X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/50567b69d60faa5a3575a077bb4f98530813c80d..d65c269b3f665e15a8ae1b8fff063b2ec0ef19a7:/docs/latex/wx/tsamples.tex diff --git a/docs/latex/wx/tsamples.tex b/docs/latex/wx/tsamples.tex index 9bc339c8a7..1c449aafac 100644 --- a/docs/latex/wx/tsamples.tex +++ b/docs/latex/wx/tsamples.tex @@ -132,6 +132,44 @@ Using the menu entries, you may also dial or hang up the line if you have a modem attached and (this only makes sense for Windows) list the available connections. +\subsection{DnD sample}\label{samplednd} + +This sample shows both clipboard and drag and drop in action. It is quite non +trivial and may be safely used as a basis for implementing the clipboard and +drag and drop operations in a real-life program. + +When you run the sample, its screen is split in several parts. On the top, +there are two listboxes which show the standard derivations of +\helpref{wxDropTarget}{wxdroptarget}: +\helpref{wxTextDropTarget}{wxtextdroptarget} and +\helpref{wxFileDropTarget}{wxfiledroptarget}. + +The middle of the sample window is taken by the log window which shows what is +going on (of course, this only works in debug builds) and may be helpful to see +the sequence of steps of data transfer. + +Finally, the last part is used for dragging text from it to either one of the +listboxes (only one will accept it) or another application. The last +functionality available from the main frame is to paste a bitmap from the +clipboard (or, in the case of Windows version, also a metafile) - it will be +shown in a new frame. + +So far, everything we mentioned was implemented with minimal amount of code +using standard wxWindows classes. The more advanced features are demonstrated +if you create a shape frame from the main frame menu. A shape is a geometric +object which has a position, size and color. It models some +application-specific data in this sample. A shape object supports its own +private \helpref{wxDataFormat}{wxdataformat} which means that you may cut and +paste it or drag and drop (between one and the same or different shapes) from +one sample instance to another (or the same). However, chances are that no +other program supports this format and so shapes can also be rendered as +bitmaps which allows them to be pasted/dropped in many other applications +(and, under Windows, also as metafiles which are supported by most of Windows +programs as well - try Write/Wordpad, for example). + +Take a look at DnDShapeDataObject class to see how you may use +\helpref{wxDataObject}{wxdataobject} to achieve this. + \subsection{Dynamic sample}\label{sampledynamic} This sample is a very small sample that demonstrates the use of the @@ -166,26 +204,6 @@ synchronous and asynchronous cases and how to kill the processes with \helpref{wxProcess::Kill}{wxprocesskill} and test for their existence with \helpref{wxProcess::Exists}{wxprocessexists}. -\subsection{Scroll subwindow sample}\label{samplescrollsub} - -This sample demonstrates the use of the \helpref{wxScrolledWindow}{wxscrolledwindow} -class including placing subwindows into it and drawing simple graphics. It uses the -\helpref{SetTargetWindow}{wxscrolledwindowsettargetwindow} method and thus the effect -of scrolling does not show in the scrolled window itself, but in one of its subwindows. - -Additionally, this samples demonstrates how to optimize drawing operations in wxWindows, -in particular using the \helpref{wxWindow::IsExposed}{wxwindowisexposed} method with -the aim to prevent unnecessary drawing in the window and thus reducing or removing -flicker on screen. - -\subsection{Rotate sample}\label{samplerotate} - -This is a simple example which demonstrates how to rotate an image with -the \helpref{wxImage::Rotate}{wximagerotate} method. The rotation can -be done without interpolation (left mouse button) which will be faster, -or with interpolation (right mouse button) which is slower but gives -better results. - \subsection{Font sample}\label{samplefont} The font sample demonstrates \helpref{wxFont}{wxfont}, @@ -194,44 +212,6 @@ The font sample demonstrates \helpref{wxFont}{wxfont}, available (to wxWindows) on the computer and shows all characters of the chosen font as well. -\subsection{DnD sample}\label{samplednd} - -This sample shows both clipboard and drag and drop in action. It is quite non -trivial and may be safely used as a basis for implementing the clipboard and -drag and drop operations in a real-life program. - -When you run the sample, its screen is split in several parts. On the top, -there are two listboxes which show the standard derivations of -\helpref{wxDropTarget}{wxdroptarget}: -\helpref{wxTextDropTarget}{wxtextdroptarget} and -\helpref{wxFileDropTarget}{wxfiledroptarget}. - -The middle of the sample window is taken by the log window which shows what is -going on (of course, this only works in debug builds) and may be helpful to see -the sequence of steps of data transfer. - -Finally, the last part is used for dragging text from it to either one of the -listboxes (only one will accept it) or another application. The last -functionality available from the main frame is to paste a bitmap from the -clipboard (or, in the case of Windows version, also a metafile) - it will be -shown in a new frame. - -So far, everything we mentioned was implemented with minimal amount of code -using standard wxWindows classes. The more advanced features are demonstrated -if you create a shape frame from the main frame menu. A shape is a geometric -object which has a position, size and color. It models some -application-specific data in this sample. A shape object supports its own -private \helpref{wxDataFormat}{wxdataformat} which means that you may cut and -paste it or drag and drop (between one and the same or different shapes) from -one sample instance to another (or the same). However, chances are that no -other program supports this format and so shapes can also be rendered as -bitmaps which allows them to be pasted/dropped in many other applications -(and, under Windows, also as metafiles which are supported by most of Windows -programs as well - try Write/Wordpad, for example). - -Take a look at DnDShapeDataObject class to see how you may use -\helpref{wxDataObject}{wxdataobject} to achieve this. - \subsection{Grid sample}\label{samplegrid} TODO. @@ -311,6 +291,26 @@ the menu. The sample also provides some timings for adding/deleting/sorting a lot of (several thousands) controls into the control. +\subsection{Rotate sample}\label{samplerotate} + +This is a simple example which demonstrates how to rotate an image with +the \helpref{wxImage::Rotate}{wximagerotate} method. The rotation can +be done without interpolation (left mouse button) which will be faster, +or with interpolation (right mouse button) which is slower but gives +better results. + +\subsection{Scroll subwindow sample}\label{samplescrollsub} + +This sample demonstrates the use of the \helpref{wxScrolledWindow}{wxscrolledwindow} +class including placing subwindows into it and drawing simple graphics. It uses the +\helpref{SetTargetWindow}{wxscrolledwindowsettargetwindow} method and thus the effect +of scrolling does not show in the scrolled window itself, but in one of its subwindows. + +Additionally, this samples demonstrates how to optimize drawing operations in wxWindows, +in particular using the \helpref{wxWindow::IsExposed}{wxwindowisexposed} method with +the aim to prevent unnecessary drawing in the window and thus reducing or removing +flicker on screen. + \subsection{Sockets sample}\label{samplesockets} The sockets sample demonstrates how to use the communication facilities @@ -389,7 +389,7 @@ text ctrls, which is useful for testing if these stastitics actually are correct Thirdly, on platforms which support it, the sample will offer to copy text to the \helpref{wxClipboard}{wxclipboard} and to paste text from it. The GTK version will use the so called PRIMARY SELECTION, which is the pseudo clipboard under X and -best known from pasting text to the XTerm program. +best known from pasting text to the XTerm program. Last not least: some of the text controls have tooltips and the sample also shows how tooltips can be centrally disabled and their latency controlled.