| // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/gfx/native_theme.h" |
| |
| #include <windows.h> |
| #include <uxtheme.h> |
| #include <vsstyle.h> |
| #include <vssym32.h> |
| |
| #include "base/gfx/gdi_util.h" |
| #include "base/gfx/rect.h" |
| #include "base/logging.h" |
| #include "base/scoped_handle.h" |
| #include "skia/ext/platform_canvas.h" |
| #include "skia/ext/skia_utils_win.h" |
| #include "third_party/skia/include/core/SkShader.h" |
| |
| namespace { |
| |
| void SetCheckerboardShader(SkPaint* paint, const RECT& align_rect) { |
| // Create a 2x2 checkerboard pattern using the 3D face and highlight colors. |
| SkColor face = skia::COLORREFToSkColor(GetSysColor(COLOR_3DFACE)); |
| SkColor highlight = skia::COLORREFToSkColor(GetSysColor(COLOR_3DHILIGHT)); |
| SkColor buffer[] = { face, highlight, highlight, face }; |
| // Confusing bit: we first create a temporary bitmap with our desired pattern, |
| // then copy it to another bitmap. The temporary bitmap doesn't take |
| // ownership of the pixel data, and so will point to garbage when this |
| // function returns. The copy will copy the pixel data into a place owned by |
| // the bitmap, which is in turn owned by the shader, etc., so it will live |
| // until we're done using it. |
| SkBitmap temp_bitmap; |
| temp_bitmap.setConfig(SkBitmap::kARGB_8888_Config, 2, 2); |
| temp_bitmap.setPixels(buffer); |
| SkBitmap bitmap; |
| temp_bitmap.copyTo(&bitmap, temp_bitmap.config()); |
| SkShader* shader = SkShader::CreateBitmapShader(bitmap, |
| SkShader::kRepeat_TileMode, |
| SkShader::kRepeat_TileMode); |
| |
| // Align the pattern with the upper corner of |align_rect|. |
| SkMatrix matrix; |
| matrix.setTranslate(SkIntToScalar(align_rect.left), |
| SkIntToScalar(align_rect.top)); |
| shader->setLocalMatrix(matrix); |
| paint->setShader(shader)->safeUnref(); |
| } |
| |
| } // namespace |
| |
| namespace gfx { |
| |
| /* static */ |
| const NativeTheme* NativeTheme::instance() { |
| // The global NativeTheme instance. |
| static const NativeTheme s_native_theme; |
| return &s_native_theme; |
| } |
| |
| NativeTheme::NativeTheme() |
| : theme_dll_(LoadLibrary(L"uxtheme.dll")), |
| draw_theme_(NULL), |
| draw_theme_ex_(NULL), |
| get_theme_color_(NULL), |
| get_theme_content_rect_(NULL), |
| get_theme_part_size_(NULL), |
| open_theme_(NULL), |
| close_theme_(NULL), |
| set_theme_properties_(NULL), |
| is_theme_active_(NULL), |
| get_theme_int_(NULL) { |
| if (theme_dll_) { |
| draw_theme_ = reinterpret_cast<DrawThemeBackgroundPtr>( |
| GetProcAddress(theme_dll_, "DrawThemeBackground")); |
| draw_theme_ex_ = reinterpret_cast<DrawThemeBackgroundExPtr>( |
| GetProcAddress(theme_dll_, "DrawThemeBackgroundEx")); |
| get_theme_color_ = reinterpret_cast<GetThemeColorPtr>( |
| GetProcAddress(theme_dll_, "GetThemeColor")); |
| get_theme_content_rect_ = reinterpret_cast<GetThemeContentRectPtr>( |
| GetProcAddress(theme_dll_, "GetThemeBackgroundContentRect")); |
