glcompdefs.h

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/*************************************************************************
 * Copyright (c) 2011 AT&T Intellectual Property 
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors: Details at https://graphviz.org
 *************************************************************************/
 
#pragma once
 
#include <stdbool.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <math.h>
#ifdef _WIN32
#include <windows.h>
#include <winuser.h>
#include <tchar.h>
#endif
#include <glcomp/opengl.h>
#include <util/list.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
 
#define GLCOMPSET_PANEL_COLOR_R         0.16f
#define GLCOMPSET_PANEL_COLOR_G         0.44f
#define GLCOMPSET_PANEL_COLOR_B         0.87f
#define GLCOMPSET_PANEL_COLOR_ALPHA     0.5f
#define GLCOMPSET_PANEL_SHADOW_WIDTH            4.0f
 
#define GLCOMPSET_BUTTON_COLOR_R                0.0f
#define GLCOMPSET_BUTTON_COLOR_G                1.0f
#define GLCOMPSET_BUTTON_COLOR_B                0.3f
#define GLCOMPSET_BUTTON_COLOR_ALPHA    0.6f
#define GLCOMPSET_BUTTON_THICKNESS              3.0f
#define GLCOMPSET_BUTTON_BEVEL_BRIGHTNESS               1.7f
#define GLCOMPSET_FONT_SIZE                             14.0f
 
#define GLCOMPSET_FONT_COLOR_R          0.0f
#define GLCOMPSET_FONT_COLOR_G          0.0f
#define GLCOMPSET_FONT_COLOR_B          0.0f
#define GLCOMPSET_FONT_COLOR_ALPHA      1.0f
#define GLCOMPSET_FONT_DESC  "Times Italic"
 
#define GLCOMPSET_BORDERWIDTH                           2.0f
#define GLCOMPSET_PANEL_BORDERWIDTH                             3.0f
#define GLCOMPSET_BUTTON_BEVEL                          5.0f
#define GLCOMPSET_BEVEL_DIFF                            0.001f
#define GLCOMP_DEFAULT_WIDTH    10.0f
#define GLCOMP_DEFAULT_HEIGHT   10.0f
 
    typedef enum { glAlignNone, glAlignLeft, glAlignTop, glAlignBottom,
            glAlignRight, glAlignParent, glAlignCenter } glCompAlignment;
 
    typedef enum { glFontVJustifyNone, glFontVJustifyCenter } glCompVJustify;
    typedef enum { glFontHJustifyNone, glFontHJustifyCenter } glCompHJustify;
 
    typedef enum { glMouseDown, glMouseUp } glCompMouseStatus;
    typedef enum { glMouseLeftButton, glMouseRightButton,
            glMouseMiddleButton } glMouseButtonType;
 
    typedef enum { glTexImage, glTexLabel } glCompTexType;
 
    typedef struct glCompObj_ glCompObj;
 
/*call backs for widgets*/
    typedef void (*glcompdrawfunc_t) (void *obj);
    typedef void (*glcompclickfunc_t)(glCompObj *obj, float x,
                                       float y, glMouseButtonType t);
    typedef void (*glcompmouseoverfunc_t) (glCompObj * obj, float x,
                                           float y);
    typedef void (*glcompmousedownfunc_t) (glCompObj * obj, float x,
                                           float y, glMouseButtonType t);
    typedef void (*glcompmouseupfunc_t) (glCompObj * obj, float x,
                                         float y, glMouseButtonType t);
 
    typedef struct {
        int topAnchor;          /*anchor booleans */
        int leftAnchor;
        int rightAnchor;
        int bottomAnchor;
 
        float top;              /*anchor values */
        float left;
        float right;
        float bottom;
 
 
    } glCompAnchor;
 
    typedef struct {
        glCompVJustify VJustify;
        glCompHJustify HJustify;
    } glCompJustify;
 
    typedef struct {
        float x, y, z;
    } glCompPoint;
 
DEFINE_LIST(glCompPoly, glCompPoint)
 
    typedef struct {
        float R;
        float G;
        float B;
        float A;                //Alpha
    } glCompColor;
 
    typedef struct {
        glCompPoint pos;
        float w;
        float h;
    } glCompRect;
 
    typedef struct {
        uint32_t id;
        char *def;
        char *text;
        int width;
        int height;
        glCompTexType type;
        int userCount;
        int fontSize;
        unsigned char *data;    /*data */
    } glCompTex;
 
 
 
/*opengl font*/
    typedef struct {
        char *fontdesc;         //font description , only used with pango fonts
        glCompColor color;
        void *glutfont;         /*glut font pointer if used */
        int transparent;
        glCompTex *tex;         /* texture, if type is pangotext */
        int size;
        glCompJustify justify;
        bool is2D;
    } glCompFont;
 
    typedef struct {
        glcompdrawfunc_t draw;
        glcompclickfunc_t click;
        glcompmouseoverfunc_t mouseover;
        glcompmousedownfunc_t mousedown;
        glcompmouseupfunc_t mouseup;
    } glCompCallBacks;
 
typedef struct glCompSet_ glCompSet;
 
/*
        common widget properties
        also each widget has pointer to its parents common
*/
    typedef struct {
        glCompPoint pos;
        glCompPoint refPos;     /*calculated pos after anchors and aligns */
        float width, height;
        float borderWidth;
        glCompColor color;
        int enabled;
        int visible;
        glCompSet *compset; 
        void *parent;           /*parent widget */
        int data;
        glCompFont font; 
        glCompAlignment align;
        glCompAnchor anchor;
        int layer;              /*keep track of object order, what to draw on top */
        glCompCallBacks callbacks;
        glCompCallBacks functions;
        glCompJustify justify;
    } glCompCommon;
 
struct glCompObj_ {
  glCompCommon common;
};
 
/*generic image*/
    typedef struct {
        glCompObj base;
        glCompTex *texture;
        float width, height;  /* width and height in world coords */
    } glCompImage;
 
/*generic panel*/
    typedef struct {
        glCompObj base;
        float shadowwidth;
        char *text;
    } glCompPanel;
 
/*label*/
    typedef struct {
        glCompObj base;
        char *text;
    } glCompLabel;
 
/*buttons*/
    typedef struct {
        glCompObj base;
        float width, height;
        glCompLabel *label;
        bool status; 
        bool refStatus; 
        int groupid;
        glCompImage *image;     /*glyph */
        int data;
    } glCompButton;
 
/*texture based image*/
 
    typedef struct {
        glMouseButtonType t;
        float x, y; 
        glCompPoint GLpos;/*3d converted opengl position*/
        glCompPoint GLinitPos;/*mouse button down pos*/
        glCompPoint GLfinalPos;/*mouse button up pos*/
 
        float dragX, dragY;/*GLpos - GLinitpos*/
        glCompObj *clickedObj;
        glCompCallBacks callbacks;
        glCompCallBacks functions;
        bool down;
    } glCompMouse;
 
 
 
/*main widget set manager*/
    struct glCompSet_ {
        glCompObj base;
        glCompObj **obj;
        size_t objcnt;
        size_t textureCount;
        glCompTex **textures;
        glCompMouse mouse;
    };
 
#ifdef __cplusplus
}
#endif