450 lines
7.6 KiB
C++
450 lines
7.6 KiB
C++
#include "..\e2dnode.h"
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#include "..\e2dmodule.h"
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//-------------------------------------------------------
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// Style
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//-------------------------------------------------------
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e2d::Text::Style::Style()
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: color(Color::White)
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, alignment(Align::Left)
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, wrap(false)
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, wrap_width(0.f)
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, line_spacing(0.f)
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, underline(false)
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, strikethrough(false)
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, outline(true)
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, outline_color(Color(Color::Black, 0.5))
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, outline_width(1.f)
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, outline_stroke(Stroke::Round)
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{}
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e2d::Text::Style::Style(
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Color color,
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Align alignment,
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bool wrap,
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float wrap_width,
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float line_spacing,
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bool underline,
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bool strikethrough,
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bool outline,
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Color outline_color,
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float outline_width,
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Stroke outline_stroke
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)
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: color(color)
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, alignment(alignment)
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, wrap(wrap)
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, wrap_width(wrap_width)
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, line_spacing(line_spacing)
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, underline(underline)
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, strikethrough(strikethrough)
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, outline(outline)
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, outline_color(outline_color)
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, outline_width(outline_width)
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, outline_stroke(outline_stroke)
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{}
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//-------------------------------------------------------
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// Text
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//-------------------------------------------------------
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e2d::Text::Text()
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: font_()
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, style_()
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, text_layout_(nullptr)
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, text_format_(nullptr)
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{
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}
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e2d::Text::Text(const String & text, const Font & font, const Style & style)
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: font_(font)
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, style_(style)
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, text_layout_(nullptr)
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, text_format_(nullptr)
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, text_(text)
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{
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Reset();
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}
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e2d::Text::~Text()
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{
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SafeRelease(text_format_);
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SafeRelease(text_layout_);
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}
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const e2d::String& e2d::Text::GetText() const
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{
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return text_;
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}
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const e2d::Font& e2d::Text::GetFont() const
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{
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return font_;
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}
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const e2d::Text::Style& e2d::Text::GetStyle() const
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{
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return style_;
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}
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const e2d::String& e2d::Text::GetFontFamily() const
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{
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return font_.family;
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}
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float e2d::Text::GetFontSize() const
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{
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return font_.size;
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}
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UINT e2d::Text::GetFontWeight() const
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{
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return font_.weight;
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}
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const e2d::Color& e2d::Text::GetColor() const
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{
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return style_.color;
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}
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const e2d::Color& e2d::Text::GetOutlineColor() const
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{
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return style_.outline_color;
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}
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float e2d::Text::GetOutlineWidth() const
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{
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return style_.outline_width;
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}
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e2d::Stroke e2d::Text::GetOutlineStroke() const
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{
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return style_.outline_stroke;
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}
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int e2d::Text::GetLineCount() const
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{
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if (text_layout_)
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{
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DWRITE_TEXT_METRICS metrics;
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text_layout_->GetMetrics(&metrics);
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return static_cast<int>(metrics.lineCount);
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}
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else
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{
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return 0;
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}
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}
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bool e2d::Text::IsItalic() const
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{
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return font_.italic;
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}
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bool e2d::Text::strikethrough() const
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{
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return style_.strikethrough;
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}
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bool e2d::Text::underline() const
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{
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return style_.underline;
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}
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bool e2d::Text::outline() const
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{
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return style_.outline;
