MiniGUI

CTRL_LISTVIEW

 

风格选项

LVS_TREEVIEW 以树型的方式来显示列表项

LVS_UPNOTIFY 指定鼠标点击操作的响应方式，默认情况下，如果没有指定 LVS_UPNOTIFY 风 格，列表型控件将在鼠标按下时发出通知消息；如果指定了该风格，控件将在鼠标抬起时发出通知消息

 

数据结构

列

typedef struct _LVCOLUMN

{

int nCols;     // 新增列的位置，如果小于0或者超出列次序范围则添加为最后一列

int width;     // 列宽

char *pszHeadText;    // 列的标题

int nTextMax;     // 列标题的最大长度

DWORD image;     // 列表头的图像，3.0为保留字段

PFNLVCOMPARE pfnCompare;     // 用于列排序的比较函数

DWORD colFlags;    // 列标志，LVCF_LEFTALIGN、LVCF_RIGHTALIGN 和 LVCF_CENTERALIGN，分别代表中文左对齐、居中、右对齐

} LVCOLUMN;

typedef LVCOLUMN *PLVCOLUMN;

 

列表项比较函数

typedef int (*PFNLVCOMPARE) (int nItem1, int nItem2, PLVSORTDATA sortData);    // sortData在3.0中没有意义

自定义字符串比较函数

typedef int (*STRCMP) (const char* s1, const char* s2, size_t n);

 

列表项

typedef struct _LVITEM

{

int nItem;    // 新增列表项的位置索引值，如果该值超出索引值范围的话，新增的项将被添加到列表的最后，如果 LVM_ADDITEM 消息 的 wParam 参数指定了新添节点的   

                    // 父节点，nItem 项所表示的位置值指的是新添节点在父节点中的位置

int nItemHeight;    //  列表项的高度

DWORD itemData;    // 列表项的附加数据

DWORD dwFlags;    // 列表项的状态， LVIF_FOLD，列表项可折叠

} LVITEM;

 

列表子项

typedef struct _LVSUBITEM

{

DWORD flags;    // 子项的标志，LVFLAG_BITMAP 和 LVFLAG_ICON

int nItem;     // 子项的垂直索引值

int subItem;    // 子项的水平索引值

char *pszText;     // 子项的文字内容

int nTextMax;    // 子项的文字长度

int nTextColor;    // 子项的文字颜色

DWORD image;    // 子项的图像

} LVSUBITEM;

typedef LVSUBITEM *PLVSUBITEM;

 

列表项查找信息

typedef struct _LVFINDINFO

{

DWORD flags;    // 查找标志，LVFF_TEXT和（或）LVFF_ADDDATA

int iStart;    // 查找的开始索引

int nCols;    // 表示匹配的列表项中前nCols列子项的文字内容要和pszInfo中的字符串一致

char **pszInfo;    // 查找的多个子项文字内容

DWORD addData;     // 列表项附加数据

int nItem;     // The found item's row, reserved

int nSubitem;    // The found subitem's column, reserved

} LVFINDINFO;

typedef LVFINDINFO *PLVFINDINFO;

 

 

消息

1. 列的操作

添加列： LVCOLUMN p; SendMessage (hwndListView, LVM_ADDCOLUMN, 0, (LPARAM)&p);

设置修改列属性：LVCOLUMN p; SendMessage (hwndListView, LVM_SETCOLUMN, 0, (LPARAM)&p);

设置列表头标题：LVCOLUMN p; SendMessage (hwndListView, LVM_MODIFYHEAD, 0, (LPARAM)&p); // 只需给出 nCols 和 pszHeadText 项的值

获取列属性：LVCOLUMN p; int nCols; SendMessage (hwndListView, LVM_GETCOLUMN, nCols, (LPARAM)&p);

获取列宽度：int width; int nCols; width = SendMessage (hwndListView, LVM_GETCOLUMNWIDTH, nCols, 0);

获取列数量：int count; count = SendMessage (hwndListView, LVM_GETCOLUMNCOUNT, 0, 0);

删除列：int nCols; SendMessage (hwndListView, LVM_DELCOLUMN, nCols, 0);

设置列表头高度：int newHeight; SendMessage (hwndListView, LVM_SETHEADHEIGHT, newHeight, 0);

 