| get_theme_part_size_ = reinterpret_cast<GetThemePartSizePtr>( |
| GetProcAddress(theme_dll_, "GetThemePartSize")); |
| open_theme_ = reinterpret_cast<OpenThemeDataPtr>( |
| GetProcAddress(theme_dll_, "OpenThemeData")); |
| close_theme_ = reinterpret_cast<CloseThemeDataPtr>( |
| GetProcAddress(theme_dll_, "CloseThemeData")); |
| set_theme_properties_ = reinterpret_cast<SetThemeAppPropertiesPtr>( |
| GetProcAddress(theme_dll_, "SetThemeAppProperties")); |
| is_theme_active_ = reinterpret_cast<IsThemeActivePtr>( |
| GetProcAddress(theme_dll_, "IsThemeActive")); |
| get_theme_int_ = reinterpret_cast<GetThemeIntPtr>( |
| GetProcAddress(theme_dll_, "GetThemeInt")); |
| } |
| memset(theme_handles_, 0, sizeof(theme_handles_)); |
| } |
| |
| NativeTheme::~NativeTheme() { |
| if (theme_dll_) { |
| // todo (cpu): fix this soon. |
| // CloseHandles(); |
| FreeLibrary(theme_dll_); |
| } |
| } |
| |
| HRESULT NativeTheme::PaintButton(HDC hdc, |
| int part_id, |
| int state_id, |
| int classic_state, |
| RECT* rect) const { |
| HANDLE handle = GetThemeHandle(BUTTON); |
| if (handle && draw_theme_) |
| return draw_theme_(handle, hdc, part_id, state_id, rect, NULL); |
| |
| // Draw it manually. |
| // All pressed states have both low bits set, and no other states do. |
| const bool focused = ((state_id & ETS_FOCUSED) == ETS_FOCUSED); |
| const bool pressed = ((state_id & PBS_PRESSED) == PBS_PRESSED); |
| if ((BP_PUSHBUTTON == part_id) && (pressed || focused)) { |
| // BP_PUSHBUTTON has a focus rect drawn around the outer edge, and the |
| // button itself is shrunk by 1 pixel. |
| HBRUSH brush = GetSysColorBrush(COLOR_3DDKSHADOW); |
| if (brush) { |
| FrameRect(hdc, rect, brush); |
| InflateRect(rect, -1, -1); |
| } |
| } |
| DrawFrameControl(hdc, rect, DFC_BUTTON, classic_state); |
| |
| // Draw the focus rectangle (the dotted line box) only on buttons. For radio |
| // and checkboxes, we let webkit draw the focus rectangle (orange glow). |
| if ((BP_PUSHBUTTON == part_id) && focused) { |
| // The focus rect is inside the button. The exact number of pixels depends |
| // on whether we're in classic mode or using uxtheme. |
| if (handle && get_theme_content_rect_) { |
| get_theme_content_rect_(handle, hdc, part_id, state_id, rect, rect); |
| } else { |
| InflateRect(rect, -GetSystemMetrics(SM_CXEDGE), |
| -GetSystemMetrics(SM_CYEDGE)); |
| } |
| DrawFocusRect(hdc, rect); |
| } |
| |
| return S_OK; |
| } |
| |
| HRESULT NativeTheme::PaintDialogBackground(HDC hdc, bool active, |
| RECT* rect) const { |
| HANDLE handle = GetThemeHandle(WINDOW); |
| if (handle && draw_theme_) { |
| return draw_theme_(handle, hdc, WP_DIALOG, |
| active ? FS_ACTIVE : FS_INACTIVE, rect, NULL); |
| } |
| |
| // Classic just renders a flat color background. |
| FillRect(hdc, rect, reinterpret_cast<HBRUSH>(COLOR_3DFACE + 1)); |
| return S_OK; |
| } |
| |
| HRESULT NativeTheme::PaintListBackground(HDC hdc, |
| bool enabled, |
| RECT* rect) const { |
| HANDLE handle = GetThemeHandle(LIST); |
