Dev-Cpp-6.3.tar.gz源码

# SVGIconImageList [](https://opensource.org/licenses/Apache-2.0) ## Three engines to render SVG (GDI+, Direct2D or Cairo) and four components to simplify use of SVG images (resize, fixedcolor, grayscale...) ### Actual official version 2.2.0 (VCL+FMX) | Component | Description | | - | - | |  | **TSVGIconImageCollection** is collection of SVG Images for Delphi to provide a centralized list of images for SVGIconVirtualImageLists (only for VCL) | |  | **TSVGIconVirtualImageList** is a special "virtual" ImageList for Delphi linked to an SVGIconImageCollection (only for VCL) to simplify use of SVG Icons (resize, opacity, grayscale and more...) | |  | **TSVGIconImage** is an extended Image component for Delphi (VCL+FMX) to show any SVG image directly or included into a an SVGIconImageList with all functionality (stretch, opacity, grayscale and more...) | |  | **TSVGIconImageList** is an extended ImageList for Delphi (VCL+FMX) with an embedded SVG image collection: **the VCL component is deprecated**, we recommend to use SVGIconImageCollection + SVGIconVirtualImageList also for older Delphi versions! | ## Very important notice **TVirtualImageList** (available from D10.3) and **TSVGIconVirtualImageList** both use images from **TSVGIconImageCollection**. An important difference is that TVirtualImageList may use and create only a subset of the images in the collection, whereas TSVGIconVirtualImageList creates all images of the collection everytime it is needed (e,g. DPI change), which is slower and consumes more memory. Although TVirtualImageList does not have the FixedColor, GrayScale and Opacity properties, these properties exist at the TSVGIconImageCollection and they would be reflected on the linked TVirtualImageList. We advise that TSVGIconVirtualImageList should be used only for versions of Delphi before 10.3. For recent versions of Delphi the recommended combination should be **TSVGIconImageCollection + TVirtualImageList**. Don't forget also the importance of PreserveItems when you have a large ImageCollection with many linked Actions. Without setting this property to "True", everytime you add or remove an icon in the collection, you have to check and change the ImageIndex of all the Actions. ### New in version 2.2: three SVG engines available! There are three implementation: the "Delphi one" based on Martin's work which is using GDI+, the native Windows one which is using Direct2D or the new "Cairo" wrapper, as explained [here.](https://github.com/EtheaDev/SVGIconImageList/wiki/Choice-of-Factories-(Direct-2D-or-GDI-)) ## Performance comparison This table shows the performance of the three rendering engines tested with SVGExplorer, using a significant amount of icons from different sets, rendered at 48x48 pixels. Count | Icon set | D2D | Cairo | TSVG | D2D | Cairo | TSVG | --: | :-- | --: | --: | --: | --: | --: | --: | 996 | Font-Awesome | 1469ms | 1218ms | 1470ms | 121% | 100% | 121% | 655 | Papirus | 1219ms | 1656ms | 1890ms | 100% | 136% | 155% | 5366 | Material-Design | 12016ms | 9594ms | 10531ms | 125% | 100% | 110% | As you can see, the three engines perform differently depending on the icons and their complexity. There's no clear favourite. ### Available from Delphi XE6 to Delphi 10.4  **Sample image of VCL version**  **Sample image of FMX (Windows) version**  **Sample image of the VCL SVGText-property editor**  ### UTILITY The [SVG Icon Explorer](https://github.com/EtheaDev/SVGIconImageList/wiki/SVGIconExplorer) utility is useful to explore and preview your svg image collections. ### DOCUMENTATION Follow the [guide in Wiki section](https://github.com/EtheaDev/SVGIconImageList/wiki) to known how to use those components to modernize your Delphi VCL or FMX Windows applications scalable, colored and beautiful with few lines of code. ### RELEASE NOTES 23 Sep 2020: versoin 2.2.0 (VCL+FMX) - Added "Cairo" SVG Engine - Added AntialiasColor to perfect antialias effect - Added ImageIndex property editor for SVGIconImage - Added FixedColor and GrayScale to TSVGIconImage component 16 Sep 2020: version 2.1.1 (VCL) 2.1.0 (FMX) - Fixed issues (#110, #111, #113) - Editing SVG text in editor shows errors without losing content 04 Sep 2020: version 2.1.0 (VCL) 1.5.1 (FMX) - Added preview for icons when loading svg files - Fixed many issue (#81, #86, #87, #88, #91, #94, #103...) - Refactoring parsing XML to increase performances (using XmlLite) 26 Aug 2020: version 2.0 (VCL) 1.5.0 (FMX) - Added factory to choose engine - Added interface to use alternative Third-party SVG engine - Redesigned component editor to support Categories for icons - New support for native VirtualImageList (from D10.3) - StoreAsText icons to dfm by default (and unique mode) - Fixed many issues (from #35 to #72) Take care of TSVGIconVirtualImageList.Collection renamed to SVGIconVirtualImageList.ImageCollection. 17 Aug 2020: version 1.9 (VCL+FMX) - FixedColor changed from TSVGColor to TColor - Fixed assign FixedColor to icon in component editor - Updated component editor to use TColorBox 13 Aug 2020: version 1.8 (VCL+FMX) - Complete refactoring for full support of High-DPI - New SVGIconImageCollection component - New SVGIconVirtualImageList component - Redesign of SVGIconImageList component and Component Editor - Demo updated to test multi-monitor with different DPI - Fixed issue #20: Coordinates in double (PaintTo methods) - Fixed issue #25: Transform matrix is wrongly parsed - Fixed issue #26: Error in CalcMartrix - Fixed issue #27: TSVGRadialGradient.ReadIn does not read the gradientTransform matrix - Fixed issue #28: Colors should be reversed in TSVGRadialGradient - Fixed issue #29: Scaling should be based on ViewBox width/height - Fixed issue #31: Empty svg properties cause exceptions - Fixed issue #33: "fill-rule' presentation attribute is not processed - Fixed issue #34: Exception text elements cause exceptions 05 Aug 2020: version 1.7 (VCL+FMX) - Added DPIChanged method - Enhanced SVGExplorer - Fixed issue #20: replaced Double with Single - Fixed issue #19 and 18#: Load/SaveToStream inefficient and encoding inconsistency - Fixed issue #17: Wrong conversion from pt to px - Fixed issue #14: scaling problem - Fixed issue #11: Incompatible with Drag-Drop of TImageList - Fixed issue #6: Rendering of some SVG images is incorrect 15 July 2020: version 1.6 (VCL+FMX) - Fixed rendering on TButton! (VCL) - Fixed "Appl