(&paint_struct);
-
-  CRect client_rect;
-  GetClientRect(&client_rect);
-
-  CRect working_rect(client_rect);
-
-  working_rect.DeflateRect(margins_);
-  working_rect.DeflateRect((border_ & kBorderLeft)   ? 1 : 0,
-                           (border_ & kBorderTop)    ? 1 : 0,
-                           (border_ & kBorderRight)  ? 1 : 0,
-                           (border_ & kBorderBottom) ? 1 : 0);
-
-  DWORD style = GetStyle();
-
-  EraseLines(&lines_);
-  PrePaint(hdc, &lines_, nodes_, working_rect, style, ellipsis_);
-
-  if (use_background_color_) {
-    FillRect(hdc, &client_rect, CreateSolidBrush(background_color_));
-  } else {
-    HBRUSH brush = reinterpret_cast<HBRUSH>(::SendMessage(GetParent(),
-        WM_CTLCOLORSTATIC, reinterpret_cast<WPARAM>(hdc),
-        reinterpret_cast<LPARAM>(m_hWnd)));
-    if (brush) {
-      ::FillRect(hdc, &client_rect, brush);
-    }
-  }
-
-  if (border_ != kBorderNone)
-    DrawBorder(hdc, client_rect);
-
-  Paint(hdc, lines_, working_rect, style, ellipsis_);
-
-  EndPaint(&paint_struct);
-  return 0;
-}
-
-void StaticEx::PrePaint(HDC hdc, std::vector<StaticLine*>* lines,
-                        const std::vector<Node*>& nodes, RECT rect, DWORD style,
-                        int ellipsis) {
-  if (nodes.empty())
-    return;
-
-  int x = 0;
-  int width = rect.right - rect.left;
-  StaticLine* line = new StaticLine;
-  lines->push_back(line);
-  bool done = false;
-  size_t size = nodes.size();
-  for (size_t i = 0; i < size; ++i) {
-    Node* node = nodes[i];
-    const NodeState& node_state = node->node_state();
-    CString text = node->node_text();
-    int string_len = text.GetLength();
-
-    HFONT font = node_state.GetFont();
-    if (!font)
-      return;
-
-    HFONT old_font = static_cast<HFONT>(SelectObject(hdc, font));
-
-    TEXTMETRIC text_metrics;
-    GetTextMetrics(hdc, &text_metrics);
-
-    int height    = text_metrics.tmHeight + text_metrics.tmExternalLeading;
-    int base_line = text_metrics.tmHeight + text_metrics.tmExternalLeading -
-                    text_metrics.tmDescent;
-    line->AdjustHeight(height);
-    line->AdjustBaseLine(base_line);
-
-    bool single_line = (style & SS_LEFTNOWORDWRAP) != 0;
-
-    int  current_pos = 0;
-    bool more_left   = false;
-    while (true) {
-      int current_length = string_len - current_pos;
-
-      // find LF if any
-      int lf_position = text.Find(_T('\n'), current_pos);
-      if (lf_position == current_pos) {
-        if (single_line) {
-          if (ellipsis)
-            line->AddEllipses();
-          break;
-        }
-        line = new StaticLine;
-        lines->push_back(line);
-        line->AdjustHeight(height);
-        line->AdjustBaseLine(base_line);
-        x = 0;
-
-        current_pos++;
-
-        continue;
-      } else if (lf_position > 0) {
-        current_length = lf_position - current_pos;
-        more_left = true;
-      }
-
-      // check if it will fit in one line
-      int fit  = 0;
-      SIZE string_size;
-      GetTextExtentExPoint(hdc, static_cast<const TCHAR*>(text) + current_pos,
-                           current_length, width - x, &fit, NULL, &string_size);
-
-      if (fit < current_length) {
-        // string doesn't fit, need to move to the next line
-        // find last space
-        int fit_saved = fit;
-        for (; fit > 0; fit--) {
-          if (text.GetAt(current_pos + fit) == _T(' ')) {
-            break;
-          }
-        }
-
-        // if a first word of a node doesn't fit and it starts in a first half
-        // of control then wrap the word on a last char that fits
