Merge branch 'wip/alttab'
[mikachu/openbox.git] / render / render.c
index 2cfb70c..49485c8 100644 (file)
@@ -1,5 +1,22 @@
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
+/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
+
+   render.c for the Openbox window manager
+   Copyright (c) 2006        Mikael Magnusson
+   Copyright (c) 2003-2007   Dana Jansens
+   Copyright (c) 2003        Derek Foreman
+
+   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.
+
+   See the COPYING file for a copy of the GNU General Public License.
+*/
 
 #include "render.h"
 #include "gradient.h"
@@ -10,6 +27,9 @@
 #include "theme.h"
 
 #include <glib.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/Xft/Xft.h>
 
 #ifdef HAVE_STDLIB_H
 #  include <stdlib.h>
 static void pixel_data_to_pixmap(RrAppearance *l,
                                  gint x, gint y, gint w, gint h);
 
-void RrPaint(RrAppearance *a, Window win, gint w, gint h)
+Pixmap RrPaintPixmap(RrAppearance *a, gint w, gint h)
 {
-    int i, transferred = 0, sw;
-    RrPixel32 *source, *dest;
-    Pixmap oldp;
+    gint i, transferred = 0, force_transfer = 0;
+    Pixmap oldp = None;
     RrRect tarea; /* area in which to draw textures */
     gboolean resized;
 
-    if (w <= 0 || h <= 0) return;
+    if (w <= 0 || h <= 0) return None;
+
+    if (a->surface.parentx < 0 || a->surface.parenty < 0) {
+        /* ob_debug("Invalid parent co-ordinates\n"); */
+        return None;
+    }
+
+    if (a->surface.grad == RR_SURFACE_PARENTREL &&
+        (a->surface.parentx >= a->surface.parent->w ||
+         a->surface.parenty >= a->surface.parent->h))
+    {
+        return None;
+    }
 
     resized = (a->w != w || a->h != h);
 
@@ -45,28 +76,18 @@ void RrPaint(RrAppearance *a, Window win, gint w, gint h)
                                RrVisual(a->inst), RrColormap(a->inst));
     g_assert(a->xftdraw != NULL);
 
-    g_free(a->surface.pixel_data);
-    a->surface.pixel_data = g_new(RrPixel32, w * h);
-
-    if (a->surface.grad == RR_SURFACE_PARENTREL) {
-        g_assert (a->surface.parent);
-        g_assert (a->surface.parent->w);
+    if (resized) {
+        g_free(a->surface.pixel_data);
+        a->surface.pixel_data = g_new(RrPixel32, w * h);
+    }
 
-        sw = a->surface.parent->w;
-        source = (a->surface.parent->surface.pixel_data +
-                  a->surface.parentx + sw * a->surface.parenty);
-        dest = a->surface.pixel_data;
-        for (i = 0; i < h; i++, source += sw, dest += w) {
-            memcpy(dest, source, w * sizeof(RrPixel32));
-        }
-    } else
-        RrRender(a, w, h);
+    RrRender(a, w, h);
 
     {
         gint l, t, r, b;
         RrMargins(a, &l, &t, &r, &b);
-        RECT_SET(tarea, l, t, w - l - r, h - t - b); 
-    }       
+        RECT_SET(tarea, l, t, w - l - r, h - t - b);
+    }
 
