newtoolbar.c

libminigui-1.3.0.tar.gz。 miniGUI的库函数源代码！

/*
** $Id: newtoolbar.c,v 1.14 2003/09/04 02:40:36 weiym Exp $
**
** newtoolbar.c: the new-toolbar control module.
**
** This control is a substitute of old ToolBar control.
** New application should use the NewToolBar control
** instead of ToolBar control.
**
** Copyright (C) 2003 Feynman Software.
** 
** Authors:
**      Wei Yongming ([e-mail])
**      Peng Yuan
**
** Create date: 2003/04/24
*/

/*
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

/*
** TODO:
*/

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

#include "common.h"
#include "minigui.h"
#include "gdi.h"
#include "window.h"
#include "control.h"
#include "cliprect.h"
#include "internals.h"
#include "ctrlclass.h"

#ifdef _CTRL_NEWTOOLBAR

#include "ctrlmisc.h"
#include "newtoolbar.h"

static int NewToolbarCtrlProc (HWND hwnd, int message, WPARAM wParam, LPARAM lParam);

BOOL RegisterNewToolbarControl (void)
{
    WNDCLASS WndClass;

    WndClass.spClassName = CTRL_NEWTOOLBAR;
    WndClass.dwStyle     = WS_NONE;
    WndClass.dwExStyle   = WS_EX_NONE;
    WndClass.hCursor     = GetSystemCursor (IDC_ARROW);
    WndClass.iBkColor    = GetWindowElementColor (BKC_CONTROL_DEF);
    WndClass.WinProc     = NewToolbarCtrlProc;

    return AddNewControlClass (&WndClass) == ERR_OK;
}


static void line_a2b (HDC hdc, POINT* a, POINT* b, int color)
{
    SetPenColor (hdc, color);
    MoveTo (hdc, a->x, a->y);
    LineTo (hdc, b->x, b->y);
}

static void draw_tool_bar (HWND hwnd, HDC hdc, PNTBCTRLDATA ntb_data)
{
    int         l, t, r, b, w, h;
    RECT        rc;
    POINT       pta, ptb;
    NTBITEM*    item = NULL;

    GetClientRect (hwnd, &rc);

    /* draw top and bottom line */
#ifdef _FLAT_WINDOW_STYLE
    pta.x = 0; pta.y = 0;
    ptb.x = rc.right; ptb.y = pta.y;
    line_a2b (hdc, &pta, &ptb, COLOR_black);

    pta.x = 0; pta.y = rc.bottom - 1;
    ptb.x = rc.right; ptb.y = pta.y;
    line_a2b (hdc, &pta, &ptb, COLOR_black);

    /* draw two separator lines */
    pta.x = 2; pta.y = MARGIN_VERT;
    ptb.x = pta.x; ptb.y = rc.bottom - MARGIN_VERT - 1;
    line_a2b (hdc, &pta, &ptb, COLOR_black);

    pta.x = 5; pta.y = MARGIN_VERT;
    ptb.x = pta.x; ptb.y = rc.bottom - MARGIN_VERT - 1;
    line_a2b (hdc, &pta, &ptb, COLOR_black);

    /* draw separator line between bitmap and text */
    if ((ntb_data->style & NTBS_WITHTEXT) && !(ntb_data->style & NTBS_TEXTRIGHT)) {
        pta.x = MARGIN_HORZ; pta.y = rc.bottom - GetFontHeight (hdc) - GAP_BMP_TEXT_VERT;
        ptb.x = rc.right; ptb.y = pta.y;
        line_a2b (hdc, &pta, &ptb, COLOR_black);
    }
#else
    rc.bottom -= 1;
    rc.right -= 1;

    pta.x = 0; pta.y = 0;
    ptb.x = rc.right; ptb.y = pta.y;
    line_a2b (hdc, &pta, &ptb, COLOR_darkgray);
    pta.y += 1; ptb.y = pta.y;
    line_a2b (hdc, &pta, &ptb, COLOR_lightwhite);

    pta.x = 0; pta.y = rc.bottom - 1;
    ptb.x = rc.right; ptb.y = pta.y;
    line_a2b (hdc, &pta, &ptb, COLOR_darkgray);
    pta.y += 1; ptb.y = pta.y;
    line_a2b (hdc, &pta, &ptb, COLOR_lightwhite);

    /* draw two separator lines */
    pta.x = 2; pta.y = MARGIN_VERT;
    ptb.x = pta.x; ptb.y = rc.bottom - MARGIN_VERT - 1;
    line_a2b (hdc, &pta, &ptb, COLOR_darkgray);
    pta.x += 1; ptb.x = pta.x;
    line_a2b (hdc, &pta, &ptb, COLOR_lightwhite);

    pta.x = 5; pta.y = MARGIN_VERT;
    ptb.x = pta.x; ptb.y = rc.bottom - MARGIN_VERT - 1;
    line_a2b (hdc, &pta, &ptb, COLOR_darkgray);
    pta.x += 1; ptb.x = pta.x;
    line_a2b (hdc, &pta, &ptb, COLOR_lightwhite);

