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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* Metacity Theme Rendering */
/*
* Copyright (C) 2001 Havoc Pennington
*
* 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.
*/
#ifndef META_THEME_PRIVATE_H
#define META_THEME_PRIVATE_H
#include <meta/boxes.h>
#include <meta/gradient.h>
#include <meta/theme.h>
#include <meta/common.h>
#include <gtk/gtk.h>
/**
* MetaFrameStyle: (skip)
*
*/
typedef struct _MetaFrameStyle MetaFrameStyle;
/**
* MetaFrameStyleSet: (skip)
*
*/
typedef struct _MetaFrameStyleSet MetaFrameStyleSet;
/**
* MetaDrawOp: (skip)
*
*/
typedef struct _MetaDrawOp MetaDrawOp;
/**
* MetaDrawOpList: (skip)
*
*/
typedef struct _MetaDrawOpList MetaDrawOpList;
/**
* MetaGradientSpec: (skip)
*
*/
typedef struct _MetaGradientSpec MetaGradientSpec;
/**
* MetaAlphaGradientSpec: (skip)
*
*/
typedef struct _MetaAlphaGradientSpec MetaAlphaGradientSpec;
/**
* MetaColorSpec: (skip)
*
*/
typedef struct _MetaColorSpec MetaColorSpec;
/**
* MetaFrameLayout: (skip)
*
*/
typedef struct _MetaFrameLayout MetaFrameLayout;
/**
* MetaButtonSpace: (skip)
*
*/
typedef struct _MetaButtonSpace MetaButtonSpace;
/**
* MetaFrameGeometry: (skip)
*
*/
typedef struct _MetaFrameGeometry MetaFrameGeometry;
/**
* MetaPositionExprEnv: (skip)
*
*/
typedef struct _MetaPositionExprEnv MetaPositionExprEnv;
/**
* MetaDrawInfo: (skip)
*
*/
typedef struct _MetaDrawInfo MetaDrawInfo;
#define META_THEME_ERROR (g_quark_from_static_string ("meta-theme-error"))
typedef enum
{
META_THEME_ERROR_FRAME_GEOMETRY,
META_THEME_ERROR_BAD_CHARACTER,
META_THEME_ERROR_BAD_PARENS,
META_THEME_ERROR_UNKNOWN_VARIABLE,
META_THEME_ERROR_DIVIDE_BY_ZERO,
META_THEME_ERROR_MOD_ON_FLOAT,
META_THEME_ERROR_FAILED
} MetaThemeError;
/**
* Whether a button's size is calculated from the area around it (aspect
* sizing) or is given as a fixed height and width in pixels (fixed sizing).
*
* \bug This could be done away with; see the comment at the top of
* MetaFrameLayout.
*/
typedef enum
{
META_BUTTON_SIZING_ASPECT,
META_BUTTON_SIZING_FIXED,
META_BUTTON_SIZING_LAST
} MetaButtonSizing;
/**
* Various parameters used to calculate the geometry of a frame.
* They are used inside a MetaFrameStyle.
* This corresponds closely to the <frame_geometry> tag in a theme file.
*
* \bug button_sizing isn't really necessary, because we could easily say
* that if button_aspect is zero, the height and width are fixed values.
* This would also mean that MetaButtonSizing didn't need to exist, and
* save code.
**/
struct _MetaFrameLayout
{
/** Reference count. */
int refcount;
/** Size of left side */
int left_width;
/** Size of right side */
int right_width;
/** Size of bottom side */
int bottom_height;
/** Border of blue title region
* \bug (blue?!)
**/
GtkBorder title_border;
/** Extra height for inside of title region, above the font height */
int title_vertical_pad;
/** Right indent of buttons from edges of frame */
int right_titlebar_edge;
/** Left indent of buttons from edges of frame */
int left_titlebar_edge;
/**
* Sizing rule of buttons, either META_BUTTON_SIZING_ASPECT
* (in which case button_aspect will be honoured, and
* button_width and button_height set from it), or
* META_BUTTON_SIZING_FIXED (in which case we read the width
* and height directly).
*/
MetaButtonSizing button_sizing;
/**
* Ratio of height/width. Honoured only if
* button_sizing==META_BUTTON_SIZING_ASPECT.
* Otherwise we figure out the height from the button_border.
