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[ui] add horizontal privacy screen branding with bottom alignment

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dijunkun
2026-10-28 10:34:04 +08:00
parent 37cc6954a2
commit e922bdc864
2 changed files with 67 additions and 30 deletions
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apps/desktop/src/platform/windows/privacy/band_module/privacy_cover_renderer.cpp
+39 -23
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@@ -13,13 +13,15 @@ namespace crossdesk {
namespace {
constexpr size_t kInstructionLines = 2;
constexpr size_t kBrandLine = kInstructionLines;
constexpr size_t kBrandSegments = 2;
constexpr size_t kCrossLine = kInstructionLines;
constexpr size_t kDeskLine = kCrossLine + 1;
struct PaintResources {
HDC dc;
int saved;
HICON logo = nullptr;
std::array<HFONT, kInstructionLines + 1> fonts{};
std::array<HFONT, kInstructionLines + kBrandSegments> fonts{};
~PaintResources() {
// Deselect every owned GDI object before releasing it.
if (saved) RestoreDC(dc, saved);
@@ -45,7 +47,7 @@ bool DrawPrivacyCover(HDC dc, const RECT& rect, UINT dpi, HINSTANCE module,
if (width <= 0 || height <= 0) return false;
// Scale with the monitor DPI, shrinking the whole group on small displays.
// All coordinates remain in the owning window's physical-pixel context.
const double scale = (std::min)({dpi / 96.0, width / 640.0, height / 200.0});
const double scale = (std::min)({dpi / 96.0, width / 768.0, height / 200.0});
const auto px = [scale](int value) {
return (std::max)(1, static_cast<int>(value * scale + 0.5));
};
@@ -61,55 +63,69 @@ bool DrawPrivacyCover(HDC dc, const RECT& rect, UINT dpi, HINSTANCE module,
COLORREF color;
RECT bounds{};
};
std::array<Line, kInstructionLines + 1> lines{{
std::array<Line, kInstructionLines + kBrandSegments> lines{{
{unlock_hint, 16, FW_NORMAL, RGB(181, 190, 204)},
{L"Ctrl + Alt + Shift + F12", 24, FW_SEMIBOLD, RGB(245, 247, 250)},
{L"CrossDesk", 14, FW_SEMIBOLD, RGB(245, 247, 250)},
{L"Cross", 29, FW_BOLD, RGB(69, 135, 219)},
{L"Desk", 29, FW_BOLD, RGB(37, 83, 151)},
}};
constexpr UINT flags = DT_LEFT | DT_WORDBREAK | DT_NOPREFIX;
constexpr UINT brand_flags = DT_LEFT | DT_SINGLELINE | DT_NOPREFIX;
for (size_t i = 0; i < lines.size(); ++i) {
if (i < kInstructionLines && !allow_local_unlock) continue;
auto& line = lines[i];
const bool is_brand = i >= kInstructionLines;
resources.fonts[i] =
CreateFontW(-px(line.size), 0, 0, 0, line.weight, FALSE, FALSE, FALSE,
DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,
ANTIALIASED_QUALITY, DEFAULT_PITCH, L"Microsoft YaHei UI");
ANTIALIASED_QUALITY, DEFAULT_PITCH,
is_brand ? L"Arial" : L"Microsoft YaHei UI");
if (!resources.fonts[i] || !Select(dc, resources.fonts[i])) return false;
line.bounds = {0, 0, text_width, 0};
if (!DrawTextW(dc, line.text, -1, &line.bounds, flags | DT_CALCRECT) ||
if (!DrawTextW(dc, line.text, -1, &line.bounds,
(is_brand ? brand_flags : flags) | DT_CALCRECT) ||
line.bounds.right > text_width)
return false;
}
const int content_height =
static_cast<int>(lines[0].bounds.bottom + lines[1].bounds.bottom) +
(allow_local_unlock ? px(12) : 0);
// Match the icon width to the name; each side keeps its own height.
const int brand_gap = px(6);
const int brand_width = static_cast<int>(lines[kBrandLine].bounds.right);
const int logo_size = brand_width;
const int brand_height =
logo_size + brand_gap + static_cast<int>(lines[kBrandLine].bounds.bottom);
// Match the horizontal, two-tone wordmark in docs/images/crossdesk-banner.svg.
const int logo_size = px(48);
const int brand_gap = px(8);
const int segment_gap = px(1);
const int brand_width = logo_size + brand_gap + segment_gap +
static_cast<int>(lines[kCrossLine].bounds.right + lines[kDeskLine].bounds.right);
const int brand_height = (std::max)({logo_size,
static_cast<int>(lines[kCrossLine].bounds.bottom),
static_cast<int>(lines[kDeskLine].bounds.bottom)});
if (logo_size <= 0 ||
(std::max)(brand_height, content_height) + 2 * margin > height ||
brand_width + px(24) + text_width + 2 * margin > width)
brand_width + (allow_local_unlock ? px(24) + text_width : 0) + 2 * margin > width)
return false;
resources.logo = static_cast<HICON>(LoadImageW(
module, L"IDI_CROSSDESK_LOGO", IMAGE_ICON, logo_size, logo_size, 0));
if (!resources.logo) return false;
const int brand_left = rect.left + margin;
const int left = brand_left + brand_width + px(24);
const int brand_top = rect.bottom - margin - brand_height;
const int brand_bottom = rect.bottom - margin;
int top = rect.bottom - margin - content_height;
if (!DrawIconEx(dc, brand_left, brand_top, resources.logo, logo_size,
if (!DrawIconEx(dc, brand_left, brand_bottom - logo_size,
resources.logo, logo_size,
logo_size, 0, nullptr, DI_NORMAL))
return false;
if (!Select(dc, resources.fonts[kBrandLine])) return false;
RECT brand_bounds{brand_left, brand_top + logo_size + brand_gap,
brand_left + brand_width, rect.bottom - margin};
SetTextColor(dc, lines[kBrandLine].color);
if (!DrawTextW(dc, lines[kBrandLine].text, -1, &brand_bounds,
DT_CENTER | DT_SINGLELINE | DT_NOPREFIX))
return false;
int brand_text_left = brand_left + logo_size + brand_gap;
for (size_t i = kCrossLine; i <= kDeskLine; ++i) {
const auto& line = lines[i];
if (!Select(dc, resources.fonts[i])) return false;
const int brand_text_top = brand_bottom - line.bounds.bottom;
RECT bounds{brand_text_left, brand_text_top,
brand_text_left + line.bounds.right,
brand_text_top + line.bounds.bottom};
SetTextColor(dc, line.color);
if (!DrawTextW(dc, line.text, -1, &bounds, brand_flags)) return false;
brand_text_left += line.bounds.right + segment_gap;
}
if (!allow_local_unlock) return true;
for (size_t i = 0; i < kInstructionLines; ++i) {
const auto& line = lines[i];