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https://gitlab.gnome.org/GNOME/gimp
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app: add new files gimpdisplayshell-style.[ch]
which contains functions to set styles on a cairo_t.
This commit is contained in:
Michael Natterer
parent
1a609d6381
commit
002003a2ea
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@ -71,6 +71,8 @@ libappdisplay_a_sources = \
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gimpdisplayshell-scroll.h \
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gimpdisplayshell-selection.c \
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gimpdisplayshell-selection.h \
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gimpdisplayshell-style.c \
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gimpdisplayshell-style.h \
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gimpdisplayshell-title.c \
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gimpdisplayshell-title.h \
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gimpdisplayshell-transform.c \
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@ -21,7 +21,6 @@
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#include <gtk/gtk.h>
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#include "libgimpbase/gimpbase.h"
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#include "libgimpcolor/gimpcolor.h"
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#include "libgimpmath/gimpmath.h"
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#include "libgimpwidgets/gimpwidgets.h"
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@ -52,17 +51,15 @@
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#include "gimpdisplayshell-render.h"
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#include "gimpdisplayshell-scale.h"
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#include "gimpdisplayshell-scroll.h"
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#include "gimpdisplayshell-style.h"
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#include "gimpdisplayshell-transform.h"
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/* local function prototypes */
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static void gimp_display_shell_set_grid_style (GimpDisplayShell *shell,
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GimpGrid *grid,
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cairo_t *cr);
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static GdkGC * gimp_display_shell_get_pen_gc (GimpDisplayShell *shell,
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GimpContext *context,
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GimpActiveColor active);
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static GdkGC * gimp_display_shell_get_pen_gc (GimpDisplayShell *shell,
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GimpContext *context,
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GimpActiveColor active);
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/* public functions */
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@ -690,73 +687,6 @@ gimp_display_shell_draw_area (GimpDisplayShell *shell,
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/* private functions */
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static void
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gimp_display_shell_set_grid_style (GimpDisplayShell *shell,
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GimpGrid *grid,
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cairo_t *cr)
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{
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cairo_set_line_width (cr, 1.0);
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switch (grid->style)
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{
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case GIMP_GRID_ON_OFF_DASH:
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case GIMP_GRID_DOUBLE_DASH:
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{
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guchar *data = g_malloc0 (8 * 8 * 4);
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guchar fg_r, fg_g, fg_b, fg_a;
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guchar bg_r, bg_g, bg_b, bg_a;
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gint x, y;
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guchar *d;
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cairo_surface_t *surface;
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static cairo_user_data_key_t data_key;
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gimp_rgba_get_uchar (&grid->fgcolor, &fg_r, &fg_g, &fg_b, &fg_a);
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if (grid->style == GIMP_GRID_DOUBLE_DASH)
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gimp_rgba_get_uchar (&grid->bgcolor, &bg_r, &bg_g, &bg_b, &bg_a);
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else
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bg_r = bg_g = bg_b = bg_a = 0;
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d = data;
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for (y = 0; y < 8; y++)
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{
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for (x = 0; x < 8; x++)
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{
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if ((y < 4 && x < 4) || (y >= 4 && x >= 4))
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GIMP_CAIRO_ARGB32_SET_PIXEL (d, fg_r, fg_g, fg_b, fg_a);
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else
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GIMP_CAIRO_ARGB32_SET_PIXEL (d, bg_r, bg_g, bg_b, bg_a);
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d += 4;
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}
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}
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surface = cairo_image_surface_create_for_data (data,
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CAIRO_FORMAT_ARGB32,
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8, 8, 8 * 4);
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cairo_surface_set_user_data (surface, &data_key,
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data, (cairo_destroy_func_t) g_free);
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cairo_set_source_surface (cr, surface, 0, 0);
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cairo_surface_destroy (surface);
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cairo_pattern_set_extend (cairo_get_source (cr),
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CAIRO_EXTEND_REPEAT);
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}
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break;
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case GIMP_GRID_DOTS:
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case GIMP_GRID_INTERSECTIONS:
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case GIMP_GRID_SOLID:
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cairo_set_source_rgb (cr,
