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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, see <http://www.gnu.org/licenses/>.
- */
-
-#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);
-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);
-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);
-GtkStateFlags meta_gtk_state_from_string (const char *str);
-GtkShadowType meta_gtk_shadow_from_string (const char *str);
-GtkArrowType meta_gtk_arrow_from_string (const char *str);
-MetaImageFillType meta_image_fill_type_from_string (const char *str);
-
-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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