diff options
Diffstat (limited to 'CruUI/ui/controls/text_box.cpp')
| -rw-r--r-- | CruUI/ui/controls/text_box.cpp | 244 |
1 files changed, 0 insertions, 244 deletions
diff --git a/CruUI/ui/controls/text_box.cpp b/CruUI/ui/controls/text_box.cpp deleted file mode 100644 index a8d78398..00000000 --- a/CruUI/ui/controls/text_box.cpp +++ /dev/null @@ -1,244 +0,0 @@ -#include "text_box.h" - -#include <cwctype> - -#include "graph/graph.h" -#include "exception.h" - -namespace cru::ui::controls -{ - using graph::CreateSolidBrush; - - inline Microsoft::WRL::ComPtr<IDWriteFactory> GetDWriteFactory() - { - return graph::GraphManager::GetInstance()->GetDWriteFactory(); - } - - TextBox::TextBox(const Microsoft::WRL::ComPtr<IDWriteTextFormat>& init_text_format, - const Microsoft::WRL::ComPtr<ID2D1Brush>& init_brush) : Control(false) - { - text_format_ = init_text_format == nullptr ? graph::CreateDefaultTextFormat() : init_text_format; - - RecreateTextLayout(); - - brush_ = init_brush == nullptr ? CreateSolidBrush(D2D1::ColorF(D2D1::ColorF::Black)) : init_brush; - - caret_brush_ = CreateSolidBrush(D2D1::ColorF(D2D1::ColorF::Black)); - - caret_action_ = CreateActionPtr([this] - { - is_caret_show_ = !is_caret_show_; - Repaint(); - }); - - //selection_brush_ = CreateSolidBrush(D2D1::ColorF(D2D1::ColorF::LightSkyBlue)); - } - - TextBox::~TextBox() = default; - - void TextBox::SetText(const String& text) - { - if (text_ != text) - { - const auto old_text = text_; - text_ = text; - OnTextChangedCore(old_text, text); - } - } - - void TextBox::SetBrush(const Microsoft::WRL::ComPtr<ID2D1Brush>& brush) - { - brush_ = brush; - Repaint(); - } - - void TextBox::SetTextFormat(const Microsoft::WRL::ComPtr<IDWriteTextFormat>& text_format) - { - text_format_ = text_format; - RecreateTextLayout(); - Repaint(); - } - - void TextBox::OnSizeChangedCore(events::SizeChangedEventArgs& args) - { - Control::OnSizeChangedCore(args); - text_layout_->SetMaxWidth(args.GetNewSize().width); - text_layout_->SetMaxHeight(args.GetNewSize().height); - Repaint(); - } - - void TextBox::OnDraw(ID2D1DeviceContext* device_context) - { - Control::OnDraw(device_context); - if (text_layout_ != nullptr) - { - device_context->DrawTextLayout(D2D1::Point2F(), text_layout_.Get(), brush_.Get()); - if (is_caret_show_) - { - const auto caret_half_width = Application::GetInstance()->GetCaretInfo().half_caret_width; - FLOAT x, y; - DWRITE_HIT_TEST_METRICS metrics{}; - ThrowIfFailed(text_layout_->HitTestTextPosition(position_, FALSE, &x, &y, &metrics)); - device_context->FillRectangle(D2D1::RectF(metrics.left - caret_half_width, metrics.top, metrics.left + caret_half_width, metrics.top + metrics.height), caret_brush_.Get()); - } - } - } - - namespace - { - std::optional<unsigned> TextLayoutHitTest(IDWriteTextLayout* text_layout, const Point& point, bool test_inside = true) - { - BOOL is_trailing, is_inside; - DWRITE_HIT_TEST_METRICS metrics{}; - text_layout->HitTestPoint(point.x, point.y, &is_trailing, &is_inside, &metrics); - if (!test_inside || is_inside) - return is_trailing == 0 ? metrics.textPosition : metrics.textPosition + 1; - else - return std::nullopt; - } - } - - void TextBox::OnMouseDownCore(events::MouseButtonEventArgs& args) - { - Control::OnMouseDownCore(args); - if (args.GetMouseButton() == MouseButton::Left) - { - position_ = TextLayoutHitTest(text_layout_.Get(), args.GetPoint(this), false).value(); - - Repaint(); - } - } - - void