api:dk11:delphi:fmx.gisviewerwnd.tgis_viewerwnd
Table of Contents
TGIS_ViewerWnd class
DK for Delphi | FMX.GisViewerWnd.TGIS_ViewerWnd | Classes | Constructors | Methods | Properties | Events
Main FireMonkey visual control for displaying and interacting with maps in a window.
Available also on: .NET WinForms | Java | ActiveX | Python.
Syntax
// Delphi type [ComponentPlatformsAttribute(pidAllPlatforms)] TGIS_ViewerWnd = class( TStyledControl, IGIS_Viewer, IGIS_ViewerParent, IGIS_ViewerWnd ) end;
// C++ Builder class PASCALIMPLEMENTATION TGIS_ViewerWnd : public TStyledControl { };
Inheritance
→ TStyledControl
Implements
Constructors
Inherited
Overrides
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| Create | public | Creates the viewer window control. | |
| Destroy | public | Destroys the viewer window control. | |
Methods
Inherited
Overrides
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| Add | public | Add a layer to the Viewer. (Implements IGIS_Viewer.Add) |
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| AddHierarchy | public | Read hierarchy and build groups with layers. (Implements IGIS_Viewer.AddHierarchy) |
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| AssignedBusyEvent | public | Reference to a busy event handler assigned to the Viewer. (Implements IGIS_Viewer.AssignedBusyEvent) |
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| AssignedHelpEvent | public | Reference to a help event handler assigned to the Viewer. (Implements IGIS_Viewer.AssignedHelpEvent) |
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| AttachLayer | public | Attach layer to the viewer by re-parenting. (Implements IGIS_Viewer.AttachLayer) |
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| BeginPaintInternal | public | Notify viewer about entering of a paint mode. (Implements IGIS_Viewer.BeginPaintInternal) |
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| BusyPrepare | public | Prepare BusyEvent for a long-running operation. (Implements IGIS_Viewer.BusyPrepare) |
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| BusyRelease | public | Release the busy state. (Implements IGIS_Viewer.BusyRelease) |
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| BusyShake | public | Update the busy state. (Implements IGIS_Viewer.BusyShake) |
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| CenterViewport | public | Sets the viewport so that _ptg becomes visible at the center of the screen. (Implements IGIS_Viewer.CenterViewport) |
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| ChangeHash | public | Change hash. (Implements IGIS_Viewer.ChangeHash) |
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| Close | public | Close a project. (Implements IGIS_Viewer.Close) |
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| ControlAutoCenterViewport | public | Move the screen origin of the map by delta values. (Implements IGIS_ViewerParent.ControlAutoCenterViewport) |
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| ControlCanvasHeight | public | Get canvas height. (Implements IGIS_ViewerParent.ControlCanvasHeight) |
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| ControlCanvasScale | public | Get canvas scale. (Implements IGIS_ViewerParent.ControlCanvasScale) |
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| ControlCanvasWidth | public | Get canvas width. (Implements IGIS_ViewerParent.ControlCanvasWidth) |
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| ControlClose | public | Notify the control that the map is going to be closed. (Implements IGIS_ViewerParent.ControlClose) |
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| ControlDrawTexture(TObject; TGIS_Extent; Integer) | public | Draw texture. (Implements IGIS_ViewerParent.ControlDrawTexture) |
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| ControlDrawTexture(TObject; TGIS_LayerAbstract; TGIS_Extent; Integer) | public | Draw texture. (Implements IGIS_ViewerParent.ControlDrawTexture) |
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| ControlExtentChanged | public | Notify the control that the map extent has changed. (Implements IGIS_ViewerParent.ControlExtentChanged) |
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| ControlFlash | public | Do flash. (Implements IGIS_ViewerParent.ControlFlash) |
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| ControlHourglassHide | public | Hide the hourglass cursor. (Implements IGIS_ViewerParent.ControlHourglassHide) |
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| ControlHourglassShake | public | Shake the hourglass cursor. (Implements IGIS_ViewerParent.ControlHourglassShake) |
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| ControlHourglassShow | public | Show the hourglass cursor. (Implements IGIS_ViewerParent.ControlHourglassShow) |
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| ControlInvoke | public | Run procedure in a UI thread context. (Implements IGIS_ViewerParent.ControlInvoke) |
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| ControlObject | public | Returns an active control as an object. (Implements IGIS_ViewerParent.ControlObject) |
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| ControlPPI | public | Get current PPI. (Implements IGIS_ViewerParent.ControlPPI) |
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| ControlProcessMessages | public | Do process messages. (Implements IGIS_ViewerParent.ControlProcessMessages) |
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| ControlRaiseEditorChangeEvent | public | Raise the editor change event. (Implements IGIS_ViewerParent.ControlRaiseEditorChangeEvent) |
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| ControlRenderer | public | Gets the renderer instance. (Implements IGIS_ViewerParent.ControlRenderer) |
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| ControlRepaint | public | Repaint control. (Implements IGIS_ViewerParent.ControlRepaint) |
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| ControlSet3DMode | public | Set the current 3D mode. (Implements IGIS_ViewerParent.ControlSet3DMode) |
