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Diffstat (limited to 'widget/gtk/gtkdrawing.h')
| -rw-r--r-- | widget/gtk/gtkdrawing.h | 542 |
1 files changed, 542 insertions, 0 deletions
diff --git a/widget/gtk/gtkdrawing.h b/widget/gtk/gtkdrawing.h new file mode 100644 index 0000000000..9bbfdefe96 --- /dev/null +++ b/widget/gtk/gtkdrawing.h @@ -0,0 +1,542 @@ +/* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/** + * gtkdrawing.h: GTK widget rendering utilities + * + * gtkdrawing provides an API for rendering GTK widgets in the + * current theme to a pixmap or window, without requiring an actual + * widget instantiation, similar to the Macintosh Appearance Manager + * or Windows XP's DrawThemeBackground() API. + */ + +#ifndef _GTK_DRAWING_H_ +#define _GTK_DRAWING_H_ + +#include <gdk/gdk.h> +#include <gtk/gtk.h> + +#if (MOZ_WIDGET_GTK == 2) +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ +#endif + +/*** type definitions ***/ +typedef struct { + guint8 active; + guint8 focused; + guint8 inHover; + guint8 disabled; + guint8 isDefault; + guint8 canDefault; + /* The depressed state is for buttons which remain active for a longer period: + * activated toggle buttons or buttons showing a popup menu. */ + guint8 depressed; + gint32 curpos; /* curpos and maxpos are used for scrollbars */ + gint32 maxpos; +} GtkWidgetState; + +typedef struct { + gint slider_width; + gint trough_border; + gint stepper_size; + gint stepper_spacing; + gint min_slider_size; +} MozGtkScrollbarMetrics; + +typedef enum { + MOZ_GTK_STEPPER_DOWN = 1 << 0, + MOZ_GTK_STEPPER_BOTTOM = 1 << 1, + MOZ_GTK_STEPPER_VERTICAL = 1 << 2 +} GtkScrollbarButtonFlags; + +typedef enum { + MOZ_GTK_TRACK_OPAQUE = 1 << 0 +} GtkScrollbarTrackFlags; + +/** flags for tab state **/ +typedef enum { + /* first eight bits are used to pass a margin */ + MOZ_GTK_TAB_MARGIN_MASK = 0xFF, + /* the first tab in the group */ + MOZ_GTK_TAB_FIRST = 1 << 9, + /* the selected tab */ + MOZ_GTK_TAB_SELECTED = 1 << 10 +} GtkTabFlags; + +/* function type for moz_gtk_enable_style_props */ +typedef gint (*style_prop_t)(GtkStyle*, const gchar*, gint); + +/*** result/error codes ***/ +#define MOZ_GTK_SUCCESS 0 +#define MOZ_GTK_UNKNOWN_WIDGET -1 +#define MOZ_GTK_UNSAFE_THEME -2 + +/*** checkbox/radio flags ***/ +#define MOZ_GTK_WIDGET_CHECKED 1 +#define MOZ_GTK_WIDGET_INCONSISTENT (1 << 1) + +/*** widget type constants ***/ +typedef enum { + /* Paints a GtkButton. flags is a GtkReliefStyle. */ + MOZ_GTK_BUTTON, + /* Paints a button with image and no text */ + MOZ_GTK_TOOLBAR_BUTTON, + /* Paints a toggle button */ + MOZ_GTK_TOGGLE_BUTTON, + /* Paints a button arrow */ + MOZ_GTK_BUTTON_ARROW, + + /* Paints the container part of a GtkCheckButton. */ + MOZ_GTK_CHECKBUTTON_CONTAINER, + /* Paints a GtkCheckButton. flags is a boolean, 1=checked, 0=not checked. */ + MOZ_GTK_CHECKBUTTON, + /* Paints the label of a GtkCheckButton (focus outline) */ + MOZ_GTK_CHECKBUTTON_LABEL, + + /* Paints the container part of a GtkRadioButton. */ + MOZ_GTK_RADIOBUTTON_CONTAINER, + /* Paints a GtkRadioButton. flags is a boolean, 1=checked, 0=not checked. */ + MOZ_GTK_RADIOBUTTON, + /* Paints the label of a GtkRadioButton (focus outline) */ + MOZ_GTK_RADIOBUTTON_LABEL, + /** + * Paints the button of a GtkScrollbar. flags is a GtkArrowType giving + * the arrow direction. + */ + MOZ_GTK_SCROLLBAR_BUTTON, + + /* Horizontal GtkScrollbar counterparts */ + MOZ_GTK_SCROLLBAR_HORIZONTAL, + MOZ_GTK_SCROLLBAR_CONTENTS_HORIZONTAL, + /* Paints the trough (track) of a GtkScrollbar. */ + MOZ_GTK_SCROLLBAR_TROUGH_HORIZONTAL, + /* Paints the slider (thumb) of a GtkScrollbar. */ + MOZ_GTK_SCROLLBAR_THUMB_HORIZONTAL, + + /* Vertical GtkScrollbar counterparts */ + MOZ_GTK_SCROLLBAR_VERTICAL, + MOZ_GTK_SCROLLBAR_CONTENTS_VERTICAL, + MOZ_GTK_SCROLLBAR_TROUGH_VERTICAL, + MOZ_GTK_SCROLLBAR_THUMB_VERTICAL, + + /* Paints a GtkScale. */ + MOZ_GTK_SCALE_HORIZONTAL, + MOZ_GTK_SCALE_VERTICAL, + /* Paints a GtkScale trough. */ + MOZ_GTK_SCALE_CONTENTS_HORIZONTAL, + MOZ_GTK_SCALE_CONTENTS_VERTICAL, + MOZ_GTK_SCALE_TROUGH_HORIZONTAL, + MOZ_GTK_SCALE_TROUGH_VERTICAL, + /* Paints a GtkScale thumb. */ + MOZ_GTK_SCALE_THUMB_HORIZONTAL, + MOZ_GTK_SCALE_THUMB_VERTICAL, + /* Paints a GtkSpinButton */ + MOZ_GTK_SPINBUTTON, + MOZ_GTK_SPINBUTTON_UP, + MOZ_GTK_SPINBUTTON_DOWN, + MOZ_GTK_SPINBUTTON_ENTRY, + /* Paints the gripper of a GtkHandleBox. */ + MOZ_GTK_GRIPPER, + /* Paints a GtkEntry. */ + MOZ_GTK_ENTRY, + /* Paints a GtkExpander. */ + MOZ_GTK_EXPANDER, + /* Paints a GtkTextView. */ + MOZ_GTK_TEXT_VIEW, + /* Paints a GtkOptionMenu. */ + MOZ_GTK_DROPDOWN, + /* Paints a dropdown arrow (a GtkButton containing a down GtkArrow). */ + MOZ_GTK_DROPDOWN_ARROW, + /* Paints an entry in an editable option menu */ + MOZ_GTK_DROPDOWN_ENTRY, + + /* Paints the background of a GtkHandleBox. */ + MOZ_GTK_TOOLBAR, + /* Paints a toolbar separator */ + MOZ_GTK_TOOLBAR_SEPARATOR, + /* Paints a GtkToolTip */ + MOZ_GTK_TOOLTIP, + /* Paints a GtkFrame (e.g. a status bar panel). */ + MOZ_GTK_FRAME, + /* Paints the border of a GtkFrame */ + MOZ_GTK_FRAME_BORDER, + /* Paints a resize grip for a GtkWindow */ + MOZ_GTK_RESIZER, + /* Paints a GtkProgressBar. */ + MOZ_GTK_PROGRESSBAR, + /* Paints a trough (track) of a GtkProgressBar */ + MOZ_GTK_PROGRESS_TROUGH, + /* Paints a progress chunk of a GtkProgressBar. */ + MOZ_GTK_PROGRESS_CHUNK, + /* Paints a progress chunk of an indeterminated GtkProgressBar. */ + MOZ_GTK_PROGRESS_CHUNK_INDETERMINATE, + /* Paints a progress chunk of a vertical indeterminated GtkProgressBar. */ + MOZ_GTK_PROGRESS_CHUNK_VERTICAL_INDETERMINATE, + /* Used as root style of whole GtkNotebook widget */ + MOZ_GTK_NOTEBOOK, + /* Used as root style of active GtkNotebook area which contains tabs and arrows. */ + MOZ_GTK_NOTEBOOK_HEADER, + /* Paints a tab of a GtkNotebook. flags is a GtkTabFlags, defined above. */ + MOZ_GTK_TAB_TOP, + /* Paints a tab of a GtkNotebook. flags is a GtkTabFlags, defined above. */ + MOZ_GTK_TAB_BOTTOM, + /* Paints the background and border of a GtkNotebook. */ + MOZ_GTK_TABPANELS, + /* Paints a GtkArrow for a GtkNotebook. flags is a GtkArrowType. */ + MOZ_GTK_TAB_SCROLLARROW, + /* Paints the expander and border of a GtkTreeView */ + MOZ_GTK_TREEVIEW, + /* Paints the border of a GtkTreeView */ + MOZ_GTK_TREEVIEW_VIEW, + /* Paints treeheader cells */ + MOZ_GTK_TREE_HEADER_CELL, + /* Paints sort arrows in treeheader cells */ + MOZ_GTK_TREE_HEADER_SORTARROW, + /* Paints an expander for a GtkTreeView */ + MOZ_GTK_TREEVIEW_EXPANDER, + /* Paints the background of the menu bar. */ + MOZ_GTK_MENUBAR, + /* Paints the background of menus, context menus. */ + MOZ_GTK_MENUPOPUP, + /* Paints the arrow of menuitems that contain submenus */ + MOZ_GTK_MENUARROW, + /* Paints an arrow in a toolbar button. flags is a GtkArrowType. */ + MOZ_GTK_TOOLBARBUTTON_ARROW, + /* Paints items of menubar. */ + MOZ_GTK_MENUBARITEM, + /* Paints items of popup menus. */ + MOZ_GTK_MENUITEM, + MOZ_GTK_IMAGEMENUITEM, + MOZ_GTK_CHECKMENUITEM_CONTAINER, + MOZ_GTK_RADIOMENUITEM_CONTAINER, + MOZ_GTK_CHECKMENUITEM, + MOZ_GTK_RADIOMENUITEM, + MOZ_GTK_MENUSEPARATOR, + /* GtkVPaned base class */ + MOZ_GTK_SPLITTER_HORIZONTAL, + /* GtkHPaned base class */ + MOZ_GTK_SPLITTER_VERTICAL, + /* Paints a GtkVPaned separator */ + MOZ_GTK_SPLITTER_SEPARATOR_HORIZONTAL, + /* Paints a GtkHPaned separator */ + MOZ_GTK_SPLITTER_SEPARATOR_VERTICAL, + /* Paints the background of a window, dialog or page. */ + MOZ_GTK_WINDOW, + /* Window container for all widgets */ + MOZ_GTK_WINDOW_CONTAINER, + /* Paints a GtkInfoBar, for notifications. */ + MOZ_GTK_INFO_BAR, + /* Used for widget tree construction. */ + MOZ_GTK_COMBOBOX, + /* Paints a GtkComboBox button widget. */ + MOZ_GTK_COMBOBOX_BUTTON, + /* Paints a GtkComboBox arrow widget. */ + MOZ_GTK_COMBOBOX_ARROW, + /* Paints a GtkComboBox separator widget. */ + MOZ_GTK_COMBOBOX_SEPARATOR, + /* Used for widget tree construction. */ + MOZ_GTK_COMBOBOX_ENTRY, + /* Paints a GtkComboBox entry widget. */ + MOZ_GTK_COMBOBOX_ENTRY_TEXTAREA, + /* Paints a GtkComboBox entry button widget. */ + MOZ_GTK_COMBOBOX_ENTRY_BUTTON, + /* Paints a GtkComboBox entry arrow widget. */ + MOZ_GTK_COMBOBOX_ENTRY_ARROW, + /* Used for scrolled window shell. */ + MOZ_GTK_SCROLLED_WINDOW, + + MOZ_GTK_WIDGET_NODE_COUNT +} WidgetNodeType; + +/*** General library functions ***/ +/** + * Initializes the drawing library. You must call this function + * prior to using any other functionality. + * returns: MOZ_GTK_SUCCESS if there were no errors + * MOZ_GTK_UNSAFE_THEME if the current theme engine is known + * to crash with gtkdrawing. + */ +gint moz_gtk_init(); + +/** + * Enable GTK+ 1.2.9+ theme enhancements. You must provide a pointer + * to the GTK+ 1.2.9+ function "gtk_style_get_prop_experimental". + * styleGetProp: pointer to gtk_style_get_prop_experimental + * + * returns: MOZ_GTK_SUCCESS if there was no error, an error code otherwise + */ +gint moz_gtk_enable_style_props(style_prop_t styleGetProp); + +/** + * Perform cleanup of the drawing library. You should call this function + * when your program exits, or you no longer need the library. + * + * returns: MOZ_GTK_SUCCESS if there was no error, an error code otherwise + */ +gint moz_gtk_shutdown(); + +#if (MOZ_WIDGET_GTK == 2) +/** + * Retrieves the colormap to use for drawables passed to moz_gtk_widget_paint. + */ +GdkColormap* moz_gtk_widget_get_colormap(); +#endif + +/*** Widget drawing ***/ +#if (MOZ_WIDGET_GTK == 2) +/** + * Paint a widget in the current theme. + * widget: a constant giving the widget to paint + * drawable: the drawable to paint to; + * it's colormap must be moz_gtk_widget_get_colormap(). + * rect: the bounding rectangle for the widget + * cliprect: a clipprect rectangle for this painting operation + * state: the state of the widget. ignored for some widgets. + * flags: widget-dependant flags; see the WidgetNodeType definition. + * direction: the text direction, to draw the widget correctly LTR and RTL. + */ +gint +moz_gtk_widget_paint(WidgetNodeType widget, GdkDrawable* drawable, + GdkRectangle* rect, GdkRectangle* cliprect, + GtkWidgetState* state, gint flags, + GtkTextDirection direction); +#else +gint +moz_gtk_widget_paint(WidgetNodeType widget, cairo_t *cr, + GdkRectangle* rect, + GtkWidgetState* state, gint flags, + GtkTextDirection direction); +#endif + + +/*** Widget metrics ***/ +/** + * Get the border size of a widget + * left/right: [OUT] the widget's left/right border + * top/bottom: [OUT] the widget's top/bottom