зеркало из https://github.com/mozilla/gecko-dev.git
279 строки
8.7 KiB
C++
279 строки
8.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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// CToolbarPatternBevelView.cp
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#include <LArrayIterator.h>
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#include "CToolbarPatternBevelView.h"
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#include "CToolbarButton.h"
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#include "StRegionHandle.h"
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#include <stddef.h>
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// Bug #79175
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// Change the update command status so that the "Show/Hide Component Bar" works
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CToolbarPatternBevelView::CToolbarPatternBevelView(LStream* inStream)
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: CPatternBevelView(inStream)
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{
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LCommander::SetUpdateCommandStatus(true);
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}
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// Bug #79175
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// Change the update command status so that the "Show/Hide Component Bar" works
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CToolbarPatternBevelView::~CToolbarPatternBevelView()
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{
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LCommander::SetUpdateCommandStatus(true);
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}
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void CToolbarPatternBevelView::HandleModeChange( Int8 inNewMode, SDimension16& outSizeChange )
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{
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CalcArrangement(false, inNewMode, outSizeChange);
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}
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void CToolbarPatternBevelView::RotateArrangement( SDimension16& outSizeChange )
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{
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CalcArrangement(true, Int8(), outSizeChange);
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}
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void CToolbarPatternBevelView::CalcArrangement( Boolean inRotateArrangement, Int8 inNewMode, SDimension16& outSizeChange)
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/*
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Note: either rotates the arrangement _or else_ changes the mode, but not both.
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...treats |CToolbarButtons| sub-views as though they are layed out in a grid
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whose cell-size is the maximum height and width of any of them. In a mode change,
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their sizes change, the grid must be recalculated, and the buttons moved
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appropriately.
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*/
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{
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size_t number_of_buttons = 0;
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SDimension16 old_cell_size={ 0, 0 }, new_cell_size={ 0, 0 };
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SDimension16 grid_origin;
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/*
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Iterate over the |CToolbarButtons| within me, _twice_...
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*/
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// ...once to calculate the old and new grid cell-size, and change the mode of each button;
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LPane* current_subview_ptr = 0;
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for ( LArrayIterator iter(mSubPanes); iter.Next(¤t_subview_ptr); )
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if ( CToolbarButton* button = dynamic_cast<CToolbarButton*>(current_subview_ptr) )
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{
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++number_of_buttons;
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SDimension16 button_size;
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// Use the pre-ChangeMode size of this button to calculate |old_cell_size|
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button->GetFrameSize(button_size);
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/*
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The origin of the grid is the remainder when dividing the maximum sized
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cells offset by its size (independently for x and y).
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*/
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Boolean recalc_origin_x = button_size.width > old_cell_size.width;
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Boolean recalc_origin_y = button_size.height > old_cell_size.height;
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if ( recalc_origin_x || recalc_origin_y )
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{
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Rect button_rect;
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button->CalcLocalFrameRect(button_rect);
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if ( recalc_origin_x )
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{
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old_cell_size.width = button_size.width;
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grid_origin.width = button_rect.left - (button_size.width * (button_rect.left / button_size.width));
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}
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else // recalc_origin_y
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{
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old_cell_size.height = button_size.height;
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grid_origin.height = button_rect.top - (button_size.height * (button_rect.top / button_size.height));
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}
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}
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if ( !inRotateArrangement )
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{
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SDimension16 dummy;
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button->ChangeMode(inNewMode, dummy);
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// ...and the post-ChangeMode size for |new_cell_size|
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button->GetFrameSize(button_size);
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if ( new_cell_size.width < button_size.width )
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new_cell_size.width = button_size.width;
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if ( new_cell_size.height < button_size.height )
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new_cell_size.height = button_size.height;
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}
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}
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if ( inRotateArrangement )
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new_cell_size = old_cell_size;
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Int16 number_of_columns = 0;
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Int16 number_of_rows = 0;
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// ...and again (if buttons were found in the first pass) to actually move them.
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if ( number_of_buttons > 0 )
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{
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for ( LArrayIterator iter(mSubPanes); (number_of_buttons > 0) && iter.Next(¤t_subview_ptr); )
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if ( CToolbarButton* button = dynamic_cast<CToolbarButton*>(current_subview_ptr) )
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{
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--number_of_buttons;
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// Determine which cell this button occupies. It hasn't been moved yet, so use |old_cell_size|, and the buttons top-left.
