f0b7d0a2e2
In "show all" mode, the image is thought to be "infinite"; this commit improves the overall scrolling/zooming behavior in this mode according to this assumption. In cases where a specific image size is needed (e.g., for the scrollbar bounds, fit-image-in-window, etc.), the image's full bounding box is used; however, in cases where a center point is needed (e.g., for the zoomed-out scrollbar bounds, center-image-in-window), the canvas center, rather than the bounding-box center, is still used.
60 lines
3.3 KiB
C
60 lines
3.3 KiB
C
/* 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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* 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 <https://www.gnu.org/licenses/>.
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*/
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#ifndef __GIMP_DISPLAY_SHELL_SCROLL_H__
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#define __GIMP_DISPLAY_SHELL_SCROLL_H__
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void gimp_display_shell_scroll (GimpDisplayShell *shell,
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gint x_offset,
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gint y_offset);
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void gimp_display_shell_scroll_set_offset (GimpDisplayShell *shell,
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gint offset_x,
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gint offset_y);
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void gimp_display_shell_scroll_clamp_and_update (GimpDisplayShell *shell);
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void gimp_display_shell_scroll_unoverscrollify (GimpDisplayShell *shell,
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gint in_offset_x,
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gint in_offset_y,
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gint *out_offset_x,
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gint *out_offset_y);
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void gimp_display_shell_scroll_center_image_xy (GimpDisplayShell *shell,
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gdouble image_x,
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gdouble image_y);
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void gimp_display_shell_scroll_center_image (GimpDisplayShell *shell,
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gboolean horizontally,
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gboolean vertically);
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void gimp_display_shell_scroll_center_content (GimpDisplayShell *shell,
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gboolean horizontally,
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gboolean vertically);
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void gimp_display_shell_scroll_get_scaled_viewport (GimpDisplayShell *shell,
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gint *x,
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gint *y,
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gint *w,
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gint *h);
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void gimp_display_shell_scroll_get_viewport (GimpDisplayShell *shell,
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gdouble *x,
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gdouble *y,
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gdouble *w,
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gdouble *h);
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#endif /* __GIMP_DISPLAY_SHELL_SCROLL_H__ */
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