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| ControlSystemPPI | public | Get system PPI. (Implements IGIS_ViewerParent.ControlSystemPPI) |
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| ControlUpdateBasemap | public | Update the basemap. (Implements IGIS_ViewerParent.ControlUpdateBasemap) |
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| ControlUpdateEditor | public | Update the editor. (Implements IGIS_ViewerParent.ControlUpdateEditor) |
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| ControlUpdateProgressive | public | Progressive update. (Implements IGIS_ViewerParent.ControlUpdateProgressive) |
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| ControlUpdateSelection | public | Update the selection layer. (Implements IGIS_ViewerParent.ControlUpdateSelection) |
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| ControlUpdateSynchronize | public | Wait for a pending paint operation to be finalized. (Implements IGIS_ViewerParent.ControlUpdateSynchronize) |
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| ControlUpdateTopmost | public | Update the topmost layer. (Implements IGIS_ViewerParent.ControlUpdateTopmost) |
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| ControlUpdateWholeMap | public | Update the whole map. (Implements IGIS_ViewerParent.ControlUpdateWholeMap) |
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| Delete | public | Delete the layer identified by a name. (Implements IGIS_Viewer.Delete) |
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| DoMouseDown | public | Executes the same action as a mouse down event. | |
| DoMouseMove | public | Executes the same action as a mouse move event. | |
| DoMouseUp | public | Executes the same action as a mouse up event. | |
| Draw | public | Draw all layers on a current renderer. (Implements IGIS_Viewer.Draw) |
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| EndPaintInternal | public | Notify viewer about leaving of a paint mode. (Implements IGIS_Viewer.EndPaintInternal) |
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| FullExtent | public | Calculate the screen origin, zoom, and viewport to place the whole map in the window. (Implements IGIS_Viewer.FullExtent) |
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| FullExtentZoom | public | Calculates the zoom that fits the whole map inside the window. (Implements IGIS_Viewer.FullExtentZoom) |
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| Get | public | Retrieve the layer identified by name. (Implements IGIS_Viewer.Get) |
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| GetCacheBitmap | public | Returns a copy of the last cache bitmap. | |
| GetGrid | public | Fill the provided _grid array with values for _extent. (Implements IGIS_Viewer.GetGrid) |
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| GetRenderContext | public | Return current context object. (Implements IGIS_Viewer.GetRenderContext) |
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| GetViewer | public | Get the internal viewer handle. (Implements IGIS_ViewerParent.GetViewer) |
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| HourglassActive | public | Test whether the hourglass is active. (Implements IGIS_Viewer.HourglassActive) |
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| HourglassPrepare | public | Prepare the hourglass cursor for a long operation. (Implements IGIS_Viewer.HourglassPrepare) |
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| HourglassRelease | public | Release Hourglass. (Implements IGIS_Viewer.HourglassRelease) |
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| HourglassRestart | public | Restart hourglass timing used for progressive updates. (Implements IGIS_Viewer.HourglassRestart) |
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| HourglassShake | public | Shake Hourglass. (Implements IGIS_Viewer.HourglassShake) |
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| Interrupt | public | Will terminate timely operation as soon as possible. (Implements IGIS_Viewer.Interrupt) |
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| Interrupted | public | Test whether a pending operation must be aborted. (Implements IGIS_Viewer.Interrupted) |
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| InvalidateBasemap | public | Invalidate only basemap layers. (Implements IGIS_Viewer.InvalidateBasemap) |
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| InvalidateEditor | public | Invalidate the editor to mark the viewer for redraw after an editor change. (Implements IGIS_Viewer.InvalidateEditor) |
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| InvalidateExtent(TGIS_Extent) | public | Invalidate an extent for a full map redraw. (Implements IGIS_Viewer.InvalidateExtent) |
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| InvalidateExtent(TGIS_Extent; Boolean) | public | Invalidate an extent. (Implements IGIS_Viewer.InvalidateExtent) |
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| InvalidateSelection | public | Invalidate the selection to mark the viewer for redraw after a selection change. (Implements IGIS_Viewer.InvalidateSelection) |
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| InvalidateTopmost | public | Invalidate only topmost layers. (Implements IGIS_Viewer.InvalidateTopmost) |
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| InvalidateWholeMap | public | Invalidate whole map. (Implements IGIS_Viewer.InvalidateWholeMap) |
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| Locate(TGIS_Point; Double) | public | Locates the shape nearest to _ptg that is within _prec. (Implements IGIS_Viewer.Locate) |
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| Locate(TGIS_Point; Double; Boolean) | public | Locates the shape nearest to _ptg that is within _prec. (Implements IGIS_Viewer.Locate) |
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| Locate(TPoint; Integer) | public | Locates the shape nearest to _pt that is within _prec. (Implements IGIS_Viewer.Locate) |
