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w32term.c
6532 lines (5402 loc) · 180 KB
/
w32term.c
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/* Implementation of GUI terminal on the Microsoft W32 API.
Copyright (C) 1989, 1993, 1994, 1995, 1996, 1997, 1998,
1999, 2000, 2001, 2002, 2003, 2004, 2005,
2006, 2007, 2008, 2009 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs 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 3 of the License, or
(at your option) any later version.
GNU Emacs 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 GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <setjmp.h>
#include "lisp.h"
#include "blockinput.h"
#include "w32term.h"
#include "systty.h"
#include "systime.h"
#include <ctype.h>
#include <errno.h>
#include <sys/stat.h>
#include <imm.h>
#include "charset.h"
#include "character.h"
#include "coding.h"
#include "ccl.h"
#include "frame.h"
#include "dispextern.h"
#include "fontset.h"
#include "termhooks.h"
#include "termopts.h"
#include "termchar.h"
#include "disptab.h"
#include "buffer.h"
#include "window.h"
#include "keyboard.h"
#include "intervals.h"
#include "process.h"
#include "atimer.h"
#include "keymap.h"
#include "w32heap.h"
#include <shellapi.h>
#include "font.h"
#include "w32font.h"
/* Fringe bitmaps. */
static int max_fringe_bmp = 0;
static HBITMAP *fringe_bmp = 0;
/* Non-nil means Emacs uses toolkit scroll bars. */
Lisp_Object Vx_toolkit_scroll_bars;
/* Temporary variables for w32_read_socket. */
static int last_mousemove_x = 0;
static int last_mousemove_y = 0;
/* Define GET_WHEEL_DELTA_WPARAM macro if system headers don't. */
#ifndef GET_WHEEL_DELTA_WPARAM
#define GET_WHEEL_DELTA_WPARAM(wparam) ((short)HIWORD (wparam))
#endif
/* Non-zero means that a HELP_EVENT has been generated since Emacs
start. */
static int any_help_event_p;
/* Last window where we saw the mouse. Used by mouse-autoselect-window. */
static Lisp_Object last_window;
/* Non-zero means make use of UNDERLINE_POSITION font properties. */
int x_use_underline_position_properties;
/* Non-zero means to draw the underline at the same place as the descent line. */
int x_underline_at_descent_line;
extern unsigned int msh_mousewheel;
extern void free_frame_menubar ();
extern int w32_codepage_for_font (char *fontname);
extern Cursor w32_load_cursor (LPCTSTR name);
extern Lisp_Object Vwindow_system;
#define x_any_window_to_frame x_window_to_frame
#define x_top_window_to_frame x_window_to_frame
/* This is display since w32 does not support multiple ones. */
struct w32_display_info one_w32_display_info;
struct w32_display_info *x_display_list;
/* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
one for each element of w32_display_list and in the same order.
NAME is the name of the frame.
FONT-LIST-CACHE records previous values returned by x-list-fonts. */
Lisp_Object w32_display_name_list;
#ifndef GLYPHSET
/* Pre Windows 2000, this was not available, but define it here so
that Emacs compiled on such a platform will run on newer versions. */
typedef struct tagWCRANGE
{
WCHAR wcLow;
USHORT cGlyphs;
} WCRANGE;
typedef struct tagGLYPHSET
{
DWORD cbThis;
DWORD flAccel;
DWORD cGlyphsSupported;
DWORD cRanges;
WCRANGE ranges[1];
} GLYPHSET;
#endif
/* Dynamic linking to SetLayeredWindowAttribute (only since 2000). */
BOOL (WINAPI *pfnSetLayeredWindowAttributes) (HWND, COLORREF, BYTE, DWORD);
#ifndef LWA_ALPHA
#define LWA_ALPHA 0x02
#endif
/* WS_EX_LAYERED is defined unconditionally by MingW, but only for W2K and
later targets by MSVC headers. */
#ifndef WS_EX_LAYERED
#define WS_EX_LAYERED 0x80000
#endif
/* Frame being updated by update_frame. This is declared in term.c.
This is set by update_begin and looked at by all the
w32 functions. It is zero while not inside an update.
