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diff --git a/src/GUIListBox.cpp b/src/GUIListBox.cpp
index 808e4e9..cb8d35b 100644
--- a/src/GUIListBox.cpp
+++ b/src/GUIListBox.cpp
@@ -1,522 +1,528 @@
/*
* Copyright (C) 2011-2012 Me and My Shadow
*
* This file is part of Me and My Shadow.
*
* Me and My Shadow 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.
*
* Me and My Shadow 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 Me and My Shadow. If not, see <http://www.gnu.org/licenses/>.
*/
#include "GUIListBox.h"
using namespace std;
GUIListBox::GUIListBox(int left,int top,int width,int height,bool enabled,bool visible,int gravity):
-GUIObject(left,top,width,height,NULL,-1,enabled,visible,gravity),itemHeight(24),selectable(true),clickEvents(false){
+GUIObject(left,top,width,height,NULL,-1,enabled,visible,gravity),selectable(true),clickEvents(false){
//Set the state -1.
state=-1;
//Create the scrollbar and add it to the children.
scrollBar=new GUIScrollBar(width-16,0,16,height,1,0,0,0,1,1,true,true);
childControls.push_back(scrollBar);
}
GUIListBox::~GUIListBox(){
//Remove all items and cache.
clearItems();
//We need to delete every child we have.
for(unsigned int i=0;i<childControls.size();i++){
delete childControls[i];
}
//Deleted the childs now empty the childControls vector.
childControls.clear();
}
bool GUIListBox::handleEvents(int x,int y,bool enabled,bool visible,bool processed){
//Boolean if the event is processed.
bool b=processed;
//The GUIObject is only enabled when he and his parent are enabled.
enabled=enabled && this->enabled;
//The GUIObject is only enabled when he and his parent are enabled.
visible=visible && this->visible;
//Get the absolute position.
x+=left;
y+=top;
//Update the scrollbar.
if(scrollBar->visible)
b=b||scrollBar->handleEvents(x,y,enabled,visible,b);
//Set state negative.
state=-1;
//Check if the GUIListBox is visible, enabled and no event has been processed before.
if(enabled&&visible&&!b){
//The mouse location (x=i, y=j) and the mouse button (k).
int i,j;
SDL_GetMouseState(&i,&j);
//Convert the mouse location to a relative location.
i-=x;
j-=y;
//Check if the mouse is inside the GUIListBox.
if(i>=0&&i<width-4&&j>=0&&j<height-4){
//Calculate selected item.
- int idx=0;
- if(scrollBar->value==scrollBar->maxValue&&scrollBar->visible){
- int over=height-(itemHeight*(height/itemHeight));
- if(j>over)
- idx=((j-over)/itemHeight)+scrollBar->value;
- else
- idx=scrollBar->value-1;
- }else{
- idx=(j/itemHeight)+scrollBar->value;
+ int idx=-1;
+ int yPos=-firstItemY;
+ int i=scrollBar->value;
+ if(yPos!=0) i--;
+ for(;i<images.size();++i){
+ SDL_Surface** c=&images.at(i);
+ if(*c) yPos+=(*c)->h;
+ if(j<yPos){
+ idx=i;
+ break;
+ }
}
//If the entry isn't above the max we have an event.
if(idx>=0&&idx<(int)item.size()&&selectable){
state=idx;
//Check if the left mouse button is pressed.
if(event.type==SDL_MOUSEBUTTONDOWN && event.button.button==SDL_BUTTON_LEFT){
//Check if the slected item changed.
if(value!=idx){
value=idx;
//If event callback is configured then add an event to the queue.
if(eventCallback){
GUIEvent e={eventCallback,name,this,GUIEventChange};
GUIEventQueue.push_back(e);
}
}
//After possibly a change event, there will always be a click event.
if(eventCallback && clickEvents){
GUIEvent e={eventCallback,name,this,GUIEventClick};
GUIEventQueue.push_back(e);
}
}
}
//Check for mouse wheel scrolling.
if(event.type==SDL_MOUSEBUTTONDOWN && event.button.button==SDL_BUTTON_WHEELDOWN && scrollBar->enabled){
scrollBar->value++;
if(scrollBar->value>scrollBar->maxValue)
scrollBar->value=scrollBar->maxValue;
}else if(event.type==SDL_MOUSEBUTTONDOWN && event.button.button==SDL_BUTTON_WHEELUP && scrollBar->enabled){
scrollBar->value--;
if(scrollBar->value<0)
scrollBar->value=0;
}
}
}
//Process child controls event except for the scrollbar.
