window.h

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#ifndef __CH_WINDOW_H__
#define __CH_WINDOW_H__
 
#include <stdint.h>
#include "../chitralekha.h"
#include "../color.h"
#include "../draw.h"
#include "base.h"
#include "list.h"
#include <setjmp.h>
 
#define CHITRALEKHA_DEFAULT_WIN_WIDTH    400
#define CHITRALEKHA_DEFAULT_WIN_HEIGHT   300
#define CHITRALEKHA_WINDOW_DEFAULT_PAD_Y 26
#define CHITRALEKHA_WINDOW_DEFAULT_PAD_X 1
 
#define WINDOW_GLOBAL_CONTROL_CLOSE    1
#define WINDOW_GLOBAL_CONTROL_MAXIMIZE 2
#define WINDOW_GLOBAL_CONTROL_MINIMIZE 3
#define WINDOW_GLOBAL_CONTROL_CUSTOM   4
 
#define WINDOW_FLAG_MOVABLE            (1 << 0)
#define WINDOW_FLAG_STATIC             (1 << 1)
#define WINDOW_FLAG_ALWAYS_ON_TOP      (1 << 2)
#define WINDOW_FLAG_NON_RESIZABLE      (1 << 3)
#define WINDOW_FLAG_BROADCAST_LISTENER (1 << 4)
#define WINDOW_FLAG_ANIMATED           (1 << 5)
#define WINDOW_FLAG_BLOCKED            (1 << 6)
#define WINDOW_FLAG_MESSAGEBOX         (1 << 7)
#define WINDOW_FLAG_DIALOGBOX          (1 << 8)
#define WINDOW_FLAG_ANIMATION_FADE_IN  (1 << 9)
#define WINDOW_FLAG_ANIMATION_FADE_OUT (1 << 10)
#define WINDOW_FLAG_POPUP              (1 << 11)
#define WINDOW_FLAG_GLASS              (1 << 12)
 
#define CHITRALEKHA_WIDGET_TYPE_CONTROL (1 << 1)
#define CHITRALEKHA_WIDGET_TYPE_POPUP   (1 << 2)
 
#define CHITRALEKHA_WIDGET_SCROLL_HORIZONTAL 0
#define CHITRALEKHA_WIDGET_SCROLL_VERTICAL   1
 
#define WINDOW_HANDLE_TYPE_NORMAL 1
#define WINDOW_HANDLE_TYPE_POPUP  2
 
//#pragma pack(push,1)
typedef struct _ChSharedWin_ {
    ChRect rect[256];
    uint32_t rect_count;
    bool dirty;
    bool updateEntireWindow;
    int x;
    int y;
    int width;
    int height;
    bool alpha;
    bool hide;
    double alphaValue;
    bool windowReady;
} ChSharedWinInfo;
 
static inline bool ChSharedFlagLoad(const bool* flag) {
    return __atomic_load_n(flag, __ATOMIC_ACQUIRE);
}
 
static inline void ChSharedFlagStore(bool* flag, bool value) {
    __atomic_store_n(flag, value, __ATOMIC_RELEASE);
}
//#pragma pack(pop)
 
typedef struct _chwin_ {
    uint16_t flags;
    uint32_t* buffer;
    void* sharedwin;
    ChCanvas* canv;
    char* title;
    ChSharedWinInfo* info;
    ChitralekhaApp* app;
    uint32_t handle;
    uint32_t color;
    bool focused;
    list_t* GlobalControls;
    list_t* widgets;
    list_t* subwindow;
    list_t* popup;
    struct _chwin_* parent;
    void* currentPopupMenu; //points to currently working menu
    void* selectedMenuItem;
    void* focusedWidget;
    jmp_buf jump;
    void (*ChWinPaint)(struct _chwin_* win);
    void (*ChCloseWin)(struct _chwin_* win);
} ChWindow;
 
typedef struct _ChWidget_ {
    int x;
    int y;
    int w;
    int h;
    int lastMouseX;
    int lastMouseY;
    bool clicked;
    bool hover;
    bool hoverPainted;
    bool KillFocus;
    bool visible;
    bool touched;
    uint8_t type;
    void (*ChActionHandler)(struct _ChWidget_* widget, ChWindow* win);
    void (*ChMouseEvent)(struct _ChWidget_* widget, ChWindow* win, int x, int y, int button);
    void (*ChTouchEvent)(struct _ChWidget_* widget, ChWindow* win, int x, int y);
    void (*ChScrollEvent)(struct _ChWidget_* widget,
                          ChWindow* win,
                          int scrollval,
                          uint8_t scrolltype);
    void (*ChPaintHandler)(struct _ChWidget_* widget, ChWindow* win);
    void (*ChDestroy)(struct _ChWidget_* widget, ChWindow* win);
} ChWidget;
 