     for (i = 0; i < a->textures; i++) {
         switch (a->texture[i].type) {
@@ -75,11 +96,12 @@ void RrPaint(RrAppearance *a, Window win, gint w, gint h)
         case RR_TEXTURE_TEXT:
             if (!transferred) {
                 transferred = 1;
-                if (a->surface.grad != RR_SURFACE_SOLID)
+                if ((a->surface.grad != RR_SURFACE_SOLID)
+                    || (a->surface.interlaced))
                     pixel_data_to_pixmap(a, 0, 0, w, h);
             }
             if (a->xftdraw == NULL) {
-                a->xftdraw = XftDrawCreate(RrDisplay(a->inst), a->pixmap, 
+                a->xftdraw = XftDrawCreate(RrDisplay(a->inst), a->pixmap,
                                            RrVisual(a->inst),
                                            RrColormap(a->inst));
             }
@@ -88,7 +110,8 @@ void RrPaint(RrAppearance *a, Window win, gint w, gint h)
         case RR_TEXTURE_LINE_ART:
             if (!transferred) {
                 transferred = 1;
-                if (a->surface.grad != RR_SURFACE_SOLID)
+                if ((a->surface.grad != RR_SURFACE_SOLID)
+                    || (a->surface.interlaced))
                     pixel_data_to_pixmap(a, 0, 0, w, h);
             }
             XDrawLine(RrDisplay(a->inst), a->pixmap,
@@ -101,27 +124,53 @@ void RrPaint(RrAppearance *a, Window win, gint w, gint h)
         case RR_TEXTURE_MASK:
             if (!transferred) {
                 transferred = 1;
-                if (a->surface.grad != RR_SURFACE_SOLID)
+                if ((a->surface.grad != RR_SURFACE_SOLID)
+                    || (a->surface.interlaced))
                     pixel_data_to_pixmap(a, 0, 0, w, h);
             }
             RrPixmapMaskDraw(a->pixmap, &a->texture[i].data.mask, &tarea);
             break;
         case RR_TEXTURE_RGBA:
             g_assert(!transferred);
-            RrImageDraw(a->surface.pixel_data,
-                        &a->texture[i].data.rgba, &tarea);
+            {
+                RrRect narea = tarea;
+                RrTextureRGBA *rgb = &a->texture[i].data.rgba;
+                if (rgb->twidth)
+                    narea.width = MIN(tarea.width, rgb->twidth);
+                if (rgb->theight)
+                    narea.height = MIN(tarea.height, rgb->theight);
+                narea.x += rgb->tx;
+                narea.y += rgb->ty;
+                RrImageDraw(a->surface.pixel_data,
+                            &a->texture[i].data.rgba,
+                            a->w, a->h,
+                            &narea);
+            }
+            force_transfer = 1;
         break;
         }
     }
 
     if (!transferred) {
         transferred = 1;
-        if (a->surface.grad != RR_SURFACE_SOLID)
+        if ((a->surface.grad != RR_SURFACE_SOLID) || (a->surface.interlaced) ||
+            force_transfer)
+        {
             pixel_data_to_pixmap(a, 0, 0, w, h);
+        }
     }
 
+    return oldp;
+}
+
+void RrPaint(RrAppearance *a, Window win, gint w, gint h)
+{
+    Pixmap oldp;
+
+    oldp = RrPaintPixmap(a, w, h);
     XSetWindowBackgroundPixmap(RrDisplay(a->inst), win, a->pixmap);
     XClearWindow(RrDisplay(a->inst), win);
+    /* free this after changing the visible pixmap */
     if (oldp) XFreePixmap(RrDisplay(a->inst), oldp);
 }
 
@@ -132,11 +181,27 @@ RrAppearance *RrAppearanceNew(const RrInstance *inst, gint numtex)
   out = g_new0(RrAppearance, 1);
   out->inst = inst;
   out->textures = numtex;
+  out->surface.bevel_light_adjust = 128;
+  out->surface.bevel_dark_adjust = 64;
   if (numtex) out->texture = g_new0(RrTexture, numtex);
 
   return out;
 }
 
+void RrAppearanceRemoveTextures(RrAppearance *a)
+{
+    g_free(a->texture);
+    a->textures = 0;
+}
+
+void RrAppearanceAddTextures(RrAppearance *a, gint numtex)
+{
+    g_assert(a->textures == 0);
+
+    a->textures = numtex;
+    if (numtex) a->texture = g_new0(RrTexture, numtex);
+}
+
 RrAppearance *RrAppearanceCopy(RrAppearance *orig)
 {
     RrSurface *spo, *spc;
@@ -153,7 +218,7 @@ RrAppearance *RrAppearanceCopy(RrAppearance *orig)
     if (spo->primary != NULL)
         spc->primary = RrColorNew(copy->inst,
                                   spo->primary->r,
-                                  spo->primary->g, 
+                                  spo->primary->g,
                                   spo->primary->b);
     else spc->primary = NULL;
 
@@ -192,7 +257,23 @@ RrAppearance *RrAppearanceCopy(RrAppearance *orig)
                                       spo->bevel_light->b);
     else spc->bevel_light = NULL;
 
