1192 lines
34 KiB
C
1192 lines
34 KiB
C
/*
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==============================================================================
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Application:
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Microsoft Windows NT (TM) Performance Monitor
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File:
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legend.c - legend window routines.
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This file contains code creating the legend window, which is
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a child of the graph windows. The legend window displays a
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legend line for each line in the associated graph. It also
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includes an area called the label, which are headers for those
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lines.
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Copyright 1992, Microsoft Corporation. All Rights Reserved.
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==============================================================================
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*/
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//==========================================================================//
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// Includes //
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//==========================================================================//
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#include <stdio.h> // for sprintf
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#include "setedit.h"
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#include "legend.h" // external declarations for this file
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#include "owndraw.h"
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#include "perfmops.h"
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#include "grafdata.h" // for EditChart
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#include "pmemory.h" // for MemoryXXX (mallloc-type) routines
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#include "utils.h"
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// #include "valuebar.h" // for StatusTimer
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#define eScaleValueSpace TEXT(">9999999999.0")
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//==========================================================================//
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// Constants //
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//==========================================================================//
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#define dwGraphLegendClassStyle (CS_HREDRAW | CS_VREDRAW)
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#define iGraphLegendClassExtra (0)
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#define iGraphLegendWindowExtra (sizeof (PLEGEND))
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#define dwGraphLegendWindowStyle (WS_CHILD | WS_VISIBLE)
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#define xLegendBorderWidth (xDlgBorderWidth)
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#define yLegendBorderHeight (yDlgBorderHeight)
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#define iLabelLen 30
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#define iLegendColMax 1000
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#define LEFTORIENTATION 1
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#define CENTERORIENTATION 2
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#define RIGHTORIENTATION 3
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#define LegendColorCol 0
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#define LegendScaleCol 1
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#define LegendCounterCol 2
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#define LegendInstanceCol 3
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#define LegendParentCol 4
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#define LegendObjectCol 5
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#define LegendSystemCol 6
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#define iLegendNumCols 7
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#define iLegendMaxVisibleItems 8
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#define dwGraphLegendItemsWindowClass TEXT("ListBox")
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#define dwGraphLegendItemsWindowStyle \
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(LBS_NOTIFY | LBS_NOINTEGRALHEIGHT | LBS_OWNERDRAWFIXED | \
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WS_VISIBLE | WS_CHILD | WS_VSCROLL)
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//==========================================================================//
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// Typedefs //
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//==========================================================================//
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typedef struct LEGENDCOLSTRUCT {
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TCHAR szLabel [iLabelLen] ;
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int xMinWidth ;
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int xMaxWidth ;
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int xWidth ;
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int xPos ;
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int iOrientation ;
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} LEGENDCOL ;
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typedef LEGENDCOL *PLEGENDCOL ;
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typedef struct LEGENDTRUCT {
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HWND hWndItems ;
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HFONT hFontItems ;
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HFONT hFontLabels ;
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int xMinWidth ;
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int yLabelHeight ;
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int yItemHeight ;
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int iNumItemsVisible ;
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LEGENDCOL aCols [iLegendNumCols] ;
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int iLineType ;
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PLINE pCurrentLine ; // current selected line
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} LEGEND ;
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typedef LEGEND *PLEGEND ;
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//==========================================================================//
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// Macros //
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//==========================================================================//
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#define LabelTopMargin() (2)
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#define LegendLeftMargin() (3 + ThreeDPad)
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#define LegendItemTopMargin() (yBorderHeight)
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#define IsLegendLabelVisible() (TRUE)
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#define ColCanGrow(pCol) \
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(pCol->xMaxWidth > pCol->xWidth)
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#define LegendHorzMargin() (3)
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//==========================================================================//
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// Local Data //
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//==========================================================================//
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// LEGEND Legend ;
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PLEGEND pGraphLegendData ;
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#define LegendData(hWnd) \
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(pGraphLegendData )
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//==========================================================================//
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// Local Functions //
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//==========================================================================//
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void LegendSetCurrentLine (PLEGEND pLegend, INT_PTR iIndex)
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{
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pLegend->pCurrentLine =
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(PLINESTRUCT) LBData (pLegend->hWndItems, iIndex) ;
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if (pLegend->pCurrentLine == (PLINESTRUCT) LB_ERR) {
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pLegend->pCurrentLine = NULL ;
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}
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} // LegendSetCurrentLine
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PLEGEND AllocateLegendData (HWND hWnd, BOOL bChartLegend)
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{
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PLEGEND pLegend ;
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pLegend = MemoryAllocate (sizeof (LEGEND)) ;