| if (handle && draw_theme_) |
| return draw_theme_(handle, hdc, 1, TS_NORMAL, rect, NULL); |
| |
| // Draw it manually. |
| HBRUSH bg_brush = GetSysColorBrush(COLOR_WINDOW); |
| FillRect(hdc, rect, bg_brush); |
| DrawEdge(hdc, rect, EDGE_SUNKEN, BF_RECT | BF_ADJUST); |
| return S_OK; |
| } |
| |
| HRESULT NativeTheme::PaintMenuArrow(ThemeName theme, |
| HDC hdc, |
| int part_id, |
| int state_id, |
| RECT* rect, |
| MenuArrowDirection arrow_direction, |
| bool is_highlighted) const { |
| HANDLE handle = GetThemeHandle(MENU); |
| if (handle && draw_theme_) { |
| if (arrow_direction == RIGHT_POINTING_ARROW) { |
| return draw_theme_(handle, hdc, part_id, state_id, rect, NULL); |
| } else { |
| // There is no way to tell the uxtheme API to draw a left pointing arrow; |
| // it doesn't have a flag equivalent to DFCS_MENUARROWRIGHT. But they |
| // are needed for RTL locales on Vista. So use a memory DC and mirror |
| // the region with GDI's StretchBlt. |
| Rect r(*rect); |
| ScopedHDC mem_dc(CreateCompatibleDC(hdc)); |
| ScopedBitmap mem_bitmap(CreateCompatibleBitmap(hdc, r.width(), |
| r.height())); |
| HGDIOBJ old_bitmap = SelectObject(mem_dc, mem_bitmap); |
| // Copy and horizontally mirror the background from hdc into mem_dc. Use |
| // a negative-width source rect, starting at the rightmost pixel. |
| StretchBlt(mem_dc, 0, 0, r.width(), r.height(), |
| hdc, r.right()-1, r.y(), -r.width(), r.height(), SRCCOPY); |
| // Draw the arrow. |
| RECT theme_rect = {0, 0, r.width(), r.height()}; |
| HRESULT result = draw_theme_(handle, mem_dc, part_id, |
| state_id, &theme_rect, NULL); |
| // Copy and mirror the result back into mem_dc. |
| StretchBlt(hdc, r.x(), r.y(), r.width(), r.height(), |
| mem_dc, r.width()-1, 0, -r.width(), r.height(), SRCCOPY); |
| SelectObject(mem_dc, old_bitmap); |
| return result; |
| } |
| } |
| |
| // For some reason, Windows uses the name DFCS_MENUARROWRIGHT to indicate a |
| // left pointing arrow. This makes the following 'if' statement slightly |
| // counterintuitive. |
| UINT state; |
| if (arrow_direction == RIGHT_POINTING_ARROW) |
| state = DFCS_MENUARROW; |
| else |
| state = DFCS_MENUARROWRIGHT; |
| return PaintFrameControl(hdc, rect, DFC_MENU, state, is_highlighted); |
| } |
| |
| HRESULT NativeTheme::PaintMenuBackground(ThemeName theme, |
| HDC hdc, |
| int part_id, |
| int state_id, |
| RECT* rect) const { |
| HANDLE handle = GetThemeHandle(MENU); |
| if (handle && draw_theme_) { |
| HRESULT result = draw_theme_(handle, hdc, part_id, state_id, rect, NULL); |
| FrameRect(hdc, rect, GetSysColorBrush(COLOR_3DSHADOW)); |
| return result; |
| } |
| |
| FillRect(hdc, rect, GetSysColorBrush(COLOR_MENU)); |
| DrawEdge(hdc, rect, EDGE_RAISED, BF_RECT); |
| return S_OK; |
| } |
| |
| HRESULT NativeTheme::PaintMenuCheckBackground(ThemeName theme, |
| HDC hdc, |
| int part_id, |
| int state_id, |
| RECT* rect) const { |
| HANDLE handle = GetThemeHandle(MENU); |
| if (handle && draw_theme_) |