*/
double button_aspect;
/** Width of a button; set even when we are using aspect sizing */
int button_width;
/** Height of a button; set even when we are using aspect sizing */
int button_height;
/** Space around buttons */
GtkBorder button_border;
/** scale factor for title text */
double title_scale;
/** Whether title text will be displayed */
guint has_title : 1;
/** Whether we should hide the buttons */
guint hide_buttons : 1;
/** Radius of the top left-hand corner; 0 if not rounded */
guint top_left_corner_rounded_radius;
/** Radius of the top right-hand corner; 0 if not rounded */
guint top_right_corner_rounded_radius;
/** Radius of the bottom left-hand corner; 0 if not rounded */
guint bottom_left_corner_rounded_radius;
/** Radius of the bottom right-hand corner; 0 if not rounded */
guint bottom_right_corner_rounded_radius;
};
/**
* The computed size of a button (really just a way of tying its
* visible and clickable areas together).
* The reason for two different rectangles here is Fitts' law & maximized
* windows; see bug #97703 for more details.
*/
struct _MetaButtonSpace
{
/** The screen area where the button's image is drawn */
GdkRectangle visible;
/** The screen area where the button can be activated by clicking */
GdkRectangle clickable;
};
/**
* Calculated actual geometry of the frame
*/
struct _MetaFrameGeometry
{
MetaFrameBorders borders;
int width;
int height;
GdkRectangle title_rect;
int left_titlebar_edge;
int right_titlebar_edge;
int top_titlebar_edge;
int bottom_titlebar_edge;
/* used for a memset hack */
#define ADDRESS_OF_BUTTON_RECTS(fgeom) (((char*)(fgeom)) + G_STRUCT_OFFSET (MetaFrameGeometry, close_rect))
#define LENGTH_OF_BUTTON_RECTS (G_STRUCT_OFFSET (MetaFrameGeometry, right_single_background) + sizeof (GdkRectangle) - G_STRUCT_OFFSET (MetaFrameGeometry, close_rect))
/* The button rects (if changed adjust memset hack) */
MetaButtonSpace close_rect;
MetaButtonSpace max_rect;
MetaButtonSpace min_rect;
MetaButtonSpace menu_rect;
MetaButtonSpace shade_rect;
MetaButtonSpace above_rect;
MetaButtonSpace stick_rect;
MetaButtonSpace unshade_rect;
MetaButtonSpace unabove_rect;
MetaButtonSpace unstick_rect;
#define MAX_MIDDLE_BACKGROUNDS (MAX_BUTTONS_PER_CORNER - 2)
GdkRectangle left_left_background;
GdkRectangle left_middle_backgrounds[MAX_MIDDLE_BACKGROUNDS];
GdkRectangle left_right_background;
GdkRectangle left_single_background;
GdkRectangle right_left_background;
GdkRectangle right_middle_backgrounds[MAX_MIDDLE_BACKGROUNDS];
GdkRectangle right_right_background;
GdkRectangle right_single_background;
/* End of button rects (if changed adjust memset hack) */
/* Saved button layout */
MetaButtonLayout button_layout;
int n_left_buttons;
int n_right_buttons;
/* Round corners */
guint top_left_corner_rounded_radius;
guint top_right_corner_rounded_radius;
guint bottom_left_corner_rounded_radius;
guint bottom_right_corner_rounded_radius;
};
typedef enum
{
META_IMAGE_FILL_SCALE, /* default, needs to be all-bits-zero for g_new0 */
META_IMAGE_FILL_TILE
} MetaImageFillType;
typedef enum
{
META_COLOR_SPEC_BASIC,
META_COLOR_SPEC_GTK,
META_COLOR_SPEC_GTK_CUSTOM,
META_COLOR_SPEC_BLEND,
META_COLOR_SPEC_SHADE
} MetaColorSpecType;
typedef enum
{
META_GTK_COLOR_FG,
META_GTK_COLOR_BG,
META_GTK_COLOR_LIGHT,
META_GTK_COLOR_DARK,
META_GTK_COLOR_MID,
META_GTK_COLOR_TEXT,
META_GTK_COLOR_BASE,
META_GTK_COLOR_TEXT_AA,
META_GTK_COLOR_LAST
} MetaGtkColorComponent;
struct _MetaColorSpec
{
MetaColorSpecType type;
union
{
struct {
GdkRGBA color;
} basic;
struct {
MetaGtkColorComponent component;
GtkStateFlags state;
} gtk;
struct {
char *color_name;
MetaColorSpec *fallback;
} gtkcustom;
struct {
MetaColorSpec *foreground;
MetaColorSpec *background;
double alpha;
GdkRGBA color;
} blend;
struct {
MetaColorSpec *base;
double factor;
GdkRGBA color;
} shade;
} data;
};
struct _MetaGradientSpec
{
MetaGradientType type;
GSList *color_specs;
};
struct _MetaAlphaGradientSpec
{
MetaGradientType type;
unsigned char *alphas;
int n_alphas;
};
struct _MetaDrawInfo
{
GdkPixbuf *mini_icon;
GdkPixbuf *icon;
PangoLayout *title_layout;
int title_layout_width;
int title_layout_height;
const MetaFrameGeometry *fgeom;
};
/**
* A drawing operation in our simple vector drawing language.