2. 列表项操作

添加列表项：HLVITEM hItem; HLVITEM hParent; LVITEM lvItem; hItem = SendMessage (hwndListView, LVM_ADDITEM, hParent, (LPARAM)&lvItem);
获取列表项：LVITEM lvItem; HLVITEM hItem; SendMessage (hwndListView, LVM_GETITEM, hItem, (LPARAM)&lvItem);    // hItem 为目标列表型的句柄，如果 hItem 为 0，lvItem 结构的 nItem 域应该预设为所要获取的列表项的索引值
获取列表项数量：int count; count = SendMessage (hwndListView, LVM_GETITEMCOUNT, 0, 0);
获取列表项附加数据：DWORD addData; int nItem; HLVITEM hItem; addData = SendMessage (hwndListView, LVM_GETITEMADDDATA, nItem, hItem);
设置列表项附加数据：HLVITEM hItem; DWORD addData; SendMessage (hwndListView, LVM_SETITEMADDDATA, hItem, (LPARAM)addData);    // 如果设置成功，返回 LV_OKAY，否则返回 LV_ERR
设置列表项高度：HLVITEM hItem; int newHeight; SendMessage (hwndListView, LVM_SETITEMHEIGHT, hItem, newHeight);    // 如果设置成功，返回 TRUE，否则返 回 FALSE
删除一个列表项：HLVITEM hItem; int nItem;  SendMessage (hwndListView, LVM_DELITEM, nItem, hItem); 
删除所有列表项：SendMessage (hwndListView, LVM_DELALLITEM, 0, 0);

设置子项属性：LVSUBITEM subItem; HLVITEM hItem; SendMessage (hwndListView, LVM_SETSUBITEM, hItem, (LPARAM)&subItem);

获取子项文字：LVSUBITEM subItem; HLVITEM hItem; SendMessage (hwndListView, LVM_GETSUBITEMTEXT, hItem, (LPARAM)&subItem);

设置子项文字：LVSUBITEM subItem; HLVITEM hItem; SendMessage (hwndListView, LVM_SETSUBITEMTEXT, hItem, (LPARAM)&subItem); 

获取子项文字长度：LVSUBITEM subItem; HLVITEM hItem; int len; len = SendMessage (hwndListView, LVM_GETSUBITEMLEN, hItem, (LPARAM)&subItem);

 

选择列表项：int nItem; HLVITEM hItem; SendMessage (hwndListView, LVM_SELECTITEM, nItem, hItem);    // 选择的列表项不一定可见

获取被选中的列表项：HLVITEM hItemSelected; hItemSelected = SendMessage (hwndListView, LVM_GETSELECTEDITEM, 0, 0);

使列表项可见：HLVITEM hItem; int nItem; SendMessage (hwndListView, LVM_SHOWITEM, nItem, hItem);    // 成为可见区域中的第一个或最后一个可见条目，而且是 完全可见的

选中并使列表项可见：int nItem; HHLVITEM hItem; SendMessage (hwndListView, LVM_CHOOSEITEM, nItem, hItem);

查找列表项：HLVITEM hFound; HLVITEM hParent;  LVFINDINFO findInfo; hFound = SendMessage (hwndListView, LVM_FINDITEM, hParent, (LPARAM)&findInfo);

 

对列表项排序：SendMessage (hwndListView, LVM_SORTITEMS, 0, (LPARAM)pfnCompare);    // pfnCompare指向一个PFNLVCOMPARE类型的函数

依据某一列排序：int nCol; SendMessage (hwndListView, LVM_COLSORT, nCol, 0);

设置自定义字符串比较函数：SendMessage (hwndListView, LVM_SETSTRCMPFUNC, 0, (LPARAM)pfnStrCmp);    // 默认字符串比较函数是strcasecmp，pfnStrCmp指向STRCMP类型的函数

 

3. 树型节点的操作

获取相关节点：int related; HLVITEM hItem; HLVITEM hRelatedItem; hRelatedItem = SendMessage (hwndListView, LVM_GETRELATEDITEM, related, hItem); 

/*related 指定相关节点和目标节点的关系，包括：

• LVIR_PARENT：获取父节点

• LVIR_FIRSTCHILD：获取第一个子节点

• LVIR_NEXTSIBLING：获取下一个兄弟节点

• LVIR_PREVSIBLING：获取前一个兄弟节点*/

折叠或者展开一个包含子节点的节点项：HLVITEM hItem; BOOL bFold; SendMessage (hwndListView, LVM_FOLDITEM, bFold, hItem);    // bFold为TRUE的话折叠节点项，否则展开节点项