| return draw_theme_(handle, hdc, part_id, state_id, rect, NULL); |
| // Nothing to do for background. |
| return S_OK; |
| } |
| |
| HRESULT NativeTheme::PaintMenuCheck(ThemeName theme, |
| HDC hdc, |
| int part_id, |
| int state_id, |
| RECT* rect, |
| bool is_highlighted) const { |
| HANDLE handle = GetThemeHandle(MENU); |
| if (handle && draw_theme_) { |
| return draw_theme_(handle, hdc, part_id, state_id, rect, NULL); |
| } |
| return PaintFrameControl(hdc, rect, DFC_MENU, DFCS_MENUCHECK, is_highlighted); |
| } |
| |
| HRESULT NativeTheme::PaintMenuGutter(HDC hdc, |
| int part_id, |
| int state_id, |
| RECT* rect) const { |
| HANDLE handle = GetThemeHandle(MENU); |
| if (handle && draw_theme_) |
| return draw_theme_(handle, hdc, part_id, state_id, rect, NULL); |
| return E_NOTIMPL; |
| } |
| |
| HRESULT NativeTheme::PaintMenuItemBackground(ThemeName theme, |
| HDC hdc, |
| int part_id, |
| int state_id, |
| bool selected, |
| RECT* rect) const { |
| HANDLE handle = GetThemeHandle(MENU); |
| if (handle && draw_theme_) |
| return draw_theme_(handle, hdc, part_id, state_id, rect, NULL); |
| if (selected) |
| FillRect(hdc, rect, GetSysColorBrush(COLOR_HIGHLIGHT)); |
| return S_OK; |
| } |
| |
| HRESULT NativeTheme::PaintMenuList(HDC hdc, |
| int part_id, |
| int state_id, |
| int classic_state, |
| RECT* rect) const { |
| HANDLE handle = GetThemeHandle(MENULIST); |
| if (handle && draw_theme_) |
| return draw_theme_(handle, hdc, part_id, state_id, rect, NULL); |
| |
| // Draw it manually. |
| DrawFrameControl(hdc, rect, DFC_SCROLL, DFCS_SCROLLCOMBOBOX | classic_state); |
| return S_OK; |
| } |
| |
| HRESULT NativeTheme::PaintMenuSeparator(HDC hdc, |
| int part_id, |
| int state_id, |
| RECT* rect) const { |
| HANDLE handle = GetThemeHandle(MENU); |
| if (handle && draw_theme_) |
| return draw_theme_(handle, hdc, part_id, state_id, rect, NULL); |
| DrawEdge(hdc, rect, EDGE_ETCHED, BF_TOP); |
| return S_OK; |
| } |
| |
| HRESULT NativeTheme::PaintScrollbarArrow(HDC hdc, |
| int state_id, |
| int classic_state, |
| RECT* rect) const { |
| HANDLE handle = GetThemeHandle(SCROLLBAR); |
| if (handle && draw_theme_) |
| return draw_theme_(handle, hdc, SBP_ARROWBTN, state_id, rect, NULL); |
| |
| // Draw it manually. |
| DrawFrameControl(hdc, rect, DFC_SCROLL, classic_state); |
| return S_OK; |
| } |
| |
| HRESULT NativeTheme::PaintScrollbarTrack( |
| HDC hdc, |
| int part_id, |
| int state_id, |
| int classic_state, |
| RECT* target_rect, |
| RECT* align_rect, |
| skia::PlatformCanvas* canvas) const { |
| HANDLE handle = GetThemeHandle(SCROLLBAR); |
| if (handle && draw_theme_) |
| return draw_theme_(handle, hdc, part_id, state_id, target_rect, NULL); |
| |
| // Draw it manually. |
| const DWORD colorScrollbar = GetSysColor(COLOR_SCROLLBAR); |
| const DWORD color3DFace = GetSysColor(COLOR_3DFACE); |
| if ((colorScrollbar != color3DFace) && |
| (colorScrollbar != GetSysColor(COLOR_WINDOW))) { |
| FillRect(hdc, target_rect, reinterpret_cast<HBRUSH>(COLOR_SCROLLBAR + 1)); |