In that case, the w32 functions assume that `SELECTED_FRAME ()'
is the frame to apply to. */
extern struct frame *updating_frame;
/* This is a frame waiting to be autoraised, within w32_read_socket. */
struct frame *pending_autoraise_frame;
/* The handle of the frame that currently owns the system caret. */
HWND w32_system_caret_hwnd;
int w32_system_caret_height;
int w32_system_caret_x;
int w32_system_caret_y;
int w32_use_visible_system_caret;
DWORD dwWindowsThreadId = 0;
HANDLE hWindowsThread = NULL;
DWORD dwMainThreadId = 0;
HANDLE hMainThread = NULL;
int vertical_scroll_bar_min_handle;
int vertical_scroll_bar_top_border;
int vertical_scroll_bar_bottom_border;
int last_scroll_bar_drag_pos;
/* Mouse movement. */
/* Where the mouse was last time we reported a mouse event. */
static RECT last_mouse_glyph;
static FRAME_PTR last_mouse_glyph_frame;
static Lisp_Object last_mouse_press_frame;
int w32_num_mouse_buttons;
Lisp_Object Vw32_swap_mouse_buttons;
/* Control whether x_raise_frame also sets input focus. */
Lisp_Object Vw32_grab_focus_on_raise;
/* Control whether Caps Lock affects non-ascii characters. */
Lisp_Object Vw32_capslock_is_shiftlock;
/* Control whether right-alt and left-ctrl should be recognized as AltGr. */
Lisp_Object Vw32_recognize_altgr;
/* The scroll bar in which the last motion event occurred.
If the last motion event occurred in a scroll bar, we set this
so w32_mouse_position can know whether to report a scroll bar motion or
an ordinary motion.
If the last motion event didn't occur in a scroll bar, we set this
to Qnil, to tell w32_mouse_position to return an ordinary motion event. */
static Lisp_Object last_mouse_scroll_bar;
static int last_mouse_scroll_bar_pos;
/* This is a hack. We would really prefer that w32_mouse_position would
return the time associated with the position it returns, but there
doesn't seem to be any way to wrest the time-stamp from the server
along with the position query. So, we just keep track of the time
of the last movement we received, and return that in hopes that
it's somewhat accurate. */
static Time last_mouse_movement_time;
/* Incremented by w32_read_socket whenever it really tries to read
events. */
#ifdef __STDC__
static int volatile input_signal_count;
#else
static int input_signal_count;
#endif
extern Lisp_Object Vcommand_line_args, Vsystem_name;
#ifndef USE_CRT_DLL
extern int errno;
#endif
/* A mask of extra modifier bits to put into every keyboard char. */
extern EMACS_INT extra_keyboard_modifiers;
/* Keyboard code page - may be changed by language-change events. */
static int keyboard_codepage;
static void x_update_window_end P_ ((struct window *, int, int));
static void w32_handle_tool_bar_click P_ ((struct frame *,
struct input_event *));
static void w32_define_cursor P_ ((Window, Cursor));
void x_lower_frame P_ ((struct frame *));
void x_scroll_bar_clear P_ ((struct frame *));
void x_wm_set_size_hint P_ ((struct frame *, long, int));
void x_raise_frame P_ ((struct frame *));
void x_set_window_size P_ ((struct frame *, int, int, int));
void x_wm_set_window_state P_ ((struct frame *, int));
void x_wm_set_icon_pixmap P_ ((struct frame *, int));
static void w32_initialize P_ ((void));
static void x_update_end P_ ((struct frame *));
static void w32_frame_up_to_date P_ ((struct frame *));
static void w32_set_terminal_modes P_ ((struct terminal *));
static void w32_reset_terminal_modes P_ ((struct terminal *));
static void x_clear_frame P_ ((struct frame *));
static void frame_highlight P_ ((struct frame *));
static void frame_unhighlight P_ ((struct frame *));
static void x_new_focus_frame P_ ((struct w32_display_info *,
struct frame *));
static void x_focus_changed P_ ((int, int, struct w32_display_info *,
struct frame *, struct input_event *));
static void w32_detect_focus_change P_ ((struct w32_display_info *,
W32Msg *, struct input_event *));