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// SetWindowLong (hWnd, 0, (LONG) pLegend) ;
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if (bChartLegend) {
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hWndGraphLegend = hWnd ;
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pGraphLegendData = pLegend ;
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}
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return (pLegend) ;
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}
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void DrawLegendLabel (PLEGEND pLegend,
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HDC hDC,
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HWND hWnd)
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{ // DrawLegendLabel
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int i ;
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int xPos ;
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RECT rect ;
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RECT rectLB ;
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INT LocalThreeDPad = ThreeDPad - 1 ;
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SetBkColor (hDC, crLightGray) ;
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SelectFont (hDC, pLegend->hFontLabels) ;
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GetClientRect (hWnd, &rect) ;
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// Fill (hDC, crLightGray, &rect) ;
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ExtTextOut (hDC, rect.left, rect.top,
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ETO_OPAQUE, &(rect), NULL, 0, NULL ) ;
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GetWindowRect (pLegend->hWndItems, &rectLB) ;
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ScreenRectToClient (hWnd, &rectLB) ;
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ThreeDConcave1 (hDC,
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rectLB.left - LocalThreeDPad,
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rectLB.top - LocalThreeDPad,
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rectLB.right + LocalThreeDPad,
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rectLB.bottom + LocalThreeDPad) ;
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for (i = 0 ;
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i < iLegendNumCols ;
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i++) { // for
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rect.left = pLegend->aCols[i].xPos ;
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rect.top = yBorderHeight ;
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rect.right = rect.left + pLegend->aCols[i].xWidth - LegendHorzMargin () ;
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rect.bottom = pLegend->yLabelHeight ;
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switch (pLegend->aCols[i].iOrientation) { // switch
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case LEFTORIENTATION:
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SetTextAlign (hDC, TA_LEFT) ;
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xPos = rect.left ;
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break ;
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case CENTERORIENTATION:
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SetTextAlign (hDC, TA_CENTER) ;
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xPos = (rect.left + rect.right) / 2 ;
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break ;
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case RIGHTORIENTATION:
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SetTextAlign (hDC, TA_RIGHT) ;
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xPos = rect.right ;
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break ;
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default:
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xPos = rect.left ;
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break ;
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} // switch
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ExtTextOut (hDC,
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xPos, rect.top,
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ETO_OPAQUE,
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&rect,
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pLegend->aCols[i].szLabel,
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lstrlen (pLegend->aCols[i].szLabel),
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NULL) ;
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} // for
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} // DrawLegendLabel
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void DrawColorCol (PLEGEND pLegend,
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PLINE pLine,
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int iCol,
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HDC hDC,
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int yPos)
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/*
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Effect: Draw the "color" column of a legend entry. The color
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column displays a small sample of the line drawing.
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For charts, the sample is a line of the correct style,
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color, and width. Since we are using wide lines,
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the round endcaps of the lines will breach the column.
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Therefore we need to set the clip region. We could
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remove this clipping if we find a way to change the
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end cap design.
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*/
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{ // DrawColorCol
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HBRUSH hBrush, hBrushPrevious ;
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RECT rect ;
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int yMiddle ;
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int iCircle ;
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rect.left = pLegend->aCols[iCol].xPos - LegendLeftMargin () + 2 ;
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rect.top = yPos + 1 ;
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rect.right = rect.left + pLegend->aCols[iCol].xWidth - LegendHorzMargin () ;
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rect.bottom = yPos + pLegend->yItemHeight - 1 ;
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yMiddle = rect.top + (rect.bottom - rect.top) / 2 ;
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iCircle = rect.bottom - rect.top - 2 ;
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switch (pLegend->iLineType) { // switch
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case LineTypeChart:
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if (pLine->Visual.iWidth == 1) {
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// simple case with thin pen
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hBrush = SelectBrush (hDC, hbLightGray) ;
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Rectangle (hDC, rect.left, rect.top, rect.right, rect.bottom) ;
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HLine (hDC, pLine->hPen,
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rect.left + 1, rect.right - 1, yMiddle) ;
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SelectBrush (hDC, hBrush) ;
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} else {
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// thicker pen width, have to set ClipRect so
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// it will not draw otherside the rect.
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SaveDC (hDC) ;
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hBrush = SelectBrush (hDC, hbLightGray) ;
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Rectangle (hDC, rect.left, rect.top, rect.right, rect.bottom) ;
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IntersectClipRect (hDC,
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rect.left + 1,
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rect.top + 1,
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rect.right - 1,
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rect.bottom - 1) ;
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HLine (hDC, pLine->hPen,
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rect.left + 1, rect.right - 1, yMiddle) ;
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SelectBrush (hDC, hBrush) ;
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RestoreDC (hDC, -1) ;
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}
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break ;
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} // switch
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} // DrawColorCol
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void DrawLegendCol (PLEGEND pLegend,
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int iCol,
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HDC hDC,
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int yPos,
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LPTSTR lpszValue)
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/*
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Effect: Draw the value lpszValue for the column iCol on hDC.
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Assert: The foreground and background text colors of hDC are
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properly set.