-        // otherwise move whole node to the next line
-        if ((fit <= 0) && (x < width / 2))
-          fit = fit_saved;
-
-        if (fit > 0) {
-          line->AddNode(node, current_pos, fit, height, base_line, width - x);
-        }
-
-        if (single_line) {
-          if (ellipsis)
-            line->AddEllipses();
-          done = true;
-          break;
-        }
-        line = new StaticLine;
-        lines->push_back(line);
-        line->AdjustHeight(height);
-        line->AdjustBaseLine(base_line);
-        x = 0;
-
-        current_pos += fit;
-        // skip spaces
-        while (text.GetAt(current_pos) == _T(' '))
-          current_pos++;
-        continue;
-      } else {
-        line->AddNode(node, current_pos, fit, height, base_line,
-                      string_size.cx);
-      }
-
-      // done, it fits
-      x += string_size.cx;
-      if (!more_left)
-        break;
-
-      current_pos += current_length;
-      more_left = false;
-    }
-
-    if (old_font)
-      SelectObject(hdc, old_font);
-
-    if (done)
-      break;
-  }
-}
-
-
-void StaticEx::Paint(HDC hdc, const std::vector<StaticLine*>& lines, RECT rect,
-                     DWORD style, int ellipsis) {
-  if ((style & SS_LEFTNOWORDWRAP) == 0) {
-    ellipsis = 0;
-  }
-
-  size_t size = lines.size();
-  int y = rect.top;
-  for (size_t i = 0; i < size; i++) {
-    int height = lines[i]->Paint(hdc, rect.left, rect.right, y, style,
-                                 ellipsis);
-    y += height;
-  }
-}
-
-LRESULT StaticEx::OnEraseBkgnd(UINT /*msg*/, WPARAM /*wparam*/,
-                               LPARAM /*lparam*/, BOOL& handled) {
-  handled = TRUE;
-  return 0;
-}
-
-void StaticEx::DrawBorder(HDC hdc, const CRect& rect) {
-  HGDIOBJ old_object = SelectObject(hdc, GetStockObject(DC_PEN));
-  SetDCPenColor(hdc, border_color_);
-  if (border_ & kBorderLeft) {
-    MoveToEx(hdc, rect.left, rect.top, NULL);
-    LineTo(hdc, rect.left, rect.bottom);
-  }
-  if (border_ & kBorderTop) {
-    MoveToEx(hdc, rect.left, rect.top, NULL);
-    LineTo(hdc, rect.right, rect.top);
-  }
-  if (border_ & kBorderRight) {
-    MoveToEx(hdc, rect.right - 1, rect.top, NULL);
-    LineTo(hdc, rect.right - 1, rect.bottom);
-  }
-  if (border_ & kBorderBottom) {
-    MoveToEx(hdc, rect.left, rect.bottom - 1, NULL);
-    LineTo(hdc, rect.right, rect.bottom - 1);
-  }
-  SelectObject(hdc, old_object);
-}
-
-int StaticEx::GetMinimumHeight(int width) {
-  HDC device_context = CreateCompatibleDC(NULL);
-
-  CRect client_rect;
-  if (width <= 0)
-    GetClientRect(&client_rect);
-  else
-    client_rect.SetRect(0, 0, width, 100);  // last value is not used
-
-  CRect working_rect(client_rect);
-
-  working_rect.DeflateRect(margins_);
-  working_rect.DeflateRect((border_ & kBorderLeft)   ? 1 : 0,
-                           (border_ & kBorderTop)    ? 1 : 0,
-                           (border_ & kBorderRight)  ? 1 : 0,
-                           (border_ & kBorderBottom) ? 1 : 0);
-
-  DWORD style = GetStyle();
-
-  std::vector<StaticLine*> lines;
-  PrePaint(device_context, &lines, nodes_, working_rect, style, ellipsis_);
-
-  DeleteDC(device_context);
-
-  int height = 0;
-  for (unsigned i = 0; i < lines.size(); i++) {
-    height += lines[i]->height();
-  }
-  height += margins_.top + margins_.bottom;
-  height += (border_ & kBorderTop) ? 1 : 0;
-  height += (border_ & kBorderBottom) ? 1 : 0;
-
-  return height;
-}
-
-
-HCURSOR StaticEx::GetHandCursor() {
-  if (hand_cursor_ == NULL) {
-    // Load cursor resource
-    hand_cursor_ = (HCURSOR)LoadCursor(NULL, IDC_HAND);  // doesn't work on NT4!
-  }
-  return hand_cursor_;
-}