//That's why i starts at one.
for(unsigned int i=1;i<childControls.size();i++){
bool b1=childControls[i]->handleEvents(x,y,enabled,visible,b);
//The event is processed when either our or the childs is true (or both).
b=b||b1;
}
return b;
}
void GUIListBox::render(int x,int y,bool draw){
if(updateScrollbar){
//Calculate the height of the content.
int maxY=0;
for(unsigned int i=0;i<images.size();i++){
maxY+=images.at(i)->h;
}
//Check if we need to show the scrollbar for many entries.
if(maxY<height){
scrollBar->maxValue=0;
scrollBar->value=0;
scrollBar->visible=false;
}else{
scrollBar->visible=true;
scrollBar->maxValue=item.size();
int yy=0;
for(int i=images.size()-1;i>0;i--){
yy+=images.at(i)->h;
if(yy>height)
break;
else
scrollBar->maxValue--;
}
scrollBar->largeChange=item.size()/4;
}
updateScrollbar=false;
}
//Rectangle the size of the GUIObject, used to draw borders.
//SDL_Rect r; //Unused local variable :/
//There's no need drawing the GUIObject when it's invisible.
if(!visible||!draw)
return;
//Get the absolute x and y location.
x+=left;
y+=top;
//Draw the background box.
SDL_Rect r={x,y,width,height};
SDL_FillRect(screen,&r,0xFFFFFFFF);
+
+ firstItemY=0;
//Loop through the entries and draw them.
if(scrollBar->value==scrollBar->maxValue&&scrollBar->visible){
int lowNumber=height;
int currentItem=images.size()-1;
while(lowNumber>=0&¤tItem>=0){
lowNumber-=images.at(currentItem)->h;
if(lowNumber>0){
if(selectable){
//Check if the mouse is hovering on current entry. If so draw borders around it.
if(state==currentItem)
drawGUIBox(x,y+lowNumber-1,width,images.at(currentItem)->h+1,screen,0x00000000);
//Check if the current entry is selected. If so draw a gray background.
if(value==currentItem)
drawGUIBox(x,y+lowNumber-1,width,images.at(currentItem)->h+1,screen,0xDDDDDDFF);
}
applySurface(x,y+lowNumber,images.at(currentItem),screen,NULL);
}else{
if(selectable){
//Check if the mouse is hovering on current entry. If so draw borders around it.
if(state==currentItem)
drawGUIBox(x,y,width,images.at(currentItem)->h+lowNumber+1,screen,0x00000000);
//Check if the current entry is selected. If so draw a gray background.
if(value==currentItem)
drawGUIBox(x,y,width,images.at(currentItem)->h+lowNumber+1,screen,0xDDDDDDFF);
}
+
+ firstItemY=-lowNumber;
SDL_Rect clip;
clip.x=0;
clip.y=-lowNumber;
clip.w=images.at(currentItem)->w;
clip.h=images.at(currentItem)->h+lowNumber;
applySurface(x,y,images.at(currentItem),screen,&clip);
break;
}
currentItem--;
}
}else{
for(int i=scrollBar->value,j=y+1;j>height,i<(int)item.size();i++){
//Check if the current item is out side of the widget.
int yOver=images[i]->h;
if(j+images[i]->h>y+height)
yOver=y+height-j;
if(yOver>0){
if(selectable){
//Check if the mouse is hovering on current entry. If so draw borders around it.
if(state==i)
drawGUIBox(x,j-1,width,yOver+1,screen,0x00000000);
//Check if the current entry is selected. If so draw a gray background.
if(value==i)
drawGUIBox(x,j-1,width,yOver+1,screen,0xDDDDDDFF);
}
//Draw the image.