*/
typedef enum
{
/** Basic drawing-- line */
META_DRAW_LINE,
/** Basic drawing-- rectangle */
META_DRAW_RECTANGLE,
/** Basic drawing-- arc */
META_DRAW_ARC,
/** Clip to a rectangle */
META_DRAW_CLIP,
/* Texture thingies */
/** Just a filled rectangle with alpha */
META_DRAW_TINT,
META_DRAW_GRADIENT,
META_DRAW_IMAGE,
/** GTK theme engine stuff */
META_DRAW_GTK_ARROW,
META_DRAW_GTK_BOX,
META_DRAW_GTK_VLINE,
/** App's window icon */
META_DRAW_ICON,
/** App's window title */
META_DRAW_TITLE,
/** a draw op list */
META_DRAW_OP_LIST,
/** tiled draw op list */
META_DRAW_TILE
} MetaDrawType;
typedef enum
{
POS_TOKEN_INT,
POS_TOKEN_DOUBLE,
POS_TOKEN_OPERATOR,
POS_TOKEN_VARIABLE,
POS_TOKEN_OPEN_PAREN,
POS_TOKEN_CLOSE_PAREN
} PosTokenType;
typedef enum
{
POS_OP_NONE,
POS_OP_ADD,
POS_OP_SUBTRACT,
POS_OP_MULTIPLY,
POS_OP_DIVIDE,
POS_OP_MOD,
POS_OP_MAX,
POS_OP_MIN
} PosOperatorType;
/**
* A token, as output by the tokeniser.
*
* \ingroup tokenizer
*/
typedef struct
{
PosTokenType type;
union
{
struct {
int val;
} i;
struct {
double val;
} d;
struct {
PosOperatorType op;
} o;
struct {
char *name;
GQuark name_quark;
} v;
} d;
} PosToken;
/**
* MetaDrawSpec: (skip)
*
* A computed expression in our simple vector drawing language.
* While it appears to take the form of a tree, this is actually
* merely a list; concerns such as precedence of operators are
* currently recomputed on every recalculation.
*
* Created by meta_draw_spec_new(), destroyed by meta_draw_spec_free().
* pos_eval() fills this with ...FIXME. Are tokens a tree or a list?
* \ingroup parser
*/
typedef struct _MetaDrawSpec MetaDrawSpec;
struct _MetaDrawSpec
{
/**
* If this spec is constant, this is the value of the constant;
* otherwise it is zero.
*/
int value;
/** A list of tokens in the expression. */
PosToken *tokens;
/** How many tokens are in the tokens list. */
int n_tokens;
/** Does the expression contain any variables? */
gboolean constant : 1;
};
/**
* A single drawing operation in our simple vector drawing language.
