Panel and Its Derived Class

• Brief Introduction of Panel Class Control

• mPanel

  • Style of mPanel

  • Property of mPanel

  • Event of mPanel

  • Method of mPanel

  • Renderer of mPanel

  • Example of mPanel

• mCombobox

  • Style of mCombobox

  • Property of mCombobox

  • Event of mCombobox

  • Method of mCombobox

  • Renderers of mCombobox

  • Example of mCombobox

Brief Introduction of Panel Class Control

This class of control is the container class controls that accommodate other classes of controls, which are generally combination control class and main window class.

The class inheritance relation of panel and its derived class is as follows:

• mWidget

  • mPanel

    • mComboBox

    • mMainWnd

      • mDialogBox

mPanel

• Control name: NCSCTRL_PANEL

• English name: Panel

• Brief introduction: Container of other controls, mainly used for carrying out grouped operation to the controls. Through grouping the controls into the panel control, a group of controls can be conveniently displayed or hidden.

• Schematic diagram:

alt

Panel must exist in MainWnd, DialogBox, another Panel control or other controls. Besides other controls, it can contain content such as texts and images etc.

Style of mPanel

It is inherited from the style of mWidget.

Property of mPanel

It is inherited from the property of mWidget.

Event of mPanel

It is inherited from the event of mWidget.

Method of mPanel

It is inherited from the method of mWidget.

The class does not have newly added methods

Renderer of mPanel

It is inherited from the renderer of mWidget.

mPanel does not have newly added renderer method

Example of mPanel

This example demonstrates how to use panel to group multiple controls to the users.

alt

Figure 1 Output of panel Program

List 1 panel.c

/*
** panel.c: Sample program for mGNCS Programming Guide
**      The demo application for Panel.
**
** Copyright (C) 2009 ~ 2019 FMSoft Technologies.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

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

#include <mgncs/mgncs.h>
// END_OF_INCS

#define     ID_PANEL_GROUP1     101
#define     ID_PANEL_GROUP2     102

#define     ID_RED1             201
#define     ID_RED2             202
#define     ID_BLUE1            301
#define     ID_BLUE2            302

// START_OF_REDGROUP
static NCS_WND_TEMPLATE _ctrl_group1[] = {
    {
        NCSCTRL_BUTTON,
        ID_RED1,
        30, 40, 80, 30,
        WS_VISIBLE,
        WS_EX_NONE,
        "RED 1",
        NULL,
        NULL,
        NULL,
        NULL,
        0,
    },
    {
        NCSCTRL_BUTTON,
        ID_RED2,
        30, 110, 80, 30,
        WS_VISIBLE,
        WS_EX_NONE,
        "RED 2",
        NULL,
        NULL,
        NULL,
        NULL,
        0,
    },
};
// END_OF_REDGROUP

// START_OF_BLUEGROUP
static NCS_WND_TEMPLATE _ctrl_group2[] = {
    {
        NCSCTRL_BUTTON,
        ID_BLUE1,
        30, 40, 80, 30,
        WS_VISIBLE,
        WS_EX_NONE,
        "BLUE 1",
        NULL,
        NULL,
        NULL,
        NULL,
        0,
    },
    {
        NCSCTRL_BUTTON,
        ID_BLUE2,
        30, 110, 80, 30,
        WS_VISIBLE,
        WS_EX_NONE,
        "BLUE 2",
        NULL,
        NULL,
        NULL,
        NULL,
        0,
    },
};
// END_OF_BLUEGROUP

// START_OF_PANEL
static NCS_WND_TEMPLATE panel_tmpl[] = {
    {
        NCSCTRL_PANEL,
        ID_PANEL_GROUP1,
        10, 10, 140, 180,
        WS_VISIBLE,
        WS_EX_NONE,
        "Red Group",
        NULL,
        NULL,
        NULL,
        _ctrl_group1,
        sizeof(_ctrl_group1)/sizeof(NCS_WND_TEMPLATE),
        0,
        0xFF0000FF,
    },
    {
        NCSCTRL_PANEL,
        ID_PANEL_GROUP2,
        160, 10, 140, 180,
        WS_VISIBLE,
        WS_EX_NONE,
        "Blue Group",
        NULL,
        NULL,
        NULL,
        _ctrl_group2,
        sizeof(_ctrl_group2)/sizeof(NCS_WND_TEMPLATE),
        0,
        0xFFFF0000,
    },
};
// END_OF_PANEL