| } else { |
| SkPaint paint; |
| SetCheckerboardShader(&paint, *align_rect); |
| canvas->drawIRect(skia::RECTToSkIRect(*target_rect), paint); |
| } |
| if (classic_state & DFCS_PUSHED) |
| InvertRect(hdc, target_rect); |
| return S_OK; |
| } |
| |
| HRESULT NativeTheme::PaintScrollbarThumb(HDC hdc, |
| int part_id, |
| int state_id, |
| int classic_state, |
| RECT* rect) const { |
| HANDLE handle = GetThemeHandle(SCROLLBAR); |
| if (handle && draw_theme_) |
| return draw_theme_(handle, hdc, part_id, state_id, rect, NULL); |
| |
| // Draw it manually. |
| if ((part_id == SBP_THUMBBTNHORZ) || (part_id == SBP_THUMBBTNVERT)) |
| DrawEdge(hdc, rect, EDGE_RAISED, BF_RECT | BF_MIDDLE); |
| // Classic mode doesn't have a gripper. |
| return S_OK; |
| } |
| |
| HRESULT NativeTheme::PaintStatusGripper(HDC hdc, |
| int part_id, |
| int state_id, |
| int classic_state, |
| RECT* rect) const { |
| HANDLE handle = GetThemeHandle(STATUS); |
| if (handle && draw_theme_) { |
| // Paint the status bar gripper. There doesn't seem to be a |
| // standard gripper in Windows for the space between |
| // scrollbars. This is pretty close, but it's supposed to be |
| // painted over a status bar. |
| return draw_theme_(handle, hdc, SP_GRIPPER, 0, rect, NULL); |
| } |
| |
| // Draw a windows classic scrollbar gripper. |
| DrawFrameControl(hdc, rect, DFC_SCROLL, DFCS_SCROLLSIZEGRIP); |
| return S_OK; |
| } |
| |
| HRESULT NativeTheme::PaintTabPanelBackground(HDC hdc, RECT* rect) const { |
| HANDLE handle = GetThemeHandle(TAB); |
| if (handle && draw_theme_) |
| return draw_theme_(handle, hdc, TABP_BODY, 0, rect, NULL); |
| |
| // Classic just renders a flat color background. |
| FillRect(hdc, rect, reinterpret_cast<HBRUSH>(COLOR_3DFACE + 1)); |
| return S_OK; |
| } |
| |
| HRESULT NativeTheme::PaintTrackbar(HDC hdc, |
| int part_id, |
| int state_id, |
| int classic_state, |
| RECT* rect, |
| skia::PlatformCanvas* canvas) const { |
| // Make the channel be 4 px thick in the center of the supplied rect. (4 px |
| // matches what XP does in various menus; GetThemePartSize() doesn't seem to |
| // return good values here.) |
| RECT channel_rect = *rect; |
| const int channel_thickness = 4; |
| if (part_id == TKP_TRACK) { |
| channel_rect.top += |
| ((channel_rect.bottom - channel_rect.top - channel_thickness) / 2); |
| channel_rect.bottom = channel_rect.top + channel_thickness; |
| } else if (part_id == TKP_TRACKVERT) { |
| channel_rect.left += |
| ((channel_rect.right - channel_rect.left - channel_thickness) / 2); |
| channel_rect.right = channel_rect.left + channel_thickness; |
| } // else this isn't actually a channel, so |channel_rect| == |rect|. |
| |
| HANDLE handle = GetThemeHandle(TRACKBAR); |
| if (handle && draw_theme_) |
| return draw_theme_(handle, hdc, part_id, state_id, &channel_rect, NULL); |
| |
| // Classic mode, draw it manually. |
| if ((part_id == TKP_TRACK) || (part_id == TKP_TRACKVERT)) { |
| DrawEdge(hdc, &channel_rect, EDGE_SUNKEN, BF_RECT); |