border + * direction: the text direction for the widget + * inhtml: boolean indicating whether this widget will be drawn as a HTML form control, + * in order to workaround a size issue (MOZ_GTK_BUTTON only, ignored otherwise) + * + * returns: MOZ_GTK_SUCCESS if there was no error, an error code otherwise + */ +gint moz_gtk_get_widget_border(WidgetNodeType widget, gint* left, gint* top, + gint* right, gint* bottom, GtkTextDirection direction, + gboolean inhtml); + +/** + * Get the border size of a notebook tab + * left/right: [OUT] the tab's left/right border + * top/bottom: [OUT] the tab's top/bottom border + * direction: the text direction for the widget + * flags: tab-dependant flags; see the GtkTabFlags definition. + * widget: tab widget + * + * returns: MOZ_GTK_SUCCESS if there was no error, an error code otherwise + */ +gint +moz_gtk_get_tab_border(gint* left, gint* top, gint* right, gint* bottom, + GtkTextDirection direction, GtkTabFlags flags, + WidgetNodeType widget); + +/** + * Get the desired size of a GtkCheckButton + * indicator_size: [OUT] the indicator size + * indicator_spacing: [OUT] the spacing between the indicator and its + * container + * + * returns: MOZ_GTK_SUCCESS if there was no error, an error code otherwise + */ +gint +moz_gtk_checkbox_get_metrics(gint* indicator_size, gint* indicator_spacing); + +/** + * Get the desired size of a GtkRadioButton + * indicator_size: [OUT] the indicator size + * indicator_spacing: [OUT] the spacing between the indicator and its + * container + * + * returns: MOZ_GTK_SUCCESS if there was no error, an error code otherwise + */ +gint +moz_gtk_radio_get_metrics(gint* indicator_size, gint* indicator_spacing); + +/** Get the extra size for the focus ring for outline:auto. + * widget: [IN] the widget to get the focus metrics for + * focus_h_width: [OUT] the horizontal width + * focus_v_width: [OUT] the vertical width + * + * returns: MOZ_GTK_SUCCESS + */ +gint +moz_gtk_get_focus_outline_size(gint* focus_h_width, gint* focus_v_width); + +/** Get the horizontal padding for the menuitem widget or checkmenuitem widget. + * horizontal_padding: [OUT] The left and right padding of the menuitem or checkmenuitem + * + * returns: MOZ_GTK_SUCCESS if there was no error, an error code otherwise + */ +gint +moz_gtk_menuitem_get_horizontal_padding(gint* horizontal_padding); + +gint +moz_gtk_checkmenuitem_get_horizontal_padding(gint* horizontal_padding); + +/** + * Some GTK themes draw their indication for the default button outside + * the button (e.g. the glow in New Wave). This gets the extra space necessary. + * + * border_top: [OUT] extra space to add above + * border_left: [OUT] extra space to add to the left + * border_bottom: [OUT] extra space to add underneath + * border_right: [OUT] extra space to add to the right + * + * returns: MOZ_GTK_SUCCESS if there was no error, an error code otherwise + */ +gint +moz_gtk_button_get_default_overflow(gint* border_top, gint* border_left, + gint* border_bottom, gint* border_right); + +/** + * Gets the minimum size of a GtkScale. + * orient: [IN] the scale orientation + * scale_width: [OUT] the width of the scale + * scale_height: [OUT] the height of the scale + */ +void +moz_gtk_get_scale_metrics(GtkOrientation orient, gint* scale_width, + gint* scale_height); + +/** + * Get the desired size of a GtkScale thumb + * orient: [IN] the scale orientation + * thumb_length: [OUT] the length of the thumb + * thumb_height: [OUT] the height of the thumb + * + * returns: MOZ_GTK_SUCCESS