// START_OF_HANDLERS
static BOOL mainwnd_onCreate(mWidget* self, DWORD add_data)
{
    _c(self)->addChildren(self, panel_tmpl, \
        sizeof(panel_tmpl)/sizeof(NCS_WND_TEMPLATE));
    return TRUE;
}

static void mainwnd_onClose(mWidget* self, int message)
{
    DestroyMainWindow(self->hwnd);
    PostQuitMessage(0);
}


static NCS_EVENT_HANDLER mainwnd_handlers[] = {
    {MSG_CREATE, mainwnd_onCreate},
    {MSG_CLOSE, mainwnd_onClose},
    {0, NULL}
};
// END_OF_HANDLERS

int MiniGUIMain(int argc, const char* argv[])
{
    MSG Msg;

    ncsInitialize ();

    mWidget* mainwnd = ncsCreateMainWindow (
        NCSCTRL_MAINWND, "Panel Demo",
        WS_CAPTION | WS_BORDER | WS_VISIBLE,
        WS_EX_NONE,
        1,
        0, 0, 320,240,
        HWND_DESKTOP,
        0, 0,
        NULL,
        NULL,
        mainwnd_handlers,
        0);

// START_OF_MSGLOOP
    while (GetMessage (&Msg, mainwnd->hwnd)) {
        TranslateMessage (&Msg);
        DispatchMessage (&Msg);
    }
// END_OF_MSGLOOP

    MainWindowThreadCleanup (mainwnd->hwnd);
    ncsUninitialize ();

    return 0;
}

mCombobox

• Control name: NCSCTRL_COMBOBOX

• English name: Combobox

• Brief introduction: An edit box and a list box are integrated. Users can directly key text in the edit box and can select an existing item from the options listed in the list box. Input and selection functions of users can be well completed. Address column in general browser is a good application.

alt

Style of mCombobox

It is inherited from the style of mPanel.

Style name	miniStudio property name	Explanation
NCSS_CMBOX_SIMPLE	Type->Simple	Simple combination box
NCSS_CMBOX_DROPDOWNLIST	Type->DropDownList	Dropdown combination box
NCSS_CMBOX_SORT	Sort->TRUE	Character string automatic sorting
NCSS_CMBOX_EDITNOBORDER	EditHasBorder->FALSE	The edit box does not have border
NCSS_CMBOX_EDITBASELINE	EditHasBaseLine->TRUE	The edit box displays underlined characters
NCSS_CMBOX_READONLY	ReadOnly	Content displayed by the edit box is read only
NCSS_CMBOX_UPPERCASE	Case->Upper	All the display content of the edit box is converted to capital letter display
NCSS_CMBOX_LOWERCASE	Case->Lower	All the display content of the edit box is converted to lowercase letter display
NCSS_CMBOX_AUTOFOCUS	AutoFocus->TRUE	The control gets focus and automatically transfers to the edit box

Property of mCombobox

It is inherited from the property of mPanel.

Property name	miniStudio property name	Type	RW	Explanation
NCSP_COMB_DROPDOWNHEIGHT	DropDownHeight	int	RW	Height of the dropdown list
NCSP_COMB_ITEMHEIGHT	ItemHeight	int	RW	Height of the list item
NCSP_COMB_ITEMCOUNT	ItemCount	int	RO	Number of the list items
NCSP_COMB_TEXTLIMIT	TextLimit	int	RW	Limit of the edit box
NCSP_COMB_SELECT	--	int	RW	Selection items index

Event of mCombobox

It is inherited from the event of mPanel.

Event ID	Parameter	Explanation
NCSN_CMBOX_SELCHANGE	--	The selected item changes
NCSN_CMBOX_SETFOCUS	--	Get focus
NCSN_CMBOX_KILLFOCUS	--	Lose focus
NCSN_CMBOX_EDITCHANGE	--	Content of the edit box changes
NCSN_CMBOX_DROPDOWN	--	Dropdown list pops up
NCSN_CMBOX_CLOSEUP	--	Dropdown list is closed
NCSN_CMBOX_SELECTOK	--	Select an item when the dropdown list is closed
NCSN_CMBOX_SELECTCANCEL	--	No selection when the dropdown list is closed

Method of mCombobox

It is inherited from the method of mPanel.

addItem

BOOL addItem(mCombobox *self, const char *item, DWORD addData);

• Parameter:

• item – add the content of selected item

• addData – additional data of the item

• Explanation: Add selected items to the dropdown list of combobox

• Example:

char *items = {
    "first item --- Chinese",
    "second item --- German",
    "third item -- English"
};
//Add three items to the dropdown list
for (i = 0; i < 3; i++)
{
    _c(combo)->addItem(combo, items[i]， 0);
}

removeItem

 BOOL removeItem(mCombobox *self, int index);

• Parameter:

• index – index of the items to be deleted

• Explanation: Delete certain selected item from the dropdown list of combobox

• Example:

//Delete the first item of the dropdown list
_c(combo)->removeItem(combo, 0);

setItem

BOOL setItem(mCombobox *self, int index, const char *item); 

• Parameter:

• index – index of the items to be modified

• Explanation: Modify content of certain selected item in the dropdown list of combobox

• Example:

//Modify the content of the first item in the dropdown list to "new content"
_c(combo)->setItem(combo, 0, "new content");

getItem

const char* getItem(mCombobox *self, int index); 

• Parameter:

• index – index of the items to get

• Explanation: Get content of certain selected item in the dropdown list of combobox

• Example:

const char *item_1 = _c(combo)->getItem(combo, 0);

setAddData

void* setAddData(mCombobox *self, int index, DWORD addData); 

• Parameter:

• index – index of the items to set additional data

• addData – information of additional data

• Explanation: Set additional data of certain selected item in the dropdown list of combobox

• Example:

PBITMAP pbmp;
LoadBitmap (......);
_c(combo)->setAddData(combo, 0, (DWORD)pbmp);

getAddData

DWORD getAddData(mCombobox *self, int index); 

• Parameter:

• index – index of the items to get additional data

• Explanation: Get additional data of certain selected item in the dropdown list of combobox

• Example:

DWORD add = _c(combo)->getAddData(combo, 0);

Renderers of mCombobox

They are inherited from the renderers of mPanel.

mCombobox Classic Renderer

Property name	miniStudio property name	Type	Schematic diagram	Explanation
NCS_BGC_3DBODY	ColorBg3DBody	DWORD(ARGB)		Draw color of the dropdown button
NCS_FGC_WINDOW	ColorFgWindow	DWORD(ARGB)		Draw color of the arrow of the dropdown button

mCombobox Fashion Renderer

| Property name | miniStudio property name | Type | Schematic diagram | Explanation | | NCS_BGC_3DBODY | ColorBg3DBody | DWORD(ARGB) | | Draw color of the dropdown button | | NCS_FGC_WINDOW | ColorFgWindow | DWORD(ARGB) | | Draw color of the arrow of the dropdown button | | NCS_METRICS_3DBODY_ROUNDX | RoundX | int | | Round corner x radius of the dropdown button | | NCS_METRICS_3DBODY_ROUNDY | RoundY | int | | Round corner y radius of the dropdown button | | NCS_MODE_BGC | GradientMode | int | | Drawing mode of the gradual change effect (horizontal gradual change or vertical gradual change) |

mCombobox Skin Renderer

Refer to [Appendix B](MStudioMGNCSV1dot0PGENAppB][Image Specification]] in the Specification for the Image Resource Used by Skin Renderer ([[MStudioMGNCSV1dot0PGENAppB)).

mCombobox Flat Renderer

Property name	miniStudio property name	Type	Schematic diagram	Explanation
NCS_BGC_3DBODY	ColorBg3DBody	DWORD(ARGB)		Draw color of the dropdown button
NCS_FGC_WINDOW	ColorFgWindow	DWORD(ARGB)		Draw color of the arrow of the dropdown button

Example of mCombobox

alt

List 1 combobox.c

/*
** combobox.c: Sample program for mGNCS Programming Guide
**      Using Combobox.
**
** Copyright (C) 2009 ~ 2019 FMSoft Technologies.
*/

#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_BTN  201
#define ID_NAME 202
#define ID_TYPE 203
#define ID_LOCA 204

static const char *file_type[] =
{
    "All File(*.*)",
    "Text File(*.txt)",
    "Bin File(*.bin)",
};

static BOOL mymain_onCreate (mWidget* _this, DWORD add_data)
{
    int i;

    // get combobox
    mCombobox *com = (mCombobox *)ncsGetChildObj(_this->hwnd, ID_TYPE);