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| LocateEx | public | Locates shapes on layers near _ptg and returns the best candidate from each layer that is within _prec. (Implements IGIS_Viewer.LocateEx) |
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| Lock | public | Lock the viewer. (Implements IGIS_Viewer.Lock) |
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| MapToScreen | public | Converts point coordinates from map coordinates to screen coordinates. (Implements IGIS_Viewer.MapToScreen) |
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| MapToScreen3D | public | Converts 3D point coordinates from map coordinates to screen coordinates. (Implements IGIS_Viewer.MapToScreen3D) |
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| MapToScreenEx | public | Converts point coordinates from map coordinates to screen coordinates, returning the result as TGIS_Point. (Implements IGIS_Viewer.MapToScreenEx) |
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| MapToScreenRect | public | Converts rectangle coordinates from map related to screen related. (Implements IGIS_Viewer.MapToScreenRect) |
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| MarkModified | public | Mark viewer upon some modifications. (Implements IGIS_Viewer.MarkModified) |
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| MoveViewport | public | Move the screen origin of the map by delta values. (Implements IGIS_Viewer.MoveViewport) |
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| MoveViewportEx | public | Move the screen origin of the map by delta values. (Implements IGIS_Viewer.MoveViewportEx) |
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| MustSave | public | Check if any layer or the project file was modified by editing. (Implements IGIS_Viewer.MustSave) |
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| NotifyPaintException | public | Transform an exception into a TGIS_Viewer.OnPaintException event. (Implements IGIS_Viewer.NotifyPaintException) |
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| NotifySubscribers | public | Send notification to subscribers. (Implements IGIS_Viewer.NotifySubscribers) |
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| Open(String) | public | Open a project. (Implements IGIS_Viewer.Open) |
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| Open(String; Boolean) | public | Open a project. (Implements IGIS_Viewer.Open) |
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| OpenAsync(String; Boolean; TGIS_AsyncCallback) | public | Open a project asynchronously. (Implements IGIS_Viewer.OpenAsync) |
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| OpenAsync(String; TGIS_AsyncCallback) | public | Open a project asynchronously. (Implements IGIS_Viewer.OpenAsync) |
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| OpenEx(TGIS_ConfigAbstract; String) | public | Open a project file from memory. (Implements IGIS_Viewer.OpenEx) |
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| OpenEx(TGIS_ConfigAbstract; String; Boolean) | public | Open a project file from memory. (Implements IGIS_Viewer.OpenEx) |
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| OpenExAsync(TGIS_ConfigAbstract; String; Boolean; TGIS_AsyncCallback) | public | Open a project file from memory asynchronously. (Implements IGIS_Viewer.OpenExAsync) |
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| OpenExAsync(TGIS_ConfigAbstract; String; TGIS_AsyncCallback) | public | Open a project file from memory asynchronously. (Implements IGIS_Viewer.OpenExAsync) |
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| PixelsToTwips | public | Convert size from device dependent pixels to device independent Twips (1/1440 inch). (Implements IGIS_Viewer.PixelsToTwips) |
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| public | Print the current viewer content using the default printer. (Implements IGIS_ViewerWnd.Print) |
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| Print(IGIS_Printer) | public | Print the current viewer content using the specified printer. (Implements IGIS_ViewerWnd.Print) |
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| PrintBmp(FMX.Types.TBitmap) | public | Prints the current view to a bitmap covering the control's current VisibleExtent. | |
| PrintBmp(FMX.Types.TBitmap; Boolean) | public | Prints the current view to a bitmap covering the control's current VisibleExtent. | |
| PrintBmp(TGIS_Bitmap) | public | Print the current content on a bitmap. (Implements IGIS_ViewerWnd.PrintBmp) |
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| PrintBmp(TGIS_Bitmap; Boolean) | public | Print the current content on a bitmap. (Implements IGIS_ViewerWnd.PrintBmp) |
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| PrintClipboard | public | Copies the current view to the clipboard. | |
| PrintClipboard(Boolean) | public | Copies the current view to the clipboard. | |
| PrintPdf(String) | public | Prints the current extent to PDF using the default page size. (Implements IGIS_Viewer.PrintPdf) |
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| PrintPdf(String; Single; Single) | public | Prints the current extent to PDF. (Implements IGIS_Viewer.PrintPdf) |
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| PrintPdf(TStream) | public | Prints the current extent to PDF using the default page size. (Implements IGIS_Viewer.PrintPdf) |
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| PrintPdf(TStream; Single; Single) | public | Prints the current extent to PDF. (Implements IGIS_Viewer.PrintPdf) |
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| RaiseBusyEvent | public | Fire Busy event of a viewer. (Implements IGIS_Viewer.RaiseBusyEvent) |
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| RaiseHelpEvent | public | Fire the Help event of a viewer. (Implements IGIS_Viewer.RaiseHelpEvent) |