    /* draw separator line between bitmap and text */
    if ((ntb_data->style & NTBS_WITHTEXT) && !(ntb_data->style & NTBS_TEXTRIGHT)) {
        pta.x = MARGIN_HORZ; pta.y = rc.bottom - GetFontHeight (hdc) - GAP_BMP_TEXT_VERT;
        ptb.x = rc.right; ptb.y = pta.y;
        line_a2b (hdc, &pta, &ptb, COLOR_darkgray);
        pta.y += 1; ptb.y = pta.y;
        line_a2b (hdc, &pta, &ptb, COLOR_lightwhite);
    }
#endif /* _FLAT_WINDOW_STYLE */

    item = ntb_data->head;
    while (item) {

        l = item->rc_item.left;
        t = item->rc_item.top;
        r = item->rc_item.right;
        b = item->rc_item.bottom;
        w = ntb_data->w_cell;
        h = ntb_data->h_cell;

        if ((item->flags & NTBIF_TYPEMASK) == NTBIF_SEPARATOR) {
            if (ntb_data->style & NTBS_DRAWSEPARATOR) {
#ifdef _FLAT_WINDOW_STYLE
                pta.x = l + 2;
                pta.y = t;
                ptb.x = pta.x;
                ptb.y = rc.bottom - MARGIN_VERT;
                line_a2b (hdc, &pta, &ptb, COLOR_black);
#else
                pta.x = l + 1;
                pta.y = t;
                ptb.x = pta.x;
                ptb.y = rc.bottom - MARGIN_VERT;
                line_a2b (hdc, &pta, &ptb, COLOR_darkgray);

                pta.x += 1;
                pta.y = t;
                ptb.x = pta.x;
                ptb.y = rc.bottom - MARGIN_VERT;
                line_a2b (hdc, &pta, &ptb, COLOR_lightwhite);
#endif
            }

            item = item->next;
            continue;
        }

        if (item->flags & NTBIF_DISABLED) {
                if (ntb_data->nr_cols == 4)
                    FillBoxWithBitmapPart (hdc, l, t, w, h, 0, 0, ntb_data->image, 
                                w * 3, h * item->bmp_cell);
                else
                    FillBoxWithBitmapPart (hdc, l, t, w, h, 0, 0, ntb_data->image, 
                                0, h * item->bmp_cell);
        }
        else {
            if (item == ntb_data->sel_item) {
                if (ntb_data->btn_down && ntb_data->nr_cols >= 3)
                    FillBoxWithBitmapPart (hdc, l, t, w, h, 0, 0, ntb_data->image,
                                    w * 2, h * item->bmp_cell);
                else if (!ntb_data->btn_down && ntb_data->nr_cols >= 2)
                    FillBoxWithBitmapPart (hdc, l, t, w, h, 0, 0, ntb_data->image,
                                    w, h * item->bmp_cell);
                else
                    FillBoxWithBitmapPart (hdc, l, t, w, h, 0, 0, ntb_data->image,
                                0, h * item->bmp_cell);
            }
            else
                FillBoxWithBitmapPart (hdc, l, t, w, h, 0, 0, ntb_data->image,
                                    0, h * item->bmp_cell);
        }

        if (ntb_data->style & NTBS_DRAWSTATES) {

            if ((ntb_data->style & NTBS_WITHTEXT) 
                            && !(ntb_data->style & NTBS_TEXTRIGHT)) {
                r = l + w;
                b = t + h;
            }
            else {
                r--; b--;
            }

            if (!(item->flags & NTBIF_DISABLED) && item == ntb_data->sel_item) {
                if (ntb_data->btn_down) {
                    pta.x = l; pta.y = t;
                    ptb.x = l; ptb.y = b;
                    line_a2b (hdc, &pta, &ptb, COLOR_darkgray);
                    pta.x = l; pta.y = t;
                    ptb.x = r; ptb.y = t;
                    line_a2b (hdc, &pta, &ptb, COLOR_darkgray);

                    pta.x = r; pta.y = t;
                    ptb.x = r; ptb.y = b;
                    line_a2b (hdc, &pta, &ptb, COLOR_lightwhite);
                    pta.x = l; pta.y = b;
                    ptb.x = r; ptb.y = b;
                    line_a2b (hdc, &pta, &ptb, COLOR_lightwhite);
                }
                else {
                    pta.x = l; pta.y = t;
                    ptb.x = l; ptb.y = b;
                    line_a2b (hdc, &pta, &ptb, COLOR_lightwhite);
                    pta.x = l; pta.y = t;
                    ptb.x = r; ptb.y = t;
                    line_a2b (hdc, &pta, &ptb, COLOR_lightwhite);

                    pta.x = r; pta.y = t;
                    ptb.x = r; ptb.y = b;
                    line_a2b (hdc, &pta, &ptb, COLOR_darkgray);
                    pta.x = l; pta.y = b;
                    ptb.x = r; ptb.y = b;
                    line_a2b (hdc, &pta, &ptb, COLOR_darkgray);
                }
            }
        }

        if (ntb_data->style & NTBS_WITHTEXT) {
            DWORD format = DT_SINGLELINE | DT_VCENTER;

            if (ntb_data->style & NTBS_TEXTRIGHT)
                format |= DT_LEFT;
            else
                format |= DT_CENTER;

