PDFViewerSettingsDialog 0 0 720 538 Options QAbstractItemView::SelectRows 3 0 0 0 0 Engine Settings Rendering engine Enable Multisample antialiasing (MSAA) MSAA Samples count <html><head/><body>Select rendering method according to your needs. Software rendering is much slower than hardware accelerated rendering using OpenGL rendering, but it works when OpenGL is not available at your platform. OpenGL rendering is selected as default and is recommended.OpenGL rendering uses multisample antialiasing (MSAA), which provides good quality antialiasing. You can turn this feature on or off, but without antialiasing, bad quality image can occur. Samples count affect how much samples per pixel are considered to determine pixel color. It can be a value 1, 2, 4, 8, and 16. Most modern GPUs support at least value 8. Lower this value, if your GPU doesn't support the desired sample count.</body></html> true Qt::Vertical 20 40 0 0 0 0 Rendering Settings Smooth pictures Ignore optional content Text antialiasing Enable Antialiasing Clip to crop box Enable Enable Enable Enable <html><head/><body>Rendering settings defines, how rendering engine should handle the page content, and appearance of displayed graphics. Antialiasing turns on antialiasing of painted shapes, such as rectangles, vector graphics, lines, but it did not affects text (characters printed on the screen). Text antialiasing turns on antialiasing of painted characters on the screen, but not any other items. Both Antialiasing and Text antialiasing affects only software renderer. If you are using hardware rendering engine, such as OpenGL rendering engine, this doesn't do anything, because OpenGL engine renders the pictures using MSAA antialiasing (if turned on).Smooth pictures transforms pictures to device space coordinates using smooth image transformation, which usually leads to better image quality. When this is turned off, then default fast transformation is used, and quality of the image is lower, if the source DPI and device DPI is different.Ignore optional content ignores all optional content settings and paints everything in the content stream. Clip to crop box clips the drawing rectangle to the crop box of the page, which is usually smaller, than whole page. The graphics outside of the crop box is not drawn (for example, it can contain marks for printer etc.).</body></html> true Qt::Vertical 20 74 0 0 0 0 Shading Settings Preferred mesh resolution ratio Color tolerance Minimal mesh resolution ratio QAbstractSpinBox::CorrectToNearestValue 3 0.001000000000000 0.100000000000000 0.010000000000000 QAbstractSpinBox::CorrectToNearestValue 3 0.001000000000000 0.100000000000000 0.010000000000000 QAbstractSpinBox::CorrectToNearestValue 3 0.001000000000000 0.100000000000000 0.010000000000000 <html><head/><body>Shading is meshed according the mesh quality criteria. It involves color tolerance and shape tolerance. If color of vertices of triangle in the mesh is too different (it differs more than color tolerance) then mesh is refined and triangle is subdivided. Some shadings are defined by patterns (such as Coons patch shading or Tensor product patch shading), which is also considered in meshing.Preferred mesh resolution ratio should be set to optimal balance between performance of mesh generation and quality of the mesh. Optimal triangle size will be computed in the following way: total meshing area (typically a page) will be multiplied with this ratio and that will determine the triangle size. So, if we have A4 page (210 mm x 297mm), and ratio is set to 0,01, then we will get optimal triangle size as 297 * 0.01 = ~3mm.Minimal mesh resolution ratio is ratio, which will determine triangle minimal size. At this bound, no triangles are subdivided, even if color is different or shape is not good. This should be set to a value, at which user barely can recognize patterns on the screen (for example, the size of triangle should be < 1mm). But it also affect performance, because too much triangles can be generated.Color tolerance is threshold, at which is two colors recognized as different. The comparation is done component-wise, so if at least one of color components is greater than this parameter, then colors are treated as different.</body></html> true Qt::Vertical 20 91 0 0 0 0 Security Settings Enable Allow URI link launch Allow application launch Enable <html><head/><body>If launch of application is allowed, then, after Launch action is triggered, message box appears, which asks the user, if he wants to execute external application. If user confirms the dialog, then external application is executed (for example, by windows function ShellExecute). When this option is turned off, then no dialog appears and external application is never executed.If URI link launch is allowed, then, again, message box appears and asks the user, if he wants to open the URI link. If user confirms the dialog, then URI link is opened by standard web browser (or standard application, if URI links to the file system).User should be really carefull with these settings, and only confirm the execution, if the document is safe, i.e. it comes from reliable source. Launching external applications and following URI links can be harmfull to the user's computer.</body></html> true Qt::Vertical 20 74 Qt::Horizontal QDialogButtonBox::Cancel|QDialogButtonBox::Ok buttonBox accepted() PDFViewerSettingsDialog accept() 248 254 157 274 buttonBox rejected() PDFViewerSettingsDialog reject() 316 260 286 274