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*/
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{ // DrawLegendCol
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RECT rect ;
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int xPos ;
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rect.left = pLegend->aCols[iCol].xPos - LegendLeftMargin () ;
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rect.top = yPos ;
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rect.right = rect.left + pLegend->aCols[iCol].xWidth - LegendHorzMargin () ;
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rect.bottom = yPos + pLegend->yItemHeight ;
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// SetTextAlign (hDC, TA_TOP) ;
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switch (pLegend->aCols[iCol].iOrientation) { // switch
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case LEFTORIENTATION:
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SetTextAlign (hDC, TA_LEFT) ;
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xPos = rect.left ;
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break ;
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case CENTERORIENTATION:
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SetTextAlign (hDC, TA_CENTER) ;
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xPos = (rect.left + rect.right) / 2 ;
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break ;
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case RIGHTORIENTATION:
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SetTextAlign (hDC, TA_RIGHT) ;
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xPos = rect.right ;
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break ;
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default:
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xPos = rect.left ;
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break ;
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} // switch
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ExtTextOut (hDC,
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xPos, rect.top + LegendItemTopMargin (),
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ETO_OPAQUE | ETO_CLIPPED,
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&rect,
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lpszValue,
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lstrlen (lpszValue),
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NULL) ;
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} // DrawLegendCol
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void DrawLegendItem (PLEGEND pLegend,
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PLINESTRUCT pLine,
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int yPos,
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HDC hDC)
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{
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TCHAR szValue [256] ;
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TCHAR szInstance [256] ;
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TCHAR szParent [256] ;
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TCHAR szNoName[4] ;
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szNoName[0] = szNoName[1] = szNoName[2] = TEXT('-') ;
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szNoName[3] = TEXT('\0') ;
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//=============================//
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// Determine Instance, Parent //
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//=============================//
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// It's possible that there will be no instance, therefore
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// the lnInstanceName would be NULL.
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if (pLine->lnObject.NumInstances > 0) {
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// Test for the parent object instance name title index.
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// If there is one, it implies that there will be a valid
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// Parent Object Name and a valid Parent Object Instance Name.
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// If the Parent Object title index is 0 then
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// just display the instance name.
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lstrcpy (szInstance, pLine->lnInstanceName) ;
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if ((pLine->bUserEdit ||
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pLine->lnInstanceDef.ParentObjectTitleIndex) &&
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pLine->lnPINName) {
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// Get the Parent Object Name.
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lstrcpy (szParent, pLine->lnPINName) ;
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} else {
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lstrcpy (szParent, szNoName) ;
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}
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} else {
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lstrcpy (szInstance, szNoName) ;
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lstrcpy (szParent, szNoName) ;
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}
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//=============================//
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// Draw Color //
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//=============================//
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DrawColorCol (pLegend, pLine, LegendColorCol, hDC, yPos) ;
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//=============================//
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// Draw Scale/Value //
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//=============================//
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if (pLegend->iLineType == LineTypeChart) {