typedef struct _global_ctrl_ {
    int x;
    int y;
    int w;
    int h;
    uint8_t type;
    bool hover;
    bool clicked;
    uint32_t fillColor;
    uint32_t outlineColor;
    uint32_t hoverOutlineColor;
    uint32_t clickedFillColor;
    uint32_t clickedOutlineColor;
    void (*ChGlobalButtonPaint)(ChWindow* win, struct _global_ctrl_* glbl);
    void (*ChGlobalMouseEvent)(ChWindow* win, struct _global_ctrl_* glbl, int x, int y, int button);
    void (*ChGlobalTouchEvent)(ChWindow* win, struct _global_ctrl_* glbl, int x, int y);
    void (*ChGlobalActionEvent)(ChWindow* win, struct _global_ctrl_* glbl);
} ChWinGlobalControl;
 
#pragma pack(push, 1)
typedef struct _popup_sh_win_ {
    ChRect rect[100];
    uint32_t rect_count;
    int x;
    int y;
    int w;
    int h;
    bool dirty;
    bool close;
    bool hide;
    bool popuped;
    bool alpha;
} ChPopupSharedWin;
#pragma pack(pop)
 
typedef struct _popup_win_ {
    ChWidget wid;
    ChPopupSharedWin* shwin;
    uint32_t* buffer;
    uint16_t shwinKey;
    uint16_t buffWinKey;
    list_t* widgets;
    int handle;
    ChCanvas* canv;
    bool hidden;
    void (*ChPopupWindowPaint)(struct _popup_win_* pwin, ChWindow* win);
} ChPopupWindow;
 
#ifdef __cplusplus
XE_EXTERN {
#endif
 
    /*
    * ChCreateWindow -- create a new chitralekha window
    * @param app -- pointer to Chitralekha app
    * @param attrib -- window attributes
    * @param title -- title of the window
    * @param x -- x position of the window
    * @param y -- y position of the window
    * @param w -- width of the window
    * @param h -- height of the window
    */
    XE_LIB ChWindow* ChCreateWindow(
        ChitralekhaApp * app, uint16_t attrib, char* title, int x, int y, int w, int h);
 
    /*
    * ChWindowAddSubWindow -- add sub window to parent window list
    * @param parent -- Pointer to main window
    * @param win -- Pointer to sub window
    */
    XE_LIB void ChWindowAddSubWindow(ChWindow * parent, ChWindow * win);
 
    /*
    * ChWindowBroadcastIcon -- broadcast icon information to
    * broadcast listener
    * @param app -- pointer to chitralekha application
    * @param iconfile -- path of the icon file, supported formats
    * are : 32bit- bmp file
    */
    XE_LIB void ChWindowBroadcastIcon(ChitralekhaApp * app, char* iconfile);
 
    /*
    * ChWindowPaint -- paint the entire window
    * @param win -- Pointer to window
    */
    XE_LIB void ChWindowPaint(ChWindow * win);
 
    /*
    * ChWindowUpdate -- update a portion or whole window
    * @param win -- Pointer to window
    * @param x -- x position of the dirty area
    * @param y -- y position of the dirty area
    * @param w - width of the dirty area
    * @param h -- height of the dirty area
    * @param updateEntireWin -- update entire window
    * @param dirty -- dirty specifies small areas of the window
    */
    XE_LIB void ChWindowUpdate(
        ChWindow * win, int x, int y, int w, int h, bool updateEntireWin, bool dirty);
 
    /*
    * ChWindowHide -- hide the window
    * basically it sends command to deodhai
    * @param win -- Pointer to window structure
    */
    XE_LIB void ChWindowHide(ChWindow * win);
 
    /*
    * ChGetWindowHandle -- get a specific window handle from
    * the system looking by its name
    * @param app -- Pointer to application instance
    * @param title -- desired window title
    */
    XE_LIB uint32_t ChGetWindowHandle(ChitralekhaApp * app, char* title);
    /*
    * ChWindowHandleMouse -- handle mouse event
    * @param win -- Pointer to window
    * @param x -- X coord of the mouse
    * @param y -- Y coord of the mouse
    * @param button -- button state of the mouse
    */
    XE_LIB void ChWindowHandleMouse(ChWindow * win, int x, int y, int button);
 
    /*
     * ChWindowHandleTouch -- handle touch event
     * @param win -- Pointer to window
     * @param x -- X coord of the mouse
     * @param y -- Y coord of the mouse
     * @param button -- button state of the mouse
     */
    XE_LIB void ChWindowHandleTouch(ChWindow * win, int x, int y, int button);
 
