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TemplateCanvas.cpp
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/**
* GeoDa TM, Copyright (C) 2011-2015 by Luc Anselin - all rights reserved
*
* This file is part of GeoDa.
*
* GeoDa is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GeoDa is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <limits>
#include <math.h>
#include <map>
#include <stdlib.h>
#include <wx/wx.h>
#include <wx/image.h>
#include <wx/xrc/xmlres.h>
#include <wx/clipbrd.h>
#include <wx/splitter.h>
#include <wx/overlay.h>
#include <wx/sizer.h>
#include <wx/timer.h>
#include <wx/menu.h>
#include <wx/dcbuffer.h>
#include <wx/graphics.h>
#include <wx/dcgraph.h>
#include <boost/foreach.hpp>
#include <boost/array.hpp>
#include <boost/geometry/geometry.hpp>
#include <boost/geometry/geometries/point_xy.hpp>
#include <boost/geometry/geometries/adapted/c_array.hpp>
//#include <boost/geometry/index/rtree.hpp>
#include "DialogTools/SaveToTableDlg.h"
#include "Explore/CatClassifManager.h"
#include "GdaShape.h"
#include "ShpFile.h"
#include "GeoDa.h"
#include "Project.h"
#include "GdaConst.h"
#include "GenUtils.h"
#include "GenGeomAlgs.h"
#include "TemplateCanvas.h"
#include "TemplateFrame.h"
#include "GdaConst.h"
#include "logger.h"
using namespace std;
////////////////////////////////////////////////////////////////////////////////
//
//
////////////////////////////////////////////////////////////////////////////////
BOOST_GEOMETRY_REGISTER_C_ARRAY_CS(boost::geometry::cs::cartesian)
IMPLEMENT_CLASS(TemplateCanvas, wxScrolledWindow)
BEGIN_EVENT_TABLE(TemplateCanvas, wxScrolledWindow)
EVT_SIZE(TemplateCanvas::OnSize)
EVT_IDLE(TemplateCanvas::OnIdle)
EVT_PAINT(TemplateCanvas::OnPaint)
EVT_ERASE_BACKGROUND(TemplateCanvas::OnEraseBackground)
EVT_MOUSE_EVENTS(TemplateCanvas::OnMouseEvent)
EVT_MOUSE_CAPTURE_LOST(TemplateCanvas::OnMouseCaptureLostEvent)
EVT_KEY_DOWN(TemplateCanvas::OnKeyEvent)
EVT_KEY_UP(TemplateCanvas::OnKeyEvent)
EVT_SCROLLWIN(TemplateCanvas::OnScrollChanged)
EVT_TIMER(-1, TemplateCanvas::OnHighlightTimerEvent)
END_EVENT_TABLE()
TemplateCanvas::TemplateCanvas(wxWindow* parent,
TemplateFrame* template_frame_,
Project* project_s,
HLStateInt* hl_state_int_,
const wxPoint& pos,
const wxSize& size,
bool fixed_aspect_ratio_mode_s,
bool fit_to_window_mode_s,
bool enable_high_dpi_support_)
: wxScrolledWindow(parent, wxID_ANY, pos, size,
wxNO_FULL_REPAINT_ON_RESIZE | wxCLIP_CHILDREN),
mousemode(select), selectstate(start), brushtype(rectangle), is_brushing(false),
scrollbarmode(none), remember_shiftdown(false), project(project_s),
highlight_state(hl_state_int_), template_frame(template_frame_),
selectable_outline_visible(true), user_canvas_background_color(false),
selectable_outline_color(GdaConst::selectable_outline_color),
selectable_fill_color(GdaConst::selectable_fill_color),
highlight_color(GdaConst::highlight_color),
canvas_background_color(GdaConst::canvas_background_color),
selectable_shps_type(mixed), use_category_brushes(false),
draw_sel_shps_by_z_val(false),
isResize(false),
layer0_bm(0), layer1_bm(0), layer2_bm(0), faded_layer_bm(0),
layer0_valid(false), layer1_valid(false), layer2_valid(false),
total_hover_obs(0), max_hover_obs(11), hover_obs(11),
is_pan_zoom(false), prev_scroll_pos_x(0), prev_scroll_pos_y(0),
useScientificNotation(false),
is_showing_brush(false),
axis_display_precision(2), axis_display_fixed_point(false),
display_precision(3), display_precision_fixed_point(false),
category_disp_precision(3), category_disp_fixed_point(false),
enable_high_dpi_support(enable_high_dpi_support_),
scale_factor(1.0),
point_radius(GdaConst::my_point_click_radius),
MASK_R(183), MASK_G(184), MASK_B(185)
{
highlight_timer = new wxTimer(this);
if (enable_high_dpi_support) {
scale_factor = GetContentScaleFactor();
}
// default is one time slice
cat_data.CreateEmptyCategories(1, highlight_state->GetHighlightSize());
// will set the correct cursor for current mode
SetMouseMode(mousemode);
SetBackgroundStyle(wxBG_STYLE_CUSTOM); // default style
}
/**
The destructor. Note that all destructors in C++ should be declared
"virtual". Also note that super-class destructors are called automatically,
and it is a mistake to call them explicitly (unlike for consturctors or
other virtual methods). All of the GdaShape objects in
#selectable_shps are deleted in this destructor.