            SetBkMode (hdc, BM_TRANSPARENT);
            DrawText (hdc, item->text, -1, &item->rc_text, format);
        }

        item = item->next;
    }
}

static NTBITEM* get_item_by_pos (PNTBCTRLDATA ntb_data, int posx, int posy)
{
    NTBITEM* item;

    item = ntb_data->head;
    while (item) {
        if (!(item->flags & NTBIF_DISABLED) && PtInRect (&item->rc_item, posx, posy)) {
            return item;
        }

        item = item->next;
    }

    return NULL;
}

static void append_new_item (HWND hwnd, NTBCTRLDATA* ntb_data, NTBITEM* new_item)
{
    HDC hdc;

    new_item->rc_item.top = MARGIN_VERT;
    if (ntb_data->tail == NULL)
        new_item->rc_item.left = MARGIN_HORZ;
    else
        new_item->rc_item.left = ntb_data->tail->rc_item.right + GAP_ITEM_ITEM_HORZ;

    hdc = GetClientDC (hwnd);

    switch (new_item->flags & NTBIF_TYPEMASK) {
    case NTBIF_PUSHBUTTON:
    case NTBIF_HOTSPOTBUTTON:
        if (ntb_data->style & NTBS_WITHTEXT) {
            if (ntb_data->style & NTBS_TEXTRIGHT) {

                SIZE sz_text;
                GetTextExtent (hdc, new_item->text, -1, &sz_text);

                new_item->rc_item.bottom 
                        = new_item->rc_item.top + ntb_data->h_cell + 1;

                new_item->rc_text.left = new_item->rc_item.left + ntb_data->w_cell + GAP_BMP_TEXT_HORZ;
                new_item->rc_text.right = new_item->rc_text.left + sz_text.cx;
                new_item->rc_text.top = new_item->rc_item.top;
                new_item->rc_text.bottom = new_item->rc_item.bottom;

                new_item->rc_item.right = new_item->rc_text.right + GAP_BMP_TEXT_HORZ + 1;
            }
            else {
                new_item->rc_item.right = new_item->rc_item.left + ntb_data->w_cell + 1;

                new_item->rc_text.left = new_item->rc_item.left;
                new_item->rc_text.right = new_item->rc_item.right;
                new_item->rc_text.top 
                        = new_item->rc_item.top + ntb_data->h_cell + GAP_BMP_TEXT_VERT;
                new_item->rc_text.bottom = new_item->rc_text.top + GetFontHeight (hdc);

                new_item->rc_item.bottom = new_item->rc_text.bottom + 1;
            }
        }
        else {
            new_item->rc_item.right = new_item->rc_item.left + ntb_data->w_cell + 1;
            new_item->rc_item.bottom = new_item->rc_item.top + ntb_data->h_cell + 1;
        }
        break;
                    
    case NTBIF_SEPARATOR:
    default:
        if (ntb_data->style & NTBS_DRAWSEPARATOR)
            new_item->rc_item.right = new_item->rc_item.left + WIDTH_SEPARATOR;
        else
            new_item->rc_item.right = new_item->rc_item.left + WIDTH_SEPARATOR * 2;
        new_item->rc_item.bottom = new_item->rc_item.top + ntb_data->h_cell;
        break;
    }

    ReleaseDC (hdc);

    new_item->next = NULL;
    if (ntb_data->tail == NULL) {
        ntb_data->head = ntb_data->tail = new_item;
    }
    else {
        ntb_data->tail->next = new_item;
        ntb_data->tail = new_item;
    }
    ntb_data->nr_items++;
}

static void recalc_items (HWND hwnd, NTBCTRLDATA* ntb_data)
{
    HDC hdc;
    PNTBITEM item, prev = NULL;

    hdc = GetClientDC (hwnd);

    item = ntb_data->head;

    while (item) {
        item->rc_item.top = MARGIN_VERT;

        if (prev)
            item->rc_item.left = prev->rc_item.right + GAP_ITEM_ITEM_HORZ;
        else
            item->rc_item.left = MARGIN_HORZ;

        switch (item->flags & NTBIF_TYPEMASK) {
        case NTBIF_PUSHBUTTON:
        case NTBIF_HOTSPOTBUTTON:
        if (ntb_data->style & NTBS_WITHTEXT) {
            if (ntb_data->style & NTBS_TEXTRIGHT) {

                SIZE sz_text;
                GetTextExtent (hdc, item->text, -1, &sz_text);

                item->rc_item.bottom 
                        = item->rc_item.top + ntb_data->h_cell + 1;

                item->rc_text.left = item->rc_item.left + ntb_data->w_cell + GAP_BMP_TEXT_HORZ + 1;
                item->rc_text.right = item->rc_text.left + sz_text.cx;
                item->rc_text.top = item->rc_item.top;
                item->rc_text.bottom = item->rc_item.bottom;

                item->rc_item.right = item->rc_text.right + GAP_BMP_TEXT_HORZ + 1;
            }
            else {
                item->rc_item.right = item->rc_item.left + ntb_data->w_cell + 1;