 

通知

1. 具有 LVS_NOTIFY 风格的列表框可能产生的通知消息

LVN_ITEMRDOWN：用户鼠标右键在列表项上按下

LVN_ITEMRUP：用户鼠标右键在列表项上抬起

LVN_HEADRDOWN：用户鼠标右键在表头上按下

LVN_HEADRUP：用户鼠标右键在表头上抬起

LVN_KEYDOWN：键按下

LVN_ITEMDBCLK：用户双击某个列表项

LVN_ITEMCLK：用户单击某个列表项（保留）

LVN_SELCHANGE：当前选择的列表项改变

LVN_FOLDED：用户鼠标点击某个列表项，使之折叠

LVN_UNFOLDED：用户鼠标点击某个列表项，使之展开

当用户鼠标右键在列表项上按下时，该项将被选中，并且产生LVN_SELCHANGE和LVN_ITEMRDOWN两个通知码

 

2. 使用SetNotificationCallback函数注册一个自定义的通知消息处理函数

 

mg-samples的列表型控件示例

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>

#include <minigui/common.h>
#include <minigui/minigui.h>
#include <minigui/gdi.h>
#include <minigui/window.h>
#include <minigui/control.h>

#define IDC_LISTVIEW    10
#define IDC_CTRL1       20
#define IDC_CTRL2       30

#define SUB_NUM      3

#define COL_NR       TABLESIZE(caption)
#define SCORE_NUM    TABLESIZE(scores)

#define everage_score                    "Everage score" 
#define getting_the_average_score        "Getting the average score"

typedef struct _SCORE
{
    char *name;
    int scr[SUB_NUM];
} SCORE;

static char * caption [] =
{
    "Name", "Chinese", "Math", "English"
};

static char *classes [] =
{
    "Grade 1", "Grade 2", "Grade 3"
};

static SCORE scores[] =
{
    {"Tom", {81, 96, 75}},
    {"Jack", {98, 62, 84}},
    {"Merry", {79, 88, 89}},
    {"Bob", {79, 88, 89}},
};

static GHANDLE add_class_item (HWND hlist, PLVITEM lvItem, GHANDLE classent)
{
    LVSUBITEM subdata;
    GHANDLE item = SendMessage (hlist, LVM_ADDITEM, classent, (LPARAM)lvItem);

    subdata.nItem = lvItem->nItem;
    subdata.subItem = 0;
    subdata.pszText = classes[lvItem->nItem];;
    subdata.nTextColor = PIXEL_black;
    subdata.flags = 0;
    subdata.image = 0;
    SendMessage (hlist, LVM_SETSUBITEM, item, (LPARAM) & subdata);

    return item;
}

static GHANDLE add_score_item (HWND hlist, PLVITEM lvItem, GHANDLE classent)
{
    char buff[20];
    LVSUBITEM subdata;
    GHANDLE item = SendMessage (hlist, LVM_ADDITEM, classent, (LPARAM)lvItem);
    int i = lvItem->nItem;
    int j;

    subdata.flags = 0;
    subdata.image = 0;
    subdata.nItem = lvItem->nItem;

    for (j = 0; j < 4; j ++) {
        subdata.subItem = j;
        if (j == 0) {
            subdata.pszText = scores[i].name;
            subdata.nTextColor = PIXEL_black;
        }
        else {
            sprintf (buff, "%d", scores[i].scr[j-1]);
            subdata.pszText = buff;
            if (scores[i].scr[j-1] > 90)
                subdata.nTextColor = PIXEL_red;
            else
                subdata.nTextColor = PIXEL_black;
        }
        SendMessage (hlist, LVM_SETSUBITEM, item, (LPARAM) & subdata);
    }

    return item;
}

//#define CUSTOM_DRAW

#ifdef CUSTOM_DRAW

static void my_draw_hdr_bk (HWND hWnd, HLVHDR hlvhdr, HDC hdc, RECT *rcDraw)
{
    SetBrushColor (hdc, PIXEL_yellow);
    FillBox (hdc, rcDraw->left, rcDraw->top, RECTWP(rcDraw), RECTHP(rcDraw));
}