+    if (spo->split_primary != NULL)
+        spc->split_primary = RrColorNew(copy->inst,
+                                        spo->split_primary->r,
+                                        spo->split_primary->g,
+                                        spo->split_primary->b);
+    else spc->split_primary = NULL;
+
+    if (spo->split_secondary != NULL)
+        spc->split_secondary = RrColorNew(copy->inst,
+                                        spo->split_secondary->r,
+                                        spo->split_secondary->g,
+                                        spo->split_secondary->b);
+    else spc->split_secondary = NULL;
+
     spc->interlaced = spo->interlaced;
+    spc->bevel_light_adjust = spo->bevel_light_adjust;
+    spc->bevel_dark_adjust = spo->bevel_dark_adjust;
     spc->border = spo->border;
     spc->parent = NULL;
     spc->parentx = spc->parenty = 0;
@@ -203,7 +284,6 @@ RrAppearance *RrAppearanceCopy(RrAppearance *orig)
                              orig->textures * sizeof(RrTexture));
     for (i = 0; i < copy->textures; ++i)
         if (copy->texture[i].type == RR_TEXTURE_RGBA) {
-            g_free(copy->texture[i].data.rgba.cache);
             copy->texture[i].data.rgba.cache = NULL;
         }
     copy->pixmap = None;
@@ -234,8 +314,10 @@ void RrAppearanceFree(RrAppearance *a)
         RrColorFree(p->interlace_color);
         RrColorFree(p->bevel_dark);
         RrColorFree(p->bevel_light);
+        RrColorFree(p->split_primary);
+        RrColorFree(p->split_secondary);
         g_free(p->pixel_data);
-
+        p->pixel_data = NULL;
         g_free(a);
     }
 }
@@ -258,7 +340,7 @@ static void pixel_data_to_pixmap(RrAppearance *l,
    as reduce_depth just sets im->data = data and returns
 */
     scratch = g_new(RrPixel32, im->width * im->height);
-    im->data = (char*) scratch;
+    im->data = (gchar*) scratch;
     RrReduceDepth(l->inst, in, im);
     XPutImage(RrDisplay(l->inst), out,
               DefaultGC(RrDisplay(l->inst), RrScreen(l->inst)),
@@ -288,48 +370,112 @@ void RrMargins (RrAppearance *a, gint *l, gint *t, gint *r, gint *b)
     }
 }
 
-void RrMinsize(RrAppearance *a, gint *w, gint *h)
+void RrMinSize(RrAppearance *a, gint *w, gint *h)
+{
+    *w = RrMinWidth(a);
+    *h = RrMinHeight(a);
+}
+
+gint RrMinWidth(RrAppearance *a)
 {
     gint i;
-    gint m;
+    RrSize *m;
     gint l, t, r, b;
-    *w = *h = 0;
+    gint w = 0;
 
     for (i = 0; i < a->textures; ++i) {
         switch (a->texture[i].type) {
         case RR_TEXTURE_NONE:
             break;
         case RR_TEXTURE_MASK:
-            *w = MAX(*w, a->texture[i].data.mask.mask->width);
-            *h = MAX(*h, a->texture[i].data.mask.mask->height);
+            w = MAX(w, a->texture[i].data.mask.mask->width);
             break;
         case RR_TEXTURE_TEXT:
             m = RrFontMeasureString(a->texture[i].data.text.font,
-                                    a->texture[i].data.text.string);
-            *w = MAX(*w, m);
-            m = RrFontHeight(a->texture[i].data.text.font);
-            *h += MAX(*h, m);
+                                    a->texture[i].data.text.string,
+                                    a->texture[i].data.text.shadow_offset_x,
+                                    a->texture[i].data.text.shadow_offset_y,
+                                    a->texture[i].data.text.flow,
+                                    a->texture[i].data.text.maxwidth);
+            w = MAX(w, m->width);
+            g_free(m);
             break;
         case RR_TEXTURE_RGBA:
-            *w += MAX(*w, a->texture[i].data.rgba.width);
-            *h += MAX(*h, a->texture[i].data.rgba.height);
+            w += MAX(w, a->texture[i].data.rgba.width);
             break;
         case RR_TEXTURE_LINE_ART:
-            *w += MAX(*w, MAX(a->texture[i].data.lineart.x1,
-                              a->texture[i].data.lineart.x2));
-            *h += MAX(*h, MAX(a->texture[i].data.lineart.y1,
-                              a->texture[i].data.lineart.y2));
+            w += MAX(w, MAX(a->texture[i].data.lineart.x1,
+                            a->texture[i].data.lineart.x2));
             break;
         }
     }
 
