label.c

来自「rtCell 实时微内核－具有下列功能： 1. 完全抢占的实时微内核结构」· C语言 代码 · 共 123 行

/*
 *******************************************************************************
 *                      The real-time kernel "rtCell"                          *
 *              Copyright 2005 taowentao, allrights reserved.                  *
 * File : Label.c                                                              *
 * By   : taowentao     2006-09-02  2007-05-20                                 *
 *******************************************************************************
 */

#if !defined(LABEL_H)
#include "giCell\Wins\include\Label.h"
#endif  

/*
 *******************************************************************************
 *                                                                             *
 *******************************************************************************
 */

static COLOR LabelColor = GD_GRAY;
static COLOR CaptionColor = GD_BLACK;

/*
 *******************************************************************************
 *                                                                             *
 *******************************************************************************
 */

static void LabelPaint(VIEW *pView)
{
    LABEL* pLbl;
    COLOR  clr;
    int    xSize, ySize;
    POINT  pt; 

    pLbl = OBJ_FROM_VIEW(pView);
    FillRect(&(pView->viewRect), pLbl->LabelColor);
    
    if (pLbl->Status & CTRL_MOUSE_ENTER) clr = MOUSEENTERCOLOR;
    else clr = pLbl->CaptionColor;

    xSize = TextWidth(pLbl->pCaption);
    ySize = TextHeight(pLbl->pCaption);
    GetOrgFromAlign(xSize, ySize, &(pView->viewRect), pLbl->CaptionAlign, &pt);
    DrawText(pt.x, pt.y, pLbl->pCaption, clr);

    if (pLbl->Status & CTRL_HTML_LABEL) {
        DrawHLine(pt.y+ySize, pt.x, pt.x+xSize, clr);
    }
}

static CBOOL _cdecl_ LabelViewProc(VMSG *pMsg)
{  
    LABEL* pLbl = OBJ_FROM_VIEW(pMsg->pView);
    MOUSE_INF mi;
    
    switch (pMsg->MsgID) {
    case MSM_LB_UP:
        if ((pLbl->Status & CTRL_MOUSE_CATCH) == 0) return (true);
        pLbl->Status &= ~(CTRL_MOUSE_CATCH);
        UpdateView(pMsg->pView);
        
        if ((pLbl->Status & CTRL_FOCUSSED) &&
            (pLbl->Status & CTRL_MOUSE_ENTER)) {
            if (pLbl->pOnClick != NULL) {
                mi.raw = pMsg->vParam;
                (*(pLbl->pOnClick))(pMsg->pt.x, pMsg->pt.y, mi);
            }
        }  
        return (true);  
    default:
        return (CtrlViewProc(pMsg, LabelPaint, &(pLbl->Status)));
    }
}

LABEL* CreateLabel(int left, int top, int width, int height, VIEW* pParent,
                     BYTE* pCaption, PCLICK pOnClick, CWORD Align, CWORD Style)
{
    VIEW   *pView;
    LABEL *pLbl; 

    if (pParent == NULL) 
        return (NULL);

    pView = CreateControl(left, top, width, height, pParent, 0,
                          LabelViewProc, sizeof(LABEL));
    if (pView == NULL) return (NULL);

    pLbl = OBJ_FROM_VIEW(pView);
    pLbl->pView = pView;
    pLbl->CaptionColor = CaptionColor;
    pLbl->pOnClick = pOnClick;
    pLbl->ptCatch.x = 0; pLbl->ptCatch.y = 0;
    pLbl->LabelColor = LabelColor;
    pLbl->pCaption = pCaption;
    pLbl->Status = Style;
    pLbl->CaptionAlign = Align;
    ShowView(pLbl->pView);
    return (pLbl);
}

void DeleteLabel(LABEL *pLbl)
{
    if (pLbl == NULL) return;
    DeleteView(pLbl->pView);
}

void SetLabelAlign(LABEL *pLbl, CWORD Align)
{
    if (pLbl == NULL) return;
    pLbl->CaptionAlign = Align;
    UpdateView(pLbl->pView);
}

void SetLabelText(LABEL *pLbl, BYTE *pStr)
{
    if (pLbl == NULL) return;
    pLbl->pCaption = pStr;
    UpdateView(pLbl->pView);
}