*/
struct _MetaDrawOp
{
MetaDrawType type;
/* Positions are strings because they can be expressions */
union
{
struct {
MetaColorSpec *color_spec;
int dash_on_length;
int dash_off_length;
int width;
MetaDrawSpec *x1;
MetaDrawSpec *y1;
MetaDrawSpec *x2;
MetaDrawSpec *y2;
} line;
struct {
MetaColorSpec *color_spec;
gboolean filled;
MetaDrawSpec *x;
MetaDrawSpec *y;
MetaDrawSpec *width;
MetaDrawSpec *height;
} rectangle;
struct {
MetaColorSpec *color_spec;
gboolean filled;
MetaDrawSpec *x;
MetaDrawSpec *y;
MetaDrawSpec *width;
MetaDrawSpec *height;
double start_angle;
double extent_angle;
} arc;
struct {
MetaDrawSpec *x;
MetaDrawSpec *y;
MetaDrawSpec *width;
MetaDrawSpec *height;
} clip;
struct {
MetaColorSpec *color_spec;
MetaAlphaGradientSpec *alpha_spec;
MetaDrawSpec *x;
MetaDrawSpec *y;
MetaDrawSpec *width;
MetaDrawSpec *height;
} tint;
struct {
MetaGradientSpec *gradient_spec;
MetaAlphaGradientSpec *alpha_spec;
MetaDrawSpec *x;
MetaDrawSpec *y;
MetaDrawSpec *width;
MetaDrawSpec *height;
} gradient;
struct {
MetaColorSpec *colorize_spec;
MetaAlphaGradientSpec *alpha_spec;
GdkPixbuf *pixbuf;
MetaDrawSpec *x;
MetaDrawSpec *y;
MetaDrawSpec *width;
MetaDrawSpec *height;
guint32 colorize_cache_pixel;
GdkPixbuf *colorize_cache_pixbuf;
MetaImageFillType fill_type;
unsigned int vertical_stripes : 1;
unsigned int horizontal_stripes : 1;
} image;
struct {
GtkStateFlags state;
GtkShadowType shadow;
GtkArrowType arrow;
gboolean filled;
MetaDrawSpec *x;
MetaDrawSpec *y;
MetaDrawSpec *width;
MetaDrawSpec *height;
} gtk_arrow;
struct {
GtkStateFlags state;
GtkShadowType shadow;
MetaDrawSpec *x;
MetaDrawSpec *y;
MetaDrawSpec *width;
MetaDrawSpec *height;
} gtk_box;
struct {
GtkStateFlags state;
MetaDrawSpec *x;
MetaDrawSpec *y1;
MetaDrawSpec *y2;
} gtk_vline;
struct {
MetaAlphaGradientSpec *alpha_spec;
MetaDrawSpec *x;
MetaDrawSpec *y;
MetaDrawSpec *width;
MetaDrawSpec *height;
MetaImageFillType fill_type;
} icon;
struct {
MetaColorSpec *color_spec;
MetaDrawSpec *x;
MetaDrawSpec *y;
MetaDrawSpec *ellipsize_width;
} title;
struct {
MetaDrawOpList *op_list;
MetaDrawSpec *x;
MetaDrawSpec *y;
MetaDrawSpec *width;
MetaDrawSpec *height;
} op_list;
struct {
MetaDrawOpList *op_list;
MetaDrawSpec *x;
MetaDrawSpec *y;
MetaDrawSpec *width;
MetaDrawSpec *height;
MetaDrawSpec *tile_xoffset;
MetaDrawSpec *tile_yoffset;
MetaDrawSpec *tile_width;
MetaDrawSpec *tile_height;
} tile;
} data;
};
/**
* A list of MetaDrawOp objects. Maintains a reference count.
* Grows as necessary and allows the allocation of unused spaces
* to keep reallocations to a minimum.
*
* \bug Do we really win anything from not using the equivalent
* GLib structures?
*/
struct _MetaDrawOpList
{
int refcount;
MetaDrawOp **ops;
int n_ops;
int n_allocated;
};
typedef enum
{
META_BUTTON_STATE_NORMAL,
META_BUTTON_STATE_PRESSED,
META_BUTTON_STATE_PRELIGHT,
META_BUTTON_STATE_LAST
} MetaButtonState;
typedef enum
{
/* Ordered so that background is drawn first */
META_BUTTON_TYPE_LEFT_LEFT_BACKGROUND,
META_BUTTON_TYPE_LEFT_MIDDLE_BACKGROUND,
META_BUTTON_TYPE_LEFT_RIGHT_BACKGROUND,
META_BUTTON_TYPE_LEFT_SINGLE_BACKGROUND,
META_BUTTON_TYPE_RIGHT_LEFT_BACKGROUND,
META_BUTTON_TYPE_RIGHT_MIDDLE_BACKGROUND,
META_BUTTON_TYPE_RIGHT_RIGHT_BACKGROUND,
META_BUTTON_TYPE_RIGHT_SINGLE_BACKGROUND,
META_BUTTON_TYPE_CLOSE,
META_BUTTON_TYPE_MAXIMIZE,
META_BUTTON_TYPE_MINIMIZE,
META_BUTTON_TYPE_MENU,
META_BUTTON_TYPE_SHADE,
META_BUTTON_TYPE_ABOVE,
META_BUTTON_TYPE_STICK,
META_BUTTON_TYPE_UNSHADE,
META_BUTTON_TYPE_UNABOVE,
META_BUTTON_TYPE_UNSTICK,
META_BUTTON_TYPE_LAST
} MetaButtonType;
typedef enum
{
META_MENU_ICON_TYPE_CLOSE,
META_MENU_ICON_TYPE_MAXIMIZE,
META_MENU_ICON_TYPE_UNMAXIMIZE,
META_MENU_ICON_TYPE_MINIMIZE,
META_MENU_ICON_TYPE_LAST
} MetaMenuIconType;
typedef enum
{
/* Listed in the order in which the textures are drawn.