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if (pLine->eScale < (FLOAT) 1.0) {
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TSPRINTF (szValue, TEXT("%7.7f"), pLine->eScale) ;
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} else {
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TSPRINTF (szValue, TEXT("%10.3f"), pLine->eScale) ;
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}
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ConvertDecimalPoint (szValue);
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}
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SetTextAlign (hDC, TA_TOP) ;
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DrawLegendCol (pLegend, LegendScaleCol,
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hDC, yPos, szValue) ;
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//=============================//
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// Draw Counter //
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//=============================//
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DrawLegendCol (pLegend, LegendCounterCol,
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hDC, yPos, pLine->lnCounterName) ;
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//=============================//
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// Draw Instance //
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//=============================//
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DrawLegendCol (pLegend, LegendInstanceCol,
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hDC, yPos, szInstance) ;
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//=============================//
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// Draw Parent //
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//=============================//
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DrawLegendCol (pLegend, LegendParentCol,
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hDC, yPos, szParent) ;
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//=============================//
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// Draw Object //
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//=============================//
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DrawLegendCol (pLegend, LegendObjectCol,
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hDC, yPos, pLine->lnObjectName) ;
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//=============================//
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// Draw System //
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//=============================//
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DrawLegendCol (pLegend, LegendSystemCol,
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hDC, yPos, pLine->lnSystemName) ;
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}
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//==========================================================================//
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// Message Handlers //
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//==========================================================================//
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BOOL OnLegendCreate (HWND hWnd, LPCREATESTRUCT lpCS)
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{
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PLEGEND pLegend ;
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HDC hDC ;
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int iCol ;
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BOOL bChartLegend ;
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bChartLegend = (lpCS->lpCreateParams) == (LPVOID) TRUE ;
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pLegend = AllocateLegendData (hWnd, bChartLegend) ;
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if (!pLegend)
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return (FALSE) ;
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pLegend->iLineType = LineTypeChart ;
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pLegend->hFontItems = hFontScales ;
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pLegend->hFontLabels = hFontScalesBold ;
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hDC = GetDC (hWnd) ;
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//=============================//
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// Load Labels //
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//=============================//
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StringLoad (IDS_LABELCOLOR, pLegend->aCols[LegendColorCol].szLabel) ;
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if (pLegend->iLineType == LineTypeChart)
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StringLoad (IDS_LABELSCALE,
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pLegend->aCols[LegendScaleCol].szLabel) ;
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else
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StringLoad (IDS_LABELVALUE,
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pLegend->aCols[LegendScaleCol].szLabel) ;
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StringLoad (IDS_LABELCOUNTER, pLegend->aCols[LegendCounterCol].szLabel) ;
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StringLoad (IDS_LABELINSTANCE, pLegend->aCols[LegendInstanceCol].szLabel) ;
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StringLoad (IDS_LABELPARENT, pLegend->aCols[LegendParentCol].szLabel) ;
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StringLoad (IDS_LABELOBJECT, pLegend->aCols[LegendObjectCol].szLabel) ;
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StringLoad (IDS_LABELSYSTEM, pLegend->aCols[LegendSystemCol].szLabel) ;
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//=============================//
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// Label dimensions //
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//=============================//
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SelectFont (hDC, pLegend->hFontLabels) ;