static void w32_frame_rehighlight P_ ((struct frame *));
static void x_frame_rehighlight P_ ((struct w32_display_info *));
static void x_draw_hollow_cursor P_ ((struct window *, struct glyph_row *));
static void x_draw_bar_cursor P_ ((struct window *, struct glyph_row *, int,
enum text_cursor_kinds));
static void w32_clip_to_row P_ ((struct window *, struct glyph_row *, int, HDC));
static BOOL my_show_window P_ ((struct frame *, HWND, int));
static void my_set_window_pos P_ ((HWND, HWND, int, int, int, int, UINT));
static void my_set_focus P_ ((struct frame *, HWND));
static void my_set_foreground_window P_ ((HWND));
static void my_destroy_window P_ ((struct frame *, HWND));
static Lisp_Object Qvendor_specific_keysyms;
/***********************************************************************
Debugging
***********************************************************************/
#if 0
/* This is a function useful for recording debugging information about
the sequence of occurrences in this file. */
struct record
{
char *locus;
int type;
};
struct record event_record[100];
int event_record_index;
record_event (locus, type)
char *locus;
int type;
{
if (event_record_index == sizeof (event_record) / sizeof (struct record))
event_record_index = 0;
event_record[event_record_index].locus = locus;
event_record[event_record_index].type = type;
event_record_index++;
}
#endif /* 0 */
void
XChangeGC (void * ignore, XGCValues* gc, unsigned long mask,
XGCValues *xgcv)
{
if (mask & GCForeground)
gc->foreground = xgcv->foreground;
if (mask & GCBackground)
gc->background = xgcv->background;
if (mask & GCFont)
gc->font = xgcv->font;
}
XGCValues *XCreateGC (void * ignore, Window window, unsigned long mask,
XGCValues *xgcv)
{
XGCValues *gc = (XGCValues *) xmalloc (sizeof (XGCValues));
bzero (gc, sizeof (XGCValues));
XChangeGC (ignore, gc, mask, xgcv);
return gc;
}
void
XGetGCValues (void* ignore, XGCValues *gc,
unsigned long mask, XGCValues *xgcv)
{
XChangeGC (ignore, xgcv, mask, gc);
}
static void
w32_set_clip_rectangle (HDC hdc, RECT *rect)
{
if (rect)
{
HRGN clip_region = CreateRectRgnIndirect (rect);
SelectClipRgn (hdc, clip_region);
DeleteObject (clip_region);
}
else
SelectClipRgn (hdc, NULL);
}
/* Draw a hollow rectangle at the specified position. */
void
w32_draw_rectangle (HDC hdc, XGCValues *gc, int x, int y,
int width, int height)
{
HBRUSH hb, oldhb;
HPEN hp, oldhp;
hb = CreateSolidBrush (gc->background);
hp = CreatePen (PS_SOLID, 0, gc->foreground);
oldhb = SelectObject (hdc, hb);
oldhp = SelectObject (hdc, hp);
Rectangle (hdc, x, y, x + width, y + height);
SelectObject (hdc, oldhb);
SelectObject (hdc, oldhp);
DeleteObject (hb);
DeleteObject (hp);
}
/* Draw a filled rectangle at the specified position. */
void
w32_fill_rect (f, hdc, pix, lprect)
FRAME_PTR f;
HDC hdc;
COLORREF pix;
RECT * lprect;
{
HBRUSH hb;
hb = CreateSolidBrush (pix);
FillRect (hdc, lprect, hb);
DeleteObject (hb);
}
void
w32_clear_window (f)
FRAME_PTR f;
{
RECT rect;
HDC hdc = get_frame_dc (f);
/* Under certain conditions, this can be called at startup with
a console frame pointer before the GUI frame is created. An HDC
of 0 indicates this. */
if (hdc)
{
GetClientRect (FRAME_W32_WINDOW (f), &rect);
w32_clear_rect (f, hdc, &rect);
}
release_frame_dc (f, hdc);
}
#define OPAQUE_FRAME 255
void
x_set_frame_alpha (f)
struct frame *f;
{
struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
double alpha = 1.0;
double alpha_min = 1.0;
BYTE opac;
LONG ex_style;
HWND window = FRAME_W32_WINDOW (f);
/* Older versions of Windows do not support transparency. */
if (!pfnSetLayeredWindowAttributes)
return;
if (dpyinfo->x_highlight_frame == f)
alpha = f->alpha[0];
else
alpha = f->alpha[1];
if (FLOATP (Vframe_alpha_lower_limit))
alpha_min = XFLOAT_DATA (Vframe_alpha_lower_limit);
else if (INTEGERP (Vframe_alpha_lower_limit))
alpha_min = (XINT (Vframe_alpha_lower_limit)) / 100.0;
if (alpha < 0.0)