| } else if (part_id == TKP_THUMBVERT) { |
| DrawEdge(hdc, rect, EDGE_RAISED, BF_RECT | BF_SOFT | BF_MIDDLE); |
| } else { |
| // Split rect into top and bottom pieces. |
| RECT top_section = *rect; |
| RECT bottom_section = *rect; |
| top_section.bottom -= ((bottom_section.right - bottom_section.left) / 2); |
| bottom_section.top = top_section.bottom; |
| DrawEdge(hdc, &top_section, EDGE_RAISED, |
| BF_LEFT | BF_TOP | BF_RIGHT | BF_SOFT | BF_MIDDLE | BF_ADJUST); |
| |
| // Split triangular piece into two diagonals. |
| RECT& left_half = bottom_section; |
| RECT right_half = bottom_section; |
| right_half.left += ((bottom_section.right - bottom_section.left) / 2); |
| left_half.right = right_half.left; |
| DrawEdge(hdc, &left_half, EDGE_RAISED, |
| BF_DIAGONAL_ENDTOPLEFT | BF_SOFT | BF_MIDDLE | BF_ADJUST); |
| DrawEdge(hdc, &right_half, EDGE_RAISED, |
| BF_DIAGONAL_ENDBOTTOMLEFT | BF_SOFT | BF_MIDDLE | BF_ADJUST); |
| |
| // If the button is pressed, draw hatching. |
| if (classic_state & DFCS_PUSHED) { |
| SkPaint paint; |
| SetCheckerboardShader(&paint, *rect); |
| |
| // Fill all three pieces with the pattern. |
| canvas->drawIRect(skia::RECTToSkIRect(top_section), paint); |
| |
| SkScalar left_triangle_top = SkIntToScalar(left_half.top); |
| SkScalar left_triangle_right = SkIntToScalar(left_half.right); |
| SkPath left_triangle; |
| left_triangle.moveTo(SkIntToScalar(left_half.left), left_triangle_top); |
| left_triangle.lineTo(left_triangle_right, left_triangle_top); |
| left_triangle.lineTo(left_triangle_right, |
| SkIntToScalar(left_half.bottom)); |
| left_triangle.close(); |
| canvas->drawPath(left_triangle, paint); |
| |
| SkScalar right_triangle_left = SkIntToScalar(right_half.left); |
| SkScalar right_triangle_top = SkIntToScalar(right_half.top); |
| SkPath right_triangle; |
| right_triangle.moveTo(right_triangle_left, right_triangle_top); |
| right_triangle.lineTo(SkIntToScalar(right_half.right), |
| right_triangle_top); |
| right_triangle.lineTo(right_triangle_left, |
| SkIntToScalar(right_half.bottom)); |
| right_triangle.close(); |
| canvas->drawPath(right_triangle, paint); |
| } |
| } |
| return S_OK; |
| } |
| |
| HRESULT NativeTheme::PaintTextField(HDC hdc, |
| int part_id, |
| int state_id, |
| int classic_state, |
| RECT* rect, |
| COLORREF color, |
| bool fill_content_area, |
| bool draw_edges) const { |
| // TODO(ojan): http://b/1210017 Figure out how to give the ability to |
| // exclude individual edges from being drawn. |
| |
| HANDLE handle = GetThemeHandle(TEXTFIELD); |
| // TODO(mpcomplete): can we detect if the color is specified by the user, |
| // and if not, just use the system color? |
| // CreateSolidBrush() accepts a RGB value but alpha must be 0. |
| HBRUSH bg_brush = CreateSolidBrush(color); |
| HRESULT hr; |
| // DrawThemeBackgroundEx was introduced in XP SP2, so that it's possible |
| // draw_theme_ex_ is NULL and draw_theme_ is non-null. |
| if (handle && (draw_theme_ex_ || (draw_theme_ && draw_edges))) { |