*/
TemplateCanvas::~TemplateCanvas()
{
BOOST_FOREACH( GdaShape* shp, background_shps ) delete shp;
BOOST_FOREACH( GdaShape* shp, selectable_shps ) delete shp;
BOOST_FOREACH( GdaShape* shp, foreground_shps ) delete shp;
if (HasCapture()) {
ReleaseMouse();
}
deleteLayerBms();
}
void TemplateCanvas::OnHighlightTimerEvent(wxTimerEvent &event)
{
highlight_state->SetEventType(HLStateInt::delta);
highlight_state->notifyObservers(this);
highlight_timer->Stop();
}
// We will handle drawing our background in a paint event
// handler. So, do nothing in this handler.
void TemplateCanvas::OnEraseBackground(wxEraseEvent& event)
{
}
void TemplateCanvas::SetScientificNotation(bool flag)
{
useScientificNotation = flag;
}
void TemplateCanvas::SetCategoryDisplayPrecision(int prec, bool fixed_point)
{
category_disp_precision = prec;
category_disp_fixed_point = fixed_point;
}
void TemplateCanvas::deleteLayerBms()
{
if (layer0_bm) delete layer0_bm; layer0_bm = 0;
if (layer1_bm) delete layer1_bm; layer1_bm = 0;
if (layer2_bm) delete layer2_bm; layer2_bm = 0;
if (faded_layer_bm) delete faded_layer_bm; faded_layer_bm = 0;
layer0_valid = false;
layer1_valid = false;
layer2_valid = false;
}
void TemplateCanvas::resizeLayerBms(int width, int height)
{
deleteLayerBms();
int vs_w, vs_h;
GetClientSize(&vs_w, &vs_h);
if (width > 0) vs_w = width;
if (height >0 ) vs_h = height;
if (enable_high_dpi_support) {
layer0_bm = new wxBitmap;
layer1_bm = new wxBitmap;
layer2_bm = new wxBitmap;
layer0_bm->CreateScaled(vs_w, vs_h, 32, scale_factor);
layer1_bm->CreateScaled(vs_w, vs_h, 32, scale_factor);
layer2_bm->CreateScaled(vs_w, vs_h, 32, scale_factor);
} else {
layer0_bm = new wxBitmap(vs_w, vs_h, 32);
layer1_bm = new wxBitmap(vs_w, vs_h, 32);
layer2_bm = new wxBitmap(vs_w, vs_h, 32);
}
layer0_valid = false;
layer1_valid = false;
layer2_valid = false;
}
// redraw everything
void TemplateCanvas::invalidateBms()
{
layer0_valid = false;
layer1_valid = false;
layer2_valid = false;
ResetFadedLayer();
}
bool TemplateCanvas::GetFixedAspectRatioMode()
{
return last_scale_trans.fixed_aspect_ratio;
}
void TemplateCanvas::SetFixedAspectRatioMode(bool mode)
{
last_scale_trans.SetFixedAspectRatio(mode);
ResizeSelectableShps();
}
void TemplateCanvas::SetAxisDisplayPrecision(int n, bool fixed_point)
{
axis_display_precision = n;
axis_display_fixed_point = fixed_point;
PopulateCanvas();
}
void TemplateCanvas::SetDisplayPrecision(int prec, bool fixed_point)
{
display_precision = prec;
display_precision_fixed_point = fixed_point;
//invalidateBms();
PopulateCanvas();
}
bool TemplateCanvas::GetFitToWindowMode()
{
return fit_to_window_mode;
}
void TemplateCanvas::SetFitToWindowMode(bool mode)
{
fit_to_window_mode = mode;
scrollbarmode = none;
if (fit_to_window_mode) {
is_pan_zoom = false;
prev_scroll_pos_x = 0;
prev_scroll_pos_y = 0;
ResetShapes();
}
}
void TemplateCanvas::OnKeyEvent(wxKeyEvent& event)
{
if (mousemode == zoom) {
