138 lines
3.9 KiB
Objective-C
138 lines
3.9 KiB
Objective-C
/*
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* Copyright 2011 Sven Weidauer <sven.weidauer@gmail.com>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf 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; version 2 of the License.
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*
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* NetSurf 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 <http://www.gnu.org/licenses/>.
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*/
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#import "TreeView.h"
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#import "desktop/tree.h"
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#import "desktop/plotters.h"
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#import "desktop/history_global_core.h"
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#import "cocoa/coordinates.h"
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@implementation TreeView
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static void tree_redraw_request( int x, int y, int w, int h, void *data );
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static void tree_resized( struct tree *tree, int w, int h, void *data );
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static void tree_scroll_visible( int y, int height, void *data );
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static void tree_get_window_dimensions( int *width, int *height, void *data );
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static const struct treeview_table cocoa_tree_callbacks = {
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.redraw_request = tree_redraw_request,
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.resized = tree_resized,
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.scroll_visible = tree_scroll_visible,
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.get_window_dimensions = tree_get_window_dimensions
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};
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- (id)initWithFrame:(NSRect)frame
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{
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if ((self = [super initWithFrame:frame]) == nil) return nil;
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treeHandle = tree_create( history_global_get_tree_flags(), &cocoa_tree_callbacks, self );
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if (NULL == treeHandle) {
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[self release];
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return nil;
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}
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history_global_initialise( treeHandle, "" );
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return self;
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}
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- (void) dealloc;
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{
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tree_delete( treeHandle );
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[super dealloc];
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}
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- (void)drawRect:(NSRect)dirtyRect
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{
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tree_set_redraw( treeHandle, true );
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tree_draw( treeHandle, 0, 0,
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cocoa_pt_to_px( NSMinX( dirtyRect ) ), cocoa_pt_to_px( NSMinY( dirtyRect ) ),
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cocoa_pt_to_px( NSWidth( dirtyRect ) ), cocoa_pt_to_px( NSHeight( dirtyRect ) ) );
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}
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- (BOOL) isFlipped;
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{
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return YES;
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}
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- (void) mouseDown: (NSEvent *)theEvent;
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{
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NSPoint point = [self convertPoint: [theEvent locationInWindow] fromView: nil];
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dragStart = point;
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tree_mouse_action( treeHandle, BROWSER_MOUSE_PRESS_1,
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cocoa_pt_to_px( point.x ), cocoa_pt_to_px( point.y ) );
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}
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- (void) mouseUp: (NSEvent *)theEvent;
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{
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NSPoint point = [self convertPoint: [theEvent locationInWindow] fromView: nil];
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if (isDragging) {
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tree_drag_end( treeHandle, BROWSER_MOUSE_DRAG_1,
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cocoa_pt_to_px( dragStart.x ), cocoa_pt_to_px( dragStart.y ),
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cocoa_pt_to_px( point.x ), cocoa_pt_to_px( point.y ) );
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isDragging = NO;
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} else {
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tree_mouse_action( treeHandle, BROWSER_MOUSE_CLICK_1,
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cocoa_pt_to_px( point.x ), cocoa_pt_to_px( point.y ) );
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}
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}
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#define squared(x) ((x)*(x))
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#define MinDragDistance (5.0)
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- (void) mouseDragged: (NSEvent *)theEvent;
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{
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NSPoint point = [self convertPoint: [theEvent locationInWindow] fromView: nil];
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if (!isDragging) {
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const CGFloat distance = squared( dragStart.x - point.x ) + squared( dragStart.y - point.y );
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if (distance >= squared( MinDragDistance)) isDragging = YES;
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}
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if (isDragging) {
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tree_mouse_action( treeHandle, BROWSER_MOUSE_DRAG_1,
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cocoa_pt_to_px( point.x ), cocoa_pt_to_px( point.y ) );
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}
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}
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static void tree_redraw_request( int x, int y, int w, int h, void *data )
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{
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[(TreeView *)data setNeedsDisplayInRect: cocoa_rect_wh( x, y, w, h )];
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}
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static void tree_resized( struct tree *tree, int w, int h, void *data )
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{
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[(TreeView *)data setMinimumSize: cocoa_size( w, h )];
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}
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static void tree_scroll_visible( int y, int height, void *data )
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{
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[(TreeView *)data scrollPoint: cocoa_point( 0, y )];
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}
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static void tree_get_window_dimensions( int *width, int *height, void *data )
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{
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NSSize size = [(TreeView *)data frame].size;
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*width = cocoa_pt_to_px( size.width );
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*height = cocoa_pt_to_px( size.height );
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}
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@end
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