* (though this only matters for overlaps of course.)
* Buttons are drawn after the frame textures.
*
* On the corners, horizontal pieces are arbitrarily given the
* corner area:
*
* ===== |====
* | |
* | rather than |
*
*/
/* entire frame */
META_FRAME_PIECE_ENTIRE_BACKGROUND,
/* entire titlebar background */
META_FRAME_PIECE_TITLEBAR,
/* portion of the titlebar background inside the titlebar
* background edges
*/
META_FRAME_PIECE_TITLEBAR_MIDDLE,
/* left end of titlebar */
META_FRAME_PIECE_LEFT_TITLEBAR_EDGE,
/* right end of titlebar */
META_FRAME_PIECE_RIGHT_TITLEBAR_EDGE,
/* top edge of titlebar */
META_FRAME_PIECE_TOP_TITLEBAR_EDGE,
/* bottom edge of titlebar */
META_FRAME_PIECE_BOTTOM_TITLEBAR_EDGE,
/* render over title background (text area) */
META_FRAME_PIECE_TITLE,
/* left edge of the frame */
META_FRAME_PIECE_LEFT_EDGE,
/* right edge of the frame */
META_FRAME_PIECE_RIGHT_EDGE,
/* bottom edge of the frame */
META_FRAME_PIECE_BOTTOM_EDGE,
/* place over entire frame, after drawing everything else */
META_FRAME_PIECE_OVERLAY,
/* Used to get size of the enum */
META_FRAME_PIECE_LAST
} MetaFramePiece;
/**
* How to draw a frame in a particular state (say, a focussed, non-maximised,
* resizable frame). This corresponds closely to the <frame_style> tag
* in a theme file.
*/
struct _MetaFrameStyle
{
/** Reference count. */
int refcount;
/**
* Parent style.
* Settings which are unspecified here will be taken from there.
*/
MetaFrameStyle *parent;
/** Operations for drawing each kind of button in each state. */
MetaDrawOpList *buttons[META_BUTTON_TYPE_LAST][META_BUTTON_STATE_LAST];
/** Operations for drawing each piece of the frame. */
MetaDrawOpList *pieces[META_FRAME_PIECE_LAST];
/**
* Details such as the height and width of each edge, the corner rounding,
* and the aspect ratio of the buttons.
*/
MetaFrameLayout *layout;
/**
* Background colour of the window. Only present in theme formats
* 2 and above. Can be NULL to use the standard GTK theme engine.
*/
MetaColorSpec *window_background_color;
/**
* Transparency of the window background. 0=transparent; 255=opaque.
*/
guint8 window_background_alpha;
};
/* Kinds of frame...
*
* normal -> noresize / vert only / horz only / both
* focused / unfocused
* max -> focused / unfocused
* shaded -> focused / unfocused
* max/shaded -> focused / unfocused
*
* so 4 states with 8 sub-states in one, 2 sub-states in the other 3,
* meaning 14 total
*
* 14 window states times 7 or 8 window types. Except some
* window types never get a frame so that narrows it down a bit.
*
*/
typedef enum
{
META_FRAME_STATE_NORMAL,
META_FRAME_STATE_MAXIMIZED,
META_FRAME_STATE_TILED_LEFT,
META_FRAME_STATE_TILED_RIGHT,
META_FRAME_STATE_SHADED,
META_FRAME_STATE_MAXIMIZED_AND_SHADED,
META_FRAME_STATE_TILED_LEFT_AND_SHADED,
META_FRAME_STATE_TILED_RIGHT_AND_SHADED,
META_FRAME_STATE_LAST
} MetaFrameState;
typedef enum
{
META_FRAME_RESIZE_NONE,
META_FRAME_RESIZE_VERTICAL,
META_FRAME_RESIZE_HORIZONTAL,
META_FRAME_RESIZE_BOTH,
META_FRAME_RESIZE_LAST
} MetaFrameResize;
typedef enum
{
META_FRAME_FOCUS_NO,
META_FRAME_FOCUS_YES,
META_FRAME_FOCUS_LAST
} MetaFrameFocus;
/**
* How to draw frames at different times: when it's maximised or not, shaded
* or not, when it's focussed or not, and (for non-maximised windows), when
* it can be horizontally or vertically resized, both, or neither.
* Not all window types actually get a frame.
*
* A theme contains one of these objects for each type of window (each
* MetaFrameType), that is, normal, dialogue (modal and non-modal), etc.