if (event.ShiftDown()) {
SetCursor(GdaConst::zoomOutCursor);
} else {
SetCursor(GdaConst::zoomInCursor);
}
}
event.Skip();
}
void TemplateCanvas::OnScrollChanged(wxScrollWinEvent& event)
{
//layer0_valid = false;
int orient = event.GetOrientation();
int pos_e = event.GetPosition(); // this was often returning 0 on Windows
int pos_w = GetScrollPos(orient);
// There must be a bug in wxWidgets 3.0 for Windows because often
// pos_e == 0 when it shouldn't be. When pos_e == 0, we use the
// value from pos_w instead. However, pos_w is often the same as
// the previous value when it shouldn't be. This at least prevents
// the window from jumping around. Actually dragging the scroll
// bars by the thumb slider works.
int pos = (pos_e == 0) ? pos_w : pos_e;
if (pos!=0 && is_pan_zoom) {
int v_offset = 0;
int h_offset = 0;
if (orient == wxHORIZONTAL) {
h_offset = pos - prev_scroll_pos_x ;
prev_scroll_pos_x = pos;
} else if (orient == wxVERTICAL) {
v_offset = -pos + prev_scroll_pos_y ;
prev_scroll_pos_y = pos;
}
last_scale_trans.ScrollView(h_offset, v_offset);
ResizeSelectableShps();
}
event.Skip();
}
wxString TemplateCanvas::GetCanvasStateString()
{
return "";
}
void TemplateCanvas::ResizeSelectableShps(int virtual_scrn_w,
int virtual_scrn_h)
{
int vs_w = virtual_scrn_w;
int vs_h = virtual_scrn_h;
if (vs_w <= 0 && vs_h <=0 ) {
GetClientSize(&vs_w, &vs_h);
}
// view: extent, margins, width, height
last_scale_trans.SetView(vs_w, vs_h);
if (last_scale_trans.IsValid()) {
BOOST_FOREACH( GdaShape* ms, background_shps ) {
if (ms) ms->applyScaleTrans(last_scale_trans);
}
BOOST_FOREACH( GdaShape* ms, selectable_shps ) {
if (ms) ms->applyScaleTrans(last_scale_trans);
}
BOOST_FOREACH( GdaShape* ms, foreground_shps ) {
if (ms) ms->applyScaleTrans(last_scale_trans);
}
}
layer0_valid = false;
layer1_valid = false;
layer2_valid = false;
ResetFadedLayer();
}
void TemplateCanvas::ResetBrushing()
{
is_showing_brush = false;
sel1.x = 0;
sel1.y = 0;
sel2.x = 0;
sel2.y = 0;
}
void TemplateCanvas::ResetShapes()
{
last_scale_trans.Reset();
is_pan_zoom = false;
ResetFadedLayer();
ResetBrushing();
SetMouseMode(select);
ResizeSelectableShps();
}
void TemplateCanvas::ResetFadedLayer()
{
if (faded_layer_bm) {
delete faded_layer_bm;
faded_layer_bm = NULL;
}
}
void TemplateCanvas::ZoomShapes(bool is_zoomin)
{
if (sel2.x == 0 && sel2.y==0)
return;
if (sel1.x == sel2.x)
sel2.x = sel1.x + 2;
if (sel1.y == sel2.y)
sel2.y = sel1.y + 2;
last_scale_trans.Zoom(is_zoomin, sel1, sel2);
is_pan_zoom = true;
is_showing_brush = false;
ResetBrushing();
ResizeSelectableShps();
}
void TemplateCanvas::PanShapes()
{
if (sel2.x == 0 && sel2.y==0)
return;
last_scale_trans.PanView(sel1, sel2);
is_pan_zoom = true;
is_showing_brush = false;
ResetBrushing();
ResizeSelectableShps();
}
void TemplateCanvas::SetMouseMode(MouseMode mode)
{
mousemode = mode;
if (mousemode == select) {
SetCursor(*wxSTANDARD_CURSOR);
} else if (mousemode == pan) {