if there was no error, an error code otherwise + */ +gint +moz_gtk_get_scalethumb_metrics(GtkOrientation orient, gint* thumb_length, gint* thumb_height); + +/** + * Get the desired metrics for a GtkScrollbar + * metrics: [IN] struct which will contain the metrics + * + * returns: MOZ_GTK_SUCCESS if there was no error, an error code otherwise + */ +gint +moz_gtk_get_scrollbar_metrics(MozGtkScrollbarMetrics* metrics); + +/** + * Get the desired size of a dropdown arrow button + * width: [OUT] the desired width + * height: [OUT] the desired height + * + * returns: MOZ_GTK_SUCCESS if there was no error, an error code otherwise + */ +gint moz_gtk_get_combo_box_entry_button_size(gint* width, gint* height); + +/** + * Get the desired size of a scroll arrow widget + * width: [OUT] the desired width + * height: [OUT] the desired height + * + * returns: MOZ_GTK_SUCCESS if there was no error, an error code otherwise + */ +gint moz_gtk_get_tab_scroll_arrow_size(gint* width, gint* height); + +/** + * Get the desired size of an arrow in a button + * + * widgetType: [IN] the widget for which to get the arrow size + * width: [OUT] the desired width + * height: [OUT] the desired height + */ +void +moz_gtk_get_arrow_size(WidgetNodeType widgetType, + gint* width, gint* height); + +/** + * Get the minimum height of a entry widget + * size: [OUT] the minimum height + * + */ +void moz_gtk_get_entry_min_height(gint* height); + +/** + * Get the desired size of a toolbar separator + * size: [OUT] the desired width + * + * returns: MOZ_GTK_SUCCESS if there was no error, an error code otherwise + */ +gint moz_gtk_get_toolbar_separator_width(gint* size); + +/** + * Get the size of a regular GTK expander that shows/hides content + * size: [OUT] the size of the GTK expander, size = width = height. + * + * returns: MOZ_GTK_SUCCESS if there was no error, an error code otherwise + */ +gint moz_gtk_get_expander_size(gint* size); + +/** + * Get the size of a treeview's expander (we call them twisties) + * size: [OUT] the size of the GTK expander, size = width = height. + * + * returns: MOZ_GTK_SUCCESS if there was no error, an error code otherwise + */ +gint moz_gtk_get_treeview_expander_size(gint* size); + +/** + * Get the desired height of a menu separator + * size: [OUT] the desired height + * + * returns: MOZ_GTK_SUCCESS if there was no error, an error code otherwise + */ +gint moz_gtk_get_menu_separator_height(gint* size); + +/** + * Get the desired size of a splitter + * orientation: [IN] GTK_ORIENTATION_HORIZONTAL or GTK_ORIENTATION_VERTICAL + * size: [OUT] width or height of the splitter handle + * + * returns: MOZ_GTK_SUCCESS if there was no error, an error code otherwise + */ +gint moz_gtk_splitter_get_metrics(gint orientation, gint* size); + +/** + * Retrieve an actual GTK scrollbar widget for style analysis. It will not + * be modified. + */ +GtkWidget* moz_gtk_get_scrollbar_widget(void); + +/** + * Get the YTHICKNESS of a tab (notebook extension). + */ +gint +moz_gtk_get_tab_thickness(WidgetNodeType aNodeType); + +/** + * Get a boolean which indicates whether the theme draws scrollbar buttons. + * If TRUE, draw scrollbar buttons. + */ +gboolean moz_gtk_has_scrollbar_buttons(void); + +/** + * Get minimum widget size as sum of margin, padding, border and min-width, + * min-height. + */ +void moz_gtk_get_widget_min_size(WidgetNodeType aGtkWidgetType, int* width, + int* height); + +#if (MOZ_WIDGET_GTK == 2) +#ifdef __cplusplus +} +#endif /* __cplusplus */ +#endif + +#endif |