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Diffstat (limited to 'src/ui/controls/text_control.cpp')
-rw-r--r--src/ui/controls/text_control.cpp208
1 files changed, 102 insertions, 106 deletions
diff --git a/src/ui/controls/text_control.cpp b/src/ui/controls/text_control.cpp
index d7d6b810..71a167e2 100644
--- a/src/ui/controls/text_control.cpp
+++ b/src/ui/controls/text_control.cpp
@@ -9,6 +9,40 @@
namespace cru::ui::controls
{
+ namespace
+ {
+ unsigned TextLayoutHitTest(IDWriteTextLayout* text_layout, const Point& point)
+ {
+ BOOL is_trailing, is_inside;
+ DWRITE_HIT_TEST_METRICS metrics{};
+ text_layout->HitTestPoint(point.x, point.y, &is_trailing, &is_inside, &metrics);
+ return is_trailing == 0 ? metrics.textPosition : metrics.textPosition + 1;
+ }
+
+ void DrawSelectionRect(ID2D1DeviceContext* device_context, IDWriteTextLayout* layout, ID2D1Brush* brush, const std::optional<TextRange> range)
+ {
+ if (range.has_value())
+ {
+ DWRITE_TEXT_METRICS text_metrics{};
+ ThrowIfFailed(layout->GetMetrics(&text_metrics));
+ const auto metrics_count = text_metrics.lineCount * text_metrics.maxBidiReorderingDepth;
+
+ std::vector<DWRITE_HIT_TEST_METRICS> hit_test_metrics(metrics_count);
+ UINT32 actual_count;
+ layout->HitTestTextRange(
+ range.value().position, range.value().count,
+ 0, 0,
+ hit_test_metrics.data(), metrics_count, &actual_count
+ );
+
+ hit_test_metrics.erase(hit_test_metrics.cbegin() + actual_count, hit_test_metrics.cend());
+
+ for (const auto& metrics : hit_test_metrics)
+ device_context->FillRoundedRectangle(D2D1::RoundedRect(D2D1::RectF(metrics.left, metrics.top, metrics.left + metrics.width, metrics.top + metrics.height), 3, 3), brush);
+ }
+ }
+ }
+
TextControl::TextControl(const Microsoft::WRL::ComPtr<IDWriteTextFormat>& init_text_format,
const Microsoft::WRL::ComPtr<ID2D1Brush>& init_brush) : Control(false)
{
@@ -21,6 +55,74 @@ namespace cru::ui::controls
selection_brush_ = UiManager::GetInstance()->GetPredefineResources()->text_control_selection_brush;
SetClipContent(true);
+
+ size_changed_event.AddHandler([this](events::SizeChangedEventArgs& args)
+ {
+ const auto content = GetRect(RectRange::Content);
+ ThrowIfFailed(text_layout_->SetMaxWidth(content.width));
+ ThrowIfFailed(text_layout_->SetMaxHeight(content.height));
+ InvalidateDraw();
+ });
+
+ draw_content_event.AddHandler([this](events::DrawEventArgs& args)
+ {
+ const auto device_context = args.GetDeviceContext();
+ DrawSelectionRect(device_context, text_layout_.Get(), selection_brush_.Get(), selected_range_);
+ device_context->DrawTextLayout(D2D1::Point2F(), text_layout_.Get(), brush_.Get());
+ });
+
+ mouse_down_event.bubble.AddHandler([this](events::MouseButtonEventArgs& args)
+ {
+ if (is_selectable_ && args.GetMouseButton() == MouseButton::Left && GetRect(RectRange::Padding).IsPointInside(args.GetPoint(this, RectRange::Margin)))
+ {
+ selected_range_ = std::nullopt;
+ const auto hit_test_result = TextLayoutHitTest(text_layout_.Get(), args.GetPoint(this));
+ RequestChangeCaretPosition(hit_test_result);
+ mouse_down_position_ = hit_test_result;
+ is_selecting_ = true;
+ GetWindow()->CaptureMouseFor(this);
+ InvalidateDraw();
+ }
+ });
+
+ mouse_move_event.bubble.AddHandler([this](events::MouseEventArgs& args)
+ {
+ if (is_selecting_)
+ {
+ const auto hit_test_result = TextLayoutHitTest(text_layout_.Get(), args.GetPoint(this));
+ RequestChangeCaretPosition(hit_test_result);
+ selected_range_ = TextRange::FromTwoSides(hit_test_result, mouse_down_position_);
+ InvalidateDraw();
+ }
+ UpdateCursor(args.GetPoint(this, RectRange::Margin));
+ });
+
+
+ mouse_up_event.bubble.AddHandler([this](events::MouseButtonEventArgs& args)
+ {
+ if (args.GetMouseButton() == MouseButton::Left)
+ {
+ if (is_selecting_)
+ {
+ is_selecting_ = false;
+ GetWindow()->ReleaseCurrentMouseCapture();
+ }
+ }
+ });
+
+ lose_focus_event.bubble.AddHandler([this](events::FocusChangeEventArgs& args)
+ {
+ if (is_selecting_)
+ {
+ is_selecting_ = false;
+ GetWindow()->ReleaseCurrentMouseCapture();
+ }
+ if (!args.IsWindow()) // If the focus lose is triggered window-wide, then save the selection state. Otherwise, clear selection.