    // add items
    for (i = 0; i < sizeof(file_type)/sizeof(file_type[0]); i++)
    {
        _c(com)->addItem(com, file_type[i], 0);
    }

    // set the selected item
    _c(com)->setProperty(com, NCSP_COMB_SELECT, 1);

    return TRUE;
}

static void mymain_onClose (mWidget* _this, int message)
{
    DestroyMainWindow (_this->hwnd);
    PostQuitMessage (_this->hwnd);
}

static void mymain_onPaint(mWidget *self, HDC hdc, const CLIPRGN* inv)
{
    SetBkMode (hdc, BM_TRANSPARENT);
    TextOut (hdc, 40, 10, "New File Wizard ...");
}

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

static void btn_onClicked(mWidget* _this, int id, int nc, HWND hCtrl)
{
    if(nc == NCSN_WIDGET_CLICKED)
    {
        PostMessage(GetParent(_this->hwnd), MSG_CLOSE, 0, 0);
    }
};

static NCS_EVENT_HANDLER btn_handlers[] =
{
    {NCS_NOTIFY_CODE(NCSN_WIDGET_CLICKED), btn_onClicked},
    {0, NULL}
};

static NCS_RDR_INFO btn_rdr_info[] =
{
    {"fashion","fashion", NULL}
};

//START_OF_INITIAL_PROPS
static NCS_PROP_ENTRY combo_props[] =
{
    { 0, 0 }
};
//END_OF_INITIAL_PROPS

//START_OF_TEMPLATE
static NCS_WND_TEMPLATE _ctrl_templ[] =
{
    {
        NCSCTRL_STATIC,
        0,
        10, 40, 70, 30,
        WS_VISIBLE,
        WS_EX_NONE,
        "Name:",
        NULL,
        NULL,
        NULL, NULL, 0, 0
    },
    {
        NCSCTRL_SLEDIT,
        ID_NAME,
        85, 45, 160, 25,
        WS_VISIBLE | WS_BORDER,
        WS_EX_NONE,
        "",
        combo_props,
        NULL,
        NULL, NULL, 0, 0
    },
    {
        NCSCTRL_STATIC,
        0,
        10, 80, 70, 30,
        WS_VISIBLE,
        WS_EX_NONE,
        "Type:",
        NULL,
        NULL,
        NULL, NULL, 0, 0
    },
    {
        NCSCTRL_COMBOBOX,
        ID_TYPE,
        85, 85, 160, 25,
        WS_VISIBLE | NCSS_CMBOX_DROPDOWNLIST,
        WS_EX_NONE,
        "",
        combo_props,
        NULL,
        NULL, NULL, 0, 0
    },
    {
        NCSCTRL_STATIC,
        0,
        10, 120, 70, 30,
        WS_VISIBLE,
        WS_EX_NONE,
        "Location:",
        NULL,
        NULL,
        NULL, NULL, 0, 0
    },
    {
        NCSCTRL_SLEDIT,
        ID_LOCA,
        85, 125, 160, 25,
        WS_VISIBLE | WS_BORDER,
        WS_EX_NONE,
        "",
        combo_props,
        NULL,
        NULL, NULL, 0, 0
    },
    {
        NCSCTRL_BUTTON,
        ID_BTN,
        50, 170, 80, 25,
        WS_VISIBLE | NCSS_NOTIFY,
        WS_EX_NONE,
        "Finish",
        NULL,
        btn_rdr_info,
        btn_handlers, NULL, 0, 0
    },
    {
        NCSCTRL_BUTTON,
        ID_BTN,
        170, 170, 80, 25,
        WS_VISIBLE | NCSS_NOTIFY,
        WS_EX_NONE,
        "Cancel",
        NULL,
        btn_rdr_info,
        btn_handlers, NULL, 0, 0
    },

};
//END_OF_TEMPLATE

static NCS_MNWND_TEMPLATE mymain_templ =
{
    NCSCTRL_DIALOGBOX,
    1,
    0, 0, 320, 240,
    WS_CAPTION | WS_BORDER | WS_VISIBLE,
    WS_EX_NONE,
    "Combobox",
    NULL,
    NULL,
    mymain_handlers,
    _ctrl_templ,
    sizeof(_ctrl_templ)/sizeof(NCS_WND_TEMPLATE),
    0,
    0, 0,
};

int MiniGUIMain (int argc, const char* argv[])
{
    ncsInitialize ();

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

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

    ncsUninitialize ();

    return 0;
}

---

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