| if (draw_theme_ex_) { |
| static DTBGOPTS omit_border_options = { |
| sizeof(DTBGOPTS), |
| DTBG_OMITBORDER, |
| {0,0,0,0} |
| }; |
| DTBGOPTS* draw_opts = draw_edges ? NULL : &omit_border_options; |
| hr = draw_theme_ex_(handle, hdc, part_id, state_id, rect, draw_opts); |
| } else { |
| hr = draw_theme_(handle, hdc, part_id, state_id, rect, NULL); |
| } |
| |
| // TODO(maruel): Need to be fixed if get_theme_content_rect_ is NULL. |
| if (fill_content_area && get_theme_content_rect_) { |
| RECT content_rect; |
| hr = get_theme_content_rect_(handle, hdc, part_id, state_id, rect, |
| &content_rect); |
| FillRect(hdc, &content_rect, bg_brush); |
| } |
| } else { |
| // Draw it manually. |
| if (draw_edges) |
| DrawEdge(hdc, rect, EDGE_SUNKEN, BF_RECT | BF_ADJUST); |
| |
| if (fill_content_area) { |
| FillRect(hdc, rect, (classic_state & DFCS_INACTIVE) ? |
| reinterpret_cast<HBRUSH>(COLOR_BTNFACE + 1) : bg_brush); |
| } |
| hr = S_OK; |
| } |
| DeleteObject(bg_brush); |
| return hr; |
| } |
| |
| bool NativeTheme::IsThemingActive() const { |
| if (is_theme_active_) |
| return !!is_theme_active_(); |
| return false; |
| } |
| |
| HRESULT NativeTheme::GetThemePartSize(ThemeName theme_name, |
| HDC hdc, |
| int part_id, |
| int state_id, |
| RECT* rect, |
| int ts, |
| SIZE* size) const { |
| HANDLE handle = GetThemeHandle(theme_name); |
| if (handle && get_theme_part_size_) |
| return get_theme_part_size_(handle, hdc, part_id, state_id, rect, ts, size); |
| |
| return E_NOTIMPL; |
| } |
| |
| HRESULT NativeTheme::GetThemeColor(ThemeName theme, |
| int part_id, |
| int state_id, |
| int prop_id, |
| SkColor* color) const { |
| HANDLE handle = GetThemeHandle(theme); |
| if (handle && get_theme_color_) { |
| COLORREF color_ref; |
| if (get_theme_color_(handle, part_id, state_id, prop_id, &color_ref) == |
| S_OK) { |
| *color = skia::COLORREFToSkColor(color_ref); |
| return S_OK; |
| } |
| } |
| return E_NOTIMPL; |
| } |
| |
| SkColor NativeTheme::GetThemeColorWithDefault(ThemeName theme, |
| int part_id, |
| int state_id, |
| int prop_id, |
| int default_sys_color) const { |
| SkColor color; |
| if (GetThemeColor(theme, part_id, state_id, prop_id, &color) != S_OK) |
| color = skia::COLORREFToSkColor(GetSysColor(default_sys_color)); |
| return color; |
| } |
| |
| HRESULT NativeTheme::GetThemeInt(ThemeName theme, |
| int part_id, |
| int state_id, |
| int prop_id, |
| int *value) const { |
| HANDLE handle = GetThemeHandle(theme); |
| if (handle && get_theme_int_) |
| return get_theme_int_(handle, part_id, state_id, prop_id, value); |
| return E_NOTIMPL; |
| } |
| |
| Size NativeTheme::GetThemeBorderSize(ThemeName theme) const { |
| // For simplicity use the wildcard state==0, part==0, since it works |
| // for the cases we currently depend on. |
| int border; |
| if (GetThemeInt(theme, 0, 0, TMT_BORDERSIZE, &border) == S_OK) |
| return Size(border, border); |
| else |
| return Size(GetSystemMetrics(SM_CXEDGE), GetSystemMetrics(SM_CYEDGE)); |