return;
else if (alpha > 1.0)
alpha = 1.0;
else if (alpha < alpha_min && alpha_min <= 1.0)
alpha = alpha_min;
opac = alpha * OPAQUE_FRAME;
ex_style = GetWindowLong (window, GWL_EXSTYLE);
if (opac == OPAQUE_FRAME)
ex_style &= ~WS_EX_LAYERED;
else
ex_style |= WS_EX_LAYERED;
SetWindowLong (window, GWL_EXSTYLE, ex_style);
if (opac != OPAQUE_FRAME)
pfnSetLayeredWindowAttributes (window, 0, opac, LWA_ALPHA);
}
int
x_display_pixel_height (dpyinfo)
struct w32_display_info *dpyinfo;
{
HDC dc = GetDC (NULL);
int pixels = GetDeviceCaps (dc, VERTRES);
ReleaseDC (NULL, dc);
return pixels;
}
int
x_display_pixel_width (dpyinfo)
struct w32_display_info *dpyinfo;
{
HDC dc = GetDC (NULL);
int pixels = GetDeviceCaps (dc, HORZRES);
ReleaseDC (NULL, dc);
return pixels;
}
/***********************************************************************
Starting and ending an update
***********************************************************************/
/* Start an update of frame F. This function is installed as a hook
for update_begin, i.e. it is called when update_begin is called.
This function is called prior to calls to x_update_window_begin for
each window being updated. */
static void
x_update_begin (f)
struct frame *f;
{
struct w32_display_info *display_info = FRAME_W32_DISPLAY_INFO (f);
if (! FRAME_W32_P (f))
return;
/* Regenerate display palette before drawing if list of requested
colors has changed. */
if (display_info->regen_palette)
{
w32_regenerate_palette (f);
display_info->regen_palette = FALSE;
}
}
/* Start update of window W. Set the global variable updated_window
to the window being updated and set output_cursor to the cursor
position of W. */
static void
x_update_window_begin (w)
struct window *w;
{
struct frame *f = XFRAME (WINDOW_FRAME (w));
struct w32_display_info *display_info = FRAME_W32_DISPLAY_INFO (f);
/* Hide the system caret during an update. */
if (w32_use_visible_system_caret && w32_system_caret_hwnd)
{
SendMessage (w32_system_caret_hwnd, WM_EMACS_HIDE_CARET, 0, 0);
}
updated_window = w;
set_output_cursor (&w->cursor);
BLOCK_INPUT;
if (f == display_info->mouse_face_mouse_frame)
{
/* Don't do highlighting for mouse motion during the update. */
display_info->mouse_face_defer = 1;
/* If F needs to be redrawn, simply forget about any prior mouse
highlighting. */
if (FRAME_GARBAGED_P (f))
display_info->mouse_face_window = Qnil;
#if 0 /* Rows in a current matrix containing glyphs in mouse-face have
their mouse_face_p flag set, which means that they are always
unequal to rows in a desired matrix which never have that
flag set. So, rows containing mouse-face glyphs are never
scrolled, and we don't have to switch the mouse highlight off
here to prevent it from being scrolled. */
/* Can we tell that this update does not affect the window
where the mouse highlight is? If so, no need to turn off.
Likewise, don't do anything if the frame is garbaged;
in that case, the frame's current matrix that we would use
is all wrong, and we will redisplay that line anyway. */
if (!NILP (display_info->mouse_face_window)
&& w == XWINDOW (display_info->mouse_face_window))
{
int i;
for (i = 0; i < w->desired_matrix->nrows; ++i)
if (MATRIX_ROW_ENABLED_P (w->desired_matrix, i))
break;
if (i < w->desired_matrix->nrows)
clear_mouse_face (display_info);
}
#endif /* 0 */
}
UNBLOCK_INPUT;
}
/* Draw a vertical window border from (x,y0) to (x,y1) */
static void
w32_draw_vertical_window_border (w, x, y0, y1)
struct window *w;
int x, y0, y1;
{
struct frame *f = XFRAME (WINDOW_FRAME (w));
RECT r;
HDC hdc;
struct face *face;
r.left = x;
r.right = x + 1;
r.top = y0;
r.bottom = y1;
hdc = get_frame_dc (f);
face = FACE_FROM_ID (f, VERTICAL_BORDER_FACE_ID);
if (face)
w32_fill_rect (f, hdc, face->foreground, &r);
else
w32_fill_rect (f, hdc, FRAME_FOREGROUND_PIXEL (f), &r);
release_frame_dc (f, hdc);
}
/* End update of window W (which is equal to updated_window).
