Aegisub/aegisub/src/visual_tool_scale.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_scale.cpp
/// @brief X/Y scaling visual typesetting tool
/// @ingroup visual_ts
#include "config.h"
#ifndef AGI_PRE
#include <math.h>
#endif
#include "ass_dialogue.h"
#include "ass_file.h"
#include "subs_grid.h"
#include "utils.h"
#include "video_context.h"
#include "video_display.h"
#include "visual_tool_scale.h"
VisualToolScale::VisualToolScale(VideoDisplay *parent, VideoState const& video, wxToolBar *)
: VisualTool<VisualDraggableFeature>(parent, video)
, curScaleX(0.f)
, origScaleX(0.f)
, curScaleY(0.f)
, origScaleY(0.f)
, startX(0)
, startY(0)
{
DoRefresh();
}
void VisualToolScale::Draw() {
if (!curDiag) return;
int len = 160;
int dx = MID(len/2+10,posx,video.w-len/2-30);
int dy = MID(len/2+10,posy,video.h-len/2-30);
SetLineColour(colour[0]);
SetFillColour(colour[1],0.3f);
// Transform grid
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glTranslatef(dx,dy,0.f);
float matrix[16] = { 2500, 0, 0, 0, 0, 2500, 0, 0, 0, 0, 1, 1, 0, 0, 2500, 2500 };
glMultMatrixf(matrix);
glScalef(1.f,1.f,8.f);
if (ry != 0.f) glRotatef(ry,0.f,-1.f,0.f);
if (rx != 0.f) glRotatef(rx,-1.f,0.f,0.f);
if (rz != 0.f) glRotatef(rz,0.f,0.f,-1.f);
// Scale parameters
int lenx = int(1.6 * curScaleX);
int leny = int(1.6 * curScaleY);
int drawX = len/2 + 10;
int drawY = len/2 + 10;
// Draw length markers
SetLineColour(colour[3],1.f,2);
DrawLine(-lenx/2,drawY+10,lenx/2,drawY+10);
DrawLine(drawX+10,-leny/2,drawX+10,leny/2);
SetLineColour(colour[0],1.f,1);
SetFillColour(colour[1],0.3f);
DrawCircle(lenx/2,drawY+10,4);
DrawCircle(drawX+10,-leny/2,4);
// Draw horizontal scale
SetLineColour(colour[0],1.f,1);
DrawRectangle(-len/2,drawY,len/2+1,drawY+5);
SetLineColour(colour[0],1.f,2);
DrawLine(-len/2+1,drawY+5,-len/2+1,drawY+15);
DrawLine(len/2,drawY+5,len/2,drawY+15);
// Draw vertical scale
SetLineColour(colour[0],1.f,1);
DrawRectangle(drawX,-len/2,drawX+5,len/2+1);
SetLineColour(colour[0],1.f,2);
DrawLine(drawX+5,-len/2+1,drawX+15,-len/2+1);
DrawLine(drawX+5,len/2,drawX+15,len/2);
glPopMatrix();
}
bool VisualToolScale::InitializeHold() {
startX = video.x;
startY = video.y;
origScaleX = curScaleX;
origScaleY = curScaleY;
curDiag->StripTag(L"\\fscx");
curDiag->StripTag(L"\\fscy");
return true;
}
void VisualToolScale::UpdateHold() {
using std::max;
// Deltas
int deltaX = video.x - startX;
int deltaY = startY - video.y;
if (shiftDown) {
if (abs(deltaX) >= abs(deltaY)) deltaY = 0;
else deltaX = 0;
}
// Calculate
curScaleX = max(deltaX*1.25f + origScaleX, 0.f);
curScaleY = max(deltaY*1.25f + origScaleY, 0.f);
// Oh Snap
if (ctrlDown) {
curScaleX = floorf(curScaleX/25.f+.5f)*25.f;
curScaleY = floorf(curScaleY/25.f+.5f)*25.f;
}
}
void VisualToolScale::CommitHold() {
Selection sel = grid->GetSelectedSet();
for (Selection::const_iterator cur = sel.begin(); cur != sel.end(); ++cur) {
SetOverride(*cur, L"\\fscx",wxString::Format(L"(%0.3g)",curScaleX));
SetOverride(*cur, L"\\fscy",wxString::Format(L"(%0.3g)",curScaleY));
}
}
void VisualToolScale::DoRefresh() {
if (!curDiag) return;
GetLineScale(curDiag, curScaleX, curScaleY);
GetLinePosition(curDiag, posx, posy);
GetLineRotation(curDiag, rx, ry, rz);
}