XGradientZoneBar - an MFC color gradient indicator bar






4.95/5 (55 votes)
XGradientZoneBar displays an indicator bar that allows you to specify multiple zones that are filled with a color gradient, and includes APIs to set the bar orientation, font, and tick marks.
![]() Winner April 2008 Monthly Competition |
Introduction
Let me start by saying that XGradientZoneBar is not a progress control. It is an indicator control, like those used in real-time displays of levels, etc.:
XGradientZoneBar Features and Behaviors
Except for tooltips, there is no user interaction with XGradientZoneBar control. The demo app reveals most of the XGradientZoneBar features:
To get an idea of what XGradientZoneBar can be used for, click on Demo button:
XGradientZoneBar API
Function | Description |
---|---|
COLORREF GetBackgroundColor() | Retrieves background color |
CXGradientZoneBar& SetBackgroundColor(COLORREF cr, BOOL bRedraw = TRUE) | Sets background color |
void GetBarInfo(XGRADIENT_ZONE_BAR_INFO *pXZBI); | Retrieves XGRADIENT_ZONE_BAR_INFO struct for bar |
CXGradientZoneBar& SetBarInfo(XGRADIENT_ZONE_BAR_INFO *pXZBI); | Sets bar options via XGRADIENT_ZONE_BAR_INFO struct |
ORIENTATION GetBarOrientation() | Retrieves bar orientation (HORIZONTAL or VERTICAL) |
CXGradientZoneBar& SetBarOrientation(ORIENTATION eOrientation, BOOL bRedraw = TRUE) | Sets bar orientation (HORIZONTAL or VERTICAL) |
BOOL GetBold(); | Retrieves bold setting |
CXGradientZoneBar& SetBold(BOOL bBold, BOOL bRedraw = TRUE); | Sets bold font |
CString GetFontFaceName(); | Retrieves font face name |
int GetFontPointSize(); | Retrieves font point size |
CXGradientZoneBar& SetFont(LPCTSTR lpszFaceName, int nPointSize, BOOL bRedraw = TRUE); | Sets font face name and point size |
BOOL GetFont(LOGFONT *pLF); | Retrieves LOGFONT struct for font |
CXGradientZoneBar& SetFont(LOGFONT * pLogFont, BOOL bRedraw = TRUE); | Sets font via LOGFONT struct |
CFont* GetFont() | Retrieves pointer to CFont member variable |
CXGradientZoneBar& SetFont(CFont *pFont, BOOL bRedraw = TRUE); | Sets font via CFont object |
int GetMaxPercent() | Retrieves max percent fill |
CXGradientZoneBar& SetMaxPercent(int nMaxPercent, BOOL bRedraw = TRUE) | Set percent of gradient fill to show; remainder will be filled with background color |
CString GetText() | Retrieves bar text |
CXGradientZoneBar& SetText(LPCTSTR lpszText, BOOL bRedraw = TRUE) | Sets bar text |
TEXTALIGNHORIZONTAL GetTextAlignHorizontal() | Retrieves bar text horizontal alignment (LEFT, RIGHT, CENTER) |
CXGradientZoneBar& SetTextAlignHorizontal(TEXTALIGNHORIZONTAL eAlign, BOOL bRedraw = TRUE) | Sets bar text horizontal alignment (LEFT, RIGHT, CENTER) |
TEXTALIGNVERTICAL GetTextAlignVertical() | Retrieves bar text vertical alignment (TOP, BOTTOM, VCENTER) |
CXGradientZoneBar& SetTextAlignVertical(TEXTALIGNVERTICAL eAlign, BOOL bRedraw = TRUE) | Sets bar text vertical alignment (TOP, BOTTOM, VCENTER) |
COLORREF GetTextColor() | Retrieves text color |
CXGradientZoneBar& SetTextColor(COLORREF cr, BOOL bRedraw = TRUE) | Set text color |
UINT GetTextOrientation() | Retrieves text orientation (0, 90 or 270) |
CXGradientZoneBar& SetTextOrientation(UINT nTextOrientation, BOOL bRedraw = TRUE); | Sets text orientation (0, 90 or 270) |
COLORREF GetTickColor() | Retrieves tick color |
CXGradientZoneBar& SetTickColor(COLORREF cr, BOOL bRedraw = TRUE) | Sets tick color |
UINT GetTicksPerZone() | Retrives number of ticks per zone |
CXGradientZoneBar& SetTicksPerZone(UINT nTicksPerZone, BOOL bRedraw = TRUE) | Sets number of ticks per zone |
void GetTickSizes(UINT& nUnitTick, UINT& n10thTick) | Retrieves tick sizes |