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Rect button_rect;
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button->CalcLocalFrameRect(button_rect);
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Int16 column = (button_rect.left - grid_origin.width) / old_cell_size.width;
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Int16 row = (button_rect.top - grid_origin.height) / old_cell_size.height;
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if ( inRotateArrangement )
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{
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Int16 temp = column;
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column = row;
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row = temp;
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}
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if ( number_of_columns <= column )
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number_of_columns = column + 1;
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if ( number_of_rows <= row )
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number_of_rows = row + 1;
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// Calculate the padding needed to center this button within a (new-size) cell.
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SDimension16 button_size;
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button->GetFrameSize(button_size);
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Int16 horizontal_padding = (new_cell_size.width - button_size.width) / 2;
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Int16 vertical_padding = (new_cell_size.height - button_size.height) / 2;
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// Calculate the buttons new position within its superview (i.e., within |me|)
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Int32 x = grid_origin.width + (column * new_cell_size.width) + horizontal_padding;
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Int32 y = grid_origin.height + (row * new_cell_size.height) + vertical_padding;
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button->PlaceInSuperFrameAt(x, y, true); // ...only moves if it has to
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}
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}
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Int16 old_number_of_columns = inRotateArrangement ? number_of_rows : number_of_columns;
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Int16 old_number_of_rows = inRotateArrangement ? number_of_columns : number_of_rows;
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outSizeChange.width = (number_of_columns * new_cell_size.width) - (old_number_of_columns * old_cell_size.width);
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outSizeChange.height = (number_of_rows * new_cell_size.height) - (old_number_of_rows * old_cell_size.height);
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}
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#pragma mark -
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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// <09> FocusDraw
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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// Set up coordinates system and clipping region
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//
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// Panes rely on their superview to focus them. When a Pane requests
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// focus for drawing, we set the clipping region to the revealed
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// portion of that Pane's Frame minus the Frames of all sibling Panes
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// that are in front of that Pane.
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Boolean
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CToolbarPatternBevelView::FocusDraw(
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LPane *inSubPane)
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{
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Boolean revealed = true;
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if (inSubPane == nil) { // Focus this view
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revealed = LView::FocusDraw();
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} else { // Focus a SubPane
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if (EstablishPort()) { // Set current Mac Port
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sInFocusView = nil; // Saved focus is now invalid
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// Set up local coordinate system
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::SetOrigin(mPortOrigin.h, mPortOrigin.v);
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// Build clipping region
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// Start with the intersection of the
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// revealed rect of this View with the
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// Frame of the SubPane
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Rect subRect;
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inSubPane->CalcPortFrameRect(subRect);
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if (!::SectRect(&subRect, &mRevealedRect, &subRect)) {
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// No intersection, so subpane is
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// not revealed. Set empty clip.
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::ClipRect(&subRect);
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return false;
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}
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// SubPane is revealed. Make region
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// from the intersection.
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StRegionHandle clipR;
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::RectRgn(clipR, &subRect);
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// Determine first sibling which is in front of this SubPane.
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ArrayIndexT subIndex = 0;
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LPane* thePane = nil;
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{
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LArrayIterator iterator(mSubPanes, LArrayIterator::from_Start);
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while (iterator.Next(&thePane))
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{
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subIndex++;
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if (thePane == inSubPane)
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break;
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}
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}
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// Subtract Frames of all sibling Panes (which are visible)
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// that are in front of this SubPane (i.e., come after the
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// SubPane in this View's list of SubPanes.
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StRegionHandle siblingR;
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LArrayIterator iterator(mSubPanes, subIndex);
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Rect siblingFrame;
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while (iterator.Next(&thePane))
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{
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if (thePane->IsVisible() && thePane->CalcPortFrameRect(siblingFrame))
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{
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// Subtract sibling's Frame from
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// the clipping region
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::RectRgn(siblingR, &siblingFrame);
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::DiffRgn(clipR, siblingR, clipR);
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}
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}
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// Convert Clip region from Port to
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// Local coords and set it
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::OffsetRgn(clipR, mPortOrigin.h, mPortOrigin.v);
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::SetClip(clipR);
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revealed = !::EmptyRgn(clipR);
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} else {
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SignalPStr_("\pFocus View with no GrafPort");
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revealed = false;
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}
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}
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return revealed;
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}
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