SetCursor(wxCursor(wxCURSOR_HAND));
} else if (mousemode == zoom) {
if (remember_shiftdown)
SetCursor(GdaConst::zoomOutCursor);
else
SetCursor(GdaConst::zoomInCursor);
} else if (mousemode == zoomout) {
SetCursor(GdaConst::zoomOutCursor);
} else { // default
SetCursor(*wxSTANDARD_CURSOR);
}
}
std::vector<int> TemplateCanvas::CreateSelShpsFromProj(vector<GdaShape*>& selectable_shps, Project* project)
{
using namespace Shapefile;
std::vector<int> empty_shps_ids;
if (selectable_shps.size() > 0) {
return empty_shps_ids;
}
int num_recs = project->GetNumRecords();
selectable_shps.resize(num_recs);
vector<MainRecord>& records = project->main_data.records;
Header& hdr = project->main_data.header;
if (hdr.shape_type == Shapefile::POINT_TYP) {
PointContents* pc = 0;
for (int i=0; i<num_recs; i++) {
pc = (PointContents*) records[i].contents_p;
if (pc->shape_type == 0) {
empty_shps_ids.push_back(i);
selectable_shps[i] = new GdaPoint();
} else {
selectable_shps[i] = new GdaPoint(wxRealPoint(pc->x,pc->y));
}
}
} else if (hdr.shape_type == Shapefile::POLYGON) {
PolygonContents* pc = 0;
for (int i=0; i<num_recs; i++) {
pc = (PolygonContents*) records[i].contents_p;
if (pc->shape_type == 0) {
empty_shps_ids.push_back(i);
selectable_shps[i] = new GdaPolygon();
} else {
selectable_shps[i] = new GdaPolygon(pc);
}
}
} else if (hdr.shape_type == Shapefile::POLY_LINE) {
PolyLineContents* pc = 0;
//wxPen pen(GdaConst::selectable_fill_color, 1, wxSOLID);
for (int i=0; i<num_recs; i++) {
pc = (PolyLineContents*) records[i].contents_p;
if (pc->shape_type == 0) {
empty_shps_ids.push_back(i);
selectable_shps[i] = new GdaPolyLine();
} else {
selectable_shps[i] = new GdaPolyLine(pc);
}
}
}
return empty_shps_ids;
}
wxRealPoint TemplateCanvas::MousePntToObsPnt(const wxPoint &pt)
{
wxPoint new_pt = pt;
wxRealPoint data_pt = last_scale_trans.View2Data(new_pt);
return data_pt;
}
void TemplateCanvas::SetSelectableOutlineVisible(bool visible)
{
selectable_outline_visible = visible;
layer0_valid = false;
UpdateSelectableOutlineColors();
}
bool TemplateCanvas::IsSelectableOutlineVisible()
{
return selectable_outline_visible;
}
void TemplateCanvas::SetBackgroundColorVisible(bool visible)
{
user_canvas_background_color = visible;
layer0_valid = false;
ReDraw();
}
bool TemplateCanvas::IsUserBackgroundColorVisible()
{
return user_canvas_background_color;
}
void TemplateCanvas::SetSelectableOutlineColor(wxColour color)
{
selectable_outline_color = color;
layer0_valid = false;
layer1_valid = false;
layer2_valid = false;
UpdateSelectableOutlineColors();
}
void TemplateCanvas::SetSelectableFillColor(wxColour color)
{
selectable_fill_color = color;
UpdateSelectableOutlineColors();
layer0_valid = false;
layer1_valid = false;
layer2_valid = false;
ReDraw();
}
void TemplateCanvas::SetHighlightColor(wxColour color)
{
highlight_color = color;
layer1_valid = false;
ReDraw();
}
void TemplateCanvas::SetCanvasBackgroundColor(wxColour color)
