appearance.c

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/*
 * COPYRIGHT:       See COPYING in the top level directory
 * PROJECT:         ReactOS Display Control Panel
 * FILE:            dll/cpl/desk/appearance.c
 * PURPOSE:         Appearance property page
 *
 * PROGRAMMERS:     Trevor McCort (lycan359@gmail.com)
 *                  Timo Kreuzer (timo[dot]kreuzer[at]web[dot]de)
 */

#include "desk.h"

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

static void
AppearancePage_ShowColorScemes(GLOBALS *g, HWND hwndColor, INT ThemeId)
{
    int i, iListIndex;

    SendMessage(hwndColor, CB_RESETCONTENT , 0, 0);

    if(g->bThemeActive == FALSE)
    {
        for(i = 0; i < g_TemplateCount; i++)
        {
            iListIndex = SendMessage(hwndColor, CB_ADDSTRING, 0, (LPARAM)g_ColorSchemes[i].strLegacyName);
            SendMessage(hwndColor, CB_SETITEMDATA, iListIndex, i);
            if (lstrcmp(g_ColorSchemes[i].strKeyName, g->strSelectedStyle) == 0)
            {
                g->SchemeId = i;
                SendMessage(hwndColor, CB_SETCURSEL, (WPARAM)iListIndex, 0);
            }
        }
    }
    else
    {
        PTHEME pTheme = (PTHEME)DSA_GetItemPtr(g->Themes, ThemeId);
        for(i = 0; i < pTheme->ColorsCount; i++)
        {
            PTHEME_STYLE pStyleName;
            pStyleName = (PTHEME_STYLE)DSA_GetItemPtr(pTheme->Colors, i);
            iListIndex = SendMessage(hwndColor, CB_ADDSTRING, 0, (LPARAM)pStyleName->DisplayName);
            SendMessage(hwndColor, CB_SETITEMDATA, iListIndex, i);
            if(i == 0 || (g->pszColorName && wcscmp(pStyleName->StlyeName, g->pszColorName) == 0))
            {
                g->SchemeId = i;
                SendMessage(hwndColor, CB_SETCURSEL, (WPARAM)iListIndex, 0);
            }
        }
    }
}

static INT_PTR
AppearancePage_OnInit(HWND hwndDlg)
{
    INT i, /*TemplateCount,*/ iListIndex;
    HWND hwndColor, hwndTheme;
    GLOBALS *g;

    g = (GLOBALS*)LocalAlloc(LPTR, sizeof(GLOBALS));
    if (g == NULL)
        return FALSE;

    SetWindowLongPtr(hwndDlg, DWLP_USER, (LONG_PTR)g);

    LoadCurrentScheme(&g->Scheme);
    g->SchemeAdv = g->Scheme;
    g->bThemeChanged = FALSE;
    g->bSchemeChanged = FALSE;
    g->hBoldFont = g->hItalicFont = NULL;
    g->hbmpColor[0] = g->hbmpColor[1] = g->hbmpColor[2] = NULL;
    g->bInitializing = FALSE;
    g->bThemeActive = FALSE;

    LoadThemes(g);

    /*TemplateCount = */ LoadSchemePresetEntries(g->strSelectedStyle);

    hwndColor = GetDlgItem(hwndDlg, IDC_APPEARANCE_COLORSCHEME);
    g->SchemeId = -1;
    g->bInitializing = TRUE;

    hwndTheme = GetDlgItem(hwndDlg, IDC_APPEARANCE_VISUAL_STYLE);
    for(i = 0; i < g->ThemesCount; i++)
    {
        PTHEME pTheme = (PTHEME)DSA_GetItemPtr(g->Themes, i);
        iListIndex = SendMessage(hwndTheme, CB_ADDSTRING, 0, (LPARAM)pTheme->displayName);
        SendMessage(hwndTheme, CB_SETITEMDATA, iListIndex, i);
        if((!pTheme->themeFileName && !IsThemeActive()) || 
           (pTheme->themeFileName && g->pszThemeFileName && wcscmp(pTheme->themeFileName, g->pszThemeFileName) == 0 ))
        {
            g->ThemeId = i;
            g->bThemeActive = (pTheme->themeFileName != NULL);
            SendMessage(hwndTheme, CB_SETCURSEL, (WPARAM)iListIndex, 0);
            AppearancePage_ShowColorScemes(g, hwndColor, i);
        }

    }

    g->bInitializing = FALSE;

    return FALSE;
}

static VOID
AppearancePage_OnDestroy(HWND hwndDlg, GLOBALS *g)
{
    LocalFree(g);
}

static INT
GetSelectedId(HWND hwndDlg, int nIDDlgItem)
{
    HWND hwndCombo;
    INT sel;

    hwndCombo = GetDlgItem(hwndDlg, nIDDlgItem);
    sel = SendMessage(hwndCombo, CB_GETCURSEL, 0, 0);
    if (sel == CB_ERR)
        return -1;
    return (INT)SendMessage(hwndCombo, CB_GETITEMDATA, (WPARAM)sel, 0);
}