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| ReadConfig | public | Read all configuration data from the project. (Implements IGIS_Viewer.ReadConfig) |
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| RecalcExtent | public | Calculates a common extent. (Implements IGIS_Viewer.RecalcExtent) |
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| ReParent | public | Set a new parent for the viewer. (Implements IGIS_Viewer.ReParent) |
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| ReParentLock | public | Block reparenting. (Implements IGIS_Viewer.ReParentLock) |
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| ReParentUnlock | public | Unblock reparenting. (Implements IGIS_Viewer.ReParentUnlock) |
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| Reposition | public | Reposition the map within the component window. (Implements IGIS_Viewer.Reposition) |
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| RereadConfig | public | Reread all configuration data from the project and layer configuration files. (Implements IGIS_Viewer.RereadConfig) |
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| RestorePaintState | public | Restore and free the current paint state. (Implements IGIS_Viewer.RestorePaintState) |
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| RevertAll | public | Revert all layers to a file-based original. (Implements IGIS_Viewer.RevertAll) |
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| RotatedExtent | public | Compute extent (encompassing area of the extent) after the viewer rotation. (Implements IGIS_Viewer.RotatedExtent) |
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| RotatedPoint | public | Computes the position of a point after viewer rotation. (Implements IGIS_Viewer.RotatedPoint) |
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| RotatedPoint3D | public | Compute position of the 3D point after the viewer rotation. (Implements IGIS_Viewer.RotatedPoint3D) |
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| RotatedPoint3D_ref | public | Computes the position of the 3D point after viewer rotation. (Implements IGIS_Viewer.RotatedPoint3D_ref) |
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| SaveAll | public | Save all layers (parameters and data) (Implements IGIS_Viewer.SaveAll) |
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| SaveData | public | Save all changes to the data. (Implements IGIS_Viewer.SaveData) |
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| SaveProject | public | Save the current project. (Implements IGIS_Viewer.SaveProject) |
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| SaveProject(Boolean) | public | Save the current project. (Implements IGIS_Viewer.SaveProject) |
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| SaveProjectAs(String) | public | Save the current project under a new name. (Implements IGIS_Viewer.SaveProjectAs) |
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| SaveProjectAs(String; Boolean) | public | Save the current project under a new name. (Implements IGIS_Viewer.SaveProjectAs) |
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| SaveProjectAsEx(TGIS_ConfigAbstract; String) | public | Save the current project under a new name. (Implements IGIS_Viewer.SaveProjectAsEx) |
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| SaveProjectAsEx(TGIS_ConfigAbstract; String; Boolean) | public | Save the current project under a new name. (Implements IGIS_Viewer.SaveProjectAsEx) |
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| ScreenToMap | public | Converts point coordinates from screen coordinates to map coordinates. (Implements IGIS_Viewer.ScreenToMap) |
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| ScreenToMap3D | public | Converts point coordinates from screen coordinates to map coordinates. (Implements IGIS_Viewer.ScreenToMap3D) |
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| ScreenToMapEx | public | Converts point coordinates from screen coordinates to map coordinates, using TGIS_Point as the source type. (Implements IGIS_Viewer.ScreenToMapEx) |
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| ScreenToMapRect | public | Converts rectangle coordinates from screen related to map related. (Implements IGIS_Viewer.ScreenToMapRect) |
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| SetCSByEPSG | public | Sets the coordinate system from an EPSG code. (Implements IGIS_Viewer.SetCSByEPSG) |
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| SetCSByWKT | public | Sets the coordinate system from a WKT string (GEOGCS or PROJCS). (Implements IGIS_Viewer.SetCSByWKT) |
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| SetCSByWKTFile | public | Sets the coordinate system from a file containing a WKT string (GEOGCS or PROJCS). (Implements IGIS_Viewer.SetCSByWKTFile) |
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| SetViewer | public | Set the internal viewer handle. (Implements IGIS_ViewerParent.SetViewer) |
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| SetViewport | public | Sets the viewport to a given position. (Implements IGIS_Viewer.SetViewport) |
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| StorePaintState | public | Store the current paint state. (Implements IGIS_Viewer.StorePaintState) |
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| Subscribe | public | Add provided control to the notification subscription list. (Implements IGIS_Viewer.Subscribe) |
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| SynchronizePaint | public | Wait for a pending paint operation to finish. (Implements IGIS_Viewer.SynchronizePaint) |
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| TapDouble | protected | Calls the action equivalent to a double tap. | |
| TapLong | protected | Calls the action equivalent to a long tap (press and hold). | |
| TapSingle | protected | Calls the action equivalent to a single tap. | |
| TwipsToPixels | public | Converts a size from device-independent twips (1/1440 inch) to device-dependent pixels to keep the map device independent. (Implements IGIS_Viewer.TwipsToPixels) |