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pLegend->yLabelHeight = FontHeight (hDC, TRUE) + 2 * LabelTopMargin () ;
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//=============================//
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// Column dimensions //
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//=============================//
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for (iCol = 0 ;
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iCol < iLegendNumCols ;
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iCol++) { // for
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pLegend->aCols[iCol].iOrientation = LEFTORIENTATION ;
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pLegend->aCols[iCol].xMinWidth =
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TextWidth (hDC, pLegend->aCols[iCol].szLabel) + LegendHorzMargin () ;
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} // for
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SelectFont (hDC, pLegend->hFontItems) ;
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pLegend->yItemHeight = FontHeight (hDC, TRUE) + 2 * LegendItemTopMargin () ;
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pLegend->aCols[LegendColorCol].xMaxWidth = max (3 * xScrollWidth,
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pLegend->aCols[LegendColorCol].xMinWidth) ;
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pLegend->aCols[LegendScaleCol].xMaxWidth = TextWidth (hDC, eScaleValueSpace) ;
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pLegend->aCols[LegendCounterCol].xMaxWidth = iLegendColMax ;
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pLegend->aCols[LegendInstanceCol].xMaxWidth = iLegendColMax ;
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pLegend->aCols[LegendParentCol].xMaxWidth = iLegendColMax ;
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pLegend->aCols[LegendObjectCol].xMaxWidth = iLegendColMax ;
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pLegend->aCols[LegendSystemCol].xMaxWidth = iLegendColMax ;
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pLegend->aCols[LegendColorCol].iOrientation = LEFTORIENTATION ;
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pLegend->aCols[LegendScaleCol].iOrientation = RIGHTORIENTATION ;
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ReleaseDC (hWnd, hDC) ;
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//=============================//
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// Create Legend Items Listbox //
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//=============================//
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pLegend->hWndItems =
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CreateWindow (TEXT("ListBox"), // window class
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NULL, // window caption
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dwGraphLegendItemsWindowStyle, // window style
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0, 0, 0, 0, // window size and pos
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hWnd, // parent window
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NULL, // menu
|
|
hInstance, // program instance
|
|
(LPVOID) TRUE) ; // user-supplied data
|
|
|
|
return TRUE;
|
|
|
|
} // OnLegendCreate
|
|
|
|
|
|
void static OnSize (HWND hWnd, int xWidth, int yHeight)
|
|
/*
|
|
Effect: Perform all actions necessary when the legend window is
|
|
being resized. In particular, set the width and starting
|
|
position for each column of the legend list and labels.
|
|
|
|
Internals: What we do is determine the amount of space in the
|
|
width that is greater than the minimum, and allocate
|
|
that space among each of the columns that is willing to
|
|
be larger than minimum. If there is not enough room for
|
|
the minimum, don't bother with calculations.
|
|
*/
|
|
|
|
{ // OnSize
|
|
PLEGEND pLegend ;
|
|
PLEGENDCOL pCol ;
|
|
int xMin ;
|
|
int xSlack ;
|
|
int iColsToGrow ;
|
|
int iCol ;
|
|
|
|
pLegend = LegendData (hWnd) ;
|
|
|
|
//=============================//
|
|
// Resize Legend Items //
|
|
//=============================//
|
|
|
|
if (IsLegendLabelVisible ())
|
|
MoveWindow (pLegend->hWndItems,
|
|
LegendLeftMargin (), pLegend->yLabelHeight + ThreeDPad,
|
|
xWidth - 2 * LegendLeftMargin (),
|
|
yHeight - pLegend->yLabelHeight - yLegendBorderHeight,
|
|
TRUE) ;
|
|
else
|
|
MoveWindow (pLegend->hWndItems,
|
|
0, 0,
|
|
xWidth, yHeight,
|
|
TRUE) ;
|
|
|
|
|
|
//=============================//
|
|
// Allocate width to Columns //
|
|
//=============================//
|
|
|
|
xMin = LegendMinWidth (hWnd) ;
|
|
xSlack = max (xWidth - xMin, 0) ;
|
|
iColsToGrow = 0 ;
|
|
|
|
for (iCol = 0 ;
|
|
iCol < iLegendNumCols ;
|
|
iCol++) { // for
|
|
pCol = &(pLegend->aCols[iCol]) ;
|
|
|
|
pCol->xWidth = pCol->xMinWidth ;
|
|
if (ColCanGrow (pCol))
|
|
iColsToGrow++ ;
|
|
} // for
|
|
|
|
for (iCol = 0 ;
|
|
iCol < iLegendNumCols ;
|
|
iCol++) { // for
|
|
pCol = &(pLegend->aCols[iCol]) ;
|
|
|
|
if (ColCanGrow (pCol)) {
|
|
if ((pCol->xWidth + xSlack / iColsToGrow) >
|
|
pCol->xMaxWidth) { // if
|
|
pCol->xWidth = pCol->xMaxWidth ;
|
|
xSlack -= (pCol->xMaxWidth - pCol->xMinWidth) ;
|
|
iColsToGrow-- ;
|
|
} // if
|
|
} // if
|
|
} // for
|
|
|
|
for (iCol = 0 ;
|
|
iCol < iLegendNumCols ;
|
|
iCol++) { // for
|
|
pCol = &(pLegend->aCols[iCol]) ;
|
|
|
|
if (ColCanGrow (pCol))
|
|
pCol->xWidth += xSlack / iColsToGrow ;
|
|
} // for
|
|
|
|
if (pLegend->aCols[LegendCounterCol].xWidth <
|
|
pLegend->aCols[LegendCounterCol].xMaxWidth) {
|
|
// cut some from the other columns and give them to CounterCol
|
|
if (pLegend->aCols[LegendColorCol].xWidth - xScrollWidth >=
|
|
pLegend->aCols[LegendColorCol].xMinWidth) {
|
|
pLegend->aCols[LegendColorCol].xWidth -= xScrollWidth ;
|
|
pLegend->aCols[LegendCounterCol].xWidth += xScrollWidth ;
|
|
}
|
|
if (pLegend->aCols[LegendInstanceCol].xWidth - xScrollWidth >=
|
|
pLegend->aCols[LegendInstanceCol].xMinWidth) {
|
|
pLegend->aCols[LegendInstanceCol].xWidth -= xScrollWidth ;
|
|
pLegend->aCols[LegendCounterCol].xWidth += xScrollWidth ;
|
|
}
|
|
if (pLegend->aCols[LegendParentCol].xWidth - xScrollWidth >=