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}
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void e2d::Text::SetText(const String& text)
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{
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text_ = text;
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Reset();
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}
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void e2d::Text::SetStyle(const Style& style)
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{
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style_ = style;
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Reset();
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}
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void e2d::Text::SetFont(const Font & font)
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{
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font_ = font;
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Reset();
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}
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void e2d::Text::SetFontFamily(const String& family)
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{
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font_.family = family;
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Reset();
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}
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void e2d::Text::SetFontSize(float size)
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{
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font_.size = size;
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Reset();
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}
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void e2d::Text::SetFontWeight(UINT weight)
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{
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font_.weight = weight;
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Reset();
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}
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void e2d::Text::SetColor(Color color)
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{
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style_.color = color;
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}
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void e2d::Text::SetItalic(bool value)
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{
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font_.italic = value;
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Reset();
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}
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void e2d::Text::SetWrapEnabled(bool wrap)
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{
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if (style_.wrap != wrap)
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{
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style_.wrap = wrap;
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Reset();
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}
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}
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void e2d::Text::SetWrapWidth(float wrap_width)
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{
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if (style_.wrap_width != wrap_width)
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{
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style_.wrap_width = std::max(wrap_width, 0.f);
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if (style_.wrap)
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{
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Reset();
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}
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}
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}
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void e2d::Text::SetLineSpacing(float line_spacing)
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{
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if (style_.line_spacing != line_spacing)
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{
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style_.line_spacing = line_spacing;
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Reset();
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}
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}
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void e2d::Text::SetAlignment(Align align)
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{
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if (style_.alignment != align)
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{
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style_.alignment = align;
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Reset();
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}
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}
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void e2d::Text::SetUnderline(bool underline)
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{
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if (style_.underline != underline)
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{
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style_.underline = underline;
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if (!text_format_)
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CreateFormat();
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CreateLayout();
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}
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}
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void e2d::Text::SetStrikethrough(bool strikethrough)
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{
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if (style_.strikethrough != strikethrough)
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{
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style_.strikethrough = strikethrough;
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if (!text_format_)
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CreateFormat();
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CreateLayout();
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}
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}
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void e2d::Text::SetOutline(bool outline)
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{
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style_.outline = outline;
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}
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void e2d::Text::SetOutlineColor(Color outline_color)
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{
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style_.outline_color = outline_color;
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}
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void e2d::Text::SetOutlineWidth(float outline_width)
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{
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style_.outline_width = outline_width;
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}
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void e2d::Text::SetOutlineStroke(Stroke outline_stroke)
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{
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style_.outline_stroke = outline_stroke;
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}
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void e2d::Text::Draw() const
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{
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if (text_layout_)
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{
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auto renderer = Renderer::GetInstance();
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// <20><><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><C4B1><EFBFBD><EFBFBD><EFBFBD>
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D2D1_RECT_F textLayoutRect = D2D1::RectF(0, 0, size_.width, size_.height);
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// <20><><EFBFBD>û<EFBFBD>ˢ<EFBFBD><CBA2>ɫ<EFBFBD><C9AB><EFBFBD><CDB8><EFBFBD><EFBFBD>
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renderer->GetSolidBrush()->SetOpacity(display_opacity_);
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// <20><>ȡ<EFBFBD>ı<EFBFBD><C4B1><EFBFBD>Ⱦ<EFBFBD><C8BE>
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auto textRenderer = renderer->GetTextRenderer();
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textRenderer->SetTextStyle(
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(D2D1_COLOR_F)style_.color,
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style_.outline,
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(D2D1_COLOR_F)style_.outline_color,
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style_.outline_width,
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D2D1_LINE_JOIN(style_.outline_stroke)
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);
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text_layout_->Draw(nullptr, textRenderer, 0, 0);
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}
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}
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void e2d::Text::Reset()