     RrMargins(a, &l, &t, &r, &b);
 
-    *w += l + r;
-    *h += t + b;
+    w += l + r;
 
-    if (*w < 1) *w = 1;
-    if (*h < 1) *h = 1;
+    if (w < 1) w = 1;
+    return w;
+}
+
+gint RrMinHeight(RrAppearance *a)
+{
+    gint i;
+    gint l, t, r, b;
+    RrSize *m;
+    gint h = 0;
+
+    for (i = 0; i < a->textures; ++i) {
+        switch (a->texture[i].type) {
+        case RR_TEXTURE_NONE:
+            break;
+        case RR_TEXTURE_MASK:
+            h = MAX(h, a->texture[i].data.mask.mask->height);
+            break;
+        case RR_TEXTURE_TEXT:
+            if (a->texture[i].data.text.flow) {
+                g_assert(a->texture[i].data.text.string != NULL);
+
+                m = RrFontMeasureString
+                    (a->texture[i].data.text.font,
+                     a->texture[i].data.text.string,
+                     a->texture[i].data.text.shadow_offset_x,
+                     a->texture[i].data.text.shadow_offset_y,
+                     a->texture[i].data.text.flow,
+                     a->texture[i].data.text.maxwidth);
+                h += MAX(h, m->height);
+                g_free(m);
+            }
+            else
+                h += MAX(h,
+                         RrFontHeight
+                         (a->texture[i].data.text.font,
+                          a->texture[i].data.text.shadow_offset_y));
+            break;
+        case RR_TEXTURE_RGBA:
+            h += MAX(h, a->texture[i].data.rgba.height);
+            break;
+        case RR_TEXTURE_LINE_ART:
+            h += MAX(h, MAX(a->texture[i].data.lineart.y1,
+                            a->texture[i].data.lineart.y2));
+            break;
+        }
+    }
+
+    RrMargins(a, &l, &t, &r, &b);
+
+    h += t + b;
+
+    if (h < 1) h = 1;
+    return h;
+}
+
+static void reverse_bits(gchar *c, gint n)
+{
+    gint i;
+    for (i = 0; i < n; i++, c++)
+        *c = (((*c * 0x0802UL & 0x22110UL) |
+               (*c * 0x8020UL & 0x88440UL)) * 0x10101UL) >> 16;
 }
 
 gboolean RrPixmapToRGBA(const RrInstance *inst,
@@ -341,9 +487,10 @@ gboolean RrPixmapToRGBA(const RrInstance *inst,
     guint pw, ph, mw, mh, xb, xd, i, x, y, di;
     XImage *xi, *xm = NULL;
 
-    if (!XGetGeometry(RrDisplay(inst),
-                      pmap, &xr, &xx, &xy, &pw, &ph, &xb, &xd))
+    if (!XGetGeometry(RrDisplay(inst), pmap,
+                      &xr, &xx, &xy, &pw, &ph, &xb, &xd))
         return FALSE;
+
     if (mask) {
         if (!XGetGeometry(RrDisplay(inst), mask,
                           &xr, &xx, &xy, &mw, &mh, &xb, &xd))
@@ -360,10 +507,17 @@ gboolean RrPixmapToRGBA(const RrInstance *inst,
     if (mask) {
         xm = XGetImage(RrDisplay(inst), mask,
                        0, 0, mw, mh, 0xffffffff, ZPixmap);
-        if (!xm)
+        if (!xm) {
+            XDestroyImage(xi);
             return FALSE;
+        }
+        if ((xm->bits_per_pixel == 1) && (xm->bitmap_bit_order != LSBFirst))
+            reverse_bits(xm->data, xm->bytes_per_line * xm->height);
     }
 
+    if ((xi->bits_per_pixel == 1) && (xi->bitmap_bit_order != LSBFirst))
+        reverse_bits(xi->data, xi->bytes_per_line * xi->height);
+
     *data = g_new(RrPixel32, pw * ph);
     RrIncreaseDepth(inst, *data, xi);
 
@@ -382,5 +536,9 @@ gboolean RrPixmapToRGBA(const RrInstance *inst,
     *w = pw;
     *h = ph;
 
+    XDestroyImage(xi);
+    if (mask)
+        XDestroyImage(xm);
+
     return TRUE;
 }