+ {
+ selected_range_ = std::nullopt;
+ InvalidateDraw();
+ }
+ });
}
@@ -75,112 +177,6 @@ namespace cru::ui::controls
}
}
- void TextControl::OnSizeChangedCore(events::SizeChangedEventArgs& args)
- {
- Control::OnSizeChangedCore(args);
- const auto content = GetRect(RectRange::Content);
- ThrowIfFailed(text_layout_->SetMaxWidth(content.width));
- ThrowIfFailed(text_layout_->SetMaxHeight(content.height));
- InvalidateDraw();
- }
-
- namespace
- {
- unsigned TextLayoutHitTest(IDWriteTextLayout* text_layout, const Point& point)
- {
- BOOL is_trailing, is_inside;
- DWRITE_HIT_TEST_METRICS metrics{};
- text_layout->HitTestPoint(point.x, point.y, &is_trailing, &is_inside, &metrics);
- return is_trailing == 0 ? metrics.textPosition : metrics.textPosition + 1;
- }
-
- void DrawSelectionRect(ID2D1DeviceContext* device_context, IDWriteTextLayout* layout, ID2D1Brush* brush, const std::optional<TextRange> range)
- {
- if (range.has_value())
- {
- DWRITE_TEXT_METRICS text_metrics{};
- ThrowIfFailed(layout->GetMetrics(&text_metrics));
- const auto metrics_count = text_metrics.lineCount * text_metrics.maxBidiReorderingDepth;
-
- std::vector<DWRITE_HIT_TEST_METRICS> hit_test_metrics(metrics_count);
- UINT32 actual_count;
- layout->HitTestTextRange(
- range.value().position, range.value().count,
- 0, 0,
- hit_test_metrics.data(), metrics_count, &actual_count
- );
-
- hit_test_metrics.erase(hit_test_metrics.cbegin() + actual_count, hit_test_metrics.cend());
-
- for (const auto& metrics : hit_test_metrics)
- device_context->FillRoundedRectangle(D2D1::RoundedRect(D2D1::RectF(metrics.left, metrics.top, metrics.left + metrics.width, metrics.top + metrics.height), 3, 3), brush);
- }
- }
- }
- void TextControl::OnDrawContent(ID2D1DeviceContext* device_context)
- {
- Control::OnDrawContent(device_context);
- DrawSelectionRect(device_context, text_layout_.Get(), selection_brush_.Get(), selected_range_);
- device_context->DrawTextLayout(D2D1::Point2F(), text_layout_.Get(), brush_.Get());
- }
-
- void TextControl::OnMouseDownCore(events::MouseButtonEventArgs& args)
- {
- Control::OnMouseDownCore(args);
- if (is_selectable_ && args.GetMouseButton() == MouseButton::Left && GetRect(RectRange::Padding).IsPointInside(args.GetPoint(this, RectRange::Margin)))
- {
- selected_range_ = std::nullopt;
- const auto hit_test_result = TextLayoutHitTest(text_layout_.Get(), args.GetPoint(this));
- RequestChangeCaretPosition(hit_test_result);
- mouse_down_position_ = hit_test_result;
- is_selecting_ = true;
- GetWindow()->CaptureMouseFor(this);
- InvalidateDraw();
- }
- }
-
- void TextControl::OnMouseMoveCore(events::MouseEventArgs& args)
- {
- Control::OnMouseMoveCore(args);
- if (is_selecting_)
- {
- const auto hit_test_result = TextLayoutHitTest(text_layout_.Get(), args.GetPoint(this));
- RequestChangeCaretPosition(hit_test_result);
- selected_range_ = TextRange::FromTwoSides(hit_test_result, mouse_down_position_);
- InvalidateDraw();
- }
- UpdateCursor(args.GetPoint(this, RectRange::Margin));
- }
-
- void TextControl::OnMouseUpCore(events::MouseButtonEventArgs& args)
- {
- Control::OnMouseUpCore(args);
- if (args.GetMouseButton() == MouseButton::Left)
- {
- if (is_selecting_)
- {
- is_selecting_ = false;
- GetWindow()->ReleaseCurrentMouseCapture();
- }
- }
- }
-
- void TextControl::OnLoseFocusCore(events::FocusChangeEventArgs& args)
- {
- Control::OnLoseFocusCore(args);
- if (is_selecting_)
- {
- is_selecting_ = false;
- GetWindow()->ReleaseCurrentMouseCapture();
- }
- if (!args.IsWindow()) // If the focus lose is triggered window-wide, then save the selection state. Otherwise, clear selection.
- {
- selected_range_ = std::nullopt;
- InvalidateDraw();
- }
- }
-
-
Size TextControl::OnMeasureContent(const Size& available_size)
{
ThrowIfFailed(text_layout_->SetMaxWidth(available_size.width));
generated by cgit v1.2.3 (git 2.46.0) at 2025-09-28 19:20:22 +0000