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| TwipsToPoints | public | Convert the size from to device independent Twips (1/1440 inch) to device points. (Implements IGIS_Viewer.TwipsToPoints) |
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| Unlock | public | Unlock the viewer and redraw it. (Implements IGIS_Viewer.Unlock) |
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| Unlock(Boolean) | public | Unlock the viewer and optionally redraw it. (Implements IGIS_Viewer.Unlock) |
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| UnrotatedExtent | public | Compute original extent of the rotated extent. (Implements IGIS_Viewer.UnrotatedExtent) |
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| UnrotatedPoint | public | Compute original position of the rotated point. (Implements IGIS_Viewer.UnrotatedPoint) |
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| UnrotatedPoint3D | public | Compute original position of the rotated 3D point. (Implements IGIS_Viewer.UnrotatedPoint3D) |
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| UnrotatedPoint3D_ref | public | Compute original position of the rotated 3D point. (Implements IGIS_Viewer.UnrotatedPoint3D_ref) |
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| UnSubscribe | public | Remove provided control from the notification subscription list. (Implements IGIS_Viewer.UnSubscribe) |
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| WaitForBackgroundProcesses | public | Waits for any pending background processes that must finish before the application can continue. (Implements IGIS_Viewer.WaitForBackgroundProcesses) |
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| WaitForNotBusy | public | Calls _proc when the viewer fully finishes the painting process. (Implements IGIS_Viewer.WaitForNotBusy) |
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| WriteConfig | public | Write all configuration data to the project or layer INI file. (Implements IGIS_Viewer.WriteConfig) |
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| ZoomBy | public | Zoom the viewer. (Implements IGIS_ViewerWnd.ZoomBy) |
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Properties
Inherited
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| Action | published | Standard FMX property. | |
| ActiveBackgroundColor | public | Effective background color currently used by the viewer, including the active FireMonkey style. | |
| Align | published | Standard FMX property. | |
| Anchors | published | Standard FMX property. | |
| AutoCenter | published | If True, centers the map view during operations such as clicking or editing. | |
| AutoStyle | published | If True, layers added to the viewer will have a unique style applied; Default is False. (Implements IGIS_Viewer.AutoStyle) |
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| BackgroundColor | published | Background color of the viewer. | |
| BigExtent | public | Map extent. (Implements IGIS_Viewer.BigExtent) |
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| BigExtentMargin | published | Map extent margin. (Implements IGIS_Viewer.BigExtentMargin) |
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| BusyLevel | public | Level of current busy state. (Implements IGIS_Viewer.BusyLevel) |
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| BusyText | public | Text related to current busy state. (Implements IGIS_Viewer.BusyText) |
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| Center | public | Center the screen based on given point. (Implements IGIS_Viewer.Center) |
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| CenterPtg | public | Point on which Viewer will be centered during Zoom. (Implements IGIS_Viewer.CenterPtg) |
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| Color | public | Background color. (Inherited from IGIS_Viewer) |
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| Copyright | public | Legal notice and product version. (Implements IGIS_Viewer.Copyright) |
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| CS | public | Coordinate System assigned to the viewer. (Implements IGIS_Viewer.CS) |
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| CursorFor3DSelect | published | Cursor for TGIS_Viewer3DMode.Select. | |
| CursorForCameraPosition | published | Cursor for TGIS_Viewer3DMode.CameraPosition. | |
| CursorForCameraRotation | published | Cursor for TGIS_Viewer3DMode.CameraRotation. | |
| CursorForCameraXY | published | Cursor for TGIS_Viewer3DMode.CameraXY. | |
| CursorForCameraXYZ | published | Cursor for TGIS_Viewer3DMode.CameraXYZ. | |
| CursorForCameraZoom | published | Cursor for TGIS_Viewer3DMode.Zoom. | |
| CursorForDrag | published | Cursor for TGIS_ViewerMode.Drag mode when panning the map. | |
| CursorForEdit | published | Cursor for TGIS_ViewerMode.Edit mode when editing map features. | |
| CursorForSelect | published | Cursor for TGIS_ViewerMode.Select mode when selecting map features. | |
| CursorForSunPosition | published | Cursor for TGIS_Viewer3DMode.SunPosition. | |
| CursorForUserDefined | published | Cursor for TGIS_ViewerMode.UserDefined mode. | |
| CursorForZoom | published | Cursor for TGIS_ViewerMode.Zoom mode when zooming with a rubber-band rectangle. | |
| CursorForZoomEx | published | Cursor for TGIS_ViewerMode.ZoomEx mode when zooming interactively. | |
| CustomData | public | List of custom user-defined data saved to and restored from config/project files. (Implements IGIS_Viewer.CustomData) |
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| CustomPPI | published | Custom resolution in pixels-per-inch. (Implements IGIS_Viewer.CustomPPI) |
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| DelayedUpdate | published | Delayed update threshold in milliseconds. (Implements IGIS_Viewer.DelayedUpdate) |
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| Editor | public | Editor context. (Implements IGIS_Viewer.Editor) |