TextBox::OnGetFocusCore(events::FocusChangeEventArgs& args) - { - Control::OnGetFocusCore(args); - assert(caret_timer_ == nullptr); - is_caret_show_ = true; - caret_timer_ = SetInterval(Application::GetInstance()->GetCaretInfo().caret_blink_duration, caret_action_); - } - - void TextBox::OnLoseFocusCore(events::FocusChangeEventArgs& args) - { - Control::OnLoseFocusCore(args); - assert(caret_timer_ != nullptr); - caret_timer_->Cancel(); - is_caret_show_ = false; - } - - void TextBox::OnKeyDownCore(events::KeyEventArgs& args) - { - Control::OnKeyDownCore(args); - if (args.GetVirtualCode() == VK_LEFT && position_ > 0) - { - position_--; - Repaint(); - } - - if (args.GetVirtualCode() == VK_RIGHT && position_ < GetText().size()) - { - position_++; - Repaint(); - } - } - - void TextBox::OnCharCore(events::CharEventArgs& args) - { - Control::OnCharCore(args); - if (args.GetChar() == L'\b') - { - auto text = GetText(); - if (!text.empty() && position_ > 0) - { - const auto position = --position_; - text.erase(position); - SetText(text); - } - return; - } - - if (std::iswprint(args.GetChar())) - { - const auto position = position_++; - auto text = GetText(); - text.insert(text.cbegin() + position, { args.GetChar() }); - SetText(text); - } - } - - Size TextBox::OnMeasure(const Size& available_size) - { - const auto layout_params = GetLayoutParams(); - - if (layout_params->width.mode == MeasureMode::Stretch && layout_params->height.mode == MeasureMode::Stretch) - return available_size; - - auto&& get_measure_length = [](const LayoutSideParams& layout_length, const float available_length) -> float - { - switch (layout_length.mode) - { - case MeasureMode::Exactly: - { - return std::min(layout_length.length, available_length); - } - case MeasureMode::Stretch: - case MeasureMode::Content: - { - return available_length; - } - default: - UnreachableCode(); - } - }; - - const Size measure_size(get_measure_length(layout_params->width, available_size.width), - get_measure_length(layout_params->height, available_size.height)); - - ThrowIfFailed(text_layout_->SetMaxWidth(measure_size.width)); - ThrowIfFailed(text_layout_->SetMaxHeight(measure_size.height)); - - DWRITE_TEXT_METRICS metrics{}; - - ThrowIfFailed(text_layout_->GetMetrics(&metrics)); - - const Size measure_result(metrics.width, metrics.height); - - auto&& calculate_final_length = [](const LayoutSideParams& layout_length, const float measure_length, const float measure_result_length) -> float - { - if ((layout_length.mode == MeasureMode::Stretch || - layout_length.mode == MeasureMode::Exactly) - && measure_result_length < measure_length) - return measure_length; - else - return measure_result_length; - }; - - const Size result_size( - calculate_final_length(layout_params->width, measure_size.width, measure_result.width), - calculate_final_length(layout_params->height, measure_size.height, measure_result.height) - ); - - return result_size; - } - - void TextBox::OnTextChangedCore(const String& old_text, const String& new_text) - { - RecreateTextLayout(); - Repaint(); - } - - void TextBox::RecreateTextLayout() - { - assert(text_format_ != nullptr); - - const auto dwrite_factory = GetDWriteFactory(); - - const auto&& size = GetSize(); - - ThrowIfFailed(dwrite_factory->CreateTextLayout( - text_.c_str(), static_cast<UINT32>(text_.size()), - text_format_.Get(), - size.width, size.height, - &text_layout_ - )); - } -} |