|
|
pLegend->aCols[LegendParentCol].xMinWidth) {
|
|
pLegend->aCols[LegendParentCol].xWidth -= xScrollWidth ;
|
|
pLegend->aCols[LegendCounterCol].xWidth += xScrollWidth ;
|
|
}
|
|
}
|
|
|
|
|
|
//=============================//
|
|
// Set Column positions //
|
|
//=============================//
|
|
|
|
pLegend->aCols[0].xPos = LegendLeftMargin () ;
|
|
for (iCol = 1 ;
|
|
iCol < iLegendNumCols ;
|
|
iCol++) { // for
|
|
pLegend->aCols[iCol].xPos =
|
|
pLegend->aCols[iCol - 1].xPos + pLegend->aCols[iCol - 1].xWidth ;
|
|
|
|
if (iCol == LegendCounterCol) {
|
|
// add some space between Scale/Value col & Counter col
|
|
pLegend->aCols[LegendCounterCol].xPos += LegendLeftMargin () ;
|
|
}
|
|
} // for
|
|
|
|
} // OnSize
|
|
|
|
|
|
void static OnPaint (HWND hWnd)
|
|
{ // OnPaint
|
|
PLEGEND pLegend ;
|
|
HDC hDC ;
|
|
PAINTSTRUCT ps ;
|
|
|
|
hDC = BeginPaint (hWnd, &ps) ;
|
|
|
|
if (IsLegendLabelVisible ()) {
|
|
pLegend = LegendData (hWnd) ;
|
|
DrawLegendLabel (pLegend, hDC, hWnd) ;
|
|
}
|
|
|
|
|
|
EndPaint (hWnd, &ps) ;
|
|
} // OnPaint
|
|
|
|
|
|
void OnDrawLegendItem (HWND hWnd,
|
|
LPDRAWITEMSTRUCT lpDI)
|
|
{ // OnDrawItem
|
|
HFONT hFontPrevious ;
|
|
HDC hDC ;
|
|
PLEGEND pLegend ;
|
|
PLINESTRUCT pLine ;
|
|
int iLBIndex ;
|
|
COLORREF preBkColor ;
|
|
COLORREF preTextColor ;
|
|
|
|
|
|
hDC = lpDI->hDC ;
|
|
iLBIndex = DIIndex (lpDI) ;
|
|
|
|
pLegend = LegendData (hWnd) ;
|
|
|
|
if (iLBIndex == -1)
|
|
pLine = NULL ;
|
|
else
|
|
pLine = (PLINESTRUCT) LBData (pLegend->hWndItems, iLBIndex) ;
|
|
|
|
//=============================//
|
|
// Set DC attributes //
|
|
//=============================//
|
|
|
|
|
|
if (DISelected (lpDI)) { // if
|
|
preTextColor = SetTextColor (hDC, GetSysColor (COLOR_HIGHLIGHTTEXT)) ;
|
|
preBkColor = SetBkColor (hDC, GetSysColor (COLOR_HIGHLIGHT)) ;
|
|
} // if
|
|
ExtTextOut (hDC, lpDI->rcItem.left, lpDI->rcItem.top,
|
|
ETO_OPAQUE, &(lpDI->rcItem), NULL, 0, NULL ) ;
|
|
|
|
|
|
//=============================//
|
|
// Draw Legend Item //
|
|
//=============================//
|
|
|
|
hFontPrevious = SelectFont (hDC, pLegend->hFontItems) ;
|
|
if (pLine)
|
|
DrawLegendItem (pLegend, pLine, lpDI->rcItem.top, hDC) ;
|
|
SelectFont (hDC, hFontPrevious) ;
|
|
|
|
//=============================//
|
|
// Draw Focus //
|
|
//=============================//
|
|
|
|
if (DIFocus (lpDI))
|
|
DrawFocusRect (hDC, &(lpDI->rcItem)) ;
|
|
|
|
|
|
if (DISelected (lpDI)) { // if
|
|
preTextColor = SetTextColor (hDC, preTextColor) ;
|
|
preBkColor = SetBkColor (hDC, preBkColor) ;
|
|
} // if
|
|
} // OnDrawItem
|
|
|
|
|
|
void static OnMeasureItem (HWND hWnd,
|
|
LPMEASUREITEMSTRUCT lpMI)
|
|
{ // OnMeasureItem
|
|
PLEGEND pLegend ;
|
|
|
|
pLegend = LegendData (hWnd) ;
|
|
lpMI->itemHeight = pLegend->yItemHeight ;
|
|
} // OnMeasureItem
|
|
|
|
|
|
void static OnDestroy (HWND hWnd)
|
|
{
|
|
PLEGEND pLegend ;
|
|
|
|
pLegend = LegendData (hWnd) ;
|
|
MemoryFree (pLegend) ;
|
|
} // OnDestroy
|
|
|
|
|
|
|
|
void static OnDoubleClick (HWND hWnd)
|
|
{
|
|
PLEGEND pLegend ;
|
|
|
|
pLegend = LegendData (hWnd) ;
|
|
if (!pLegend)
|
|
return ;
|
|
|
|
switch (pLegend->iLineType) { // switch
|
|
case LineTypeChart:
|
|
EditChart (hWndMain) ;
|
|
break ;
|
|
|
|
} // switch
|
|
} // OnDoubleClick
|
|
|
|
|
|
void static OnSetFocus (HWND hWnd)
|
|
{ // OnSetFocus
|
|
PLEGEND pLegend ;
|
|
|
|
pLegend = LegendData (hWnd) ;
|
|
|
|
SetFocus (pLegend->hWndItems) ;
|
|
}
|
|
|
|
void static OnSelectionChanged (HWND hWnd)
|
|
{ // OnSelectionChanged
|
|
PLEGEND pLegend ;
|
|
PGRAPHSTRUCT pGraph ;
|
|
INT_PTR iIndex ;
|
|
|
|
pLegend = LegendData (hWnd) ;
|
|
|
|
// set the new selected line
|
|
iIndex = LBSelection (pLegend->hWndItems) ;
|
|
|
|
if (iIndex == LB_ERR)
|
|
return ;
|
|
|
|
LegendSetCurrentLine (pLegend, iIndex) ;
|
|
} // OnSelectionChanged
|
|
|
|
|
|
//==========================================================================//
|
|
// Exported Functions //
|
|
//==========================================================================//
|
|
|
|
|
|
LRESULT
|
|
APIENTRY
|
|
GraphLegendWndProc (
|
|
HWND hWnd,
|
|
UINT wMsg,
|
|
WPARAM wParam,
|
|
LPARAM lParam
|
|
)
|
|
{ // GraphLegendWndProc
|
|
BOOL bCallDefProc ;
|
|
LRESULT lReturnValue ;
|
|
|
|
|
|
bCallDefProc = FALSE ;
|
|
lReturnValue = 0L ;
|
|
|
|
switch (wMsg) { // switch
|
|
case WM_DELETEITEM:
|
|
break ;
|
|
|
|
case WM_COMMAND:
|
|
switch (HIWORD (wParam)) { // switch
|
|
case LBN_DBLCLK:
|
|
OnDoubleClick (hWnd) ;
|
|
break ;
|
|
|
|
case LBN_SELCHANGE:
|
|
OnSelectionChanged (hWnd) ;
|
|
break ;
|
|
|
|
default:
|
|
break ;
|
|
} // switch
|
|
break ;
|
|
|
|
case WM_CREATE:
|
|
OnLegendCreate (hWnd, (LPCREATESTRUCT) lParam) ;
|
|
break ;
|
|
|
|
case WM_DESTROY:
|
|
OnDestroy (hWnd) ;
|
|
break ;
|
|
|
|
case WM_DRAWITEM:
|
|
OnDrawLegendItem (hWnd, (LPDRAWITEMSTRUCT) lParam) ;
|
|
break ;
|
|
|
|
case WM_MEASUREITEM:
|
|
OnMeasureItem (hWnd, (LPMEASUREITEMSTRUCT) lParam) ;
|
|
break ;
|
|
|
|
case WM_PAINT:
|
|
OnPaint (hWnd) ;
|
|
break ;
|
|
|
|
case WM_SIZE:
|
|
OnSize (hWnd, LOWORD (lParam), HIWORD (lParam)) ;
|
|
break ;
|
|
|
|
case WM_SETFOCUS:
|
|
OnSetFocus (hWnd) ;
|
|
break ;
|
|
|
|
default:
|
|
bCallDefProc = TRUE ;
|
|
} // switch
|
|
|
|
|
|
if (bCallDefProc)
|
|
lReturnValue = DefWindowProc (hWnd, wMsg, wParam, lParam) ;
|
|
|
|
return (lReturnValue);
|
|
} // GraphLegendWndProc
|
|
|
|
|
|
int LegendMinWidth (HWND hWnd)
|
|
{
|
|
PLEGEND pLegend ;
|
|
int iCol ;
|
|
int xMinWidth ;
|
|
|
|
pLegend = LegendData (hWnd) ;
|
|
xMinWidth = 0 ;
|
|
|
|
for (iCol = 0 ;
|
|
iCol < iLegendNumCols ;
|
|
iCol++) { // for
|
|
xMinWidth += pLegend->aCols[iCol].xMinWidth ;
|
|
} // for
|
|
|
|
return (xMinWidth) ;
|
|
}
|
|
|
|
|
|
int LegendMinHeight (HWND hWnd)
|
|
{
|
|
PLEGEND pLegend ;
|
|
|
|
pLegend = LegendData (hWnd) ;
|
|
|
|
if (IsLegendLabelVisible ())
|
|
return (pLegend->yLabelHeight + pLegend->yItemHeight) ;
|
|
else
|
|
return (pLegend->yItemHeight) ;
|
|
}
|
|
|
|
|
|
int LegendHeight (HWND hWnd, int yGraphHeight)
|
|
/*
|
|
Effect: Return the best height for the Legend window given the
|
|
number of items and label visibility of the legend, as
|
|
well as the overall height of the graph.