Draw vertical borders between horizontally adjacent windows, and
display W's cursor if CURSOR_ON_P is non-zero.
MOUSE_FACE_OVERWRITTEN_P non-zero means that some row containing
glyphs in mouse-face were overwritten. In that case we have to
make sure that the mouse-highlight is properly redrawn.
W may be a menu bar pseudo-window in case we don't have X toolkit
support. Such windows don't have a cursor, so don't display it
here. */
static void
x_update_window_end (w, cursor_on_p, mouse_face_overwritten_p)
struct window *w;
int cursor_on_p, mouse_face_overwritten_p;
{
struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (XFRAME (w->frame));
if (!w->pseudo_window_p)
{
BLOCK_INPUT;
if (cursor_on_p)
display_and_set_cursor (w, 1, output_cursor.hpos,
output_cursor.vpos,
output_cursor.x, output_cursor.y);
if (draw_window_fringes (w, 1))
x_draw_vertical_border (w);
UNBLOCK_INPUT;
}
/* If a row with mouse-face was overwritten, arrange for
XTframe_up_to_date to redisplay the mouse highlight. */
if (mouse_face_overwritten_p)
{
dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1;
dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1;
dpyinfo->mouse_face_window = Qnil;
}
/* Unhide the caret. This won't actually show the cursor, unless it
was visible before the corresponding call to HideCaret in
x_update_window_begin. */
if (w32_use_visible_system_caret && w32_system_caret_hwnd)
{
SendMessage (w32_system_caret_hwnd, WM_EMACS_SHOW_CARET, 0, 0);
}
updated_window = NULL;
}
/* End update of frame F. This function is installed as a hook in
update_end. */
static void
x_update_end (f)
struct frame *f;
{
if (! FRAME_W32_P (f))
return;
/* Mouse highlight may be displayed again. */
FRAME_W32_DISPLAY_INFO (f)->mouse_face_defer = 0;
}
/* This function is called from various places in xdisp.c whenever a
complete update has been performed. The global variable
updated_window is not available here. */
static void
w32_frame_up_to_date (f)
struct frame *f;
{
if (FRAME_W32_P (f))
{
struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
if (dpyinfo->mouse_face_deferred_gc
|| f == dpyinfo->mouse_face_mouse_frame)
{
BLOCK_INPUT;
if (dpyinfo->mouse_face_mouse_frame)
note_mouse_highlight (dpyinfo->mouse_face_mouse_frame,
dpyinfo->mouse_face_mouse_x,
dpyinfo->mouse_face_mouse_y);
dpyinfo->mouse_face_deferred_gc = 0;
UNBLOCK_INPUT;
}
}
}
/* Draw truncation mark bitmaps, continuation mark bitmaps, overlay
arrow bitmaps, or clear the fringes if no bitmaps are required
before DESIRED_ROW is made current. The window being updated is
found in updated_window. This function is called from
update_window_line only if it is known that there are differences
between bitmaps to be drawn between current row and DESIRED_ROW. */
static void
x_after_update_window_line (desired_row)
struct glyph_row *desired_row;
{
struct window *w = updated_window;
struct frame *f;
int width, height;
xassert (w);
if (!desired_row->mode_line_p && !w->pseudo_window_p)
desired_row->redraw_fringe_bitmaps_p = 1;
/* When a window has disappeared, make sure that no rest of
full-width rows stays visible in the internal border. Could
check here if updated_window is the leftmost/rightmost window,
but I guess it's not worth doing since vertically split windows
are almost never used, internal border is rarely set, and the
overhead is very small. */
if (windows_or_buffers_changed
&& desired_row->full_width_p
