minigui-docs/programming-guide-zh/samples/scrollbar.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

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

#include <mgncs/mgncs.h>

#define ID_SB1  100
#define ID_SB2  101

static RECT rcCircle = {0, 0, 400, 400};
static int radius_x = 0;
static int radius_y = 0;

static BOOL mymain_onCreate(mWidget* self, DWORD add_data)
{
    return TRUE;
}
static void mymain_onClose(mWidget* self, int message)
{
    DestroyMainWindow(self->hwnd);
    PostQuitMessage(0);
}

static void mymain_onPaint(mWidget* self, HDC hdc, const PCLIPRGN clip_rgn)
{
    ClipRectIntersect(hdc, &rcCircle);
    Ellipse(hdc, 130, 200, radius_x, radius_y);
}

//define the progress properites
static NCS_PROP_ENTRY scrollbar_props [] = {
    {NCSP_SCRLBR_MAXPOS, 255},
    {NCSP_SCRLBR_MINPOS, 0 },
    {NCSP_SCRLBR_LINESTEP, 5},
    {NCSP_SCRLBR_CURPOS, 10 },
    { 0, 0 }
};


static void scrollbar_notify(mScrollBar* self, int id, int code, DWORD add_data)
{
    HWND hWnd = GetParent(self->hwnd);

    if(id == ID_SB1)
        radius_x = _c(self)->getProperty(self, NCSP_SCRLBR_CURPOS);

    if(id == ID_SB2)
        radius_y = _c(self)->getProperty(self, NCSP_SCRLBR_CURPOS);

    InvalidateRect(hWnd, &rcCircle, TRUE);
}

static NCS_EVENT_HANDLER scrollbar_notifies[] = {
    NCS_MAP_NOTIFY(NCSN_SCRLBR_CHANGED, scrollbar_notify),
    {0, NULL}
};

static NCS_RDR_INFO sb_rdr_info[] =
{
    {"flat", "flat", NULL},
    //{"skin", "skin", NULL},
    //{"fashion","fashion", NULL}
};

//Controls
static NCS_WND_TEMPLATE _ctrl_templ[] = {
    {
        NCSCTRL_SCROLLBAR,
        ID_SB1,
        0, 440, 270, 25,
        WS_BORDER | NCSS_NOTIFY | WS_VISIBLE | NCSS_SCRLBR_ARROWS,
        WS_EX_NONE,
        "",
        scrollbar_props, //props,
        sb_rdr_info, //rdr_info
        scrollbar_notifies,
        NULL, //controls
        0,
        0 //add data
    },
    {
        NCSCTRL_SCROLLBAR,
        ID_SB2,
        270, 10, 20, 430,
        WS_BORDER | NCSS_NOTIFY | WS_VISIBLE \
            | NCSS_SCRLBR_ARROWS | NCSS_SCRLBR_VERTICAL,
        WS_EX_NONE,
        "",
        scrollbar_props, //props,
        sb_rdr_info, //rdr_info
        scrollbar_notifies,
        NULL, //controls
        0,
        0 //add data
    },
};


static NCS_EVENT_HANDLER mymain_handlers[] = {
    {MSG_CREATE, mymain_onCreate},
    {MSG_CLOSE, mymain_onClose},
    {MSG_PAINT, mymain_onPaint},
    {0, NULL}
};

//define the main window template
static NCS_MNWND_TEMPLATE mymain_templ = {
    NCSCTRL_DIALOGBOX,
    1,
    0, 0, 300, 500,
    WS_CAPTION | WS_BORDER | WS_VISIBLE,
    WS_EX_NONE,
    "scrollbar Test ....",
    NULL,
    NULL,
    mymain_handlers,
    _ctrl_templ,
    sizeof(_ctrl_templ)/sizeof(NCS_WND_TEMPLATE),
    0,
    0, 0,
};

int MiniGUIMain(int argc, const char* argv[])
{
    if(argc>1)
    {
        sb_rdr_info[0].glb_rdr = argv[1];
        sb_rdr_info[0].ctl_rdr = argv[1];
    }

    ncsInitialize();
    mDialogBox* mydlg = (mDialogBox *)ncsCreateMainWindowIndirect
                                (&mymain_templ, HWND_DESKTOP);

    _c(mydlg)->doModal(mydlg, TRUE);

    MainWindowThreadCleanup(mydlg->hwnd);
    return 0;
}