|
|
*/
|
|
{ // LegendHeight
|
|
PLEGEND pLegend ;
|
|
int yPreferredHeight ;
|
|
|
|
pLegend = LegendData (hWnd) ;
|
|
|
|
yPreferredHeight = yLegendBorderHeight +
|
|
pLegend->yItemHeight *
|
|
PinInclusive (LBNumItems (pLegend->hWndItems),
|
|
1, iLegendMaxVisibleItems) ;
|
|
if (IsLegendLabelVisible ())
|
|
yPreferredHeight += pLegend->yLabelHeight ;
|
|
|
|
return (min (yPreferredHeight, yGraphHeight / 2)) ;
|
|
} // LegendHeight
|
|
|
|
|
|
|
|
int LegendFullHeight (HWND hWnd, HDC hDC)
|
|
/*
|
|
Effect: Return the best height for the Legend window given the
|
|
number of items and label visibility of the legend, as
|
|
well as the overall height of the graph.
|
|
*/
|
|
{ // LegendHeight
|
|
PLEGEND pLegend ;
|
|
int yPreferredHeight ;
|
|
|
|
pLegend = LegendData (hWnd) ;
|
|
|
|
yPreferredHeight = yLegendBorderHeight +
|
|
pLegend->yItemHeight *
|
|
LBNumItems (pLegend->hWndItems) ;
|
|
if (IsLegendLabelVisible ())
|
|
yPreferredHeight += pLegend->yLabelHeight ;
|
|
|
|
return (yPreferredHeight) ;
|
|
} // LegendFullHeight
|
|
|
|
|
|
|
|
|
|
HWND CreateGraphLegendWindow (HWND hWndGraph)
|
|
{
|
|
return (CreateWindow (szGraphLegendClass, // class
|
|
NULL, // caption
|
|
dwGraphLegendWindowStyle, // window style
|
|
0, 0, // position
|
|
0, 0, // size
|
|
hWndGraph, // parent window
|
|
NULL, // menu
|
|
hInstance, // program instance
|
|
(LPVOID) TRUE)) ; // user-supplied data
|
|
}
|
|
|
|
|
|
BOOL GraphLegendInitializeApplication (void)
|
|
/*
|
|
Called By: GraphInitializeApplication only
|
|
*/
|
|
{
|
|
WNDCLASS wc ;
|
|
|
|
wc.style = dwGraphLegendClassStyle ;
|
|
wc.lpfnWndProc = GraphLegendWndProc ;
|
|
wc.hInstance = hInstance ;
|
|
wc.cbClsExtra = iGraphLegendClassExtra ;
|
|
wc.cbWndExtra = iGraphLegendWindowExtra ;
|
|
wc.hIcon = NULL ;
|
|
wc.hCursor = LoadCursor (NULL, IDC_ARROW) ;
|
|
wc.hbrBackground = hbLightGray ;
|
|
wc.lpszMenuName = NULL ;
|
|
wc.lpszClassName = szGraphLegendClass ;
|
|
|
|
return (RegisterClass (&wc)) ;
|
|
}
|
|
|
|
|
|
BOOL LegendAddItem (HWND hWnd, PLINESTRUCT pLine)
|
|
/*
|
|
Effect: Add a legend entry for the line pLine. Don't select
|
|
the line as current entry here, because this will cause
|
|
the scroll bar to unneccesarily appear for a moment.
|
|
If you want this line to be the current line, resize
|
|
the legend first, then set as current line.
|
|
|
|
See Also: ChartInsertLine.