SDL_Rect clip;
clip.x=0;
clip.y=0;
clip.w=images[i]->w;
clip.h=yOver;
applySurface(x,j,images[i],screen,&clip);
}else{
break;
}
j+=images[i]->h;
}
}
//Draw borders around the whole thing.
drawGUIBox(x,y,width,height,screen,0x00000000);
//We now need to draw all the children of the GUIObject.
for(unsigned int i=0;i<childControls.size();i++){
childControls[i]->render(x,y,draw);
}
}
void GUIListBox::clearItems(){
item.clear();
for(unsigned int i=0;i<images.size();i++){
SDL_FreeSurface(images[i]);
}
images.clear();
}
void GUIListBox::addItem(std::string name, SDL_Surface* image){
item.push_back(name);
if(image){
images.push_back(image);
}else if(!image&&!name.empty()){
SDL_Color black={0,0,0,0};
SDL_Surface* tmp=TTF_RenderUTF8_Blended(fontText,name.c_str(),black);
images.push_back(tmp);
}
updateScrollbar=true;
}
void GUIListBox::updateItem(int index, std::string newText, SDL_Surface* newImage){
item.at(index)=newText;
if(newImage){
SDL_FreeSurface(images.at(index));
images.at(index)=newImage;
}else if(!newImage&&!newText.empty()){
SDL_FreeSurface(images.at(index));
SDL_Color black={0,0,0,0};
SDL_Surface* tmp=TTF_RenderUTF8_Blended(fontText,newText.c_str(),black);
images.at(index)=tmp;
}
updateScrollbar=true;
}
std::string GUIListBox::getItem(int index){
return item.at(index);
}
GUISingleLineListBox::GUISingleLineListBox(int left,int top,int width,int height,bool enabled,bool visible,int gravity):
GUIObject(left,top,width,height,NULL,-1,enabled,visible,gravity),animation(0){}
void GUISingleLineListBox::addItem(string name,string label){
//Check if the label is set, if not use the name.
if(label.size()==0)
label=name;
item.push_back(pair<string,string>(name,label));
}
void GUISingleLineListBox::addItems(vector<pair<string,string> > items){
vector<pair<string,string> >::iterator it;
for(it=items.begin();it!=items.end();++it){
addItem(it->first,it->second);
}
}
void GUISingleLineListBox::addItems(vector<string> items){
vector<string>::iterator it;
for(it=items.begin();it!=items.end();++it){
addItem(*it);
}
}
string GUISingleLineListBox::getName(unsigned int index){
if(index==-1)
index=value;
if(index<0||index>item.size())
return "";
return item[index].first;
}
bool GUISingleLineListBox::handleEvents(int x,int y,bool enabled,bool visible,bool processed){
//Boolean if the event is processed.
bool b=processed;
//The GUIObject is only enabled when he and his parent(s) are enabled.
enabled=enabled && this->enabled;
//The GUIObject is only enabled when he and his parent(s) are enabled.
visible=visible && this->visible;
//Get the absolute position.
x+=left-gravityX;
y+=top;
state&=~0xF;
if(enabled&&visible){
//The mouse location (x=i, y=j) and the mouse button (k).
int i,j,k;
k=SDL_GetMouseState(&i,&j);
//Convert the mouse location to a relative location.
i-=x;
j-=y;
//The selected button.
//0=nothing 1=left 2=right.
int idx=0;
//Check which button the mouse is above.
if(i>=0&&i<width&&j>=0&&j<height){
if(i<26 && i<width/2){
//The left arrow.
idx=1;
}else if(i>=width-26){
//The right arrow.
idx=2;
}
}
//If idx is 0 it means the mous doesn't hover any arrow so reset animation.
if(idx==0)
animation=0;
//Check if there's a mouse button press or not.
if(k&SDL_BUTTON(1)){
if(((state>>4)&0xF)==idx)
state|=idx;
}else{
state|=idx;
}
//Check if there's a mouse press.
if(event.type==SDL_MOUSEBUTTONDOWN && event.button.button==SDL_BUTTON_LEFT && idx){
state=idx|(idx<<4);
}else if(event.type==SDL_MOUSEBUTTONUP && event.button.button==SDL_BUTTON_LEFT && idx && ((state>>4)&0xF)==idx){
int m=(int)item.size();
if(m>0){
if(idx==2){
idx=value+1;
if(idx<0||idx>=m) idx=0;
if(idx!=value){
value=idx;
//If there is an event callback then call it.