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grid->fgcolor.r,
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grid->fgcolor.g,
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grid->fgcolor.b);
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break;
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}
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}
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static GdkGC *
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gimp_display_shell_get_pen_gc (GimpDisplayShell *shell,
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GimpContext *context,
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106
app/display/gimpdisplayshell-style.c
Normal file
106
app/display/gimpdisplayshell-style.c
Normal file
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@ -0,0 +1,106 @@
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/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* gimpdisplayshell-style.c
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* Copyright (C) 2010 Michael Natterer <mitch@gimp.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "libgimpcolor/gimpcolor.h"
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#include "libgimpwidgets/gimpwidgets.h"
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#include "display-types.h"
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#include "core/gimpgrid.h"
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#include "gimpdisplayshell.h"
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#include "gimpdisplayshell-style.h"
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void
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gimp_display_shell_set_grid_style (GimpDisplayShell *shell,
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GimpGrid *grid,
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cairo_t *cr)
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{
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g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
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g_return_if_fail (GIMP_IS_GRID (grid));
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g_return_if_fail (cr != NULL);
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cairo_set_line_width (cr, 1.0);
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switch (grid->style)
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{
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case GIMP_GRID_ON_OFF_DASH:
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case GIMP_GRID_DOUBLE_DASH:
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{
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guchar *data = g_malloc0 (8 * 8 * 4);
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guchar fg_r, fg_g, fg_b, fg_a;
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guchar bg_r, bg_g, bg_b, bg_a;
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gint x, y;
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guchar *d;
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cairo_surface_t *surface;
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static cairo_user_data_key_t data_key;
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gimp_rgba_get_uchar (&grid->fgcolor, &fg_r, &fg_g, &fg_b, &fg_a);
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if (grid->style == GIMP_GRID_DOUBLE_DASH)
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gimp_rgba_get_uchar (&grid->bgcolor, &bg_r, &bg_g, &bg_b, &bg_a);
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else
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bg_r = bg_g = bg_b = bg_a = 0;
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d = data;
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for (y = 0; y < 8; y++)
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{
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for (x = 0; x < 8; x++)
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{
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if ((y < 4 && x < 4) || (y >= 4 && x >= 4))
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GIMP_CAIRO_ARGB32_SET_PIXEL (d, fg_r, fg_g, fg_b, fg_a);
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else
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GIMP_CAIRO_ARGB32_SET_PIXEL (d, bg_r, bg_g, bg_b, bg_a);
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d += 4;
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}
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}
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surface = cairo_image_surface_create_for_data (data,
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CAIRO_FORMAT_ARGB32,
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8, 8, 8 * 4);
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cairo_surface_set_user_data (surface, &data_key,
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data, (cairo_destroy_func_t) g_free);
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cairo_set_source_surface (cr, surface, 0, 0);
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cairo_surface_destroy (surface);
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cairo_pattern_set_extend (cairo_get_source (cr),
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CAIRO_EXTEND_REPEAT);
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}
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break;
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case GIMP_GRID_DOTS:
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case GIMP_GRID_INTERSECTIONS:
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case GIMP_GRID_SOLID:
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cairo_set_source_rgb (cr,
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grid->fgcolor.r,
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grid->fgcolor.g,
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grid->fgcolor.b);
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break;
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}
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}
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30
app/display/gimpdisplayshell-style.h
Normal file
30
app/display/gimpdisplayshell-style.h
Normal file
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@ -0,0 +1,30 @@
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/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* gimpdisplayshell-style.h
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* Copyright (C) 2010 Michael Natterer <mitch@gimp.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __GIMP_DISPLAY_SHELL_STYLE_H__
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#define __GIMP_DISPLAY_SHELL_STYLE_H__
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void gimp_display_shell_set_grid_style (GimpDisplayShell *shell,
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GimpGrid *grid,
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cairo_t *cr);
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#endif /* __GIMP_DISPLAY_SHELL_STYLE_H__ */
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