{
canvas_background_color = color;
layer0_valid = false;
ReDraw();
}
void TemplateCanvas::UpdateSelectableOutlineColors()
{
}
/**
Impelmentation of HighlightStateObservable interface. This
is called by HighlightState when it notifies all observers
that its state has changed. */
void TemplateCanvas::update(HLStateInt* o)
{
if (layer2_bm) {
ResetBrushing();
if (draw_sel_shps_by_z_val) {
// force a full redraw
layer0_valid = false;
DrawLayers();
} else {
HLStateInt::EventType type = o->GetEventType();
if (type == HLStateInt::transparency) {
ResetFadedLayer();
}
// re-paint highlight layer (layer1_bm)
layer1_valid = false;
DrawLayers();
UpdateStatusBar();
}
}
}
void TemplateCanvas::RenderToDC(wxDC &dc, int w, int h)
{
#ifdef __WIN32__
GdaScaleTrans old_scale_trans = last_scale_trans;
int screen_w = GetClientSize().GetWidth();
int screen_h = GetClientSize().GetHeight();
double scale = (double)w / screen_w;
last_scale_trans.SetView(w, h);
last_scale_trans.top_margin *= scale;
last_scale_trans.left_margin *= scale;
last_scale_trans.right_margin *= scale;
last_scale_trans.bottom_margin *= scale;
resizeLayerBms(w, h);
ResizeSelectableShps(w, h);
DrawLayers();
dc.DrawBitmap(*layer2_bm, 0, 0);
last_scale_trans.top_margin /= scale;
last_scale_trans.left_margin /= scale;
last_scale_trans.right_margin /= scale;
last_scale_trans.bottom_margin /= scale;
last_scale_trans.SetView(screen_w, screen_h);
ReDraw();
#else
int screen_w = GetClientSize().GetWidth();
int screen_h = GetClientSize().GetHeight();
double old_scale = scale_factor;
scale_factor = (double)w / screen_w;
resizeLayerBms(w, h);
DrawLayers();
dc.DrawBitmap(*layer2_bm, 0, 0);
scale_factor = old_scale;
ReDraw();
#endif
}
void TemplateCanvas::RenderToSVG(wxDC &dc, int w, int h)
{
ResizeSelectableShps(w, h);
BOOST_FOREACH( GdaShape* shp, background_shps ) {
shp->paintSelf(dc);
}
vector<bool>& hs = highlight_state->GetHighlight();
if (use_category_brushes) {
helper_DrawSelectableShapes_dc(dc, hs, false, false);
} else {
for (int i=0, iend=selectable_shps.size(); i<iend; i++) {
if (_IsShpValid(i)) {
selectable_shps[i]->paintSelf(dc);
}
}
}
BOOST_FOREACH( GdaShape* shp, foreground_shps ) {
shp->paintSelf(dc);
}
ResizeSelectableShps();
}
void TemplateCanvas::DrawLayers()
{
if (layer2_valid && layer1_valid && layer0_valid)
return;
if (!layer0_valid) {
DrawLayer0();
}
if (!layer1_valid) {
DrawLayer1();
}
if (!layer2_valid) {
DrawLayer2();
}
//wxWakeUpIdle();
Refresh(false);
}
// Draw all solid background, background decorations and unhighlighted
// shapes.
void TemplateCanvas::DrawLayer0()
{
if (layer0_bm == NULL)
return;
wxMemoryDC dc(*layer0_bm);
dc.SetBackground(wxBrush(canvas_background_color));
dc.Clear();
BOOST_FOREACH( GdaShape* shp, background_shps ) {
shp->paintSelf(dc);
}
DrawSelectableShapes(dc);
dc.SelectObject(wxNullBitmap);
layer0_valid = true;
layer1_valid = false;
}
// draw highlighted shapes.
