diff options
Diffstat (limited to 'backend/dvi/pixbuf-device.c')
| -rw-r--r-- | backend/dvi/pixbuf-device.c | 220 |
1 files changed, 0 insertions, 220 deletions
diff --git a/backend/dvi/pixbuf-device.c b/backend/dvi/pixbuf-device.c deleted file mode 100644 index 1ef4365..0000000 --- a/backend/dvi/pixbuf-device.c +++ /dev/null @@ -1,220 +0,0 @@ -#include "pixbuf-device.h" -#include <gtk/gtk.h> - -typedef struct _DviPixbufDevice -{ - GdkPixbuf *pixbuf; - - gboolean valid; - - gint xmargin; - gint ymargin; - - Ulong fg; - Ulong bg; - -} DviPixbufDevice; - -static void dvi_pixbuf_draw_rule(DviContext *dvi, int x, int y, Uint w, Uint h, int fill); - -static void dvi_pixbuf_draw_glyph(DviContext *dvi, DviFontChar *ch, int x0, int y0) -{ - DviPixbufDevice *c_device = (DviPixbufDevice *) dvi->device.device_data; - - int x, y, w, h; - int isbox; - DviGlyph *glyph; - - glyph = &ch->grey; - - isbox = (glyph->data == NULL || (dvi->params.flags & MDVI_PARAM_CHARBOXES)); - - x = - glyph->x + x0 + c_device->xmargin; - y = - glyph->y + y0 + c_device->ymargin; - w = glyph->w; - h = glyph->h; - - if (x < 0 || y < 0 - || x + w > gdk_pixbuf_get_width (c_device->pixbuf) - || y + h > gdk_pixbuf_get_height (c_device->pixbuf)) - return; - - if (isbox) { - dvi_pixbuf_draw_rule(dvi, x - c_device->xmargin, y - c_device->ymargin, w, h, FALSE); - } - else { - gdk_pixbuf_copy_area (GDK_PIXBUF (glyph->data), - 0, 0, - w, h, - c_device->pixbuf, x, y); - } -} - -static void dvi_pixbuf_draw_rule(DviContext *dvi, int x, int y, Uint w, Uint h, int fill) -{ - DviPixbufDevice *c_device = (DviPixbufDevice *) dvi->device.device_data; - gint rowstride; - guchar *p; - gint i, j; - gint red, green, blue; - - red = (c_device->fg >> 16) & 0xff; - green = (c_device->fg >> 8) & 0xff; - blue = c_device->fg & 0xff; - - x += c_device->xmargin; y += c_device->ymargin; - - if (x < 0 || y < 0 - || x + w > gdk_pixbuf_get_width (c_device->pixbuf) - || y + h > gdk_pixbuf_get_height (c_device->pixbuf)) - return; - - rowstride = gdk_pixbuf_get_rowstride (c_device->pixbuf); - p = gdk_pixbuf_get_pixels (c_device->pixbuf) + rowstride * y + 3 * x; - - for (i = 0; i < h; i++) { - if (i == 0 || i == h - 1 || fill) { - for (j = 0; j < w; j++) { - p[j * 3] = red; - p[j * 3 + 1] = green; - p[j * 3 + 2] = blue; - } - } else { - p[0] = red; - p[1] = green; - p[2] = blue; - p[(w - 1) * 3] = red; - p[(w - 1) * 3 + 1] = green; - p[(w - 1) * 3 + 2] = blue; - } - p += rowstride; - } -} - -static int dvi_pixbuf_interpolate_colors(void *device_data, - Ulong *pixels, int nlevels, Ulong fg, Ulong bg, double g, int density) -{ - double frac; - GdkColor color, color_fg, color_bg; - int i, n; - - color_bg.red = (bg >> 16) & 0xff; - color_bg.green = (bg >> 8) & 0xff; - color_bg.blue = bg & 0xff; - - color_fg.red = fg >> 16 & 0xff; - color_fg.green = fg >> 8 & 0xff; - color_fg.blue = fg & 0xff; - - n = nlevels - 1; - for(i = 0; i < nlevels; i++) { - if(g > 0) - frac = pow((double)i / n, 1 / g); - else - frac = 1 - pow((double)(n - i) / n, -g); - color.red = frac * ((double)color_fg.red - color_bg.red) + color_bg.red; - color.green = frac * ((double)color_fg.green - color_bg.green) + color_bg.green; - color.blue = frac * ((double)color_fg.blue - color_bg.blue) + color_bg.blue; - - pixels[i] = (color.red << 16) + (color.green << 8) + color.blue + 0xff000000; - } - - return nlevels; -} - -static void *dvi_pixbuf_create_image(void *device_data, Uint w, Uint h, Uint bpp) -{ - - return gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, w, h); - - return NULL; -} - -static void dvi_pixbuf_free_image(void *ptr) -{ - g_object_unref (GDK_PIXBUF(ptr)); -} - -static void dvi_pixbuf_put_pixel(void *image, int x, int y, Ulong color) -{ - guchar *p; - - p = gdk_pixbuf_get_pixels (GDK_PIXBUF(image)) + y * gdk_pixbuf_get_rowstride(GDK_PIXBUF(image)) + x * 3; - - p[0] = (color >> 16) & 0xff; - p[1] = (color >> 8) & 0xff; - p[2] = color & 0xff; -} - -static void dvi_pixbuf_set_color(void *device_data, Ulong fg, Ulong bg) -{ - DviPixbufDevice *c_device = (DviPixbufDevice *) device_data; - - c_device->fg = fg; - - return; -} - -void mdvi_pixbuf_device_init (DviDevice *device) -{ - device->device_data = - g_new0 (DviPixbufDevice, 1); - - device->draw_glyph = dvi_pixbuf_draw_glyph; - device->draw_rule = dvi_pixbuf_draw_rule; - device->alloc_colors = dvi_pixbuf_interpolate_colors; - device->create_image = dvi_pixbuf_create_image; - device->free_image = dvi_pixbuf_free_image; - device->put_pixel = dvi_pixbuf_put_pixel; - device->set_color = dvi_pixbuf_set_color; - device->refresh = NULL; - - return; -} - -void mdvi_pixbuf_device_free (DviDevice *device) -{ - DviPixbufDevice *c_device = (DviPixbufDevice *) device->device_data; - - if (c_device->pixbuf) - g_object_unref (c_device->pixbuf); - - g_free (c_device); -} - -GdkPixbuf * -mdvi_pixbuf_device_get_pixbuf (DviDevice *device) -{ - DviPixbufDevice *c_device = (DviPixbufDevice *) device->device_data; - - return g_object_ref (c_device->pixbuf); -} - -void -mdvi_pixbuf_device_render (DviContext * dvi) -{ - DviPixbufDevice *c_device = (DviPixbufDevice *) dvi->device.device_data; - gint page_width; - gint page_height; - - if (c_device->pixbuf) - g_object_unref (c_device->pixbuf); - - page_width = dvi->dvi_page_w * dvi->params.conv + 2 * c_device->xmargin; - page_height = dvi->dvi_page_h * dvi->params.vconv + 2 * c_device->ymargin; - - c_device->pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, page_width, page_height); - gdk_pixbuf_fill (c_device->pixbuf, 0xffffffff); - - mdvi_dopage (dvi, dvi->currpage); -} - - -void -mdvi_pixbuf_device_set_margins (DviDevice *device, gint xmargin, gint ymargin) -{ - DviPixbufDevice *c_device = (DviPixbufDevice *) device->device_data; - - c_device->xmargin = xmargin; - c_device->ymargin = ymargin; -} |