1 // Copyright (c) 2011, Thomas Goyne <plorkyeran@aegisub.org>
2 //
3 // Permission to use, copy, modify, and distribute this software for any
4 // purpose with or without fee is hereby granted, provided that the above
5 // copyright notice and this permission notice appear in all copies.
6 //
7 // THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
8 // WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
9 // MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
10 // ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
11 // WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
12 // ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
13 // OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
14 //
15 // Aegisub Project http://www.aegisub.org/
16 
17 /// @file visual_tool_clip.cpp
18 /// @brief Rectangular clipping visual typesetting tool
19 /// @ingroup visual_ts
20 
21 #include "visual_tool_clip.h"
22 
23 #include "ass_dialogue.h"
24 #include "include/aegisub/context.h"
25 #include "selection_controller.h"
26 
27 #include <libaegisub/format.h>
28 
29 #include <wx/colour.h>
30 
VisualToolClip(VideoDisplay * parent,agi::Context * context)31 VisualToolClip::VisualToolClip(VideoDisplay *parent, agi::Context *context)
32 : VisualTool<ClipCorner>(parent, context)
33 , cur_1(0, 0)
34 , cur_2(video_res)
35 {
36 	ClipCorner *feats[4];
37 	for (auto& feat : feats) {
38 		feat = new ClipCorner;
39 		features.push_back(*feat);
40 	}
41 
42 	// Attach each feature to the two features it shares edges with
43 	// Top-left
44 	int i = 0;
45 	feats[i]->horiz = feats[1];
46 	feats[i]->vert = feats[2];
47 	i++;
48 
49 	// Top-right
50 	feats[i]->horiz = feats[0];
51 	feats[i]->vert = feats[3];
52 	i++;
53 
54 	// Bottom-left
55 	feats[i]->horiz = feats[3];
56 	feats[i]->vert = feats[0];
57 	i++;
58 
59 	// Bottom-right
60 	feats[i]->horiz = feats[2];
61 	feats[i]->vert = feats[1];
62 }
63 
Draw()64 void VisualToolClip::Draw() {
65 	if (!active_line) return;
66 
67 	DrawAllFeatures();
68 
69 	// Draw rectangle
70 	gl.SetLineColour(colour[3], 1.0f, 2);
71 	gl.SetFillColour(colour[3], 0.0f);
72 	gl.DrawRectangle(cur_1, cur_2);
73 
74 	// Draw outside area
75 	gl.SetLineColour(colour[3], 0.0f);
76 	gl.SetFillColour(*wxBLACK, 0.5f);
77 	if (inverse) {
78 		gl.DrawRectangle(cur_1, cur_2);
79 	}
80 	else {
81 		Vector2D v_min = video_pos;
82 		Vector2D v_max = video_pos + video_res;
83 		Vector2D c_min = cur_1.Min(cur_2);
84 		Vector2D c_max = cur_1.Max(cur_2);
85 		gl.DrawRectangle(v_min,                  Vector2D(v_max, c_min));
86 		gl.DrawRectangle(Vector2D(v_min, c_max), v_max);
87 		gl.DrawRectangle(Vector2D(v_min, c_min), Vector2D(c_min, c_max));
88 		gl.DrawRectangle(Vector2D(c_max, c_min), Vector2D(v_max, c_max));
89 	}
90 }
91 
InitializeHold()92 bool VisualToolClip::InitializeHold() {
93 	return true;
94 }
95 
UpdateHold()96 void VisualToolClip::UpdateHold() {
97 	// Limit to video area
98 	cur_1 = video_pos.Max((video_pos + video_res).Min(drag_start));
99 	cur_2 = video_pos.Max((video_pos + video_res).Min(mouse_pos));
100 
101 	SetFeaturePositions();
102 	CommitHold();
103 }
104 
CommitHold()105 void VisualToolClip::CommitHold() {
106 	std::string value = agi::format("(%s,%s)", ToScriptCoords(cur_1.Min(cur_2)).Str(), ToScriptCoords(cur_1.Max(cur_2)).Str());
107 
108 	for (auto line : c->selectionController->GetSelectedSet()) {
109 		// This check is technically not correct as it could be outside of an
110 		// override block... but that's rather unlikely
111 		bool has_iclip = line->Text.get().find("\\iclip") != std::string::npos;
112 		SetOverride(line, has_iclip ? "\\iclip" : "\\clip", value);
113 	}
114 }
115 
UpdateDrag(ClipCorner * feature)116 void VisualToolClip::UpdateDrag(ClipCorner *feature) {
117 	// Update features which share an edge with the dragged one
118 	feature->horiz->pos = Vector2D(feature->horiz->pos, feature->pos);
119 	feature->vert->pos = Vector2D(feature->pos, feature->vert->pos);
120 
121 	cur_1 = features.front().pos;
122 	cur_2 = features.back().pos;
123 
124 	CommitHold();
125 }
126 
SetFeaturePositions()127 void VisualToolClip::SetFeaturePositions() {
128 	auto it = features.begin();
129 	(it++)->pos = cur_1; // Top-left
130 	(it++)->pos = Vector2D(cur_2, cur_1); // Top-right
131 	(it++)->pos = Vector2D(cur_1, cur_2); // Bottom-left
132 	it->pos = cur_2; // Bottom-right
133 }
134 
DoRefresh()135 void VisualToolClip::DoRefresh() {
136 	if (active_line) {
137 		GetLineClip(active_line, cur_1, cur_2, inverse);
138 		cur_1 = FromScriptCoords(cur_1);
139 		cur_2 = FromScriptCoords(cur_2);
140 		SetFeaturePositions();
141 	}
142 }
143