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| Enabled | published | Standard FMX property. | |
| Extent | public | Map extent. (Implements IGIS_Viewer.Extent) |
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| FileCopyrights | public | List of copyrights. (Implements IGIS_Viewer.FileCopyrights) |
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| FontScale | published | Font magnifying factor in percents. (Implements IGIS_Viewer.FontScale) |
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| FullDrawExtent | public | Extent of the full current or last drawing area, including margin and without tiling. (Implements IGIS_Viewer.FullDrawExtent) |
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| Graticule | public | Graticule object used to draw coordinate grid lines. | |
| Height | published | Standard FMX property. | |
| Hierarchy | public | Hierarchy list. (Implements IGIS_Viewer.Hierarchy) |
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| HiRes | published | Enables high-resolution rendering. | |
| HitTest | published | Standard FMX property. | |
| IncrementalPaint | published | Is partial drawing to screen done in incremental mode? (Implements IGIS_Viewer.IncrementalPaint) |
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| InPaint | public | True if Viewer is busy in Paint procedure. (Implements IGIS_Viewer.InPaint) |
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| IsBusy | public | Indicates whether the viewer is currently painting. (Implements IGIS_Viewer.IsBusy) |
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| IsEmpty | public | True if Viewer is empty (no layers). (Implements IGIS_Viewer.IsEmpty) |
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| IsLocked | public | True if Viewer is in locked state Lock. (Implements IGIS_Viewer.IsLocked) |
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| IsTopmost | public | True if Viewer has a topmost layer. (Implements IGIS_Viewer.IsTopmost) |
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| Items | public | All layers. (Implements IGIS_Viewer.Items) |
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| KeepScale | published | True if a viewer should maintain scale upon resize. (Implements IGIS_Viewer.KeepScale) |
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| LabelsReg | public | Labels position allocator object. (Implements IGIS_Viewer.LabelsReg) |
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| Level | public | Sets and gets zoom level for a viewer. (Implements IGIS_Viewer.Level) |
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| Locked | published | Standard FMX property. | |
| Margins | published | Standard FMX property. | |
| MasterViewer | public | Master Viewer reference. (Implements IGIS_Viewer.MasterViewer) |
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| MinZoomSize | published | Minimal size of the zooming rectangle. | |
| Mode | published | Determines how the viewer reacts to mouse input. | |
| ModeMouseButton | published | Mouse button used for mode operations such as dragging and selecting. | |
| MultiUserMode | published | Multiuser mode. (Implements IGIS_Viewer.MultiUserMode) |
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| Opacity | published | Standard FMX property. | |
| OverlappedExtentMargin | public | Overlapped extent margin (in pixels). (Implements IGIS_Viewer.OverlappedExtentMargin) |
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| Padding | published | Standard FMX property. | |
| PopupMenu | published | Standard FMX property. | |
| Position | published | Standard FMX property. | |
| PPI | public | Rendering resolution in pixels per inch. (Implements IGIS_Viewer.PPI) |
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| ProgressiveUpdate | published | Progressive update threshold in milliseconds. (Implements IGIS_Viewer.ProgressiveUpdate) |
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| ProjectFile | public | Project file itself as opened in Open procedure. (Implements IGIS_Viewer.ProjectFile) |
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| ProjectName | public | Project file name as opened in Open procedure. (Implements IGIS_Viewer.ProjectName) |
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| Renderer | public | Currently active renderer. | |
| RestrictedDrag | published | If True, dragging outside the map extent is not allowed. (Implements IGIS_Viewer.RestrictedDrag) |
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| RestrictedExtent | public | Restricted map extent. (Implements IGIS_Viewer.RestrictedExtent) |
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| RotationAngle | published | Standard FMX property. (Implements IGIS_Viewer.RotationAngle) |
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| RotationAngleEx | public | ||
| RotationCenter | published | Standard FMX property. | |
| RotationPoint | public | Point of viewer rotation in map units. (Implements IGIS_Viewer.RotationPoint) |
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| Scale | public | Setting up and reading the scale factor. (Implements IGIS_Viewer.Scale) |
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| ScaleAsFloat | public | Setting up and reading the scale factor. (Implements IGIS_Viewer.ScaleAsFloat) |
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| ScaleAsText | public | Setting up and reading the scale factor as text in format '1:10000'. (Implements IGIS_Viewer.ScaleAsText) |
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| SelectionColor | published | Color for selected objects. | |
| SelectionGisColor | public | Color used for selecting object. (Implements IGIS_Viewer.SelectionGisColor) |
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| SelectionOutlineOnly | published | If True, polygons are marked only with an outline and not filled. (Implements IGIS_Viewer.SelectionOutlineOnly) |
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| SelectionTransparency | published | Transparency value for selection; if 100 SelectionGisColor will not be transparent. (Implements IGIS_Viewer.SelectionTransparency) |