*
* This corresponds closely to the <frame_style_set> tag in a theme file.
*/
struct _MetaFrameStyleSet
{
int refcount;
MetaFrameStyleSet *parent;
MetaFrameStyle *normal_styles[META_FRAME_RESIZE_LAST][META_FRAME_FOCUS_LAST];
MetaFrameStyle *maximized_styles[META_FRAME_FOCUS_LAST];
MetaFrameStyle *tiled_left_styles[META_FRAME_FOCUS_LAST];
MetaFrameStyle *tiled_right_styles[META_FRAME_FOCUS_LAST];
MetaFrameStyle *shaded_styles[META_FRAME_RESIZE_LAST][META_FRAME_FOCUS_LAST];
MetaFrameStyle *maximized_and_shaded_styles[META_FRAME_FOCUS_LAST];
MetaFrameStyle *tiled_left_and_shaded_styles[META_FRAME_FOCUS_LAST];
MetaFrameStyle *tiled_right_and_shaded_styles[META_FRAME_FOCUS_LAST];
};
/**
* A theme. This is a singleton class which groups all settings from a theme
* on disk together.
*
* \bug It is rather useless to keep the metadata fields in core, I think.
*/
struct _MetaTheme
{
/** Name of the theme (on disk), e.g. "Crux" */
char *name;
/** Path to the files associated with the theme */
char *dirname;
/**
* Filename of the XML theme file.
* \bug Kept lying around for no discernable reason.
*/
char *filename;
/** Metadata: Human-readable name of the theme. */
char *readable_name;
/** Metadata: Author of the theme. */
char *author;
/** Metadata: Copyright holder. */
char *copyright;
/** Metadata: Date of the theme. */
char *date;
/** Metadata: Description of the theme. */
char *description;
/** Version of the theme format. Older versions cannot use the features
* of newer versions even if they think they can (this is to allow forward
* and backward compatibility.
*/
guint format_version;
/** Symbol table of integer constants. */
GHashTable *integer_constants;
/** Symbol table of float constants. */
GHashTable *float_constants;
/**
* Symbol table of colour constants (hex triples, and triples
* plus alpha).
* */
GHashTable *color_constants;
GHashTable *images_by_filename;
GHashTable *layouts_by_name;
GHashTable *draw_op_lists_by_name;
GHashTable *styles_by_name;
GHashTable *style_sets_by_name;
MetaFrameStyleSet *style_sets_by_type[META_FRAME_TYPE_LAST];
GQuark quark_width;
GQuark quark_height;
GQuark quark_object_width;
GQuark quark_object_height;
GQuark quark_left_width;
GQuark quark_right_width;
GQuark quark_top_height;
GQuark quark_bottom_height;
GQuark quark_mini_icon_width;
GQuark quark_mini_icon_height;
GQuark quark_icon_width;
GQuark quark_icon_height;
GQuark quark_title_width;
GQuark quark_title_height;
GQuark quark_frame_x_center;
GQuark quark_frame_y_center;
};
struct _MetaPositionExprEnv
{
MetaRectangle rect;
/* size of an object being drawn, if it has a natural size */
int object_width;
int object_height;
/* global object sizes, always available */
int left_width;
int right_width;
int top_height;
int bottom_height;
int title_width;
int title_height;
int frame_x_center;
int frame_y_center;
int mini_icon_width;
int mini_icon_height;
int icon_width;
int icon_height;
/* Theme so we can look up constants */
MetaTheme *theme;
};
MetaFrameLayout* meta_frame_layout_new (void);
MetaFrameLayout* meta_frame_layout_copy (const MetaFrameLayout *src);
void meta_frame_layout_ref (MetaFrameLayout *layout);
void meta_frame_layout_unref (MetaFrameLayout *layout);
void meta_frame_layout_get_borders (const MetaFrameLayout *layout,
int text_height,
MetaFrameFlags flags,
MetaFrameType type,
MetaFrameBorders *borders);
gboolean meta_frame_layout_validate (const MetaFrameLayout *layout,
GError **error);
gboolean meta_parse_position_expression (MetaDrawSpec *spec,
const MetaPositionExprEnv *env,
int *x_return,
int *y_return,
GError **err);
gboolean meta_parse_size_expression (MetaDrawSpec *spec,
const MetaPositionExprEnv *env,
int *val_return,
GError **err);
MetaDrawSpec* meta_draw_spec_new (MetaTheme *theme,
const char *expr,
GError **error);