static void my_draw_hdr_item (HWND hWnd, int idx, HDC hdc, RECT *rcDraw)
{
    Rectangle (hdc, rcDraw->left, rcDraw->top, rcDraw->right, rcDraw->bottom);
    SetBkMode (hdc, BM_TRANSPARENT);
    TextOut (hdc, rcDraw->left+4, rcDraw->top+4, caption[idx]);
}
#endif

static int
ScoreProc (HWND hDlg, int message, WPARAM wParam, LPARAM lParam)
{
    HWND hListView;
    hListView = GetDlgItem (hDlg, IDC_LISTVIEW);

    switch (message)
    {

    case MSG_INITDIALOG:
    {
        int i, j;
        LVITEM item;
        LVCOLUMN lvcol;
        GHANDLE hitem;
#ifdef CUSTOM_DRAW
        LVCUSTOMDRAWFUNCS myfuncs = {my_draw_hdr_bk, my_draw_hdr_item};

        SendMessage (hListView, LVM_SETCUSTOMDRAW, 0, (LPARAM) &myfuncs);
#endif

        for (i = 0; i < COL_NR; i++) {
            lvcol.nCols = i;
            lvcol.pszHeadText = caption[i];
            lvcol.width = 75;
            lvcol.pfnCompare = NULL;
            lvcol.colFlags = 0;
            SendMessage (hListView, LVM_ADDCOLUMN, 0, (LPARAM) &lvcol);
        }

        item.dwFlags &= ~LVIF_FOLD;
        item.nItemHeight = 25;

        SendMessage (hListView, MSG_FREEZECTRL, TRUE, 0);
        hitem = 0;
        for (i = 0; i < 3; i++) {
            item.nItem = i;
            hitem = add_class_item (hListView, &item, 0);

            for (j = 0; j < SCORE_NUM; j++) {
                item.nItem = j;
                add_score_item (hListView, &item, hitem);
            }

        }

        SendMessage (hListView, MSG_FREEZECTRL, FALSE, 0);
        break;
    }

    case MSG_COMMAND:
    {
        int id = LOWORD (wParam);
        int i, j;

        if (id == IDC_CTRL2) {
            float average = 0;
            char buff[20];
            for (i = 0; i < SCORE_NUM; i++) {
                for (j = 0; j < SUB_NUM; j++) {
                    average += scores[i].scr[j];
                }
            }
            average = average / (SCORE_NUM * SUB_NUM);

            sprintf (buff, "%4.1f", average);
            SendDlgItemMessage (hDlg, IDC_CTRL1, MSG_SETTEXT, 0, (LPARAM)buff);
            printf("selected column%d
", SendDlgItemMessage(hDlg, IDC_LISTVIEW,  LVM_GETSELECTEDCOLUMN, 0,0));
        }
        break;
    }

    case MSG_CLOSE:
    {
        EndDialog (hDlg, 0);
        break;
    }

    }

    return DefaultDialogProc (hDlg, message, wParam, lParam);
}

static CTRLDATA CtrlScore[] =
{
    {
        "button",
        WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,
         110, 255, 100, 30,
        IDC_CTRL2,
        everage_score,
        0
    },
    {
        "edit",
        WS_CHILD | WS_VISIBLE | WS_BORDER,
         10, 260, 50, 20,
        IDC_CTRL1,
        "",
        0
    },
    {
        "listview",
        /*WS_BORDER |*/ WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_HSCROLL | LVS_TREEVIEW,
         10, 10, 320, 220,
        IDC_LISTVIEW,
        "score table",
        0
    },
};

static DLGTEMPLATE DlgScore =
{
    WS_BORDER | WS_CAPTION,
    WS_EX_NONE,
    0, 0, 350, 340,
    getting_the_average_score,
    0, 0,
    0, NULL,
    0
};

int MiniGUIMain (int argc, const char* argv[])
{
#ifdef _MGRM_PROCESSES
    JoinLayer(NAME_DEF_LAYER , "listview" , 0 , 0);
#endif
    
    DlgScore.controls = CtrlScore;
    DlgScore.controlnr = TABLESIZE(CtrlScore);
    
    DialogBoxIndirectParam (&DlgScore, HWND_DESKTOP, ScoreProc, 0L);

    return 0;
}

#ifdef _MGRM_THREADS
#include <minigui/dti.c>
#endif