void TemplateCanvas::DrawLayer1()
{
if (layer1_bm == NULL)
return;
wxMemoryDC dc(*layer1_bm);
dc.SetBackground(wxBrush(canvas_background_color));
dc.Clear();
// faded the background half transparency
std::vector<bool>& hl = highlight_state->GetHighlight();
bool has_hl = false;
for (size_t i=0; i<hl.size(); ++i) {
if (hl[i]) {
has_hl = true;
break;
}
}
if (has_hl) {
if (faded_layer_bm == NULL) {
wxImage image = layer0_bm->ConvertToImage();
if (!image.HasAlpha()) {
image.InitAlpha();
}
unsigned char *alpha=image.GetAlpha();
memset(alpha, GdaConst::plot_transparency_unhighlighted,
image.GetWidth()*image.GetHeight());
faded_layer_bm = new wxBitmap(image);
}
if (enable_high_dpi_support) {
dc.SetUserScale(1/scale_factor, 1/scale_factor);
dc.DrawBitmap(*faded_layer_bm,0,0);
dc.SetUserScale(1.0, 1.0);
} else {
dc.DrawBitmap(*faded_layer_bm,0,0);
}
} else {
dc.DrawBitmap(*layer0_bm, 0, 0);
}
DrawHighlightedShapes(dc);
dc.SelectObject(wxNullBitmap);
layer1_valid = true;
layer2_valid = false;
}
void TemplateCanvas::DrawLayer2()
{
if (layer2_bm == NULL)
return;
wxMemoryDC dc(*layer2_bm);
dc.Clear();
dc.DrawBitmap(*layer1_bm, 0, 0);
BOOST_FOREACH( GdaShape* shp, foreground_shps ) {
shp->paintSelf(dc);
}
dc.SelectObject(wxNullBitmap);
layer2_valid = true;
}
void TemplateCanvas::OnPaint(wxPaintEvent& event)
{
if (layer2_bm) {
wxSize sz = GetClientSize();
wxMemoryDC dc(*layer2_bm);
wxPaintDC paint_dc(this);
paint_dc.Blit(0, 0, sz.x, sz.y, &dc, 0, 0);
// Draw optional control objects if needed
PaintControls(paint_dc);
helper_PaintSelectionOutline(paint_dc);
}
event.Skip();
}
void TemplateCanvas::ReDraw()
{
isResize = true;
}
void TemplateCanvas::OnIdle(wxIdleEvent& event)
{
if (isResize) {
isResize = false;
int cs_w=0, cs_h=0;
GetClientSize(&cs_w, &cs_h);
last_scale_trans.SetView(cs_w, cs_h);
resizeLayerBms(cs_w, cs_h);
ResizeSelectableShps(cs_w, cs_h);
event.RequestMore(); // render continuously, not only once on idle
}
if (!layer2_valid || !layer1_valid || !layer0_valid) {
DrawLayers();
event.RequestMore(); // render continuously, not only once on idle
}
}
void TemplateCanvas::OnSize(wxSizeEvent& event)
{
ResetBrushing();
isResize = true;
event.Skip();
}
void TemplateCanvas::SetPointRadius(double r)
{
point_radius = r;
// also update seletable_shps[] with new point_radius
GdaPoint* p;
for (int i=0, iend=selectable_shps.size(); i<iend; i++) {
if (_IsShpValid(i)) {
p = (GdaPoint*) selectable_shps[i];
if (p->isNull()) {
continue;
}
p->SetRadius(point_radius);
}
}
}
bool TemplateCanvas::_IsShpValid(int idx)
{
if (selectable_shps[idx] == NULL || selectable_shps[idx]->isNull()) {
return false;
}
if (!selectable_shps_undefs.empty() && selectable_shps_undefs[idx] == true) {
return false;
}
return true;
}
// draw unhighlighted selectable shapes
// using wxDC only since windows platform has poor wxGC support
void TemplateCanvas::DrawSelectableShapes(wxMemoryDC &dc)
{
if (selectable_shps.size() == 0)
return;
if (use_category_brushes) {
DrawSelectableShapes_dc(dc);
} else {
for (int i=0, iend=selectable_shps.size(); i<iend; i++) {
if (_IsShpValid(i)) {
selectable_shps[i]->paintSelf(dc);
}
}
}
}
// draw highlighted selectable shapes
void TemplateCanvas::DrawHighlightedShapes(wxMemoryDC &dc)
{
if (selectable_shps.size() == 0)
return;
if (use_category_brushes) {
bool highlight_only = true;
DrawSelectableShapes_dc(dc, highlight_only);
} else {
