X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.eclipse.swt.win32.win32.x86_64%2Fsrc%2Forg%2Feclipse%2Fswt%2Fwidgets%2FProgressBar.java;fp=bundles%2Forg.eclipse.swt.win32.win32.x86_64%2Fsrc%2Forg%2Feclipse%2Fswt%2Fwidgets%2FProgressBar.java;h=c761b0a2f851b137ea95d0e8e7ae25b15e6b2721;hb=6b98970d0458754dd67f789afbd0a39e1e7ac6eb;hp=0000000000000000000000000000000000000000;hpb=56a61575ce0d27b340cb12438c8a7f303842095e;p=simantics%2Fplatform.git diff --git a/bundles/org.eclipse.swt.win32.win32.x86_64/src/org/eclipse/swt/widgets/ProgressBar.java b/bundles/org.eclipse.swt.win32.win32.x86_64/src/org/eclipse/swt/widgets/ProgressBar.java new file mode 100644 index 000000000..c761b0a2f --- /dev/null +++ b/bundles/org.eclipse.swt.win32.win32.x86_64/src/org/eclipse/swt/widgets/ProgressBar.java @@ -0,0 +1,454 @@ +/******************************************************************************* + * Copyright (c) 2000, 2012 IBM Corporation and others. + * + * This program and the accompanying materials + * are made available under the terms of the Eclipse Public License 2.0 + * which accompanies this distribution, and is available at + * https://www.eclipse.org/legal/epl-2.0/ + * + * SPDX-License-Identifier: EPL-2.0 + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +package org.eclipse.swt.widgets; + + +import org.eclipse.swt.internal.win32.*; +import org.eclipse.swt.*; +import org.eclipse.swt.graphics.*; + +/** + * Instances of the receiver represent an unselectable + * user interface object that is used to display progress, + * typically in the form of a bar. + *
+ *
Styles:
+ *
SMOOTH, HORIZONTAL, VERTICAL, INDETERMINATE
+ *
Events:
+ *
(none)
+ *
+ *

+ * Note: Only one of the styles HORIZONTAL and VERTICAL may be specified. + *

+ * IMPORTANT: This class is not intended to be subclassed. + *

+ * + * @see ProgressBar snippets + * @see SWT Example: ControlExample + * @see Sample code and further information + * @noextend This class is not intended to be subclassed by clients. + */ +public class ProgressBar extends Control { + static final int DELAY = 100; + static final int TIMER_ID = 100; + static final int MINIMUM_WIDTH = 100; + static final long ProgressBarProc; + static final TCHAR ProgressBarClass = new TCHAR (0, OS.PROGRESS_CLASS, true); + static { + WNDCLASS lpWndClass = new WNDCLASS (); + OS.GetClassInfo (0, ProgressBarClass, lpWndClass); + ProgressBarProc = lpWndClass.lpfnWndProc; + /* + * Feature in Windows. The progress bar window class + * does not include CS_DBLCLKS. This means that these + * controls will not get double click messages such as + * WM_LBUTTONDBLCLK. The fix is to register a new + * window class with CS_DBLCLKS. + * + * NOTE: Screen readers look for the exact class name + * of the control in order to provide the correct kind + * of assistance. Therefore, it is critical that the + * new window class have the same name. It is possible + * to register a local window class with the same name + * as a global class. Since bits that affect the class + * are being changed, it is possible that other native + * code, other than SWT, could create a control with + * this class name, and fail unexpectedly. + */ + lpWndClass.hInstance = OS.GetModuleHandle (null); + lpWndClass.style &= ~OS.CS_GLOBALCLASS; + lpWndClass.style |= OS.CS_DBLCLKS; + OS.RegisterClass (ProgressBarClass, lpWndClass); + } + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + *

+ * The style value is either one of the style constants defined in + * class SWT which is applicable to instances of this + * class, or must be built by bitwise OR'ing together + * (that is, using the int "|" operator) two or more + * of those SWT style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + *

+ * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException + * @exception SWTException + * + * @see SWT#SMOOTH + * @see SWT#HORIZONTAL + * @see SWT#VERTICAL + * @see SWT#INDETERMINATE + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public ProgressBar (Composite parent, int style) { + super (parent, checkStyle (style)); +} + +@Override +long callWindowProc (long hwnd, int msg, long wParam, long lParam) { + if (handle == 0) return 0; + return OS.CallWindowProc (ProgressBarProc, hwnd, msg, wParam, lParam); +} + +static int checkStyle (int style) { + style |= SWT.NO_FOCUS; + return checkBits (style, SWT.HORIZONTAL, SWT.VERTICAL, 0, 0, 0, 0); +} + +@Override Point computeSizeInPixels (int wHint, int hHint, boolean changed) { + checkWidget (); + int border = getBorderWidthInPixels (); + int width = border * 2, height = border * 2; + if ((style & SWT.HORIZONTAL) != 0) { + width += OS.GetSystemMetrics (OS.SM_CXHSCROLL) * 10; + height += OS.GetSystemMetrics (OS.SM_CYHSCROLL); + } else { + width += OS.GetSystemMetrics (OS.SM_CXVSCROLL); + height += OS.GetSystemMetrics (OS.SM_CYVSCROLL) * 10; + } + if (wHint != SWT.DEFAULT) width = wHint + (border * 2); + if (hHint != SWT.DEFAULT) height = hHint + (border * 2); + return new Point (width, height); +} + +@Override +void createHandle () { + super.createHandle (); + startTimer (); +} + +@Override +int defaultForeground () { + return OS.GetSysColor (OS.COLOR_HIGHLIGHT); +} + +/** + * Returns the maximum value which the receiver will allow. + * + * @return the maximum + * + * @exception SWTException + */ +public int getMaximum () { + checkWidget (); + return (int)OS.SendMessage (handle, OS.PBM_GETRANGE, 0, 0); +} + +/** + * Returns the minimum value which the receiver will allow. + * + * @return the minimum + * + * @exception SWTException + */ +public int getMinimum () { + checkWidget (); + return (int)OS.SendMessage (handle, OS.PBM_GETRANGE, 1, 0); +} + +/** + * Returns the single 'selection' that is the receiver's position. + * + * @return the selection + * + * @exception SWTException + */ +public int getSelection () { + checkWidget (); + return (int)OS.SendMessage (handle, OS.PBM_GETPOS, 0, 0); +} + +/** + * Returns the state of the receiver. The value will be one of: + * + * + * @return the state + * + * @exception SWTException + * + * @since 3.4 + */ +public int getState () { + checkWidget (); + int state = (int)OS.SendMessage (handle, OS.PBM_GETSTATE, 0, 0); + switch (state) { + case OS.PBST_NORMAL: return SWT.NORMAL; + case OS.PBST_ERROR: return SWT.ERROR; + case OS.PBST_PAUSED: return SWT.PAUSED; + } + return SWT.NORMAL; +} + +@Override +void releaseWidget () { + super.releaseWidget (); + stopTimer (); +} + +void startTimer () { + if ((style & SWT.INDETERMINATE) != 0) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.PBS_MARQUEE) == 0) { + OS.SetTimer (handle, TIMER_ID, DELAY, 0); + } else { + OS.SendMessage (handle, OS.PBM_SETMARQUEE, 1, DELAY); + } + } +} + +void stopTimer () { + if ((style & SWT.INDETERMINATE) != 0) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.PBS_MARQUEE) == 0) { + OS.KillTimer (handle, TIMER_ID); + } else { + OS.SendMessage (handle, OS.PBM_SETMARQUEE, 0, 0); + } + } +} + +@Override +void setBackgroundPixel (int pixel) { + if (pixel == -1) pixel = OS.CLR_DEFAULT; + OS.SendMessage (handle, OS.PBM_SETBKCOLOR, 0, pixel); +} + +@Override +void setForegroundPixel (int pixel) { + if (pixel == -1) pixel = OS.CLR_DEFAULT; + OS.SendMessage (handle, OS.PBM_SETBARCOLOR, 0, pixel); +} + +/** + * Sets the maximum value that the receiver will allow. This new + * value will be ignored if it is not greater than the receiver's current + * minimum value. If the new maximum is applied then the receiver's + * selection value will be adjusted if necessary to fall within its new range. + * + * @param value the new maximum, which must be greater than the current minimum + * + * @exception SWTException + */ +public void setMaximum (int value) { + checkWidget (); + int minimum = (int)OS.SendMessage (handle, OS.PBM_GETRANGE, 1, 0); + if (0 <= minimum && minimum < value) { + OS.SendMessage (handle, OS.PBM_SETRANGE32, minimum, value); + } +} + +/** + * Sets the minimum value that the receiver will allow. This new + * value will be ignored if it is negative or is not less than the receiver's + * current maximum value. If the new minimum is applied then the receiver's + * selection value will be adjusted if necessary to fall within its new range. + * + * @param value the new minimum, which must be nonnegative and less than the current maximum + * + * @exception SWTException + */ +public void setMinimum (int value) { + checkWidget (); + int maximum = (int)OS.SendMessage (handle, OS.PBM_GETRANGE, 0, 0); + if (0 <= value && value < maximum) { + OS.SendMessage (handle, OS.PBM_SETRANGE32, value, maximum); + } +} + +/** + * Sets the single 'selection' that is the receiver's + * position to the argument which must be greater than or equal + * to zero. + * + * @param value the new selection (must be zero or greater) + * + * @exception SWTException + */ +public void setSelection (int value) { + checkWidget (); + OS.SendMessage (handle, OS.PBM_SETPOS, value, 0); + + /* + * Bug in Vista. For some reason, when the progress bar is not in + * a normal state, it shows the selection of previous call to + * PBM_SETPOS. This is undocumented. The fix is to call PBM_SETPOS + * a second time. + */ + long state = OS.SendMessage (handle, OS.PBM_GETSTATE, 0, 0); + if (state != OS.PBST_NORMAL) { + OS.SendMessage (handle, OS.PBM_SETPOS, value, 0); + } +} + +/** + * Sets the state of the receiver. The state must be one of these values: + * + *

