#include <Pt/Forms/CheckBoxStyler.h>
Renders the look of a check box. More...
Inherits Renderer.
Public Member Functions | |
| CheckBoxRenderer (std::size_t refs=0) | |
| Constructs a renderer with reference count refs. | |
| virtual | ~CheckBoxRenderer () |
| Destroys the renderer. | |
| CheckBoxRenderer * | create () const |
| Creates a new default-constructed instance that the caller owns. | |
| Gfx::SizeF | measureIndicator (PaintSurface &surface) |
| Returns the natural size of the check indicator on surface. | |
| Gfx::SizeF | measureContent (PaintSurface &surface, const Gfx::SizeF &indicatorSize, const Gfx::SizeF &textSize) |
| Returns the combined content size for indicator and text. | |
| Gfx::SizeF | measureFrame (PaintSurface &surface, const Gfx::SizeF &contentSize) |
| Returns the outer size including frame for the given content size. | |
| Gfx::RectF | layoutFrame (PaintSurface &surface, const Gfx::RectF &frameRect) |
| Returns the content rectangle within the outer frame rect. | |
| void | layoutContent (PaintSurface &surface, const Gfx::RectF &contentRect, const Gfx::SizeF &indicatorSize, const Gfx::SizeF &textSize, Gfx::RectF &indicatorRect, Gfx::RectF &textRect) |
| Partitions the content rect into indicator and text sub-rectangles. | |
| Gfx::RectF | layoutMnemonic (PaintSurface &surface, const String &text, const Gfx::PointF &textPos, const Gfx::FontMetrics &fontMetrics, String::size_type mnemonicIndex) |
| Computes the underline rectangle for the mnemonic character. | |
| const Painter & | textPainter (PaintSurface &surface) |
| Returns a painter with the current font and text color applied. | |
| void | renderChrome (PaintContext &context, const Gfx::RectF &rect, const Gfx::RectF &boxRect, const CheckBoxState &state) |
| Draws the check indicator chrome within the widget rect. | |
| void | renderText (PaintContext &context, const Gfx::RectF &textRect, const String &text, const Gfx::PointF &pos, const CheckBoxState &state) |
| Draws text at pos, clipped to the text rect. | |
| void | renderMnemonic (PaintContext &context, const Gfx::RectF &rect, const Gfx::RectF &mnemonic, const CheckBoxState &state) |
| Draws the mnemonic underline within mnemonic, clipped to the widget rect. | |
| const std::type_info & | typeId () const |
| Returns the dynamic type used as the registry key. | |
| void | ref () |
| Adds one reference. | |
| std::size_t | unref () |
| Removes one reference and returns the remaining count. | |
| void | reset (const StyleOptions &options) |
| Resets this facet with options. | |
Protected Member Functions | |
| virtual CheckBoxRenderer * | onCreate () const =0 |
| Creates a new instance of the same concrete type. | |
| virtual void | onReset (const StyleOptions &options)=0 |
| Resets this facet with options. | |
| virtual Gfx::SizeF | onMeasureIndicator (PaintSurface &surface)=0 |
| Returns the natural size of the checkable area. | |
| virtual Gfx::SizeF | onMeasureContent (PaintSurface &surface, const Gfx::SizeF &indicatorSize, const Gfx::SizeF &textSize)=0 |
| Returns the combined size of the checkable area and caption. | |
| virtual Gfx::SizeF | onMeasureFrame (PaintSurface &surface, const Gfx::SizeF &contentSize)=0 |
| Measures the frame enclosing contentSize. | |
| virtual Gfx::RectF | onLayoutFrame (PaintSurface &surface, const Gfx::RectF &frameRect)=0 |
| Returns the content rectangle within frameRect. | |
| virtual void | onLayoutContent (PaintSurface &surface, const Gfx::RectF &contentRect, const Gfx::SizeF &indicatorSize, const Gfx::SizeF &textSize, Gfx::RectF &indicatorRect, Gfx::RectF &textRect)=0 |
| Partitions contentRect into checkable area and caption. | |
| virtual Gfx::RectF | onLayoutMnemonic (PaintSurface &surface, const String &text, const Gfx::PointF &textPos, const Gfx::FontMetrics &fontMetrics, String::size_type mnemonicIndex)=0 |
| Returns the mnemonic underline rectangle. | |
| virtual const Painter & | onGetTextPainter (PaintSurface &surface)=0 |
| Returns a painter with the current font and text color. | |
| virtual void | onRenderChrome (PaintContext &context, const Gfx::RectF &rect, const Gfx::RectF &boxRect, const CheckBoxState &state)=0 |
| Paints the checkable area for state. | |
| virtual void | onRenderText (PaintContext &context, const Gfx::RectF &textRect, const String &text, const Gfx::PointF &pos, const CheckBoxState &state)=0 |
| Paints text at pos for state. | |
| virtual void | onRenderMnemonic (PaintContext &context, const Gfx::RectF &rect, const Gfx::RectF &mnemonic, const CheckBoxState &state)=0 |
| Paints the mnemonic underline for state. | |
A CheckBoxRenderer is a Style::Facet for the check-box family. Named measure methods run inside-out: indicator, content, then frame. Named layout methods run outside-in: frame, then content and mnemonic. Named render methods paint prepared rectangles. The widget owns geometry and orchestrates those passes. The renderer does not mutate widget geometry.
Derive a renderer to change the look of check boxes. Register it on a Style, or assign it to a widget with CheckBox::setRenderer().
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protectedpure virtual |
Resolves tokens from options and stores the painter and metric state used later by measure, layout, and render. Shared facets are reset when the application applies global options.
Reimplemented from Style::Facet.