&& (f = XFRAME (w->frame),
width = FRAME_INTERNAL_BORDER_WIDTH (f),
width != 0)
&& (height = desired_row->visible_height,
height > 0))
{
int y = WINDOW_TO_FRAME_PIXEL_Y (w, max (0, desired_row->y));
/* Internal border is drawn below the tool bar. */
if (WINDOWP (f->tool_bar_window)
&& w == XWINDOW (f->tool_bar_window))
y -= width;
BLOCK_INPUT;
{
HDC hdc = get_frame_dc (f);
w32_clear_area (f, hdc, 0, y, width, height);
w32_clear_area (f, hdc, FRAME_PIXEL_WIDTH (f) - width,
y, width, height);
release_frame_dc (f, hdc);
}
UNBLOCK_INPUT;
}
}
/* Draw the bitmap WHICH in one of the left or right fringes of
window W. ROW is the glyph row for which to display the bitmap; it
determines the vertical position at which the bitmap has to be
drawn. */
static void
w32_draw_fringe_bitmap (w, row, p)
struct window *w;
struct glyph_row *row;
struct draw_fringe_bitmap_params *p;
{
struct frame *f = XFRAME (WINDOW_FRAME (w));
HDC hdc;
struct face *face = p->face;
int rowY;
hdc = get_frame_dc (f);
if (!p->overlay_p)
{
int bx = p->bx, by = p->by, nx = p->nx, ny = p->ny;
/* If the fringe is adjacent to the left (right) scroll bar of a
leftmost (rightmost, respectively) window, then extend its
background to the gap between the fringe and the bar. */
if ((WINDOW_LEFTMOST_P (w)
&& WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w))
|| (WINDOW_RIGHTMOST_P (w)
&& WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w)))
{
int sb_width = WINDOW_CONFIG_SCROLL_BAR_WIDTH (w);
if (sb_width > 0)
{
int left = WINDOW_SCROLL_BAR_AREA_X (w);
int width = (WINDOW_CONFIG_SCROLL_BAR_COLS (w)
* FRAME_COLUMN_WIDTH (f));
if (bx < 0)
{
/* Bitmap fills the fringe. */
if (left + width == p->x)
bx = left + sb_width;
else if (p->x + p->wd == left)
bx = left;
if (bx >= 0)
{
int header_line_height = WINDOW_HEADER_LINE_HEIGHT (w);
nx = width - sb_width;
by = WINDOW_TO_FRAME_PIXEL_Y (w, max (header_line_height,
row->y));
ny = row->visible_height;
}
}
else
{
if (left + width == bx)
{
bx = left + sb_width;
nx += width - sb_width;
}
else if (bx + nx == left)
nx += width - sb_width;
}
}
}
if (bx >= 0 && nx > 0)
w32_fill_area (f, hdc, face->background, bx, by, nx, ny);
}
/* Must clip because of partially visible lines. */
rowY = WINDOW_TO_FRAME_PIXEL_Y (w, row->y);
if (p->y < rowY)
{
/* Adjust position of "bottom aligned" bitmap on partially
visible last row. */
int oldY = row->y;
int oldVH = row->visible_height;
row->visible_height = p->h;
row->y -= rowY - p->y;
w32_clip_to_row (w, row, -1, hdc);
row->y = oldY;
row->visible_height = oldVH;
}
else
w32_clip_to_row (w, row, -1, hdc);
if (p->which && p->which < max_fringe_bmp)
{
HBITMAP pixmap = fringe_bmp[p->which];
HDC compat_hdc;
HANDLE horig_obj;
compat_hdc = CreateCompatibleDC (hdc);
SaveDC (hdc);
horig_obj = SelectObject (compat_hdc, pixmap);
/* Paint overlays transparently. */
if (p->overlay_p)
{
HBRUSH h_brush, h_orig_brush;
SetTextColor (hdc, BLACK_PIX_DEFAULT (f));
SetBkColor (hdc, WHITE_PIX_DEFAULT (f));
h_brush = CreateSolidBrush (face->foreground);
h_orig_brush = SelectObject (hdc, h_brush);
BitBlt (hdc, p->x, p->y, p->wd, p->h,
compat_hdc, 0, p->dh,
DSTINVERT);
BitBlt (hdc, p->x, p->y, p->wd, p->h,
compat_hdc, 0, p->dh,
0x2E064A);
BitBlt (hdc, p->x, p->y, p->wd, p->h,
compat_hdc, 0, p->dh,
DSTINVERT);
SelectObject (hdc, h_orig_brush);
DeleteObject (h_brush);
}
else
{
SetTextColor (hdc, face->background);