| } |
| |
| |
| void NativeTheme::DisableTheming() const { |
| if (!set_theme_properties_) |
| return; |
| set_theme_properties_(0); |
| } |
| |
| HRESULT NativeTheme::PaintFrameControl(HDC hdc, |
| RECT* rect, |
| UINT type, |
| UINT state, |
| bool is_highlighted) const { |
| const int width = rect->right - rect->left; |
| const int height = rect->bottom - rect->top; |
| |
| // DrawFrameControl for menu arrow/check wants a monochrome bitmap. |
| ScopedBitmap mask_bitmap(CreateBitmap(width, height, 1, 1, NULL)); |
| |
| if (mask_bitmap == NULL) |
| return E_OUTOFMEMORY; |
| |
| ScopedHDC bitmap_dc(CreateCompatibleDC(NULL)); |
| HGDIOBJ org_bitmap = SelectObject(bitmap_dc, mask_bitmap); |
| RECT local_rect = { 0, 0, width, height }; |
| DrawFrameControl(bitmap_dc, &local_rect, type, state); |
| |
| // We're going to use BitBlt with a b&w mask. This results in using the dest |
| // dc's text color for the black bits in the mask, and the dest dc's |
| // background color for the white bits in the mask. DrawFrameControl draws the |
| // check in black, and the background in white. |
| COLORREF old_bg_color = |
| SetBkColor(hdc, |
| GetSysColor(is_highlighted ? COLOR_HIGHLIGHT : COLOR_MENU)); |
| COLORREF old_text_color = |
| SetTextColor(hdc, |
| GetSysColor(is_highlighted ? COLOR_HIGHLIGHTTEXT : |
| COLOR_MENUTEXT)); |
| BitBlt(hdc, rect->left, rect->top, width, height, bitmap_dc, 0, 0, SRCCOPY); |
| SetBkColor(hdc, old_bg_color); |
| SetTextColor(hdc, old_text_color); |
| |
| SelectObject(bitmap_dc, org_bitmap); |
| |
| return S_OK; |
| } |
| |
| void NativeTheme::CloseHandles() const |
| { |
| if (!close_theme_) |
| return; |
| |
| for (int i = 0; i < LAST; ++i) { |
| if (theme_handles_[i]) |
| close_theme_(theme_handles_[i]); |
| theme_handles_[i] = NULL; |
| } |
| } |
| |
| HANDLE NativeTheme::GetThemeHandle(ThemeName theme_name) const |
| { |
| if (!open_theme_ || theme_name < 0 || theme_name >= LAST) |
| return 0; |
| |
| if (theme_handles_[theme_name]) |
| return theme_handles_[theme_name]; |
| |
| // Not found, try to load it. |
| HANDLE handle = 0; |
| switch (theme_name) { |
| case BUTTON: |
| handle = open_theme_(NULL, L"Button"); |
| break; |
| case LIST: |
| handle = open_theme_(NULL, L"Listview"); |
| break; |
| case MENU: |
| handle = open_theme_(NULL, L"Menu"); |
| break; |
| case MENULIST: |
| handle = open_theme_(NULL, L"Combobox"); |
| break; |
| case SCROLLBAR: |
| handle = open_theme_(NULL, L"Scrollbar"); |
| break; |
| case STATUS: |
| handle = open_theme_(NULL, L"Status"); |
| break; |
| case TAB: |
| handle = open_theme_(NULL, L"Tab"); |
| break; |
| case TEXTFIELD: |
| handle = open_theme_(NULL, L"Edit"); |
| break; |
| case TRACKBAR: |
| handle = open_theme_(NULL, L"Trackbar"); |
| break; |
| case WINDOW: |
| handle = open_theme_(NULL, L"Window"); |
| break; |
| default: |
| NOTREACHED(); |
| } |
| theme_handles_[theme_name] = handle; |
| return handle; |
| } |
| |
| } // namespace gfx |