if(eventCallback){
GUIEvent e={eventCallback,name,this,GUIEventClick};
GUIEventQueue.push_back(e);
}
}
}else if(idx==1){
idx=value-1;
if(idx<0||idx>=m) idx=m-1;
if(idx!=value){
value=idx;
//If there is an event callback then call it.
if(eventCallback){
GUIEvent e={eventCallback,name,this,GUIEventClick};
GUIEventQueue.push_back(e);
}
}
}
}
}
if(event.type==SDL_MOUSEBUTTONUP) state&=0xF;
}else{
//Set state zero.
state=0;
}
return b;
}
void GUISingleLineListBox::render(int x,int y,bool draw){
//Rectangle the size of the GUIObject, used to draw borders.
SDL_Rect r;
//There's no need drawing the GUIObject when it's invisible.
if(!visible)
return;
//NOTE: logic in the render method since it's the only part that gets called every frame.
if((state&0xF)==0x1 || (state&0xF)==0x2){
animation++;
if(animation>20)
animation=-20;
}
//Get the absolute x and y location.
x+=left;
y+=top;
if(gravity==GUIGravityCenter)
gravityX=int(width/2);
else if(gravity==GUIGravityRight)
gravityX=width;
x-=gravityX;
//Check if the enabled state changed or the caption, if so we need to clear the (old) cache.
if(enabled!=cachedEnabled || item[value].second.compare(cachedCaption)!=0){
//Free the cache.
SDL_FreeSurface(cache);
cache=NULL;
//And cache the new values.
cachedEnabled=enabled;
cachedCaption=item[value].second;
}
//Draw the text.
if(value>=0 && value<(int)item.size()){
//Get the text.
const char* lp=item[value].second.c_str();
//Check if the text is empty or not.
if(lp!=NULL && lp[0]){
if(!cache){
SDL_Color color;
if(inDialog)
color=themeTextColorDialog;
else
color=themeTextColor;
cache=TTF_RenderUTF8_Blended(fontGUI,lp,color);
//If the text is too wide then we change to smaller font (?)
//NOTE: The width is 32px smaller (2x16px for the arrows).
if(cache->w>width-32){
SDL_FreeSurface(cache);
cache=TTF_RenderUTF8_Blended(fontGUISmall,lp,color);
}
}
if(draw){
//Center the text both vertically as horizontally.
r.x=x+(width-cache->w)/2;
r.y=y+(height-cache->h)/2-GUI_FONT_RAISE;
//Draw the text and free the surface afterwards.
SDL_BlitSurface(cache,NULL,screen,&r);
}
}
}
if(draw){
//Draw the arrows.
SDL_Rect r2={48,0,16,16};
r.x=x;
if((state&0xF)==0x1)
r.x+=abs(animation/2);
r.y=y+4;
if(inDialog)
applySurface(r.x,r.y,arrowLeft2,screen,NULL);
else
applySurface(r.x,r.y,arrowLeft1,screen,NULL);
r.x=x+width-16;
if((state&0xF)==0x2)
r.x-=abs(animation/2);
if(inDialog)
applySurface(r.x,r.y,arrowRight2,screen,NULL);
else
applySurface(r.x,r.y,arrowRight1,screen,NULL);
}
}
diff --git a/src/GUIListBox.h b/src/GUIListBox.h
index e2c8b90..1d95028 100644
--- a/src/GUIListBox.h
+++ b/src/GUIListBox.h
@@ -1,144 +1,142 @@
/*
* Copyright (C) 2011-2012 Me and My Shadow
*
* This file is part of Me and My Shadow.
*
* Me and My Shadow 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.
*
* Me and My Shadow 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 Me and My Shadow. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GUILISTBOX_H
#define GUILISTBOX_H
#include "GUIObject.h"
#include "GUIScrollBar.h"
//GUIObject that displays a list.
//It extends GUIObject because it's a special GUIObject.
class GUIListBox:public GUIObject{
public:
//Vector containing the entries of the list.
std::vector<std::string> item;
std::vector<SDL_Surface*> images;
bool selectable;
//Boolean if the listbox should send click events.
bool clickEvents;
private:
//Scrollbar used when there are more entries than fit on the screen.