SetBkColor (hdc, (p->cursor_p
? f->output_data.w32->cursor_pixel
: face->foreground));
BitBlt (hdc, p->x, p->y, p->wd, p->h,
compat_hdc, 0, p->dh,
SRCCOPY);
}
SelectObject (compat_hdc, horig_obj);
DeleteDC (compat_hdc);
RestoreDC (hdc, -1);
}
w32_set_clip_rectangle (hdc, NULL);
release_frame_dc (f, hdc);
}
static void
w32_define_fringe_bitmap (which, bits, h, wd)
int which;
unsigned short *bits;
int h, wd;
{
if (which >= max_fringe_bmp)
{
int i = max_fringe_bmp;
max_fringe_bmp = which + 20;
fringe_bmp = (HBITMAP *) xrealloc (fringe_bmp, max_fringe_bmp * sizeof (HBITMAP));
while (i < max_fringe_bmp)
fringe_bmp[i++] = 0;
}
fringe_bmp[which] = CreateBitmap (wd, h, 1, 1, bits);
}
static void
w32_destroy_fringe_bitmap (which)
int which;
{
if (which >= max_fringe_bmp)
return;
if (fringe_bmp[which])
DeleteObject (fringe_bmp[which]);
fringe_bmp[which] = 0;
}
/* This is called when starting Emacs and when restarting after
suspend. When starting Emacs, no window is mapped. And nothing
must be done to Emacs's own window if it is suspended (though that
rarely happens). */
static void
w32_set_terminal_modes (struct terminal *term)
{
}
/* This is called when exiting or suspending Emacs. Exiting will make
the W32 windows go away, and suspending requires no action. */
static void
w32_reset_terminal_modes (struct terminal *term)
{
}
/***********************************************************************
Display Iterator
***********************************************************************/
/* Function prototypes of this page. */
static void x_set_glyph_string_clipping P_ ((struct glyph_string *));
static void x_set_glyph_string_gc P_ ((struct glyph_string *));
static void x_draw_glyph_string_background P_ ((struct glyph_string *,
int));
static void x_draw_glyph_string_foreground P_ ((struct glyph_string *));
static void x_draw_composite_glyph_string_foreground P_ ((struct glyph_string *));
static void x_draw_glyph_string_box P_ ((struct glyph_string *));
static void x_draw_glyph_string P_ ((struct glyph_string *));
static void x_set_cursor_gc P_ ((struct glyph_string *));
static void x_set_mode_line_face_gc P_ ((struct glyph_string *));
static void x_set_mouse_face_gc P_ ((struct glyph_string *));
static int w32_alloc_lighter_color (struct frame *, COLORREF *, double, int);
static void w32_setup_relief_color P_ ((struct frame *, struct relief *,
double, int, COLORREF));
static void x_setup_relief_colors P_ ((struct glyph_string *));
static void x_draw_image_glyph_string P_ ((struct glyph_string *));
static void x_draw_image_relief P_ ((struct glyph_string *));
static void x_draw_image_foreground P_ ((struct glyph_string *));
static void w32_draw_image_foreground_1 P_ ((struct glyph_string *, HBITMAP));
static void x_clear_glyph_string_rect P_ ((struct glyph_string *, int,
int, int, int));
static void w32_draw_relief_rect P_ ((struct frame *, int, int, int, int,
int, int, int, int, int, int,
RECT *));
static void w32_draw_box_rect P_ ((struct glyph_string *, int, int, int, int,
int, int, int, RECT *));
/* Set S->gc to a suitable GC for drawing glyph string S in cursor
face. */
static void
x_set_cursor_gc (s)
struct glyph_string *s;
{
if (s->font == FRAME_FONT (s->f)
&& s->face->background == FRAME_BACKGROUND_PIXEL (s->f)
&& s->face->foreground == FRAME_FOREGROUND_PIXEL (s->f)
&& !s->cmp)
s->gc = s->f->output_data.w32->cursor_gc;
else
{