CXGradientZoneBar& SetTickSizes(UINT nUnitTick, UINT n10thTick, BOOL bRedraw = TRUE) | Sets tick sizes |
TICKMARKTYPE GetTickType() | Retrieves tick type (NOTICKMARKS, TOP_LEFT, BOTTOM_RIGHT, BOTH, BOX) |
CXGradientZoneBar& SetTickType(TICKMARKTYPE eTickMarkType, BOOL bRedraw = TRUE) | Sets tick type (NOTICKMARKS, TOP_LEFT, BOTTOM_RIGHT, BOTH, BOX) |
CString GetToolTipText() | Retrieves tooltip text |
CXGradientZoneBar& SetToolTipText(LPCTSTR lpszText, BOOL bRedraw = TRUE) | Sets tooltip text |
TOOLTIPTYPE GetToolTipType() | Retrieves tooltip type (NOTOOLTIP, TEXT_TOOLTIP, PERCENT_TOOLTIP, TEXT_PERCENT_TOOLTIP, PERCENT_TEXT_TOOLTIP) |
CXGradientZoneBar& SetToolTipType(TOOLTIPTYPE eType, BOOL bRedraw = TRUE) | Sets tooltip type (NOTOOLTIP, TEXT_TOOLTIP, PERCENT_TOOLTIP, TEXT_PERCENT_TOOLTIP, PERCENT_TEXT_TOOLTIP) |
CXGradientZoneBar& SetZones(UINT nZones, XGRADIENT_ZONE *pZones, BOOL bRedraw = TRUE); | Sets gradient bar zones |
Tooltip Formats
There are five options for XGradientZoneBar tooltip format (including no tooltip):
Text![]() |
Percent![]() |
Text + Percent![]() |
Percent + Text![]() |
How to use
The following steps assume you want to add XGradientZoneBar to a dialog. Steps would be similar forCFormView
or
CPropertyPage
.
Step 1 - Add Files
To integrate CXGradientZoneBar
into your app, you first need to
add following files to your project:
- XGradientZoneBar.cpp
- XGradientZoneBar.h
Step 2 - Add Placeholder Rect to Dialog Resource
Next add a STATIC or other control to dialog resource, where you want the XGradientZoneBar to be displayed. The dialog for demo app looks like this:
Note that this step is not required, if you have some other way to specify where XGradientZoneBar should be displayed.
Step 3 - Create the Control
You need to do two things here: first, add#include
statement to dialog class header file:
#include "XGradientZoneBar.h"and insert variable that looks like:
CXGradientZoneBar m_GradientZoneBar;Second, add code to
OnInitDialog()
function:
CRect rect; GetDlgItem(IDC_STATIC_BAR1)->GetWindowRect(&rect); ScreenToClient(&rect); GetDlgItem(IDC_STATIC_BAR1)->ShowWindow(SW_HIDE); VERIFY(m_GradientZoneBar.Create(AfxGetInstanceHandle(), 0, WS_CHILD | WS_VISIBLE, rect, this, IDC_BAR1));
Step 4 - Set XGradientZoneBar Options
According to your app's requirements, you will probably want to set one or more XGradientZoneBar options. Here are options set for Bar1 in demo app:m_Bar1.SetBarOrientation(CXGradientZoneBar::VERTICAL, FALSE) .SetText(_T("Bar1"), FALSE) .SetTextAlignVertical(CXGradientZoneBar::TOP) .SetTextColor(RGB(0,255,0)) .SetFont(_T("Times New Roman"), 18, FALSE) .SetTextOrientation(90, FALSE) .SetZones(_countof(GreenToRed), GreenToRed, FALSE) .SetTickType(CXGradientZoneBar::TOP_LEFT, FALSE) .SetToolTipText(_T("This is Bar1"), FALSE) .SetToolTipType(CXGradientZoneBar::TEXT_TOOLTIP, FALSE) .SetBackgroundColor(RGB(0,0,0)) .SetMaxPercent(50);
References
Here are links to my articles on CodeProject, which I have used in demo app:
- XButtonXP - an XP-aware pushbutton that can also toggle and display an icon
- XColorPickerXP - an MFC color picker control with themed look
- XColorStatic - a colorizing static control
- XHyperLink - yet another hyperlink control
Revision History
Version 1.0 - 2008 April 24
- Initial public release
Usage
This software is released into the public domain. You are free to use it in any way you like, except that you may not sell this source code. If you modify it or extend it, please to consider posting new code here for everyone to share. This software is provided "as is" with no expressed or implied warranty. I accept no liability for any damage or loss of business that this software may cause.