vector<bool>& hs = GetSelBitVec();
for (int i=0, iend=selectable_shps.size(); i<iend; i++) {
if (hs[i] && _IsShpValid(i)) {
selectable_shps[i]->paintSelf(dc);
}
}
}
}
void TemplateCanvas::DrawSelectableShapes_dc(wxMemoryDC &_dc, bool hl_only,
bool revert)
{
vector<bool>& hs = highlight_state->GetHighlight();
#ifdef __WXOSX__
wxGCDC dc(_dc);
helper_DrawSelectableShapes_dc(dc, hs, hl_only, revert);
#else
helper_DrawSelectableShapes_dc(_dc, hs, hl_only, revert);
#endif
}
void TemplateCanvas::helper_DrawSelectableShapes_dc(wxDC &dc, vector<bool>& hs,
bool hl_only, bool revert,
bool crosshatch,
bool is_print,
const wxColour& fixed_pen_color)
{
int cc_ts = cat_data.curr_canvas_tm_step;
int num_cats = cat_data.GetNumCategories(cc_ts);
int w;
int h;
dc.GetSize(&w, &h);
if (selectable_shps_type == points) {
int bnd = w*h;
vector<bool> dirty(bnd, false);
dc.SetBrush(*wxTRANSPARENT_BRUSH);
wxDouble r = point_radius;
if (w < 150 || h < 150) {
r *= 0.66;
}
if (selectable_shps.size() > 100 && (w < 80 || h < 80)) {
r = 0.2;
}
GdaPoint* p;
for (int cat=0; cat<num_cats; cat++) {
if (hl_only && crosshatch ){
dc.SetBrush(wxBrush(highlight_color));
} else {
if (selectable_outline_visible) {
wxPen pen = cat_data.GetCategoryPen(cc_ts, cat);
dc.SetPen(pen);
} else {
dc.SetPen(*wxTRANSPARENT_PEN);
}
if (fixed_pen_color != *wxWHITE) {
dc.SetPen(wxPen(fixed_pen_color));
}
dc.SetBrush(cat_data.GetCategoryBrush(cc_ts, cat));
}
vector<int>& ids = cat_data.GetIdsRef(cc_ts, cat);
for (int i=0, iend=ids.size(); i<iend; i++) {
if (!_IsShpValid(ids[i]) || (hl_only && hs[ids[i]] == revert)) {
continue;
}
p = (GdaPoint*) selectable_shps[ids[i]];
if (p->isNull()) {
continue;
}
int bnd_idx = p->center.x + p->center.y*w;
if (is_print) {
dc.DrawCircle(p->center.x, p->center.y, r);
} else if (bnd_idx >= 0 && bnd_idx < bnd && !dirty[bnd_idx]) {
dc.DrawCircle(p->center.x, p->center.y, r);
dirty[bnd_idx] = true;
}
}
}
} else if (selectable_shps_type == polygons) {
GdaPolygon* p;
for (int cat=0; cat<num_cats; cat++) {
if (hl_only && crosshatch) {
dc.SetPen(wxPen(highlight_color));
dc.SetBrush(wxBrush(highlight_color, wxBRUSHSTYLE_CROSSDIAG_HATCH));
} else {
if (selectable_outline_visible) {
wxPen pen = cat_data.GetCategoryPen(cc_ts, cat);
dc.SetPen(pen);
} else {
dc.SetPen(cat_data.GetCategoryColor(cc_ts, cat));
}
if (fixed_pen_color != *wxWHITE) {
dc.SetPen(wxPen(fixed_pen_color));
}
dc.SetBrush(cat_data.GetCategoryBrush(cc_ts, cat));
}
vector<int>& ids = cat_data.GetIdsRef(cc_ts, cat);
for (int i=0, iend=ids.size(); i<iend; i++) {
if (!_IsShpValid(ids[i]) || (hl_only && hs[ids[i]] == revert))
continue;
p = (GdaPolygon*) selectable_shps[ids[i]];
if (p->isNull())
continue;
if (p->all_points_same) {
dc.DrawPoint(p->center.x, p->center.y);
} else {
if (p->n_count > 1) {
dc.DrawPolyPolygon(p->n_count, p->count, p->points);
} else {
dc.DrawPolygon(p->n, p->points);
}
}
}
}
} else if (selectable_shps_type == circles) {
// Only Bubble Chart uses circles currently, but Bubble Chart uses
// DrawSelectableShapesByZVal. This will be useful for Cartogram map
GdaCircle* c;
for (int cat=0; cat<num_cats; cat++) {
if (hl_only && crosshatch) {
dc.SetPen(wxPen(highlight_color));
dc.SetBrush(wxBrush(highlight_color, wxBRUSHSTYLE_CROSSDIAG_HATCH));
} else {
if (selectable_outline_visible) {
wxPen pen = cat_data.GetCategoryPen(cc_ts, cat);
dc.SetPen(pen);
} else {
dc.SetPen(*wxTRANSPARENT_PEN);