void meta_draw_spec_free (MetaDrawSpec *spec);
MetaColorSpec* meta_color_spec_new (MetaColorSpecType type);
MetaColorSpec* meta_color_spec_new_from_string (const char *str,
GError **err);
MetaColorSpec* meta_color_spec_new_gtk (MetaGtkColorComponent component,
GtkStateFlags state);
void meta_color_spec_free (MetaColorSpec *spec);
void meta_color_spec_render (MetaColorSpec *spec,
GtkStyleContext *style_gtk,
GdkRGBA *color);
MetaDrawOp* meta_draw_op_new (MetaDrawType type);
void meta_draw_op_free (MetaDrawOp *op);
void meta_draw_op_draw_with_style (const MetaDrawOp *op,
GtkStyleContext *style_gtk,
cairo_t *cr,
const MetaDrawInfo *info,
/* logical region being drawn */
MetaRectangle logical_region);
MetaDrawOpList* meta_draw_op_list_new (int n_preallocs);
void meta_draw_op_list_ref (MetaDrawOpList *op_list);
void meta_draw_op_list_unref (MetaDrawOpList *op_list);
void meta_draw_op_list_draw_with_style (const MetaDrawOpList *op_list,
GtkStyleContext *style_gtk,
cairo_t *cr,
const MetaDrawInfo *info,
MetaRectangle rect);
void meta_draw_op_list_append (MetaDrawOpList *op_list,
MetaDrawOp *op);
gboolean meta_draw_op_list_validate (MetaDrawOpList *op_list,
GError **error);
gboolean meta_draw_op_list_contains (MetaDrawOpList *op_list,
MetaDrawOpList *child);
MetaGradientSpec* meta_gradient_spec_new (MetaGradientType type);
void meta_gradient_spec_free (MetaGradientSpec *desc);
GdkPixbuf* meta_gradient_spec_render (const MetaGradientSpec *desc,
GtkStyleContext *gtk_style,
int width,
int height);
gboolean meta_gradient_spec_validate (MetaGradientSpec *spec,
GError **error);
MetaAlphaGradientSpec* meta_alpha_gradient_spec_new (MetaGradientType type,
int n_alphas);
void meta_alpha_gradient_spec_free (MetaAlphaGradientSpec *spec);
MetaFrameStyle* meta_frame_style_new (MetaFrameStyle *parent);
void meta_frame_style_ref (MetaFrameStyle *style);
void meta_frame_style_unref (MetaFrameStyle *style);
gboolean meta_frame_style_validate (MetaFrameStyle *style,
guint current_theme_version,
GError **error);
MetaFrameStyleSet* meta_frame_style_set_new (MetaFrameStyleSet *parent);
void meta_frame_style_set_ref (MetaFrameStyleSet *style_set);
void meta_frame_style_set_unref (MetaFrameStyleSet *style_set);
gboolean meta_frame_style_set_validate (MetaFrameStyleSet *style_set,
GError **error);
GdkPixbuf* meta_theme_load_image (MetaTheme *theme,
const char *filename,
guint size_of_theme_icons,
GError **error);
MetaFrameStyle* meta_theme_get_frame_style (MetaTheme *theme,
MetaFrameType type,
MetaFrameFlags flags);
double meta_theme_get_title_scale (MetaTheme *theme,
MetaFrameType type,
MetaFrameFlags flags);
GtkStyleContext * meta_theme_create_style_context (GdkScreen *screen,
const gchar *variant);
void meta_theme_draw_frame (MetaTheme *theme,
GtkStyleContext *style_gtk,
cairo_t *cr,
MetaFrameType type,
MetaFrameFlags flags,
int client_width,
int client_height,
PangoLayout *title_layout,
int text_height,
const MetaButtonLayout *button_layout,
MetaButtonState button_states[META_BUTTON_TYPE_LAST],
GdkPixbuf *mini_icon,
GdkPixbuf *icon);
void meta_theme_get_frame_borders (MetaTheme *theme,
MetaFrameType type,
int text_height,
MetaFrameFlags flags,
MetaFrameBorders *borders);
void meta_theme_calc_geometry (MetaTheme *theme,
MetaFrameType type,
int text_height,
MetaFrameFlags flags,
int client_width,
int client_height,
const MetaButtonLayout *button_layout,
MetaFrameGeometry *fgeom);
MetaFrameLayout* meta_theme_lookup_layout (MetaTheme *theme,
const char *name);
void meta_theme_insert_layout (MetaTheme *theme,
const char *name,
MetaFrameLayout *layout);
MetaDrawOpList* meta_theme_lookup_draw_op_list (MetaTheme *theme,
const char *name);
void meta_theme_insert_draw_op_list (MetaTheme *theme,
const char *name,
MetaDrawOpList *op_list);
MetaFrameStyle* meta_theme_lookup_style (MetaTheme *theme,