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| SelectionWidth | published | Outline width of selection area (>0 in twips, <0 in pixels). (Implements IGIS_Viewer.SelectionWidth) |
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| Size | published | Standard FMX property. | |
| SystemPPI | public | System resolution in pixels-per-inch. (Implements IGIS_Viewer.SystemPPI) |
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| TabOrder | published | Standard FMX property. | |
| TabStop | published | Standard FMX property. | |
| TemporaryScaleInternal | public | Used to force rendering in a different scale then actual. (Implements IGIS_Viewer.TemporaryScaleInternal) |
|
| TemporaryVisibleExtent | public | Used to force rendering labels while drawing with tiles. (Implements IGIS_Viewer.TemporaryVisibleExtent) |
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| TiledPaint | published | Is partial drawing to screen done in tiled mode? (Implements IGIS_Viewer.TiledPaint) |
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| TouchTargetExpansion | published | Standard FMX property. | |
| UponDestroy | public | True if viewer is upon destruction so some operations (like screen updates) should not be performed (Implements IGIS_Viewer.UponDestroy) |
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| UseAnimations | published | True if zoom animations are allowed. (Implements IGIS_Viewer.UseAnimations) |
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| UseRTree | published | True if RTree will be used by default upon creation of any layer. (Implements IGIS_Viewer.UseRTree) |
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| View3D | public | Indicates whether 3D mode is enabled for the viewer. | |
| Viewer3D | public | Optional 3D viewer interface used when 3D mode is enabled. | |
| ViewerParent | public | Parent for the current IGIS_Viewer object. (Implements IGIS_Viewer.ViewerParent) |
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| ViewerParentRoot | public | Root parent for the current IGIS_Viewer object. (Implements IGIS_Viewer.ViewerParentRoot) |
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| Viewport | public | Setting an upper left corner position of the components window within the map. (Implements IGIS_Viewer.Viewport) |
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| Visible | published | Standard FMX property. | |
| VisibleExtent | public | Extent of the map visible in the window. (Implements IGIS_Viewer.VisibleExtent) |
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| Width | published | Standard FMX property. | |
| Zoom | public | Setting up and reading the related zoom factor. (Implements IGIS_Viewer.Zoom) |
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| ZoomEx | public | Setting up and reading the absolute zoom factor. (Implements IGIS_Viewer.ZoomEx) |
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Events
Inherited
Protected
Private
| Name | Visibility | Description | |
|---|---|---|---|
| AfterPaintEvent | published | AfterPaint event. | |
| AfterPaintRendererEvent | published | AfterPaintRenderer event. | |
| AfterProjectOpenEvent | published | AfterProjectOpen event. | |
| AfterUpdateEvent | published | AfterUpdate event. | |
| BeforePaintEvent | published | BeforePaint event. | |
| BeforePaintRendererEvent | published | BeforePaintRenderer event. | |
| BeforeUpdateEvent | published | BeforeUpdate event. | |
| BusyEvent | published | Busy event. | |
| EditorChangeEvent | published | Fired after any change made by the editor. | |
| EditorPointChangeEvent | published | EditorPointChange event. | |
| EditorPointMoveEvent | published | EditorPointMove event. | |
| EditorSnapPointEvent | published | EditorSnapPoint event. | |
| ExtentChangeEvent | published | ExtentChange event. | |
| HelpEvent | published | Help event. | |
| LayerAddEvent | published | LayerAdd event. | |
| LayerDeleteEvent | published | LayerDelete event. | |
| ModeChangeEvent | published | Fired when the viewer mode changes. | |
| OnApplyStyleLookup | published | Standard FMX event. | |
| OnCanFocus | published | Standard FMX event. | |
| OnClick | published | Standard FMX event. | |
| OnDblClick | published | Standard FMX event. | |
| OnDragDrop | published | Standard FMX event. | |
| OnDragEnd | published | Standard FMX event. | |
| OnDragEnter | published | Standard FMX event. | |
| OnDragLeave | published | Standard FMX event. | |
| OnDragOver | published | Standard FMX event. | |
| OnEnter | published | Standard FMX event. | |
| OnExit | published | Standard FMX event. | |
| OnKeyDown | published | Standard FMX event. | |
| OnKeyUp | published | Standard FMX event. | |
| OnMouseDown | published | Standard FMX event. | |
| OnMouseEnter | published | Standard FMX event. | |
| OnMouseLeave | published | Standard FMX event. | |
| OnMouseMove | published | Standard FMX event. | |
| OnMouseUp | published | Standard FMX event. | |
| OnMouseWheel | published | Standard FMX event. | |
| OnPaint | published | Standard FMX event. | |
| OnPainting | published | Standard FMX event. | |
| OnResize | published | Standard FMX event. | |
| PaintExceptionEvent | published | PaintException event. | |
| PaintExtraEvent | published | PaintExtra event. | |
| PasswordEvent | published | Password event. | |
| ProjectCloseEvent | published | ProjectClose event. | |
| ProjectOpenEvent | published | ProjectOpen event. | |
| TapDoubleEvent | published | TapDouble event. | |
| TapLongEvent | published | TapLong event. | |
| TapSimpleEvent | published | TapSimple event. | |
| VisibleExtentChangeEvent | published | VisibleExtentChange event. | |
| ZoomChangeEvent | published | ZoomChange event. | |
Remarks
PURPOSE: Serves as the primary FireMonkey map viewer control, bridging the user interface with rendering, layer management, navigation, selection, editing, printing, and optional 3D viewing.