GUIScrollBar* scrollBar;
+
+ int firstItemY;
//Boolean if update for scrollbar is needed.
bool updateScrollbar;
-
- //Integer for height of a single item.
- //TODO: Remove this variable and because different items can be different size.
- int itemHeight;
public:
//Constructor.
//left: The relative x location of the GUIListBox.
//top: The relative y location of the GUIListBox.
//witdh: The width of the GUIListBox.
//height: The height of the GUIListBox.
//enabled: Boolean if the GUIListBox is enabled or not.
//visible: Boolean if the GUIListBox is visisble or not.
GUIListBox(int left=0,int top=0,int width=0,int height=0,bool enabled=true,bool visible=true,int gravity=GUIGravityLeft);
//Destructor
~GUIListBox();
//Method to remove all items and clear cache.
void clearItems();
//Method to add an item to the widget.
//name: Text of the item.
//image: Custom image for the widget, if NULL the image will be generated from name string.
void addItem(std::string name, SDL_Surface* image=NULL);
//Method to update an item in the widget.
//index: index of the item.
//newName: New text for the item.
//newImage: New custom image for the widget, if NULL the image will be generated from newName string.
void updateItem(int index, std::string newText, SDL_Surface* newImage=NULL);
//Method used the get item names from the widget.
//index: index of the item.
std::string getItem(int index);
//Method used to handle mouse and/or key events.
//x: The x mouse location.
//y: The y mouse location.
//enabled: Boolean if the parent is enabled or not.
//visible: Boolean if the parent is visible or not.
//processed: Boolean if the event has been processed (by the parent) or not.
//Returns: Boolean if the event is processed by the child.
virtual bool handleEvents(int x=0,int y=0,bool enabled=true,bool visible=true,bool processed=false);
//Method that will render the GUIListBox.
//x: The x location to draw the GUIListBox. (x+left)
//y: The y location to draw the GUIListBox. (y+top)
virtual void render(int x=0,int y=0,bool draw=true);
};
//GUIObject that displays a list on only one line.
//Instead of clicking the entries of the list you iterate through them.
//It extends GUIObject because it's a special GUIObject.
class GUISingleLineListBox:public GUIObject{
public:
//Vector containing the entries of the list.
std::vector<std::pair<std::string,std::string> > item;
//Integer used for the animation of the arrow.
int animation;
public:
//Constructor.
//left: The relative x location of the GUIListBox.
//top: The relative y location of the GUIListBox.
//witdh: The width of the GUIListBox.
//height: The height of the GUIListBox.
//enabled: Boolean if the GUIListBox is enabled or not.
//visible: Boolean if the GUIListBox is visisble or not.
GUISingleLineListBox(int left=0,int top=0,int width=0,int height=0,bool enabled=true,bool visible=true,int gravity=GUIGravityLeft);
//Method for adding an item to the list.
//name: The name of the item.
//label: The text that is displayed.
void addItem(std::string name,std::string label="");
//Method for adding items from a vector to the list.
//items: Vector containing the items in pairs, first is the name, second the label.
void addItems(std::vector<std::pair<std::string,std::string> > items);
//Method for adding items from a vector to the list.
//items: Vector containing the items, the name will also be used as label.
void addItems(std::vector<std::string> items);
//Method for retrieving the name of an item for a given index.
//index: The index of the item, when -1 is entered the current one will be used.
std::string getName(unsigned int index=-1);
//Method used to handle mouse and/or key events.
//x: The x mouse location.
//y: The y mouse location.
//enabled: Boolean if the parent is enabled or not.
//visible: Boolean if the parent is visible or not.
//processed: Boolean if the event has been processed (by the parent) or not.
//Returns: Boolean if the event is processed by the child.
virtual bool handleEvents(int x=0,int y=0,bool enabled=true,bool visible=true,bool processed=false);
//Method that will render the GUIListBox.
//x: The x location to draw the GUIListBox. (x+left)
//y: The y location to draw the GUIListBox. (y+top)
virtual void render(int x=0,int y=0,bool draw=true);
};
#endif
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