|
|
*/
|
|
{ // LegendAddItem
|
|
PLEGEND pLegend ;
|
|
|
|
pLegend = LegendData (hWnd) ;
|
|
LBAdd (pLegend->hWndItems, pLine) ;
|
|
|
|
return (TRUE) ;
|
|
} // LegendAddItem
|
|
|
|
|
|
void LegendDeleteItem (HWND hWndLegend,
|
|
PLINE pLine)
|
|
{ // LegendDeleteItem
|
|
PLEGEND pLegend ;
|
|
INT_PTR iIndex ;
|
|
INT_PTR iNextIndex ;
|
|
INT_PTR iNumItems ;
|
|
PGRAPHSTRUCT pGraph ;
|
|
|
|
pLegend = LegendData (hWndLegend) ;
|
|
if (!pLegend)
|
|
return ;
|
|
|
|
iNumItems = LBNumItems (pLegend->hWndItems) ;
|
|
|
|
iIndex = LBFind (pLegend->hWndItems, pLine) ;
|
|
|
|
if (iIndex != LB_ERR) {
|
|
LBDelete (pLegend->hWndItems, iIndex) ;
|
|
}
|
|
|
|
// no need to do anything if iNumItems is 1 to begin with
|
|
if (iNumItems != LB_ERR && iNumItems > 1) {
|
|
if (iIndex == iNumItems - 1) {
|
|
// deleting the last line, then set selection
|
|
// to the previous legend line
|
|
iNextIndex = iIndex - 1 ;
|
|
} else {
|
|
// set the selection to the next legend line
|
|
iNextIndex = iIndex ;
|
|
}
|
|
|
|
LBSetSelection (pLegend->hWndItems, iNextIndex) ;
|
|
LegendSetCurrentLine (pLegend, iNextIndex) ;
|
|
}
|
|
} // LegendDeleteItem
|
|
|
|
|
|
PLINE LegendCurrentLine (HWND hWndLegend)
|
|
{ // LegendCurrentLine
|
|
PLEGEND pLegend ;
|
|
|
|
pLegend = LegendData (hWndLegend) ;
|
|
|
|
if (!pLegend)
|
|
return (NULL) ;
|
|
|
|
return (pLegend->pCurrentLine) ;
|
|
|
|
} // LegendCurrentLine
|
|
|
|
|
|
|
|
int LegendNumItems (HWND hWndLegend)
|
|
{ // LegendNumItems
|
|
PLEGEND pLegend ;
|
|
|
|
pLegend = LegendData (hWndLegend) ;
|
|
|
|
return (LBNumItems (pLegend->hWndItems)) ;
|
|
} // LegendNumItems
|
|
|
|
|
|
|
|
void LegendSetSelection (HWND hWndLegend, int iIndex)
|
|
{ // LegendSetSelection
|
|
PLEGEND pLegend ;
|
|
|
|
pLegend = LegendData (hWndLegend) ;
|
|
LBSetSelection (pLegend->hWndItems, iIndex) ;
|
|
LegendSetCurrentLine (pLegend, iIndex) ;
|
|
} // LegendSetSelection
|
|
|
|
|
|
|
|
#ifdef KEEP_PRINT
|
|
|
|
void PrintLegend (HDC hDC, PGRAPHSTRUCT pGraph, HWND hWndLegend,
|
|
RECT rectLegend)
|
|
{
|
|
PLEGEND pLegend ;
|
|
int yItemHeight ;
|
|
HFONT hFontItems ;
|
|
PLINE pLine ;
|
|
int iIndex ;
|
|
int iIndexNum ;
|
|
|
|
|
|
pLegend = LegendData (hWndLegend) ;
|
|
|
|
yItemHeight = pLegend->yItemHeight ;
|
|
hFontItems = pLegend->hFontItems ;
|
|
|
|
pLegend->hFontItems = hFontPrinterScales ;
|
|
SelectFont (hDC, pLegend->hFontItems) ;
|
|
|
|
pLegend->yItemHeight = FontHeight (hDC, TRUE) ;
|
|
|
|
iIndexNum = LBNumItems (pLegend->hWndItems) ;
|
|
for (iIndex = 0 ;
|
|
iIndex < iIndexNum ;
|
|
iIndex++) { // for
|
|
pLine = (PLINE) LBData (pLegend->hWndItems, iIndex) ;
|
|
DrawLegendItem (pLegend, pLine, iIndex * pLegend->yItemHeight, hDC) ;
|
|
} // for
|
|
|
|
pLegend->hFontItems = hFontItems ;
|
|
pLegend->yItemHeight = yItemHeight ;
|
|
|
|
|
|
SelectBrush (hDC, GetStockObject (HOLLOW_BRUSH)) ;
|
|
SelectPen (hDC, GetStockObject (BLACK_PEN)) ;
|
|
Rectangle (hDC, 0, 0,
|
|
rectLegend.right - rectLegend.left,
|
|
rectLegend.bottom - rectLegend.top) ;
|
|
}
|
|
#endif
|
|
|
|
|
|
void ClearLegend (HWND hWndLegend)
|
|
{
|
|
PLEGEND pLegend ;
|
|
|
|
pLegend = LegendData (hWndLegend) ;
|
|
if (!pLegend)
|
|
return ;
|
|
|
|
LBReset (pLegend->hWndItems) ;
|
|
pLegend->pCurrentLine = NULL ;
|
|
}
|
|
|
|
void LegendSetRedraw (HWND hWndLegend, BOOL bRedraw)
|
|
{
|
|
PLEGEND pLegend ;
|
|
|
|
pLegend = LegendData (hWndLegend) ;
|
|
if (!pLegend)
|
|
return ;
|
|
|
|
LBSetRedraw (pLegend->hWndItems, bRedraw) ;
|
|
}
|
|
|
|
|