INT_PTR CALLBACK
AppearancePageProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    GLOBALS *g;
    LPNMHDR lpnm;

    g = (GLOBALS*)GetWindowLongPtr(hwndDlg, DWLP_USER);

    switch (uMsg)
    {
        case WM_INITDIALOG:
            return AppearancePage_OnInit(hwndDlg);

        case WM_DESTROY:
            AppearancePage_OnDestroy(hwndDlg, g);
            break;

        case WM_COMMAND:
            switch (LOWORD(wParam))
            {
                case IDC_APPEARANCE_EFFECTS:
                    if (DialogBoxParam(hApplet, MAKEINTRESOURCE(IDD_EFFAPPEARANCE),
                                       hwndDlg, EffAppearanceDlgProc, (LPARAM)g) == IDOK)
                    {
                        PropSheet_Changed(GetParent(hwndDlg), hwndDlg);
                        g->Scheme = g->SchemeAdv;
                        g->bSchemeChanged = TRUE;
                        // Effects dialog doesn't change the color scheme, therefore the following lines are commented out, until fixed finally
                        //g->SchemeId = -1; /* Customized */
                        //SendDlgItemMessage(hwndDlg, IDC_APPEARANCE_COLORSCHEME, CB_SETCURSEL, (WPARAM)-1, 0);
                        //SetDlgItemText(hwndDlg, IDC_APPEARANCE_COLORSCHEME, TEXT(""));
                        SendDlgItemMessage(hwndDlg, IDC_APPEARANCE_PREVIEW, PVM_UPDATETHEME, 0, (LPARAM)&g->Scheme);
                    }
                    break;

                case IDC_APPEARANCE_ADVANCED:
                    if (DialogBoxParam(hApplet, MAKEINTRESOURCE(IDD_ADVAPPEARANCE),
                                       hwndDlg, AdvAppearanceDlgProc, (LPARAM)g) == IDOK)
                    {
                        PropSheet_Changed(GetParent(hwndDlg), hwndDlg);
                        g->bSchemeChanged = TRUE;
                        g->Scheme = g->SchemeAdv;
                        g->SchemeId = -1;   /* Customized */
                        g_GlobalData.desktop_color = g->Scheme.crColor[COLOR_DESKTOP];

                        SendDlgItemMessage(hwndDlg, IDC_APPEARANCE_COLORSCHEME, CB_SETCURSEL, (WPARAM)-1, 0);
                        SetDlgItemText(hwndDlg, IDC_APPEARANCE_COLORSCHEME, TEXT(""));

                        SendDlgItemMessage(hwndDlg, IDC_APPEARANCE_PREVIEW, PVM_UPDATETHEME, 0, (LPARAM)&g->Scheme);
                    }
                    break;

                case IDC_APPEARANCE_COLORSCHEME:
                    if (HIWORD(wParam) == CBN_SELCHANGE && !g->bInitializing)
                    {
                        INT SchemeId = GetSelectedId(hwndDlg, IDC_APPEARANCE_COLORSCHEME);

                        PropSheet_Changed(GetParent(hwndDlg), hwndDlg);

                        if(g->bThemeActive == FALSE)
                        {
                            COLOR_SCHEME Scheme;

                            g->bSchemeChanged = TRUE;
                            if (SchemeId != -1 && LoadSchemeFromReg(&Scheme, SchemeId))
                            {
                                g->Scheme = Scheme;
                                g_GlobalData.desktop_color = g->Scheme.crColor[COLOR_DESKTOP];
                                SendDlgItemMessage(hwndDlg, IDC_APPEARANCE_PREVIEW, PVM_UPDATETHEME, 0, (LPARAM)&Scheme);
                            }
                        }
                        else
                        {
                            g->bThemeChanged = TRUE;
                        }
                    }
                    break;
                case IDC_APPEARANCE_VISUAL_STYLE:
                    if (HIWORD(wParam) == CBN_SELCHANGE && !g->bInitializing)
                    {
                        INT ThemeId = GetSelectedId(hwndDlg, IDC_APPEARANCE_VISUAL_STYLE);
                        HWND hwndColor = GetDlgItem(hwndDlg, IDC_APPEARANCE_COLORSCHEME);

                        PropSheet_Changed(GetParent(hwndDlg), hwndDlg);

                        g->bThemeActive = (ThemeId!=0);
                        g->bThemeChanged = TRUE;
                        AppearancePage_ShowColorScemes(g, hwndColor, ThemeId);
                    }
                    break;
            }
            break;

        case WM_NOTIFY:
            lpnm = (LPNMHDR)lParam;
            switch (lpnm->code)
            {
                case PSN_APPLY:

                    g->ThemeId = GetSelectedId(hwndDlg, IDC_APPEARANCE_VISUAL_STYLE);
                    g->SchemeId = GetSelectedId(hwndDlg, IDC_APPEARANCE_COLORSCHEME);

                    if(g->bSchemeChanged)
                    {
                        ApplyScheme(&g->Scheme, g->SchemeId);
                    }

                    if(g->bThemeChanged)
                    {
                        PTHEME pTheme = (PTHEME)DSA_GetItemPtr(g->Themes, g->ThemeId);
                        ActivateTheme(pTheme, g->SchemeId, 0);
                    }

                    SendDlgItemMessage(hwndDlg, IDC_APPEARANCE_PREVIEW, PVM_UPDATETHEME, 0, (LPARAM)&g->Scheme);
                    g->bThemeChanged = FALSE;
                    g->bSchemeChanged = FALSE;
                    SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT, (LONG_PTR)PSNRET_NOERROR);
                    return TRUE;

                case PSN_KILLACTIVE:
                    SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT, (LONG_PTR)FALSE);
                    return TRUE;

                case PSN_SETACTIVE:
                    if (g->Scheme.crColor[COLOR_DESKTOP] != g_GlobalData.desktop_color)
                    {
                        g->Scheme.crColor[COLOR_DESKTOP] = g_GlobalData.desktop_color;
                        SendDlgItemMessage(hwndDlg, IDC_APPEARANCE_PREVIEW, PVM_UPDATETHEME, 0, (LPARAM)&g->Scheme);
                    }
                    break;
            }
            break;
    }

    return FALSE;
}