desktop name: first step

[chaz/tint2] / src / util / area.c

diff --git a/src/util/area.c b/src/util/area.c
index 34a4d13211e60e8b918a2805417686f5d5fc3f5d..970776563ccbeecb91aa1c51519a6d058e2b841f 100644 (file)
--- a/src/util/area.c
+++ b/src/util/area.c
@@ -2,7 +2,7 @@
 *
 * Tint2 : area
 *
-* Copyright (C) 2008 thierry lorthiois (lorthiois@bbsoft.fr)
+* Copyright (C) 2008 thierry lorthiois (lorthiois@bbsoft.fr) from Omega distribution
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2
@@ -59,7 +59,6 @@
  *     - if 'size' changed then 'resize = 1' on the parent
  * 2) browse tree SIZE_BY_LAYOUT and POSITION
  *  - resize SIZE_BY_LAYOUT node : parent is resized before children
- *     - if 'size' changed then 'resize = 1' on childs with SIZE_BY_LAYOUT
  *  - calculate position (posx,posy) : parent is calculated before children
  *     - if 'position' changed then 'redraw = 1'
  * 3) browse tree REDRAW
@@ -97,9 +96,9 @@ void init_rendering(void *obj, int pos)
 void rendering(void *obj)
 {
        Panel *panel = (Panel*)obj;
-       
+
        size_by_content(&panel->area);
-       size_by_layout(&panel->area, 0, 0);
+       size_by_layout(&panel->area, 0, 1);
        
        refresh(&panel->area);
 }
@@ -116,15 +115,16 @@ void size_by_content (Area *a)
                size_by_content(l->data);
        
        // calculate area's size
+       a->on_changed = 0;
        if (a->resize && a->size_mode == SIZE_BY_CONTENT) {
                a->resize = 0;
 
                if (a->_resize) {
                        if (a->_resize(a)) {
-                               // 'size' changed => 'resize = 1' on the parent and redraw object
+                               // 'size' changed => 'resize = 1' on the parent
                                ((Area*)a->parent)->resize = 1;
+                               a->on_changed = 1;
                        }
-                       a->redraw = 1;
                }
        }
 }
@@ -142,12 +142,12 @@ void size_by_layout (Area *a, int pos, int level)
                a->resize = 0;
 
                if (a->_resize) {
-                       if (a->_resize(a)) {
-                               // if 'size' changed then 'resize = 1' on childs with SIZE_BY_LAYOUT
-                               for (l = a->list; l ; l = l->next) {
-                                       if (((Area*)l->data)->size_mode == SIZE_BY_LAYOUT)
-                                               ((Area*)l->data)->resize = 1;
-                               }
+                       a->_resize(a);
+                       // resize childs with SIZE_BY_LAYOUT
+                       for (l = a->list; l ; l = l->next) {
+                               Area *child = ((Area*)l->data);
+                               if (child->size_mode == SIZE_BY_LAYOUT && child->list)
+                                       child->resize = 1;
                        }
                }
        }
@@ -164,24 +164,34 @@ void size_by_layout (Area *a, int pos, int level)
                        if (pos != child->posx) {
                                // pos changed => redraw
                                child->posx = pos;
-                               child->redraw = 1;
+                               child->on_changed = 1;
                        }
                }
                else {
                        if (pos != child->posy) {
                                // pos changed => redraw
                                child->posy = pos;
-                               child->redraw = 1;
+                               child->on_changed = 1;
                        }
                }
-               //printf("level %d, object %d, pos %d\n", level, i, pos);
                
+               /*// position of each visible object
+               int k;
+               for (k=0 ; k < level ; k++) printf("  ");
+               printf("tree level %d, object %d, pos %d, %s\n", level, i, pos, (child->size_mode == SIZE_BY_LAYOUT) ? "SIZE_BY_LAYOUT" : "SIZE_BY_CONTENT");*/
                size_by_layout(child, pos, level+1);
                
                if (panel_horizontal)
                        pos += child->width + a->paddingx;
                else
                        pos += child->height + a->paddingx;
+       }       
+
+       if (a->on_changed) {
+               // pos/size changed
+               a->redraw = 1;
+               if (a->_on_change_layout)
+                       a->_on_change_layout (a);
        }
 }
 
@@ -195,10 +205,9 @@ void refresh (Area *a)
        if (a->redraw) {
                a->redraw = 0;
                // force redraw of child
-               GSList *l;
-               for (l = a->list ; l ; l = l->next)
-                       ((Area*)l->data)->redraw = 1;
-//                     set_redraw(l->data);
+               //GSList *l;
+               //for (l = a->list ; l ; l = l->next)
+                       //((Area*)l->data)->redraw = 1;
 
                //printf("draw area posx %d, width %d\n", a->posx, a->width);
                draw(a);
@@ -215,12 +224,11 @@ void refresh (Area *a)
 }
 
 
-int resize_by_layout(void *obj)
+int resize_by_layout(void *obj, int maximum_size)
 {
        Area *child, *a = (Area*)obj;
        int size, nb_by_content=0, nb_by_layout=0;
 
-       printf("resize_by_layout\n");
        if (panel_horizontal) {         
                // detect free size for SIZE_BY_LAYOUT's Area
                size = a->width - (2 * (a->paddingxlr + a->bg->border.width));
@@ -234,26 +242,32 @@ int resize_by_layout(void *obj)
                        if (child->on_screen && child->size_mode == SIZE_BY_LAYOUT)
                                nb_by_layout++;
                }
+               //printf("  resize_by_layout Deb %d, %d\n", nb_by_content, nb_by_layout);
                if (nb_by_content+nb_by_layout)
                        size -= ((nb_by_content+nb_by_layout-1) * a->paddingx);
-               //printf("resize_panel : size_panel %d, size_layout %d\n", panel->area.width, size);
 
-               int width=0, modulo=0;
+               int width=0, modulo=0, old_width;
                if (nb_by_layout) {
                        width = size / nb_by_layout;
                        modulo = size % nb_by_layout;
+                       if (width > maximum_size && maximum_size != 0) {
+                               width = maximum_size;
+                               modulo = 0;
+                       }
                }
 
                // resize SIZE_BY_LAYOUT objects
                for (l = a->list ; l ; l = l->next) {
                        child = (Area*)l->data;
                        if (child->on_screen && child->size_mode == SIZE_BY_LAYOUT) {
+                               old_width = child->width;
                                child->width = width;
-                               child->resize = 1;
                                if (modulo) {
                                        child->width++;
                                        modulo--;
                                }
+                               if (child->width != old_width)
+                                       child->on_changed = 1;
                        }
                }
        }
@@ -273,22 +287,28 @@ int resize_by_layout(void *obj)
                if (nb_by_content+nb_by_layout)
                        size -= ((nb_by_content+nb_by_layout-1) * a->paddingx);
 
-               int height=0, modulo=0;
+               int height=0, modulo=0, old_height;
                if (nb_by_layout) {
                        height = size / nb_by_layout;
                        modulo = size % nb_by_layout;
+                       if (height > maximum_size && maximum_size != 0) {
+                               height = maximum_size;
+                               modulo = 0;
+                       }
                }
 
                // resize SIZE_BY_LAYOUT objects
                for (l = a->list ; l ; l = l->next) {
                        child = (Area*)l->data;
                        if (child->on_screen && child->size_mode == SIZE_BY_LAYOUT) {
+                               old_height = child->height;
                                child->height = height;
-                               child->resize = 1;
                                if (modulo) {
                                        child->height++;
                                        modulo--;
                                }
+                               if (child->height != old_height)
+                                       child->on_changed = 1;
                        }
                }
        }