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fix the coordinate system

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This commit is contained in:
Sebastian Ramacher 2012-02-07 21:45:32 +01:00
parent 52775364f7
commit 6045e46069
3 changed files with 16 additions and 14 deletions
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4
document.h
View file

@ -77,7 +77,9 @@ zathura_image_buffer_t* zathura_image_buffer_create(unsigned int width, unsigned
void zathura_image_buffer_free(zathura_image_buffer_t*);
/**
* Rectangle structure
* Rectangle structure.
* The coordinate system has its origin in the left upper corner. The x axes
* goes to the right, the y access goes down.
*/
typedef struct zathura_rectangle_s
{

6
page_widget.c
View file

@ -292,7 +292,7 @@ zathura_page_widget_expose(GtkWidget* widget, GdkEventExpose* event)
/* draw text */
cairo_set_source_rgba(cairo, 0, 0, 0, 1);
cairo_set_font_size(cairo, 10);
cairo_move_to(cairo, rectangle.x1 + 1, rectangle.y1 - 1);
cairo_move_to(cairo, rectangle.x1 + 1, rectangle.y2 - 1);
char* link_number = g_strdup_printf("%i", priv->link_offset + ++link_counter);
cairo_show_text(cairo, link_number);
g_free(link_number);
@ -384,9 +384,9 @@ redraw_rect(ZathuraPage* widget, zathura_rectangle_t* rectangle)
/* cause the rect to be drawn */
GdkRectangle grect;
grect.x = rectangle->x1;
grect.y = rectangle->y2;
grect.y = rectangle->y1;
grect.width = rectangle->x2 - rectangle->x1;
grect.height = rectangle->y1 - rectangle->y2;
grect.height = rectangle->y2 - rectangle->y1;
gdk_window_invalidate_rect(GTK_WIDGET(widget)->window, &grect, TRUE);
}

20
utils.c
View file

@ -200,28 +200,28 @@ recalc_rectangle(zathura_page_t* page, zathura_rectangle_t rectangle)
switch (page->document->rotate) {
case 90:
tmp.x1 = rectangle.y2 * page->document->scale;
tmp.x2 = rectangle.y1 * page->document->scale;
tmp.x1 = (page->height - rectangle.y2) * page->document->scale;
tmp.x2 = (page->height - rectangle.y1) * page->document->scale;
tmp.y1 = rectangle.x1 * page->document->scale;
tmp.y2 = rectangle.x2 * page->document->scale;
break;
case 180:
tmp.x1 = (page->width - rectangle.x2) * page->document->scale;
tmp.x2 = (page->width - rectangle.x1) * page->document->scale;
tmp.y1 = rectangle.y2 * page->document->scale;
tmp.y2 = rectangle.y1 * page->document->scale;
tmp.y1 = (page->height - rectangle.y2) * page->document->scale;
tmp.y2 = (page->height - rectangle.y1) * page->document->scale;
break;
case 270:
tmp.x1 = (page->height - rectangle.y1) * page->document->scale;
tmp.x2 = (page->height - rectangle.y2) * page->document->scale;
tmp.y1 = (page->width - rectangle.x2) * page->document->scale;
tmp.y2 = (page->width - rectangle.x1) * page->document->scale;
tmp.x1 = rectangle.y1 * page->document->scale;
tmp.x2 = rectangle.y2 * page->document->scale;
tmp.y1 = (page->width - rectangle.x2) * page->document->scale;
tmp.y2 = (page->width - rectangle.x1) * page->document->scale;
break;
default:
tmp.x1 = rectangle.x1 * page->document->scale;
tmp.x2 = rectangle.x2 * page->document->scale;
tmp.y1 = (page->height - rectangle.y1) * page->document->scale;
tmp.y2 = (page->height - rectangle.y2) * page->document->scale;
tmp.y1 = rectangle.y1 * page->document->scale;
tmp.y2 = rectangle.y2 * page->document->scale;
}
return tmp;