Aegisub/aegisub/src/visual_tool_rotatez.cpp

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// Copyright (c) 2007, Rodrigo Braz Monteiro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of the Aegisub Group nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Aegisub Project http://www.aegisub.org/
//
// $Id$
/// @file visual_tool_rotatez.cpp
/// @brief 2D rotation in Z axis visual typesetting tool
/// @ingroup visual_ts
///
///////////
// Headers
#include "config.h"
#include "ass_dialogue.h"
#include "ass_file.h"
#include "subs_edit_box.h"
#include "subs_grid.h"
#include "utils.h"
#include "video_display.h"
#include "visual_tool_rotatez.h"
/// @brief Constructor
/// @param _parent
///
VisualToolRotateZ::VisualToolRotateZ(VideoDisplay *_parent)
: VisualTool(_parent)
{
_parent->ShowCursor(false);
DoRefresh();
}
/// @brief Update
///
void VisualToolRotateZ::Update() {
// Render parent
GetParent()->Render();
}
/// @brief Draw
/// @return
///
void VisualToolRotateZ::Draw() {
// Get line to draw
AssDialogue *line = GetActiveDialogueLine();
if (!line) return;
// Draw pivot
DrawAllFeatures();
// Radius
int dx=0,dy=0;
if (dragging) GetLinePosition(line,dx,dy);
else GetLinePosition(line,dx,dy,orgx,orgy);
int radius = (int) sqrt(double((dx-orgx)*(dx-orgx)+(dy-orgy)*(dy-orgy)));
int oRadius = radius;
if (radius < 50) radius = 50;
// Pivot coordinates
int odx = dx;
int ody = dy;
dx = orgx;
dy = orgy;
// Rotation
float rz;
GetLineRotation(line,rx,ry,rz);
if (line == curDiag) rz = curAngle;
// Get scale
float scalX = 100.0f;
float scalY = 100.0f;
GetLineScale(line,scalX,scalY);
// Get deltas
int deltax = int(cos(rz*3.1415926536/180.0)*radius);
int deltay = int(-sin(rz*3.1415926536/180.0)*radius);
// Set colours
SetLineColour(colour[0]);
SetFillColour(colour[1],0.3f);
// Set up the projection
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glTranslatef(dx,dy,-1.0f);
float matrix[16] = { 2500, 0, 0, 0, 0, 2500, 0, 0, 0, 0, 1, 1, 0, 0, 2500, 2500 };
glMultMatrixf(matrix);
glScalef(1.0f,1.0f,8.0f);
glRotatef(ry,0.0f,-1.0f,0.0f);
glRotatef(rx,-1.0f,0.0f,0.0f);
glScalef(scalX/100.0f,scalY/100.0f,1.0f);
// Draw the circle
DrawRing(0,0,radius+4,radius-4);
// Draw markers around circle
int markers = 6;
float markStart = -90.0f / markers;
float markEnd = markStart+(180.0f/markers);
for (int i=0;i<markers;i++) {
float angle = i*(360.0f/markers);
DrawRing(0,0,radius+30,radius+12,radius/radius,angle+markStart,angle+markEnd);
}
// Draw the baseline
SetLineColour(colour[3],1.0f,2);
DrawLine(deltax,deltay,-deltax,-deltay);
// Draw the connection line
if (orgx != odx && orgy != ody) {
double angle = atan2(double(dy-ody),double(odx-dx)) + rz*3.1415926536/180.0;
int fx = int(cos(angle)*oRadius);
int fy = -int(sin(angle)*oRadius);
DrawLine(0,0,fx,fy);
int mdx = int(cos(rz*3.1415926536/180.0)*20);
int mdy = int(-sin(rz*3.1415926536/180.0)*20);
DrawLine(fx-mdx,fy-mdy,fx+mdx,fy+mdy);
}
// Draw the rotation line
SetLineColour(colour[0],1.0f,1);
SetFillColour(colour[1],0.3f);
DrawCircle(deltax,deltay,4);
// Restore
glPopMatrix();
// Draw line to mouse
if (mouseX != -1 && !dragging && GetHighlightedFeature() == -1) {
SetLineColour(colour[0]);
DrawLine(dx,dy,mx,my);
}
}
/// @brief Start holding
///
void VisualToolRotateZ::InitializeHold() {
GetLinePosition(curDiag,odx,ody,orgx,orgy);
startAngle = atan2(double(orgy-mouseY*sh/h),double(mouseX*sw/w-orgx)) * 180.0 / 3.1415926535897932;
GetLineRotation(curDiag,rx,ry,origAngle);
curAngle = origAngle;
curDiag->StripTag(_T("\\frz"));
curDiag->StripTag(_T("\\fr"));
}
/// @brief Update hold
///
void VisualToolRotateZ::UpdateHold() {
// Find angle
float screenAngle = atan2(double(orgy-mouseY*sh/h),double(mouseX*sw/w-orgx)) * 180.0 / 3.1415926535897932;
curAngle = screenAngle - startAngle + origAngle;
while (curAngle < 0.0f) curAngle += 360.0f;
while (curAngle >= 360.0f) curAngle -= 360.0f;
// Snap
if (shiftDown) {
curAngle = (float)((int)((curAngle+15.0f)/30.0f))*30.0f;
if (curAngle == 360.0f) curAngle = 0.0f;
}
}
/// @brief Commit hold
///
void VisualToolRotateZ::CommitHold() {
SetOverride(_T("\\frz"),PrettyFloat(wxString::Format(_T("(%0.3f)"),curAngle)));
}
/// @brief Get \\org pivot
///
void VisualToolRotateZ::PopulateFeatureList() {
// Get line
curDiag = GetActiveDialogueLine();
GetLinePosition(curDiag,odx,ody,orgx,orgy);
// Set features
features.resize(1);
VisualDraggableFeature &feat = features.back();
feat.x = orgx;
feat.y = orgy;
feat.line = curDiag;
feat.type = DRAG_BIG_TRIANGLE;
}
/// @brief Update dragging of \\org
/// @param feature
///
void VisualToolRotateZ::UpdateDrag(VisualDraggableFeature &feature) {
orgx = feature.x;
orgy = feature.y;
}
/// @brief Commit dragging of \\org
/// @param feature
///
void VisualToolRotateZ::CommitDrag(VisualDraggableFeature &feature) {
SetOverride(_T("\\org"),wxString::Format(_T("(%i,%i)"),feature.x,feature.y));
}
/// @brief Refresh
///
void VisualToolRotateZ::DoRefresh() {
AssDialogue *line = GetActiveDialogueLine();
GetLinePosition(line,odx,ody,orgx,orgy);
GetLineRotation(line,rx,ry,curAngle);
}