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{
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>ʽ<EFBFBD><CABD>
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CreateFormat();
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֲ<EFBFBD><D6B2><EFBFBD>
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CreateLayout();
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}
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void e2d::Text::CreateFormat()
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{
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SafeRelease(text_format_);
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ThrowIfFailed(
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Renderer::GetWriteFactory()->CreateTextFormat(
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(const wchar_t *)font_.family,
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nullptr,
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DWRITE_FONT_WEIGHT(font_.weight),
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font_.italic ? DWRITE_FONT_STYLE_ITALIC : DWRITE_FONT_STYLE_NORMAL,
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DWRITE_FONT_STRETCH_NORMAL,
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font_.size,
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L"",
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&text_format_
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)
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);
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD><D6B6>뷽ʽ
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text_format_->SetTextAlignment(DWRITE_TEXT_ALIGNMENT(style_.alignment));
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// <20><><EFBFBD><EFBFBD><EFBFBD>м<EFBFBD><D0BC><EFBFBD>
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if (style_.line_spacing == 0.f)
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{
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text_format_->SetLineSpacing(DWRITE_LINE_SPACING_METHOD_DEFAULT, 0, 0);
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}
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else
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{
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text_format_->SetLineSpacing(
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DWRITE_LINE_SPACING_METHOD_UNIFORM,
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style_.line_spacing,
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style_.line_spacing * 0.8f
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);
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}
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// <20><><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><C4B1>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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if (style_.wrap)
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{
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text_format_->SetWordWrapping(DWRITE_WORD_WRAPPING_WRAP);
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}
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else
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{
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text_format_->SetWordWrapping(DWRITE_WORD_WRAPPING_NO_WRAP);
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}
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}
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void e2d::Text::CreateLayout()
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{
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SafeRelease(text_layout_);
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// <20>ı<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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if (text_.IsEmpty())
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{
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this->SetSize(0, 0);
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return;
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}
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if (text_format_ == nullptr)
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{
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WARN("Text::CreateLayout failed! text_format_ NULL pointer exception.");
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return;
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}
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UINT32 length = (UINT32)text_.GetLength();
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auto writeFactory = Renderer::GetWriteFactory();
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// <20><><EFBFBD>ı<EFBFBD><C4B1>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>½<EFBFBD><C2BD>д<EFBFBD><D0B4><EFBFBD>
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if (style_.wrap)
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{
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ThrowIfFailed(
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writeFactory->CreateTextLayout(
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(const wchar_t *)text_,
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length,
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text_format_,
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style_.wrap_width,
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0,
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&text_layout_
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)
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);
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// <20><>ȡ<EFBFBD>ı<EFBFBD><C4B1><EFBFBD><EFBFBD>ֵĿ<D6B5><C4BF>Ⱥ߶<CDB8>
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DWRITE_TEXT_METRICS metrics;
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text_layout_->GetMetrics(&metrics);
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// <20><><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><C4B1><EFBFBD><EFBFBD><EFBFBD>
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this->SetSize(metrics.layoutWidth, metrics.height);
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}
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else
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{
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// Ϊ<><CEAA>ֹ<EFBFBD>ı<EFBFBD><C4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⣬<EFBFBD><E2A3AC><EFBFBD><EFBFBD><EFBFBD>ȴ<EFBFBD><C8B4><EFBFBD> layout <20>Ի<EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>
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ThrowIfFailed(
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writeFactory->CreateTextLayout(
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(const wchar_t *)text_,
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length,
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text_format_,
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0,
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0,
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&text_layout_
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)
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);
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// <20><>ȡ<EFBFBD>ı<EFBFBD><C4B1><EFBFBD><EFBFBD>ֵĿ<D6B5><C4BF>Ⱥ߶<CDB8>
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DWRITE_TEXT_METRICS metrics;
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text_layout_->GetMetrics(&metrics);
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// <20><><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><C4B1><EFBFBD><EFBFBD><EFBFBD>
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this->SetSize(metrics.width, metrics.height);
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// <20><><EFBFBD>´<EFBFBD><C2B4><EFBFBD> layout
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SafeRelease(text_layout_);
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ThrowIfFailed(
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writeFactory->CreateTextLayout(
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(const wchar_t *)text_,
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length,
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text_format_,
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size_.width,
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0,
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&text_layout_
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)
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);
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}
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// <20><><EFBFBD><EFBFBD><EFBFBD>»<EFBFBD><C2BB>ߺ<EFBFBD>ɾ<EFBFBD><C9BE><EFBFBD><EFBFBD>
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DWRITE_TEXT_RANGE Range = { 0, length };
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if (style_.underline)
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{
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text_layout_->SetUnderline(true, Range);
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}
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if (style_.strikethrough)
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{
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text_layout_->SetStrikethrough(true, Range);
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}
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}
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