+ * Note: This operation is a hint and is not supported on + * platforms that do not have this concept. + *

+ * + * @param state the new state + * + * @exception SWTException + * + * @since 3.4 + */ +public void setState (int state) { + checkWidget (); + switch (state) { + case SWT.NORMAL: + OS.SendMessage (handle, OS.PBM_SETSTATE, OS.PBST_NORMAL, 0); + break; + case SWT.ERROR: + OS.SendMessage (handle, OS.PBM_SETSTATE, OS.PBST_ERROR, 0); + break; + case SWT.PAUSED: + OS.SendMessage (handle, OS.PBM_SETSTATE, OS.PBST_PAUSED, 0); + break; + } +} + +@Override +int widgetStyle () { + int bits = super.widgetStyle (); + if ((style & SWT.SMOOTH) != 0) bits |= OS.PBS_SMOOTH; + if ((style & SWT.VERTICAL) != 0) bits |= OS.PBS_VERTICAL; + if ((style & SWT.INDETERMINATE) != 0) bits |= OS.PBS_MARQUEE; + return bits; +} + +@Override +TCHAR windowClass () { + return ProgressBarClass; +} + +@Override +long windowProc () { + return ProgressBarProc; +} + +@Override +LRESULT WM_GETDLGCODE (long wParam, long lParam) { + LRESULT result = super.WM_GETDLGCODE (wParam, lParam); + if (result != null) return result; + /* + * Feature in Windows. The progress bar does + * not implement WM_GETDLGCODE. As a result, + * a progress bar takes focus and takes part + * in tab traversal. This behavior, while + * unspecified, is unwanted. The fix is to + * implement WM_GETDLGCODE to behave like a + * STATIC control. + */ + return new LRESULT (OS.DLGC_STATIC); +} + +@Override +LRESULT WM_SIZE (long wParam, long lParam) { + LRESULT result = super.WM_SIZE (wParam, lParam); + if (result != null) return result; + /* + * Feature in Windows. When a progress bar with the style + * PBS_MARQUEE becomes too small, the animation (currently + * a small bar moving from right to left) does not have + * enough space to draw. The result is that the progress + * bar does not appear to be moving. The fix is to detect + * this case, clear the PBS_MARQUEE style and emulate the + * animation using PBM_STEPIT. + * + * NOTE: This only happens on Window XP. + */ + if ((style & SWT.INDETERMINATE) != 0) { + if (!OS.IsAppThemed()) { + forceResize (); + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + int oldBits = OS.GetWindowLong (handle, OS.GWL_STYLE); + int newBits = oldBits; + if (rect.right - rect.left < MINIMUM_WIDTH) { + newBits &= ~OS.PBS_MARQUEE; + } else { + newBits |= OS.PBS_MARQUEE; + } + if (newBits != oldBits) { + stopTimer (); + OS.SetWindowLong (handle, OS.GWL_STYLE, newBits); + startTimer (); + } + } + } + return result; +} + +@Override +LRESULT WM_TIMER (long wParam, long lParam) { + LRESULT result = super.WM_TIMER (wParam, lParam); + if (result != null) return result; + if ((style & SWT.INDETERMINATE) != 0) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.PBS_MARQUEE) == 0) { + if (wParam == TIMER_ID) { + OS.SendMessage (handle, OS.PBM_STEPIT, 0, 0); + } + } + } + return result; +} + +}