BEHAVIOR: Presents map content on screen, manages repainting and viewport state, and converts between screen and map coordinates. It also handles mouse, touch, tap, and gesture input for interactive map operations.
CONSTRAINTS: For bitmap output useinstead of this windowed control. Optional 3D functionality is available only when an backend is assigned.
Available metadata keys:
| Metadata | Values | Default | Description |
|---|---|---|---|
| TGIS_ViewerWnd.Paint.NavigateFeedback.FullCache | TRUE FALSE | TRUE | If true then all labels, selections, and topmost layers will be visible upon scaling, dragging etc. |
| TGIS_ViewerWnd.Paint.Progressive.Transparency | 0..100 | 60 | Long-term operations will be drawn as semitransparent. |
| TGIS_ViewerWnd.Paint.Progressive.FullCache | TRUE FALSE | TRUE | If true then long-term operations will be drawn behind last cached view. |
| TGIS_ViewerWnd.Paint.LabelsOnTop | TRUE FALSE | FALSE | If true then labels are drawn on top. |
| TGIS_ViewerWnd.Paint.Topmost.LabelsOnTop | TRUE FALSE | FALSE | If true then for topmost layers labels are drawn on top. |
Available metadata keys:
| Metadata | Values | Default | Description |
|---|---|---|---|
| TGIS_ViewerWnd.Mode.Drag.AllGestures | TRUE FALSE | FALSE | If true then all gestures (pan and zoom) are enabled. If false then pan gesture simulates the mouse. |
| TGIS_ViewerWnd.Mode.Zoom.AllGestures | TRUE FALSE | FALSE | If true then all gestures (pan and zoom) are enabled. If false then pan gesture simulates the mouse. |
| TGIS_ViewerWnd.Mode.Select.AllGestures | TRUE FALSE | TRUE | If true then all gestures (pan and zoom) are enabled. If false then no gestures are enabled. |
| TGIS_ViewerWnd.Mode.Edit.AllGestures | TRUE FALSE | TRUE | If true then zoom and 2-finger pan gestures are enabled. If false then zoom and 2-finger pan gestures are disabled. |
| TGIS_ViewerWnd.Viewer3D.Mode.CameraPosition.AllGestures | TRUE FALSE | FALSE | If true then zoom gesture is enabled. If false then zoom gesture is disabled. |
| TGIS_ViewerWnd.Viewer3D.Mode.CameraXY.AllGestures | TRUE FALSE | FALSE | If true then zoom gesture is enabled. If false then zoom gesture is disabled. |
| TGIS_ViewerWnd.Viewer3D.Mode.CameraXYZ.AllGestures | TRUE FALSE | FALSE | If true then zoom gesture is enabled. If false then zoom gesture is disabled. |
| TGIS_ViewerWnd.Viewer3D.Mode.CameraRotation.AllGestures | TRUE FALSE | FALSE | If true then zoom gesture is enabled. If false then zoom gesture is disabled. |
| TGIS_ViewerWnd.Viewer3D.Mode.SunPosition.AllGestures | TRUE FALSE | FALSE | If true then zoom gesture is enabled. If false then zoom gesture is disabled. |
| TGIS_ViewerWnd.Viewer3D.Mode.Zoom.AllGestures | TRUE FALSE | FALSE | If true then all gestures (pan and zoom) are enabled. If false then pan gesture simulates the mouse. |
| TGIS_ViewerWnd.Viewer3D.Mode.Select.AllGestures | TRUE FALSE | TRUE | If true then all gestures (pan and zoom) are enabled. If false then no gestures are enabled. |
References
2026/07/08 01:26