const char *name);
void meta_theme_insert_style (MetaTheme *theme,
const char *name,
MetaFrameStyle *style);
MetaFrameStyleSet* meta_theme_lookup_style_set (MetaTheme *theme,
const char *name);
void meta_theme_insert_style_set (MetaTheme *theme,
const char *name,
MetaFrameStyleSet *style_set);
gboolean meta_theme_define_int_constant (MetaTheme *theme,
const char *name,
int value,
GError **error);
gboolean meta_theme_lookup_int_constant (MetaTheme *theme,
const char *name,
int *value);
gboolean meta_theme_define_float_constant (MetaTheme *theme,
const char *name,
double value,
GError **error);
gboolean meta_theme_lookup_float_constant (MetaTheme *theme,
const char *name,
double *value);
gboolean meta_theme_define_color_constant (MetaTheme *theme,
const char *name,
const char *value,
GError **error);
gboolean meta_theme_lookup_color_constant (MetaTheme *theme,
const char *name,
char **value);
gboolean meta_theme_replace_constants (MetaTheme *theme,
PosToken *tokens,
int n_tokens,
GError **err);
/* random stuff */
PangoFontDescription* meta_gtk_widget_get_font_desc (GtkWidget *widget,
double scale,
const PangoFontDescription *override);
int meta_pango_font_desc_get_text_height (const PangoFontDescription *font_desc,
PangoContext *context);
/* Enum converters */
MetaGtkColorComponent meta_color_component_from_string (const char *str);
const char* meta_color_component_to_string (MetaGtkColorComponent component);
MetaButtonState meta_button_state_from_string (const char *str);
const char* meta_button_state_to_string (MetaButtonState state);
MetaButtonType meta_button_type_from_string (const char *str,
MetaTheme *theme);
const char* meta_button_type_to_string (MetaButtonType type);
MetaFramePiece meta_frame_piece_from_string (const char *str);
const char* meta_frame_piece_to_string (MetaFramePiece piece);
MetaFrameState meta_frame_state_from_string (const char *str);
const char* meta_frame_state_to_string (MetaFrameState state);
MetaFrameResize meta_frame_resize_from_string (const char *str);
const char* meta_frame_resize_to_string (MetaFrameResize resize);
MetaFrameFocus meta_frame_focus_from_string (const char *str);
const char* meta_frame_focus_to_string (MetaFrameFocus focus);
MetaFrameType meta_frame_type_from_string (const char *str);
MetaGradientType meta_gradient_type_from_string (const char *str);
const char* meta_gradient_type_to_string (MetaGradientType type);
GtkStateFlags meta_gtk_state_from_string (const char *str);
const char* meta_gtk_state_to_string (GtkStateFlags state);
GtkShadowType meta_gtk_shadow_from_string (const char *str);
const char* meta_gtk_shadow_to_string (GtkShadowType shadow);
GtkArrowType meta_gtk_arrow_from_string (const char *str);
const char* meta_gtk_arrow_to_string (GtkArrowType arrow);
MetaImageFillType meta_image_fill_type_from_string (const char *str);
const char* meta_image_fill_type_to_string (MetaImageFillType fill_type);
void meta_gtk_style_get_light_color (GtkStyleContext *style,
GtkStateFlags state,
GdkRGBA *color);
void meta_gtk_style_get_dark_color (GtkStyleContext *style,
GtkStateFlags state,
GdkRGBA *color);
guint meta_theme_earliest_version_with_button (MetaButtonType type);
#define META_THEME_ALLOWS(theme, feature) (theme->format_version >= feature)
/* What version of the theme file format were various features introduced in? */
#define META_THEME_SHADE_STICK_ABOVE_BUTTONS 2
#define META_THEME_UBIQUITOUS_CONSTANTS 2
#define META_THEME_VARIED_ROUND_CORNERS 2
#define META_THEME_IMAGES_FROM_ICON_THEMES 2
#define META_THEME_UNRESIZABLE_SHADED_STYLES 2
#define META_THEME_DEGREES_IN_ARCS 2
#define META_THEME_HIDDEN_BUTTONS 2
#define META_THEME_COLOR_CONSTANTS 2
#define META_THEME_FRAME_BACKGROUNDS 2
#endif /* META_THEME_PRIVATE_H */
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