    /*
 * ChWindowSetFocused -- bring a window to focused state
 * @param win -- Pointer to window
 */
    XE_LIB void ChWindowSetFocused(ChWindow * win);
    /*
    * ChWindowHandleFocus -- handle focus changed events
    * @param win -- Pointer to window
    * @param focus_val -- focus bit, 1 -- focused, 0 -- not focused
    * @param handle -- handle number of the window
    */
    XE_LIB void ChWindowHandleFocus(ChWindow * win, bool focus_val, uint32_t handle);
 
    /*
    * ChWindowGetBackgroundColor -- returns the current
    * background color
    * @param win -- Pointer to Chitralekha Window
    */
    XE_LIB uint32_t ChWindowGetBackgroundColor(ChWindow * win);
 
    /*
    * ChWindowAddWidget -- adds a widget to window
    * @param win -- Pointer to root window
    * @param wid -- Pointer to widget needs to be added
    */
    XE_LIB void ChWindowAddWidget(ChWindow * win, ChWidget * wid);
 
    /*
    * ChWindowAddSubWindow -- add sub window to parent window list
    * @param parent -- Pointer to main window
    * @param win -- Pointer to sub window
    */
    XE_LIB void ChWindowAddSubWindow(ChWindow * parent, ChWindow * win);
 
    /*
    * ChGetWindowByHandle -- returns window by looking sub windows list
    * @param mainWin -- pointer to main window
    * @param handle -- Handle of the window
    */
    XE_LIB ChWindow* ChGetWindowByHandle(ChWindow * mainWin, int handle);
 
    /*
    * ChGetPopupWindowByHandle -- looks for popup window by its handle
    * @param mainWin -- Pointer to main window
    * @param handle -- Handle of the popup window
    */
    XE_LIB ChWindow* ChGetPopupWindowByHandle(ChWindow * mainWin, int handle);
 
    /*
    * ChPopupWindowHandleMouse -- Handle popup window's mouse event externally
    * @param win -- Pointer to popup window
    * @param mainWin -- Pointer to main Window
    * @param x -- Mouse x coordinate
    * @param y -- Mouse y coordinate
    * @param button -- Mouse button state
    */
    XE_LIB void ChPopupWindowHandleMouse(ChWindow * win, int x, int y, int button);
 
    /*
    * ChWindowSetFlags -- set window flags
    * @param win -- Pointer to window
    * @param flags -- flags to set
    */
    XE_LIB void ChWindowSetFlags(ChWindow * win, uint16_t flags);
 
    /*
     * ChWindowMove -- moves target window to a new location
     * @param win -- Pointer to the window
     * @param newX -- new x location relative to screen coord
     * @param newY -- new y location relative to screen coord
     */
    XE_LIB void ChWindowMove(ChWindow * win, int newX, int newY);
 
    /*
    * ChWindowRegisterJump -- register long jump address
    * @param win -- Pointer to main window
    */
    XE_LIB void ChWindowRegisterJump(ChWindow * win);
 
    /*
    * ChWindowCloseWindow -- clears window related data and
    * sends close message to deodhai
    * @param win -- Pointer to window data
    */
    XE_LIB void ChWindowCloseWindow(ChWindow * win);
 
    /*
    * ChCreatePopupWindow -- *Create a popup window
    * @param app -- Pointer to application
    * @param win -- Pointer to Window
    * @param x -- X coordinate
    * @param y -- Y coordinate
    * @param w -- Width of the window
    * @param h -- Height of the window
    * @param type -- type of the window
    */
    XE_LIB ChWindow* ChCreatePopupWindow(
        ChWindow * win, int x, int y, int w, int h, uint16_t flags, char* title);
 
    /*
    * ChPopupWindowUpdate -- update the popup window
    * @param pw -- Pointer to Chitralekha Popup Window
    * @param x -- X location
    * @param y -- Y location
    * @param w -- Width of the popup window
    * @param h -- Height of the popup window
    */
    XE_LIB void ChPopupWindowUpdate(ChPopupWindow * pw, int x, int y, int w, int h);
 
    /*
    * ChPopupWindowShow -- show the popup window
    * @param pw -- Pointer to Popup Window
    * @param win -- Pointer to Chitralekha Main Window
    */
    XE_LIB void ChPopupWindowShow(ChWindow * pw, ChWindow * win);
 
    /*
    * ChPopupWindowUpdateLocation -- update the location of popup window relative to
    * main window
    * @param pwin -- Pointer to Popup Window
    * @param win -- Pointer to Main Window
    * @param x -- X location
    * @param y -- Y location
    */
    XE_LIB void ChPopupWindowUpdateLocation(ChWindow * pwin, ChWindow * win, int x, int y);
 
    /*
    * ChPopupWindowHide -- hide the popup window
    * @param pw -- Pointer to Popup Window
    * @param perent -- Parent Window
    */
    XE_LIB void ChPopupWindowHide(ChWindow * pw, ChWindow * parent);
 
#ifdef __cplusplus
}
#endif
 
#endif